You searched for subject:(Composite Action).
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Texas A&M University
1.
Cummings, Wesley David.
Analytical and Experimental Assessment of an AASHTO I-girder Type I Prestressed with AFRP Tendons.
Degree: 2014, Texas A&M University
URL: http://hdl.handle.net/1969.1/154194 
► Corrosion induced deterioration is one of the main reason for repair and rehabilitation programs in conventional steel reinforced concrete bridge decks. Of all bridges in…
(more)
▼ Corrosion induced deterioration is one of the main reason for repair and rehabilitation programs in conventional steel reinforced concrete bridge decks. Of all bridges in the United States, over 50 percent are constructed of conventional reinforced or prestressed concrete (NACE, 2013), where one in three bridges are considered structurally deficient or functionally obsolete due to corrosion of the steel reinforcement. According to NACE International (2013) the annual cost of corrosion-related maintenance for highway bridges in the U.S. is estimated at $13.6 billion.
Over the past couple of decades, fiber reinforced polymer (FRP) bars have been noted by researchers and engineers as a corrosion-resistant alternative for either conventional reinforcing steel or prestressing strands. High strength-to-weight ratio, corrosion resistance, ease in placement of the bars and accelerated implementation due to light weight are the special characteristics that make these bars an appealing alternative. Up to this end, extensive research has been conducted on the structural performance of FRP reinforced concrete beams and slabs; however, less attention has been paid to FRP reinforced concrete bridge girders in
composite action with the bridge deck. Accounting for the effect of
composite action between the bridge girder and deck can significantly impact the structural performance of the girder including the load and deformation capacities as well as the failure mode. Therefore, separate tests of the FRP concrete beams and slabs may not be sufficient to study the structural behavior and to provide design guidelines for engineers.
This thesis presents the experimental and analytical investigations on structural performance of a full-scale AASHTO I-girder Type I, reinforced and prestressed with aramid fiber reinforced polymer (AFRP) bars, where the bridge girder is
composite with the deck. The major objectives of this research were to develop a reliable prestressing anchorage system, examine the constructability of the full-scale specimen, study the load and deformation capacities, determine whether or not the design criteria per AASHTO LRFD were met, and improve the performance of the specimen by adjusting the prestressing layout.
The specimen was constructed at a prestressing plant in San Marcos, Texas and tested at the High Bay Structural and Material Testing Laboratory on the campus of Texas A&M University. The cross-section of the bridge girder was composed of self-consolidating concrete with a total of 24 prestressed and 8 non-prestressed AFRP bars. The bridge deck consisted of a 203 mm (8 in.) conventional steel reinforced concrete slab. A flexure test was conducted to determine the moment-curvature relationship, flexure load capacity, and failure mode. The test was conducted as a simply supported, four point bending test in order to create a region of constant moment at the center of the beam. Two shear tests were conducted to determine the shear capacity, failure mode, maximum strain in the web, and moment-curvature…
Advisors/Committee Members: Hurlebaus, Stefan (advisor), Mander, John B (committee member), Muliana, Anastasia H (committee member).
Subjects/Keywords: Bridge Girder; Aramid; Fiber; Reinforced; Polymer; FRP; Corrosion; Anchorage; Full-scale; Composite; I-Girder; Composite Action, Composite Material; Prestressed
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APA (6th Edition):
Cummings, W. D. (2014). Analytical and Experimental Assessment of an AASHTO I-girder Type I Prestressed with AFRP Tendons. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/154194
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Cummings, Wesley David. “Analytical and Experimental Assessment of an AASHTO I-girder Type I Prestressed with AFRP Tendons.” 2014. Thesis, Texas A&M University. Accessed December 06, 2019.
http://hdl.handle.net/1969.1/154194.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Cummings, Wesley David. “Analytical and Experimental Assessment of an AASHTO I-girder Type I Prestressed with AFRP Tendons.” 2014. Web. 06 Dec 2019.
Vancouver:
Cummings WD. Analytical and Experimental Assessment of an AASHTO I-girder Type I Prestressed with AFRP Tendons. [Internet] [Thesis]. Texas A&M University; 2014. [cited 2019 Dec 06].
Available from: http://hdl.handle.net/1969.1/154194.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Cummings WD. Analytical and Experimental Assessment of an AASHTO I-girder Type I Prestressed with AFRP Tendons. [Thesis]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/154194
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Dundee
2.
Elabd, Maher Mostafa Abdel-Hakeem.
Effect of composite action on the dynamic behaviour of space structures.
Degree: PhD, 2010, University of Dundee
URL: http://hdl.handle.net/10588/99b1ba2d-af1e-4c64-b184-f9f52afcf722
► The application of composite action ushered a new era in the use of double-layer spaceframes as efficient floor systems in addition to their competitiveness as…
(more)
▼ The application of composite action ushered a new era in the use of double-layer spaceframes as efficient floor systems in addition to their competitiveness as roof coveringstructural systems. Earlier research on space frames demonstrated large improvementsin their static behaviour caused by the introduction of composite action. Theseimprovements included an increase in ductility to avoid progressive collapse, a largeincrease in load-carrying capacity and a considerable reduction in materialconsumption.In this work, the effect of introducing composite action in changing the dynamiccharacteristics of space frames, in particular the natural frequencies and damping ratioswas presented. The study was expanded to determine the effect of composite action inchanging the response to dynamic excitations. The measured responses included thelateral displacements and changes in the internal member force distribution undershaking table vibrations.Three aluminium space frame models of the square on square (SOS) configuration weremanufactured. The first model was non-composite, while composite action was appliedto the other two models with a top aluminium deck and a timber deck, respectively.Two common cases of support conditions were used in connecting the models to theloading frame, which was the platform of the shaking table.Initial displacement method (snap test) was used to determine the frequency of vibrationand the damping ratio of test models in the vertical and horizontal directions usinglogarithmic decrement method. All models were then exposed to shaking tablevibrations to determine the changes in dynamic responses between different models.These tests were repeated for the three models after the successive removal of panelsfrom one direction to identify the changes to their characteristics and behaviour withdifferent aspect ratios.The second part of the study was carried out numerically by using the finite elementpackage ABAQUS. It started by selecting a valid finite element model from nineproposed models using experimental test results on physical structures. A parametricstudy was conducted using the validated finite element model to expand the study toinclude two common space frame configurations; the square on large square (SOLS)and square on diagonal (SOD), and two other cases of support configurations, namely,fully edge-supported and supports at corners and middle edges of models.Based on the work done in this study, it can be concluded that composite actionchanged the dynamic characteristics of space frames, which was clear in the increase oftheir vibration frequencies in all directions as a result of the increase in stiffness.Furthermore, the increase in stiffness resulted in a general reduction in the dampingratio of space frames covered with aluminium deck, while the high friction with topjoints and the nature of timber as a good energy absorbent material resulted in a variableeffect on the damping ratio associated with the increase in aspect ratio.The effect of composite action was clear in reducing the lateral…
Subjects/Keywords: Space truss; Composite action; Double-layer grid; Dynamic analysis
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APA (6th Edition):
Elabd, M. M. A. (2010). Effect of composite action on the dynamic behaviour of space structures. (Doctoral Dissertation). University of Dundee. Retrieved from http://hdl.handle.net/10588/99b1ba2d-af1e-4c64-b184-f9f52afcf722
Chicago Manual of Style (16th Edition):
Elabd, Maher Mostafa Abdel-Hakeem. “Effect of composite action on the dynamic behaviour of space structures.” 2010. Doctoral Dissertation, University of Dundee. Accessed December 06, 2019.
http://hdl.handle.net/10588/99b1ba2d-af1e-4c64-b184-f9f52afcf722.
MLA Handbook (7th Edition):
Elabd, Maher Mostafa Abdel-Hakeem. “Effect of composite action on the dynamic behaviour of space structures.” 2010. Web. 06 Dec 2019.
Vancouver:
Elabd MMA. Effect of composite action on the dynamic behaviour of space structures. [Internet] [Doctoral dissertation]. University of Dundee; 2010. [cited 2019 Dec 06].
Available from: http://hdl.handle.net/10588/99b1ba2d-af1e-4c64-b184-f9f52afcf722.
Council of Science Editors:
Elabd MMA. Effect of composite action on the dynamic behaviour of space structures. [Doctoral Dissertation]. University of Dundee; 2010. Available from: http://hdl.handle.net/10588/99b1ba2d-af1e-4c64-b184-f9f52afcf722
Penn State University
3.
Fuhrman, Daniel Martin.
Field Performance of a New Fiber Reinforced Polymer Bridge
Deck.
Degree: MS, Civil Engineering, 2013, Penn State University
URL: https://etda.libraries.psu.edu/catalog/19831
► The field performance of a new bridge deck system composed of pultruded trapezoidal fiber reinforced polymer (FRP) tubes wrapped with a filament wound outer layer…
(more)
▼ The field performance of a new bridge deck system
composed of pultruded trapezoidal fiber reinforced polymer (FRP)
tubes wrapped with a filament wound outer layer is described in
this study. The proof of concept FRP deck was installed on a
rehabilitated bridge in Bolivar, NY, in 2012 as part of the
Highways for Life Technology Partnerships Program from the FHWA.
The information gathered from the field test was used to study the
in-situ performance of the prefabricated FRP panels and their
interaction with the steel wide flange support girders. Field data
gathered in this investigation was used to evaluate the composite
action developed by the bolted deck to girder connection system;
establish girder live load distribution factors; and evaluate the
serviceability of the bridge. Results were compared to the AASHTO
LRFD Specifications. Data indicates that the live load is
transferred transversely through the deck to the girders without
developing composite action. The lever rule conservatively predicts
twice the maximum field measured distribution factor on any
interior girder while timber and open steel grate distribution
factors are non-conservative. The AASHTO S/800 deflection limit was
found to be inadequate to govern the rehabilitated bridge
serviceability. Measured girder deflections and calculated
accelerations were compared against appropriate standards and found
to exceed comfort limits by 125% and 245% respectively. Deck
deflections relative to the support girders in regions not under
service loads were determined to be negligible. A laboratory test
also indicated that there is limited movement of the hollo-bolt
connection under service loads.
Subjects/Keywords: FRP; fiber reinforced polymer; deck; bridge;
serviceability; composite action; distribution factors
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APA ·
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APA (6th Edition):
Fuhrman, D. M. (2013). Field Performance of a New Fiber Reinforced Polymer Bridge
Deck. (Masters Thesis). Penn State University. Retrieved from https://etda.libraries.psu.edu/catalog/19831
Chicago Manual of Style (16th Edition):
Fuhrman, Daniel Martin. “Field Performance of a New Fiber Reinforced Polymer Bridge
Deck.” 2013. Masters Thesis, Penn State University. Accessed December 06, 2019.
https://etda.libraries.psu.edu/catalog/19831.
MLA Handbook (7th Edition):
Fuhrman, Daniel Martin. “Field Performance of a New Fiber Reinforced Polymer Bridge
Deck.” 2013. Web. 06 Dec 2019.
Vancouver:
Fuhrman DM. Field Performance of a New Fiber Reinforced Polymer Bridge
Deck. [Internet] [Masters thesis]. Penn State University; 2013. [cited 2019 Dec 06].
Available from: https://etda.libraries.psu.edu/catalog/19831.
Council of Science Editors:
Fuhrman DM. Field Performance of a New Fiber Reinforced Polymer Bridge
Deck. [Masters Thesis]. Penn State University; 2013. Available from: https://etda.libraries.psu.edu/catalog/19831
University of Manchester
4.
Beshir, Moustafa Abdelghaffar Elgharib
zayed.
ROBUSTNESS OF COMPOSITE FRAMED STRUCTURES IN
FIRE.
Degree: 2016, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:298477
► This thesis presents the results of a research study to investigate the behaviour of axially restrained composite beams at ambient and elevated temperatures, and how…
(more)
▼ This thesis presents the results of a research
study to investigate the behaviour of axially restrained
composite
beams at ambient and elevated temperatures, and how
composite beams
and their connections contribute to the robustness of
composite
framed structures in fire. The commercial finite element analysis
package (ABAQUS, 2010) was used to develop the numerical simulation
models. This research includes the following four main parts: (1)
validation of the simulation model; (2) behaviour of axially
restrained
composite beams with partial shear interaction at
ambient and elevated temperatures; (3) behaviour of
composite beams
with realistic connections at elevated temperatures and methods of
increasing
composite beam survival temperatures; and (4) response
and robustness of
composite frame structures with different extents
of damage at elevated temperatures.Based on the results of
composite beams, it was found that the survival of axially
restrained beams is dominated by the development of catenary
action. By utilising catenary
action, it is possible for
composite
beams to develop load carrying capacity significantly above that
based on bending resistance. During the development of catenary
action, the compression force in the concrete flange of the
composite beam decreases, thus reducing the forces in the shear
connectors. As a result, the behaviour of shear connector failures
ceases to be an issue during the catenary
action stage. The results
further show that, the load carrying capacities/survival
temperatures of
composite beams increase by increasing the level of
axial restraint up to a certain limit and then decrease at higher
levels. Typical realistic
composite structures can provide
composite beams with sufficient axial restraint to develop catenary
action. For detailed
composite beams with
composite connections,
three different beam sizes were investigated using flushed and
extended end plate connections with different amounts of slab
reinforcement, different load ratios and different bolt sizes. It
has been found that the most important method to increase the
survival time of
composite beams is to use extended end plate
connections with sufficient top and bottom reinforcement meshes in
the concrete slab, i.e. increasing the amount of slab reinforcement
is more beneficial than increasing the bolt size or the number of
bolts.Based on the results of modelling a four bay (9 m each, two
storey, 4 m high)
composite frame with different extents of fire
damage to different members, it was found that whenever any of the
columns failed, progressive collapse of the frame would occur.
Therefore, damages to columns should be prevented or the columns
should be designed and constructed to allow for possible damage. If
the beams are damaged, it is still possible for the damaged frame
to achieve the reference fire resistance time of the undamaged
structure (which is used as the criterion to accept that the
damaged frame has sufficient robustness) by developing catenary
action in the damaged beam. For this to happen, the…
Advisors/Committee Members: SWAILES, TOM T, Swailes, Tom, Wang, Yong.
Subjects/Keywords: Robustness; Composite steel concrete structure;
catenary action; Fire; Partial damage
Record Details
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Record Details
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Cite
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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Manager
APA (6th Edition):
Beshir, M. A. E. (2016). ROBUSTNESS OF COMPOSITE FRAMED STRUCTURES IN
FIRE. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:298477
Chicago Manual of Style (16th Edition):
Beshir, Moustafa Abdelghaffar Elgharib. “ROBUSTNESS OF COMPOSITE FRAMED STRUCTURES IN
FIRE.” 2016. Doctoral Dissertation, University of Manchester. Accessed December 06, 2019.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:298477.
MLA Handbook (7th Edition):
Beshir, Moustafa Abdelghaffar Elgharib. “ROBUSTNESS OF COMPOSITE FRAMED STRUCTURES IN
FIRE.” 2016. Web. 06 Dec 2019.
Vancouver:
Beshir MAE. ROBUSTNESS OF COMPOSITE FRAMED STRUCTURES IN
FIRE. [Internet] [Doctoral dissertation]. University of Manchester; 2016. [cited 2019 Dec 06].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:298477.
Council of Science Editors:
Beshir MAE. ROBUSTNESS OF COMPOSITE FRAMED STRUCTURES IN
FIRE. [Doctoral Dissertation]. University of Manchester; 2016. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:298477
University of Dundee
5.
Elabd, Maher Mostafa Abdel-Hakeem.
Effect of composite action on the dynamic behaviour of space structures.
Degree: PhD, 2010, University of Dundee
URL: https://discovery.dundee.ac.uk/en/studentTheses/99b1ba2d-af1e-4c64-b184-f9f52afcf722
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578740
► The application of composite action ushered a new era in the use of double-layer spaceframes as efficient floor systems in addition to their competitiveness as…
(more)
▼ The application of composite action ushered a new era in the use of double-layer spaceframes as efficient floor systems in addition to their competitiveness as roof coveringstructural systems. Earlier research on space frames demonstrated large improvementsin their static behaviour caused by the introduction of composite action. Theseimprovements included an increase in ductility to avoid progressive collapse, a largeincrease in load-carrying capacity and a considerable reduction in materialconsumption.In this work, the effect of introducing composite action in changing the dynamiccharacteristics of space frames, in particular the natural frequencies and damping ratioswas presented. The study was expanded to determine the effect of composite action inchanging the response to dynamic excitations. The measured responses included thelateral displacements and changes in the internal member force distribution undershaking table vibrations.Three aluminium space frame models of the square on square (SOS) configuration weremanufactured. The first model was non-composite, while composite action was appliedto the other two models with a top aluminium deck and a timber deck, respectively.Two common cases of support conditions were used in connecting the models to theloading frame, which was the platform of the shaking table.Initial displacement method (snap test) was used to determine the frequency of vibrationand the damping ratio of test models in the vertical and horizontal directions usinglogarithmic decrement method. All models were then exposed to shaking tablevibrations to determine the changes in dynamic responses between different models.These tests were repeated for the three models after the successive removal of panelsfrom one direction to identify the changes to their characteristics and behaviour withdifferent aspect ratios.The second part of the study was carried out numerically by using the finite elementpackage ABAQUS. It started by selecting a valid finite element model from nineproposed models using experimental test results on physical structures. A parametricstudy was conducted using the validated finite element model to expand the study toinclude two common space frame configurations; the square on large square (SOLS)and square on diagonal (SOD), and two other cases of support configurations, namely,fully edge-supported and supports at corners and middle edges of models.Based on the work done in this study, it can be concluded that composite actionchanged the dynamic characteristics of space frames, which was clear in the increase oftheir vibration frequencies in all directions as a result of the increase in stiffness.Furthermore, the increase in stiffness resulted in a general reduction in the dampingratio of space frames covered with aluminium deck, while the high friction with topjoints and the nature of timber as a good energy absorbent material resulted in a variableeffect on the damping ratio associated with the increase in aspect ratio.The effect of composite action was clear in reducing the lateral…
Subjects/Keywords: 624; Space truss; Composite action; Double-layer grid; Dynamic analysis
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Record Details
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Elabd, M. M. A. (2010). Effect of composite action on the dynamic behaviour of space structures. (Doctoral Dissertation). University of Dundee. Retrieved from https://discovery.dundee.ac.uk/en/studentTheses/99b1ba2d-af1e-4c64-b184-f9f52afcf722 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578740
Chicago Manual of Style (16th Edition):
Elabd, Maher Mostafa Abdel-Hakeem. “Effect of composite action on the dynamic behaviour of space structures.” 2010. Doctoral Dissertation, University of Dundee. Accessed December 06, 2019.
https://discovery.dundee.ac.uk/en/studentTheses/99b1ba2d-af1e-4c64-b184-f9f52afcf722 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578740.
MLA Handbook (7th Edition):
Elabd, Maher Mostafa Abdel-Hakeem. “Effect of composite action on the dynamic behaviour of space structures.” 2010. Web. 06 Dec 2019.
Vancouver:
Elabd MMA. Effect of composite action on the dynamic behaviour of space structures. [Internet] [Doctoral dissertation]. University of Dundee; 2010. [cited 2019 Dec 06].
Available from: https://discovery.dundee.ac.uk/en/studentTheses/99b1ba2d-af1e-4c64-b184-f9f52afcf722 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578740.
Council of Science Editors:
Elabd MMA. Effect of composite action on the dynamic behaviour of space structures. [Doctoral Dissertation]. University of Dundee; 2010. Available from: https://discovery.dundee.ac.uk/en/studentTheses/99b1ba2d-af1e-4c64-b184-f9f52afcf722 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578740
University of Manchester
6.
Beshir, Moustafa.
Robustness of composite framed structures in fire.
Degree: PhD, 2016, University of Manchester
URL: https://www.research.manchester.ac.uk/portal/en/theses/robustness-of-composite-framed-structures-in-fire(9c72a722-5b6a-477b-ac84-cd243ab73f34).html
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713557
► This thesis presents the results of a research study to investigate the behaviour of axially restrained composite beams at ambient and elevated temperatures, and how…
(more)
▼ This thesis presents the results of a research study to investigate the behaviour of axially restrained composite beams at ambient and elevated temperatures, and how composite beams and their connections contribute to the robustness of composite framed structures in fire. The commercial finite element analysis package (ABAQUS, 2010) was used to develop the numerical simulation models. This research includes the following four main parts: (1) validation of the simulation model; (2) behaviour of axially restrained composite beams with partial shear interaction at ambient and elevated temperatures; (3) behaviour of composite beams with realistic connections at elevated temperatures and methods of increasing composite beam survival temperatures; and (4) response and robustness of composite frame structures with different extents of damage at elevated temperatures. Based on the results of composite beams, it was found that the survival of axially restrained beams is dominated by the development of catenary action. By utilising catenary action, it is possible for composite beams to develop load carrying capacity significantly above that based on bending resistance. During the development of catenary action, the compression force in the concrete flange of the composite beam decreases, thus reducing the forces in the shear connectors. As a result, the behaviour of shear connector failures ceases to be an issue during the catenary action stage. The results further show that, the load carrying capacities/survival temperatures of composite beams increase by increasing the level of axial restraint up to a certain limit and then decrease at higher levels. Typical realistic composite structures can provide composite beams with sufficient axial restraint to develop catenary action. For detailed composite beams with composite connections, three different beam sizes were investigated using flushed and extended end plate connections with different amounts of slab reinforcement, different load ratios and different bolt sizes. It has been found that the most important method to increase the survival time of composite beams is to use extended end plate connections with sufficient top and bottom reinforcement meshes in the concrete slab, i.e. increasing the amount of slab reinforcement is more beneficial than increasing the bolt size or the number of bolts. Based on the results of modelling a four bay (9 m each, two storey, 4 m high) composite frame with different extents of fire damage to different members, it was found that whenever any of the columns failed, progressive collapse of the frame would occur. Therefore, damages to columns should be prevented or the columns should be designed and constructed to allow for possible damage. If the beams are damaged, it is still possible for the damaged frame to achieve the reference fire resistance time of the undamaged structure (which is used as the criterion to accept that the damaged frame has sufficient robustness) by developing catenary action in the damaged beam. For this to happen, the…
Subjects/Keywords: 624.1; Robustness; Composite steel concrete structure; catenary action; Fire; Partial damage
Record Details
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Record Details
Similar Records
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Beshir, M. (2016). Robustness of composite framed structures in fire. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/robustness-of-composite-framed-structures-in-fire(9c72a722-5b6a-477b-ac84-cd243ab73f34).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713557
Chicago Manual of Style (16th Edition):
Beshir, Moustafa. “Robustness of composite framed structures in fire.” 2016. Doctoral Dissertation, University of Manchester. Accessed December 06, 2019.
https://www.research.manchester.ac.uk/portal/en/theses/robustness-of-composite-framed-structures-in-fire(9c72a722-5b6a-477b-ac84-cd243ab73f34).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713557.
MLA Handbook (7th Edition):
Beshir, Moustafa. “Robustness of composite framed structures in fire.” 2016. Web. 06 Dec 2019.
Vancouver:
Beshir M. Robustness of composite framed structures in fire. [Internet] [Doctoral dissertation]. University of Manchester; 2016. [cited 2019 Dec 06].
Available from: https://www.research.manchester.ac.uk/portal/en/theses/robustness-of-composite-framed-structures-in-fire(9c72a722-5b6a-477b-ac84-cd243ab73f34).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713557.
Council of Science Editors:
Beshir M. Robustness of composite framed structures in fire. [Doctoral Dissertation]. University of Manchester; 2016. Available from: https://www.research.manchester.ac.uk/portal/en/theses/robustness-of-composite-framed-structures-in-fire(9c72a722-5b6a-477b-ac84-cd243ab73f34).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713557
Kansas State University
7.
Loehr, Weston.
The influence
of fastener spacing on the slip modulus between cold formed steel
and wood sheathing.
Degree: MS, Civil Engineering, 2016, Kansas State University
URL: http://hdl.handle.net/2097/32722
► Composite action is the joint behavior of two elements connected or bonded together. It is a phenomenon that is utilized in several applications throughout engineering.…
(more)
▼ Composite action is the joint behavior of two elements
connected or bonded together. It is a phenomenon that is utilized
in several applications throughout engineering. Previous studies
have shown that cold formed steel (CFS) sheathed with structural
wood panels exhibits a degree of partial
composite action behavior.
However currently in the design process, CFS and wood sheathing
systems are considered separately in a non-
composite manner due to
the absence of sufficient supporting data. These systems can
include the floors, roofs, and walls of a building. In order to
determine the level of
composite action present, the slip modulus
is needed. The slip modulus describes the relationship between the
shear force and the displacement exhibited by two elements in a
composite system. The scope of this research is to determine the
influence of fastener spacing on the slip modulus and provide a
foundation of information to fully define the
composite action
between CFS and wood sheathing.
Advisors/Committee Members: Hani G. MelhemBill Zhang.
Subjects/Keywords: Engineering; Cold-formed
steel; Composite
action; Slip
modulus
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APA (6th Edition):
Loehr, W. (2016). The influence
of fastener spacing on the slip modulus between cold formed steel
and wood sheathing. (Masters Thesis). Kansas State University. Retrieved from http://hdl.handle.net/2097/32722
Chicago Manual of Style (16th Edition):
Loehr, Weston. “The influence
of fastener spacing on the slip modulus between cold formed steel
and wood sheathing.” 2016. Masters Thesis, Kansas State University. Accessed December 06, 2019.
http://hdl.handle.net/2097/32722.
MLA Handbook (7th Edition):
Loehr, Weston. “The influence
of fastener spacing on the slip modulus between cold formed steel
and wood sheathing.” 2016. Web. 06 Dec 2019.
Vancouver:
Loehr W. The influence
of fastener spacing on the slip modulus between cold formed steel
and wood sheathing. [Internet] [Masters thesis]. Kansas State University; 2016. [cited 2019 Dec 06].
Available from: http://hdl.handle.net/2097/32722.
Council of Science Editors:
Loehr W. The influence
of fastener spacing on the slip modulus between cold formed steel
and wood sheathing. [Masters Thesis]. Kansas State University; 2016. Available from: http://hdl.handle.net/2097/32722
Utah State University
8.
Olsen, Jaiden Thomas.
Developing a General Methodology for Evaluating Composite Action in Insulated Wall Panels.
Degree: MS, Civil and Environmental Engineering, 2017, Utah State University
URL: https://digitalcommons.usu.edu/etd/6548
► Thermal efficiency of Precast Concrete Sandwich Panel Walls has become a major topic when discussing the building envelope in academia. At Utah State University,…
(more)
▼ Thermal efficiency of Precast Concrete Sandwich Panel Walls has become a major topic when discussing the building envelope in academia. At Utah State University, research is being done to evaluate the structural and thermal efficiency of fiber reinforced polymer connectors being used today. In evaluating several different proprietary fiber reinforced polymer systems, researchers plan to develop design procedures to help engineers accurately determine minimum design requirements when using fiber reinforced polymer connectors. This largely requires a determination of the degree of
composite action incurred by each system. Testing is performed by constructing small scale specimens (3 ft. by 4 ft., 0.91 m by 1.22 m). Each specimen contains one of the fiber reinforced polymer connecting systems. By constructing a five-wythe, two wall specimen, direct shear can be applied to the connectors using a push-off shear test method. By performing this test it can be determined to what degree the panel is acting compositely. Once the degree of
composite action is determined, correlation can be made between design and degree of
composite action. Economizing and simplifying this procedure is key to further implementation of precast concrete sandwich panel walls in all areas of our building infrastructure.
Advisors/Committee Members: Marc Maguire, ;.
Subjects/Keywords: general methodology; composite action; insulated wall panels; evaluating; Civil Engineering
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MLA ·
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APA (6th Edition):
Olsen, J. T. (2017). Developing a General Methodology for Evaluating Composite Action in Insulated Wall Panels. (Masters Thesis). Utah State University. Retrieved from https://digitalcommons.usu.edu/etd/6548
Chicago Manual of Style (16th Edition):
Olsen, Jaiden Thomas. “Developing a General Methodology for Evaluating Composite Action in Insulated Wall Panels.” 2017. Masters Thesis, Utah State University. Accessed December 06, 2019.
https://digitalcommons.usu.edu/etd/6548.
MLA Handbook (7th Edition):
Olsen, Jaiden Thomas. “Developing a General Methodology for Evaluating Composite Action in Insulated Wall Panels.” 2017. Web. 06 Dec 2019.
Vancouver:
Olsen JT. Developing a General Methodology for Evaluating Composite Action in Insulated Wall Panels. [Internet] [Masters thesis]. Utah State University; 2017. [cited 2019 Dec 06].
Available from: https://digitalcommons.usu.edu/etd/6548.
Council of Science Editors:
Olsen JT. Developing a General Methodology for Evaluating Composite Action in Insulated Wall Panels. [Masters Thesis]. Utah State University; 2017. Available from: https://digitalcommons.usu.edu/etd/6548
University of Alberta
9.
Jamshidi,Amirhoushang.
Steel Shear Connections in Composite Frames Subject to
Progressive Collapse.
Degree: PhD, Department of Civil and Environmental
Engineering, 2016, University of Alberta
URL: https://era.library.ualberta.ca/files/c4x51hj092
► The susceptibility of structures to extensive collapse when subjected to a localised failure due to an extreme loading event has in recent years gained considerable…
(more)
▼ The susceptibility of structures to extensive collapse
when subjected to a localised failure due to an extreme loading
event has in recent years gained considerable research attention.
The scenario most often used to assess such performance, either
experimentally or through finite element simulation, is the loss of
a column, requiring the floor system to bridge across two building
bays with the aid of arching and catenary actions. When a column is
abruptly disengaged by an abnormal load, the resulting double-span
beam must bridge over the removed column by developing a new
equilibrium path to redistribute the load to the adjacent elements.
This severe damage in a steel gravity frame, which is designed to
carry primarily gravity loads, creates significant demands on shear
connections. The response of steel shear connections as a component
of steel gravity composite frame systems under the column removal
scenario is still largely unknown due to the complex interaction
between the slab and the steel framework at large deflections.
While the slab itself can participate in maintaining the integrity
of the overall floor system, its presence amplifies the demand on
the steel connections after experiencing initial flexural action.
This research investigated the behaviour of steel shear connections
in composite frames under a simulated progressive collapse
scenario. The research objectives, experimental protocols, and the
most significant conclusions drawn from test observations are
discussed. The present study describes the details of a
comprehensive experimental and numerical program that has been
completed to assess the behaviour of connections in composite floor
construction by evaluating the failure mode, load carrying
mechanisms, strength, and ductility of the connections. An
experimental program consisting of 17 full-scale physical tests was
performed on connections that included shear tabs and double
angles. A variety of parameters were considered, including the
connection type, connection depth, connection material thickness,
and notional beam span. A testing procedure based on the proposed
loading protocols was developed and executed on connections to
simulate demands and deformations expected in a composite floor
system under a column removal scenario. The second part of this
research consisted of comprehensive finite element modelling and
analysis techniques. Models were validated using the test results.
They were also expanded to investigate the effects of critical
parameters on the performance of shear connections in composite
frames. Detailed three-dimensional prototype simulations were
evaluated and compared with the simplified finite element models
and physical tests. The overall capacity of the prototype systems
was evaluated and compared with the integrity requirements
stipulated in current Canadian and US building codes and design
guidelines. Design recommendations based on the experiments and
finite element models are proposed for calculating the capacity and
ductility of shear connections in composite…
Subjects/Keywords: Composite Frame; Catenary Action; Composite Construction System; Double Angle; Arching Action; Steel Shear Connections; Concrete Slab; Compressive Ring; Progressive Collapse; Disproportionate Collapse; Shear Tab
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APA ·
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MLA ·
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APA (6th Edition):
Jamshidi,Amirhoushang. (2016). Steel Shear Connections in Composite Frames Subject to
Progressive Collapse. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/c4x51hj092
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Chicago Manual of Style (16th Edition):
Jamshidi,Amirhoushang. “Steel Shear Connections in Composite Frames Subject to
Progressive Collapse.” 2016. Doctoral Dissertation, University of Alberta. Accessed December 06, 2019.
https://era.library.ualberta.ca/files/c4x51hj092.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
MLA Handbook (7th Edition):
Jamshidi,Amirhoushang. “Steel Shear Connections in Composite Frames Subject to
Progressive Collapse.” 2016. Web. 06 Dec 2019.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Vancouver:
Jamshidi,Amirhoushang. Steel Shear Connections in Composite Frames Subject to
Progressive Collapse. [Internet] [Doctoral dissertation]. University of Alberta; 2016. [cited 2019 Dec 06].
Available from: https://era.library.ualberta.ca/files/c4x51hj092.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Council of Science Editors:
Jamshidi,Amirhoushang. Steel Shear Connections in Composite Frames Subject to
Progressive Collapse. [Doctoral Dissertation]. University of Alberta; 2016. Available from: https://era.library.ualberta.ca/files/c4x51hj092
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
McMaster University
10.
Grimshaw, Samuel.
Polyamide Carbon Fibre Filled Composite Ageing Characterization in Conventional Automotive Fluids.
Degree: MASc, 2016, McMaster University
URL: http://hdl.handle.net/11375/20549
► The use of carbon fibre-reinforced plastic technology is steadily gaining traction in the modern automotive industry as a lightweight alternative to conventional materials. The versatile…
(more)
▼ The use of carbon fibre-reinforced plastic technology is steadily gaining traction in the modern automotive industry as a lightweight alternative to conventional materials. The versatile chemical resistance of polyamide resins combined with the high strength properties of carbon fibre filler content aims to meet this growing need in the industry. By employing a number of accelerated and amplified ageing techniques, this work hopes to assess the resilience of carbon fibre-reinforced polyamide composites in a variety of foreseeable chemical, temperature, moisture, and stress environments.
The resins included in this characterization study include polyamide-6 (PA6) and polyamide-6,6 (PA6/6). The carbon fibre-reinforced composite specimens are subject to long term immersion in commercial automotive fluids at room and elevated temperatures. Results show that the mechanical properties of both polyamide resins are sensitive to windshield washer fluid exposure, regardless of temperature. The significant drop in glass transition temperature and greater elongation at break confirmed a plasticization effect. The Young’s modulus and tensile strength experienced a loss of approximately 40% at saturation.
Elevated temperatures resulted in increased fluid sorption rates of antifreeze and E-20 gasoline into the PA6 composite specimens. Likewise, a corresponding drop in PA6 composite mechanical properties was noted for the antifreeze and E-20 gasoline at elevated temperatures. The mechanical properties of the PA6/6 composite were largely retained in all tested automotive fluids, except windshield washer fluid, at elevated temperatures. The effect of absorbed fluid on mechanical properties tended to increase with higher fibre loadings for the PA6/6 composite and lower fibre loadings for the PA6 composite.
Finally, a single parameter acoustic emission testing technique was employed to assess internal damage of stressed PA6 composite specimens exposed to different temperature and humidity levels. However, there was no discernible correlation between environmental stress conditions and internal damage for short term exposure times.
Thesis
Master of Applied Science (MASc)
The use of carbon fibre-reinforced plastic technology is steadily gaining traction in the modern automotive industry as a lightweight alternative to conventional materials. The versatile chemical resistance of polyamide resins combined with the high strength properties of carbon fibre filler content aims to meet this growing need in the industry. By employing a number of accelerated and amplified ageing techniques, this work assessed the resilience of carbon fibre-reinforced polyamide composites in a variety of foreseeable chemical, temperature, moisture, and stress environments. The composite only showed significant sensitivity to windshield wiper fluid in the tests.
Advisors/Committee Members: Thompson, Michael, Chemical Engineering.
Subjects/Keywords: polyamide; carbon fibre; composite; ageing; characterization; automotive; chemical resistance; mechanical degradation; plasticization; capillary action; diffusion
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APA (6th Edition):
Grimshaw, S. (2016). Polyamide Carbon Fibre Filled Composite Ageing Characterization in Conventional Automotive Fluids. (Masters Thesis). McMaster University. Retrieved from http://hdl.handle.net/11375/20549
Chicago Manual of Style (16th Edition):
Grimshaw, Samuel. “Polyamide Carbon Fibre Filled Composite Ageing Characterization in Conventional Automotive Fluids.” 2016. Masters Thesis, McMaster University. Accessed December 06, 2019.
http://hdl.handle.net/11375/20549.
MLA Handbook (7th Edition):
Grimshaw, Samuel. “Polyamide Carbon Fibre Filled Composite Ageing Characterization in Conventional Automotive Fluids.” 2016. Web. 06 Dec 2019.
Vancouver:
Grimshaw S. Polyamide Carbon Fibre Filled Composite Ageing Characterization in Conventional Automotive Fluids. [Internet] [Masters thesis]. McMaster University; 2016. [cited 2019 Dec 06].
Available from: http://hdl.handle.net/11375/20549.
Council of Science Editors:
Grimshaw S. Polyamide Carbon Fibre Filled Composite Ageing Characterization in Conventional Automotive Fluids. [Masters Thesis]. McMaster University; 2016. Available from: http://hdl.handle.net/11375/20549
11.
Fredriksson, Jacob.
Breddning av samverkansbroar : En studie om förberedande åtgärder vid nyproduktion av samverkansbroar för att klara framtida körfältsökningar.
Degree: Environmental and Natural Resources Engineering, 2019, Luleå University of Technology
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-73047
► The purpose of this master thesis is to provide suggestions of how composite bridges with I-beams (steel beams and concrete slab connected via shear…
(more)
▼ The purpose of this master thesis is to provide suggestions of how composite bridges with I-beams (steel beams and concrete slab connected via shear connectors) can be prepared during the construction phase to withstand a future widening. As a case study the project "Bridge over Kalix river in Kalix" has been used. Tender documents were provided to the stakeholders in September 2018 and the tender answers were at the Swedish Transport Administration (Trafikverket) in mid-January 2019. The construction work is planned for the summer of 2019 and the bridge is planned to be operational by the end of 2020. Widening of bridges is an expensive change of the structure, but is done occasionally. This is mainly due to two factors; higher safety regulations and a higher number on passing vehicles per time unit compared to the 1950 when many of the bridges in Sweden were constructed. Beyond the increased amount of traffic, the vehicle and lorries are heavier nowadays and the expected life time of the bridge construction is longer. The thesis has resulted in three suggestions of widening constructions; one for the case study and two for the general case. The suggestions are based on the change in loads (both shear force and bending moment) caused by dead loads and traffic loads due to the theoretical widening of 2,5 meters. The widened part is constructed to withstand service vehicle (e.g. snow removal vehicle), but the carrying capacity for the rest of the bridge deck is 74-tonnes vehicle. The obtained result shows that both the shear force and the mid-span bending moment increases. The shear force increases in total 45,8 % (dead load 65,8 % and traffic load 7,3 %) and the bending moment 56,7 % (dead load 61,3 % and traffic load 10,0 %). With these value as base the suggested widening construction for the case study is a tilted column with tie beam, both with center distance of six meters. To the general case, two suggestions are provided; The first one with a steel plate placed in the same way as the tilted column, but with a greater load carrying cross section area and thus a greater area to spread the load onto the concrete slab and the web of the beam. The second suggestion is simply an extra I-beam parallel to the existing ones. This is an established method in widenings where the additional load is great, but it is a method highly dependent on the design of the bridge and the surrounding nature.
Syftet med examensarbetet är att ge förslag till hur samverkansbroar med I-balkar kan förberedas vid konstruktion för en eventuell framtida körfältsökning (brobreddning). Som fallstudie har projektet "Bro över Kalix älv i Kalix" använts. Förfrågningsunderlag var intressenter tillhanda under tidig höst 2018 och anbud inkom till Trafikverket i mitten av januari 2019. Byggstart planeras till sommaren 2019 och färdig bro planeras vara i drift…
Subjects/Keywords: Composite action; bridge; widening; concrete; steel; samverkan; bro; breddning; betong; stål; Infrastructure Engineering; Infrastrukturteknik
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APA (6th Edition):
Fredriksson, J. (2019). Breddning av samverkansbroar : En studie om förberedande åtgärder vid nyproduktion av samverkansbroar för att klara framtida körfältsökningar. (Thesis). Luleå University of Technology. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-73047
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Fredriksson, Jacob. “Breddning av samverkansbroar : En studie om förberedande åtgärder vid nyproduktion av samverkansbroar för att klara framtida körfältsökningar.” 2019. Thesis, Luleå University of Technology. Accessed December 06, 2019.
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-73047.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Fredriksson, Jacob. “Breddning av samverkansbroar : En studie om förberedande åtgärder vid nyproduktion av samverkansbroar för att klara framtida körfältsökningar.” 2019. Web. 06 Dec 2019.
Vancouver:
Fredriksson J. Breddning av samverkansbroar : En studie om förberedande åtgärder vid nyproduktion av samverkansbroar för att klara framtida körfältsökningar. [Internet] [Thesis]. Luleå University of Technology; 2019. [cited 2019 Dec 06].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-73047.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Fredriksson J. Breddning av samverkansbroar : En studie om förberedande åtgärder vid nyproduktion av samverkansbroar för att klara framtida körfältsökningar. [Thesis]. Luleå University of Technology; 2019. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-73047
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Kansas
12.
Li, Chaohui.
Composite Action in Prestressed NU I-Girder Bridge Deck Systems Constructed with Bond Breakers to Facilitate Deck Removal.
Degree: PhD, Civil, Environmental & Architectural Engineering, 2017, University of Kansas
URL: http://hdl.handle.net/1808/26356
► Results are reported from tests of small scale push-off and large-scale composite NU I-girder specimens conducted to establish an interface connection detail that 1) Facilitates…
(more)
▼ Results are reported from tests of small scale push-off and large-scale
composite NU I-girder specimens conducted to establish an interface connection detail that 1) Facilitates in-situ removal of the bridge deck without damaging prestressed girders and 2) Maintains
composite action between the prestressed girder and reinforced concrete deck throughout the service-life of the structure. Results are also reported from simple 3D models developed to simulate horizontal shear transfer in
composite girders. Sixteen small scale push-off tests were conducted to investigate the influence of surface preparation, bond breakers (epoxy and roofing felt), and interface reinforcement properties (yield strength, reinforcement amount, and means of anchorage) on horizontal shear transfer between precast and cast-in-place concrete surfaces. Based on the push-off test results, a connection detail was proposed that consists of roughening the top flange of the girder directly over the girder web and debonding the remainder of the interface using No. 30 ASTM D4869/D4869M-16a Type I organic roofing felt. Three full-scale
composite NU35 girders, designed and fabricated using the proposed connection detail and two control connection details, were then subjected to a series of tests. First, decks were cast and then removed to quantify the extent to which the proposed connection detail reduced the effort to remove the deck and to document the types and extent of damage caused to the girders by the process. After replacing the decks, the
composite girders were subjected to 2×106 cycles of simulated traffic load and then loaded monotonically to failure. A series of 3D
composite girder models were created in SAP2000 to better understand factors affecting the distribution of slip along the horizontal interface. The girder and deck were simulated using elastic frame and shell elements, respectively, and interface shear was simulated using a series of multilinear link elements. These models were used to simulate the experimental girder tests under service-level loads and to investigate the effects of beam aspect ratio and load position on the distribution of interface shear. The proposed connection (partially roughened/partially debonded with a roofing felt bond breaker) is a viable option for use in practice; its use led to a 2/3 reduction in the effort required to remove the deck over the girder and protected the girder from all non-saw-related damage while also effectively sustaining
composite action through 2×106 cycles of simulated traffic load after deck replacement. The proposed connection can be conservatively designed by neglecting the debonded area when calculating interface shear strength. Other test results showed that surface preparation has a large influence on the stiffness, strength at cracking, and peak strength of a horizontal shear connection; each was greatest for specimens with a fully roughened surface followed by the partially roughened surface, troweled surface, and debonded surface. Increasing the amount of interface shear…
Advisors/Committee Members: Lequesne, Rémy D. (advisor), Ho, Alfred (cmtemember), Lepage, Andrés (cmtemember), Matamoros, Adolfo (cmtemember), O'Reilly, Matt (cmtemember).
Subjects/Keywords: Civil engineering; Bond Breaker; Composite Action; Deck Removal; Fatigue Test; NU I-Girder; Shear Friction
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APA ·
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MLA ·
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Export
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Manager
APA (6th Edition):
Li, C. (2017). Composite Action in Prestressed NU I-Girder Bridge Deck Systems Constructed with Bond Breakers to Facilitate Deck Removal. (Doctoral Dissertation). University of Kansas. Retrieved from http://hdl.handle.net/1808/26356
Chicago Manual of Style (16th Edition):
Li, Chaohui. “Composite Action in Prestressed NU I-Girder Bridge Deck Systems Constructed with Bond Breakers to Facilitate Deck Removal.” 2017. Doctoral Dissertation, University of Kansas. Accessed December 06, 2019.
http://hdl.handle.net/1808/26356.
MLA Handbook (7th Edition):
Li, Chaohui. “Composite Action in Prestressed NU I-Girder Bridge Deck Systems Constructed with Bond Breakers to Facilitate Deck Removal.” 2017. Web. 06 Dec 2019.
Vancouver:
Li C. Composite Action in Prestressed NU I-Girder Bridge Deck Systems Constructed with Bond Breakers to Facilitate Deck Removal. [Internet] [Doctoral dissertation]. University of Kansas; 2017. [cited 2019 Dec 06].
Available from: http://hdl.handle.net/1808/26356.
Council of Science Editors:
Li C. Composite Action in Prestressed NU I-Girder Bridge Deck Systems Constructed with Bond Breakers to Facilitate Deck Removal. [Doctoral Dissertation]. University of Kansas; 2017. Available from: http://hdl.handle.net/1808/26356
Université du Luxembourg
13.
Chrzanowski, Maciej.
Shear Transfer in Heavy Steel-Concrete Composite Columns with Multiple Encased Steel Profiles.
Degree: 2019, Université du Luxembourg
URL: http://orbilu.uni.lu/handle/10993/40011
► The PhD Thesis is dealing with the shear transfer in heavy steel-concrete composite columns with multiple encased steel profiles. In the conducted research, a focus…
(more)
▼ The PhD Thesis is dealing with the shear transfer in heavy steel-concrete
composite columns with multiple encased steel profiles. In the conducted research, a focus was placed on two aspects of shear transfer: (1) local shear transfer at the steel-concrete interface and (2) global shear transfer between the embedded steel profiles. With reference to the current practice, gaps in the knowledge and in the available solutions have been identified.
The development of a novel, easy-applicable and efficient type of shear connectors for an application in
composite columns with one or multiple-encased steel profiles satisfies the improvement need to assure local shear transfer between steel and concrete materials. The novel type of flat shear connectors has a form of reinforcement bars welded to the flanges of steel profiles. Three main orientations, in accordance to the steel beam longitudinal axis, were investigated: 1) transversal, 2) longitudinal and 3) angled under 45° - V-shaped. The force transfer mechanism of the proposed shear connectors considers the usage of the external stirrups to anchorage the compression struts and bear the tensile forces. In parallel, the steel-concrete bond phenomenon was examined and analysed.
In the consideration of the global shear transfer and in respect to the mechanical engineering model and behaviour of large
composite columns with more than one embedded steel profile, the common practice so far is to assume a homogenous system with one stiffness and analyse it based on the Bernoulli beam theory. However, the results of the recent tests caused some doubts whether this approach is correct. The derivation away from the Bernoulli beam behaviour leads to a changed stiffness of the column and hence changed critical buckling load. An innovative hybrid conception has been proposed, where a transition towards the Vierendeel truss model embedded into the Timoshenko beam model is considered in order to govern the identified significant effects of shear deformation. Within this objective, big-scale beam/column members with two embedded steel profiles were examined in order to investigate an internal forces distribution and its bending and shear stiffness.
A complex interaction between the materials and lack of knowledge regarding
composite behaviour in columns with multiple encased steel profiles opens opportunities to develop novel systems and design methods. The described objectives are investigated experimentally and by the FE numerical simulations. As an outcome, an analytical model for the resistance of the developed novel shear connectors and innovative mechanical engineering model for the description of the structural behaviour, as well as effective stiffness, of a
composite member with more than one embedded steel profile are given.
Advisors/Committee Members: Fonds National de la Recherche - FnR [sponsor], Odenbreit, Christoph [superviser], Waldmann, Danièle [president of the jury], Degée, Hervé [member of the jury], Bogdan, Teodora [member of the jury], Lam, Dennis [member of the jury], ArcelorMittal Chair of Steel and Façade Engineering at the University of Luxembourg [research center].
Subjects/Keywords: Steel-concrete composite columns; Multiple encased steel profiles; Shear transfer; Composite action; Shear connection; Structural behaviour; Effective stiffness; Engineering, computing & technology :: Civil engineering [C04]; Ingénierie, informatique & technologie :: Ingénierie civile [C04]
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APA ·
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MLA ·
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APA (6th Edition):
Chrzanowski, M. (2019). Shear Transfer in Heavy Steel-Concrete Composite Columns with Multiple Encased Steel Profiles. (Doctoral Dissertation). Université du Luxembourg. Retrieved from http://orbilu.uni.lu/handle/10993/40011
Chicago Manual of Style (16th Edition):
Chrzanowski, Maciej. “Shear Transfer in Heavy Steel-Concrete Composite Columns with Multiple Encased Steel Profiles.” 2019. Doctoral Dissertation, Université du Luxembourg. Accessed December 06, 2019.
http://orbilu.uni.lu/handle/10993/40011.
MLA Handbook (7th Edition):
Chrzanowski, Maciej. “Shear Transfer in Heavy Steel-Concrete Composite Columns with Multiple Encased Steel Profiles.” 2019. Web. 06 Dec 2019.
Vancouver:
Chrzanowski M. Shear Transfer in Heavy Steel-Concrete Composite Columns with Multiple Encased Steel Profiles. [Internet] [Doctoral dissertation]. Université du Luxembourg; 2019. [cited 2019 Dec 06].
Available from: http://orbilu.uni.lu/handle/10993/40011.
Council of Science Editors:
Chrzanowski M. Shear Transfer in Heavy Steel-Concrete Composite Columns with Multiple Encased Steel Profiles. [Doctoral Dissertation]. Université du Luxembourg; 2019. Available from: http://orbilu.uni.lu/handle/10993/40011
14.
Stahlin, Simon.
Non-Linear FE-Analysis of a Composite Action Girder with Coiled Spring Pins as Shear Connectors.
Degree: Environmental and Natural Resources Engineering, 2019, Luleå University of Technology
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74008
► For bridges to cope with increased requirements such as increased loads, strengthening work can be carried out. In cases where older steel-concrete bridges do…
(more)
▼ For bridges to cope with increased requirements such as increased loads, strengthening work can be carried out. In cases where older steel-concrete bridges do not have a composite action, an alternative is to create composite-action to achieve a higher flexural strength. It is introduced by post-installing shear connectors. There are many different alternatives of shear connectors that can be used, hence a number that can be installed from below the bridge to minimize the impact on the traffic. Coiled Spring Pins are of the interference fit type connector and are put in place from below the bridge by first drilling a hole upward through the upper steel flange and then into the concrete slab. Then, the spiral bolt is pushed up into the drilled hole by means of a hydraulic hammer. Using data from push-out tests and non-linear material models for steel and concrete, a non-linear finite element analysis was created using the commercial finite element software Abaqus. The analysis is based on dimensions and load cases that will mimic a planned full-scale beam test that will be carried out later in 2019. To verify that the material and the model behave in a realistic manner, an analysis was initially performed on a beam without composite-action, and a full-composite action beam with infinitely rigid connectors. These were then compared with hand calculations according to Eurocode. When the material models were verified, it is seen that the materials steel and concrete work for themselves in the analysis without composite-action and together in the analysis with full composite-action. The data for the spiral bolts is than defined instead of infinitely rigid connectors and new analyzes were performed to see the effect of the coiled spring pins properties. The results show that a significant increase in the point load in the middle of the beam can take place before failure occurs after installation of this type of shear connector. Already at a low number of connectors and a low shear connection-ratio, a significant increase in the flexural strength is seen in the beam. By using partial-composite action, with a lower number of spiral bolts, a significant higher flexural strength can be achieved in an economical way.
När kraven på att broar ska klara av ökade laster, kan förstärkningsarbeten utföras. I de fall där äldre stål-betongbroar saknar samverkanseffekt, är det ett alternativ att inför samverkan för att uppnå en högre böj-hållfastighet. Det införs genom att man installerar skjuvförbindare i efterhand. Det finns många olika alternativ av skjuvförbindare som kan användas, därav ett antal som går att installera underifrån bron för att minimera påverkan på trafiken. Spiralbultar (Coiled Spring Pins) är av typen presspassnings-förbindare och sätts på plats underifrån bron genom att det först borras ett hål uppåt genom övre stålflänsen och sedan upp i betongplattan. Därefter pressas spiralbulten upp i det borrade hålet med hjälp av en hydraulisk hammare. Med hjälp av data ifrån…
Subjects/Keywords: composite bridge; composite action; shear connector; coiled spring pins; finite element modeling; samverkansbro; samverkan; skjuvförbindare; spiralbult; finita element modellering; Infrastructure Engineering; Infrastrukturteknik
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APA (6th Edition):
Stahlin, S. (2019). Non-Linear FE-Analysis of a Composite Action Girder with Coiled Spring Pins as Shear Connectors. (Thesis). Luleå University of Technology. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74008
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Stahlin, Simon. “Non-Linear FE-Analysis of a Composite Action Girder with Coiled Spring Pins as Shear Connectors.” 2019. Thesis, Luleå University of Technology. Accessed December 06, 2019.
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74008.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Stahlin, Simon. “Non-Linear FE-Analysis of a Composite Action Girder with Coiled Spring Pins as Shear Connectors.” 2019. Web. 06 Dec 2019.
Vancouver:
Stahlin S. Non-Linear FE-Analysis of a Composite Action Girder with Coiled Spring Pins as Shear Connectors. [Internet] [Thesis]. Luleå University of Technology; 2019. [cited 2019 Dec 06].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74008.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Stahlin S. Non-Linear FE-Analysis of a Composite Action Girder with Coiled Spring Pins as Shear Connectors. [Thesis]. Luleå University of Technology; 2019. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74008
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Western Ontario
15.
Adawi, Aiham.
Shear and Peel Stresses at the Interface between Hollowcore Slabs and the Topping Concrete.
Degree: 2015, University of Western Ontario
URL: https://ir.lib.uwo.ca/etd/3265
► Hollowcore slabs are used in floors and roofs of residential, commercial, industrial and institutional buildings. They are precast/prestressed concrete elements produced using the extrusion process.…
(more)
▼ Hollowcore slabs are used in floors and roofs of residential, commercial, industrial and institutional buildings. They are precast/prestressed concrete elements produced using the extrusion process. Their surface finish can be “machine-cast” or “intentionally roughened”. A typical floor consists of a number of hollowcore slabs that are connected together. Prestressing causes hollowcore slabs to camber, which results in an uneven floor surface. A 50 mm topping concrete is commonly cast to level the floor surface. To avoid delamination, engineers require bonding agents to be applied on the hollowcore slab surface before pouring the topping concrete. The concrete topping can be used compositely with the hollowcore slabs to increase the floor’s load carrying capacity. However, North American design standards require intentional roughening of the hollowcore slab surface to consider such composite action. This requirement results in added cost that manufacturers are keen to avoid.
This thesis presents a comprehensive experimental program to assess the performance of composite hollowcore slabs with machine-cast and lightly-roughened surface finishes. Three types of tests were performed: pull-off, push-off and full-scale. They provided an overall understanding of the interfacial shear and peel behaviors at the interface between hollowcore slabs and the topping concrete. The tested slabs were found to sustain higher interfacial shear stresses than the limits set by the design standards and to provide adequate composite behavior up to failure. Linear analytical modeling in which closed-form solutions for differential equations governing the interfacial shear and peel stresses during the push-off tests was conducted. Two analytical methods were developed to estimate the shear and peel stresses during the full-scale tests utilizing the interface stiffness determined from the pushoff tests. Linear finite element analysis was performed to validate and compare the proposed methods.
To better understand the experimental results and to provide engineers with more accurate tools for estimating the interfacial stresses, nonlinear finite element analysis of the push-off and the full-scale tests were conducted. Interfacial shear and peel stiffness values associated with the tested slabs were also determined to assist design engineers in predicting failure modes of composite hollowcore slab.
Subjects/Keywords: hollowcore slabs; composite action; concrete topping; Finite Element Analysis; shear stresses; peel stresses; interface stiffness; Structural Engineering
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APA (6th Edition):
Adawi, A. (2015). Shear and Peel Stresses at the Interface between Hollowcore Slabs and the Topping Concrete. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/3265
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Adawi, Aiham. “Shear and Peel Stresses at the Interface between Hollowcore Slabs and the Topping Concrete.” 2015. Thesis, University of Western Ontario. Accessed December 06, 2019.
https://ir.lib.uwo.ca/etd/3265.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Adawi, Aiham. “Shear and Peel Stresses at the Interface between Hollowcore Slabs and the Topping Concrete.” 2015. Web. 06 Dec 2019.
Vancouver:
Adawi A. Shear and Peel Stresses at the Interface between Hollowcore Slabs and the Topping Concrete. [Internet] [Thesis]. University of Western Ontario; 2015. [cited 2019 Dec 06].
Available from: https://ir.lib.uwo.ca/etd/3265.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Adawi A. Shear and Peel Stresses at the Interface between Hollowcore Slabs and the Topping Concrete. [Thesis]. University of Western Ontario; 2015. Available from: https://ir.lib.uwo.ca/etd/3265
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Virginia Tech
16.
Menkulasi, Fatmir.
Development of a Composite Concrete Bridge System for Short-to-Medium-Span Bridges.
Degree: PhD, Civil and Environmental Engineering, 2014, Virginia Tech
URL: http://hdl.handle.net/10919/50413
► The inverted T-beam bridge system provides an accelerated bridge construction alternative for short-to-medium-span bridges. The system consists of adjacent precast inverted T-beams finished with a…
(more)
▼ The inverted T-beam bridge system provides an accelerated bridge construction alternative for short-to-medium-span bridges. The system consists of adjacent precast inverted T-beams finished with a cast-in-place concrete topping. The system offers enhanced performance against reflective cracking, and reduces the likelihood of cracking due to time dependent effects. The effects of transverse bending due to concentrated wheel loads are investigated with respect to reflective cracking. Transverse bending moment are quantified and compared to transverse moment capacities provided by a combination of various cross-sectional shapes and transverse connections. A design methodology for transverse bending is suggested. Tensile stresses created due to time dependent and temperature effects are quantified at the cross-sectional and structure level and strategies for how to alleviate these tensile stresses are proposed. Because differential shrinkage is believed to be one of the causes of deck cracking in
composite bridges, a study on shrinkage and creep properties of seven deck mixes is presented with the goal of identifying a mix whose long terms properties reduce the likelihood of deck cracking. The effects of differential shrinkage at a cross-sectional level are numerically demonstrated for a variety of
composite bridge systems and the resistance of the inverted T-beam system against time dependent effects is highlighted. End stresses in the end zones of such a uniquely shaped precast element are investigated analytically in the vertical and horizontal planes. Existing design methods are evaluated and strut-and-tie models, calibrated to match the results of 3-D finite element analyses, are proposed as alternatives to existing methods to aid designers in sizing reinforcing in the end zones.
Composite action between the precast beam and the cast-in-place topping is examined via a full scale test and the necessity of extended stirrups is explored. It is concluded that because of the large contact surface between the precast and cast-in-place elements, cohesion alone appears to provide the necessary horizontal shear strength to ensure full
composite action. Live load distribution factors are quantified analytically and by performing four live loads tests. It is concluded that AASHTO's method for cast-in-place slab span bridges can be conservatively used in design.
Advisors/Committee Members: Roberts-Wollmann, Carin L. (committeechair), Moen, Cristopher Dennis (committee member), Koutromanos, Ioannis (committee member), Cousins, Thomas E. (committee member).
Subjects/Keywords: Precast Inverted T-beams; Transverse Bending; Time Dependent Effects; Temperature effects; End Stresses; Composite Action; Live Load Distribution Factors
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APA (6th Edition):
Menkulasi, F. (2014). Development of a Composite Concrete Bridge System for Short-to-Medium-Span Bridges. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/50413
Chicago Manual of Style (16th Edition):
Menkulasi, Fatmir. “Development of a Composite Concrete Bridge System for Short-to-Medium-Span Bridges.” 2014. Doctoral Dissertation, Virginia Tech. Accessed December 06, 2019.
http://hdl.handle.net/10919/50413.
MLA Handbook (7th Edition):
Menkulasi, Fatmir. “Development of a Composite Concrete Bridge System for Short-to-Medium-Span Bridges.” 2014. Web. 06 Dec 2019.
Vancouver:
Menkulasi F. Development of a Composite Concrete Bridge System for Short-to-Medium-Span Bridges. [Internet] [Doctoral dissertation]. Virginia Tech; 2014. [cited 2019 Dec 06].
Available from: http://hdl.handle.net/10919/50413.
Council of Science Editors:
Menkulasi F. Development of a Composite Concrete Bridge System for Short-to-Medium-Span Bridges. [Doctoral Dissertation]. Virginia Tech; 2014. Available from: http://hdl.handle.net/10919/50413
Delft University of Technology
17.
Flink, P.J.
Composite Bridge Design: Analysis of Realizing Composite Action in an FRP-Steel Bridge:.
Degree: 2015, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:dd28e122-0fab-4730-8ad4-5c7c88d3a57d
► Many old moveable bridges have exceeded their technical lifetime. Replacement of the foundations is expensive and often unnecessary if the new bridge superstructure is lighter…
(more)
▼ Many old moveable bridges have exceeded their technical lifetime. Replacement of the foundations is expensive and often unnecessary if the new bridge superstructure is lighter than the old one. With stricter design guidelines being in effect nowadays, a conventional orthotropic steel deck design will end up being heavier. A lightweight fiber reinforced polymer deck supported by steel girders is proposed as a solution. In this thesis the potential mass reduction resulting from a lightweight FRP deck is analyzed.
Analyses are initially performed under the assumption that realizing
composite action will generate the best results. However, a finite element model of a bolted connection between an FRP deck and steel girders indicates that the strength of such a connection is too low to efficiently realize
composite action. An alternate solution where the deck is draped over the main girders with a thin FRP layer is considered and outperforms the
composite action design.
The design with FRP but without
composite action is compared with a standard orthotropic steel design. The FRP design weighs order of magnitude 10% less than its orthotropic counterpart. However, it is still significantly heavier than the original component in need of replacing.
Advisors/Committee Members: Van Almen, M., Abspoel, R., Rots, J., Kolstein, M.H..
Subjects/Keywords: Fiber Reinforced Polymer; FRP; Bolted Connection; Composite Action; Glass; Fiber; Fibre; Tsai Wu; Tsai-Wu; Julianabrug
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Manager
APA (6th Edition):
Flink, P. J. (2015). Composite Bridge Design: Analysis of Realizing Composite Action in an FRP-Steel Bridge:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:dd28e122-0fab-4730-8ad4-5c7c88d3a57d
Chicago Manual of Style (16th Edition):
Flink, P J. “Composite Bridge Design: Analysis of Realizing Composite Action in an FRP-Steel Bridge:.” 2015. Masters Thesis, Delft University of Technology. Accessed December 06, 2019.
http://resolver.tudelft.nl/uuid:dd28e122-0fab-4730-8ad4-5c7c88d3a57d.
MLA Handbook (7th Edition):
Flink, P J. “Composite Bridge Design: Analysis of Realizing Composite Action in an FRP-Steel Bridge:.” 2015. Web. 06 Dec 2019.
Vancouver:
Flink PJ. Composite Bridge Design: Analysis of Realizing Composite Action in an FRP-Steel Bridge:. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2019 Dec 06].
Available from: http://resolver.tudelft.nl/uuid:dd28e122-0fab-4730-8ad4-5c7c88d3a57d.
Council of Science Editors:
Flink PJ. Composite Bridge Design: Analysis of Realizing Composite Action in an FRP-Steel Bridge:. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:dd28e122-0fab-4730-8ad4-5c7c88d3a57d
18.
Olsson, David.
Achieving Composite Action in Existing Bridges : With post-installed shear connectors.
Degree: Environmental and Natural Resources Engineering, 2017, Luleå University of Technology
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-61492
► The increased amount of traffic combined with higher traffic loads leads to many existing bridges needing strengthening in the future to ensure their expected…
(more)
▼ The increased amount of traffic combined with higher traffic loads leads to many existing bridges needing strengthening in the future to ensure their expected lifespan. This means the bridge owners will be focusing more on strengthening projects and smart solutions will be crucial for preserving a healthy bridge stock. When strengthening existing non-composite bridges (with steel girder and concrete deck) one potential method is to achieve composite action by installing shear connectors. The post-installed shear connectors prevent slip between the steel girders and the concrete. The composite action will reduce bending stresses and deflection of the bridge, due to the increase in moment of inertia and relocation of the neutral axis. Different types of shear connectors can be used for achieving composite action and each type of connector has its own installation method. The biggest distinction between the methods is how the connectors gain access to the steel girder for installation and what technique is used when installing them. This thesis presents the theory behind composite action, the current methods used for achieving composite action on existing bridges and to what extent a bridge can be strengthened by composite action. The thesis also provides a status of the existing road bridge stock around the world. The four case studies examined in this thesis have used different post-installed shear connectors to manage different strengthening problems like weight restriction, fatigue life of shear connectors and a unique problem on the Pitsund Bridge where loud bangs appeared from the bridge when truck passed in the morning. For the case study on the Pitsund Bridge an interview was conducted that explains the entire procedure of the project, from the noise problem to how the installation of coiled spring pins was performed. The bridge over Lule River at Akkatsfallen consists of two steel girders and a concrete deck. This bridge is chosen as a real case study to determine to what extent a bridge can increase its capacity by achieving composite action. The calculations are performed in accordance with the Eurocodes on both non- and full-composite action and the result is compared to the other case studies.
Subjects/Keywords: Shear connector; Composite action; post-installed; strengthening; Pitsund Bridge; coiled spring pins; Skjuvförbindare; Samverkansbroar; förstärkningsarbete; Pitsundsbron; spiralbult
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APA ·
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Manager
APA (6th Edition):
Olsson, D. (2017). Achieving Composite Action in Existing Bridges : With post-installed shear connectors. (Thesis). Luleå University of Technology. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-61492
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Olsson, David. “Achieving Composite Action in Existing Bridges : With post-installed shear connectors.” 2017. Thesis, Luleå University of Technology. Accessed December 06, 2019.
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-61492.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Olsson, David. “Achieving Composite Action in Existing Bridges : With post-installed shear connectors.” 2017. Web. 06 Dec 2019.
Vancouver:
Olsson D. Achieving Composite Action in Existing Bridges : With post-installed shear connectors. [Internet] [Thesis]. Luleå University of Technology; 2017. [cited 2019 Dec 06].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-61492.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Olsson D. Achieving Composite Action in Existing Bridges : With post-installed shear connectors. [Thesis]. Luleå University of Technology; 2017. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-61492
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Maine
19.
Albraheemi, Mahmood J.
Evaluation of Non-Composite Steel Girder Bridges Using Field Load Testing and a Calibrated Finite-Element Model.
Degree: MSCE, Civil Engineering, 2018, University of Maine
URL: https://digitalcommons.library.umaine.edu/etd/2850
► This research focuses on understanding the behavior of five, non-composite, simple-span steel girder bridges using field load testing and calibrated finite element models. These…
(more)
▼ This research focuses on understanding the behavior of five, non-
composite, simple-span steel girder bridges using field load testing and calibrated finite element models. These bridges were tested during the summer of 2016. Strains and selected displacements were measured at multiple locations during the field load tests. 3D finite-element (FE) models were created to simulate the actual response of these bridges with a novel approach to calibrate these models was developed that captures the observed full and partial
composite action as well as rotational restraint of the girder ends. More accurate predictions of the bridges capacity were determined using field tests. Field tests confirmed the presence of a degree of
composite action and partial end restraint which effect the actual response of the bridge. Rating Factors were modified according to the provisions of AASHTO Manual for Bridge Evaluation (2010) using field data, and the average increase in moment rating factor was 51.6%. The results of the 3D FE models developed for each structure showed good agreement with the field data.
Advisors/Committee Members: William G. Davids, Roberto A. Lopez-Anido, Eric Landis.
Subjects/Keywords: Field test; Steel girder bridge; Composite action; Finite element modeling; Load rating; Civil Engineering; Structural Engineering
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APA (6th Edition):
Albraheemi, M. J. (2018). Evaluation of Non-Composite Steel Girder Bridges Using Field Load Testing and a Calibrated Finite-Element Model. (Masters Thesis). University of Maine. Retrieved from https://digitalcommons.library.umaine.edu/etd/2850
Chicago Manual of Style (16th Edition):
Albraheemi, Mahmood J. “Evaluation of Non-Composite Steel Girder Bridges Using Field Load Testing and a Calibrated Finite-Element Model.” 2018. Masters Thesis, University of Maine. Accessed December 06, 2019.
https://digitalcommons.library.umaine.edu/etd/2850.
MLA Handbook (7th Edition):
Albraheemi, Mahmood J. “Evaluation of Non-Composite Steel Girder Bridges Using Field Load Testing and a Calibrated Finite-Element Model.” 2018. Web. 06 Dec 2019.
Vancouver:
Albraheemi MJ. Evaluation of Non-Composite Steel Girder Bridges Using Field Load Testing and a Calibrated Finite-Element Model. [Internet] [Masters thesis]. University of Maine; 2018. [cited 2019 Dec 06].
Available from: https://digitalcommons.library.umaine.edu/etd/2850.
Council of Science Editors:
Albraheemi MJ. Evaluation of Non-Composite Steel Girder Bridges Using Field Load Testing and a Calibrated Finite-Element Model. [Masters Thesis]. University of Maine; 2018. Available from: https://digitalcommons.library.umaine.edu/etd/2850
Queens University
20.
Tomlinson, Douglas.
Behaviour of Partially Composite Precast Concrete Sandwich Panels under Flexural and Axial Loads
.
Degree: Civil Engineering, 2015, Queens University
URL: http://hdl.handle.net/1974/13745
► Precast concrete sandwich panels are commonly used on building exteriors. They are typically composed of two concrete wythes that surround rigid insulation. They are advantageous…
(more)
▼ Precast concrete sandwich panels are commonly used on building exteriors. They are typically composed of two concrete wythes that surround rigid insulation. They are advantageous as they provide both structural and thermal resistance. The structural response of sandwich panels is
heavily influenced by shear connectors that link the wythes together. This thesis presents a study on partially composite non-prestressed precast concrete wall panels. Nine flexure tests were conducted on a wall design incorporating ‘floating’ concrete studs and Glass Fibre Reinforced Polymer (GFRP) connectors. The studs encapsulate and stiffen the connectors, reducing shear deformations. Ultimate loads increased from 58 to 80% that of a composite section as the connectors’ reinforcement ratio increased from 2.6 to 9.8%. This design was optimized by reinforcing the studs and integrating them with the structural wythe; new connectors composed of angled steel or Basalt-FRP (BFRP) were used.
The load-slip response of the new connector design was studied through 38 double shear
push-through tests using various connector diameters and insertion angles. Larger connectors were stronger but more likely to pull out. Seven flexure tests were conducted on the new wall design reinforced with different combinations of steel and BFRP connectors and reinforcement. Composite action varied from 50 to 90% depending on connector and reinforcement material.
Following this study, the axial-bending interaction curves were established for the new wall design using both BFRP and steel connectors and reinforcement. Eight panels were axially loaded to predesignated loads then loaded in flexure to failure. A technique is presented to experimentally determine the effective centroid of partially composite sections. Beyond the
tension and compression-controlled failure regions of the interaction curve, a third region was observed in between, governed by connector failure.Theoretical models were developed for the bond-slip behaviour of the shear connection and to analyze the full panel’s flexural and axial response to determine the longitudinal shear force
transferred between wythes and account for partial composite behavior. The models were
validated against experiments and used to conduct a parametric study. Among several interesting findings, the study demonstrated how composite action increases with the slenderness of axially loaded panels.
Subjects/Keywords: Basalt FRP;
Interaction Diagram;
Sandwich Panel;
Parametric Study;
Push-through;
Shear Connectors;
Composite Action;
Flexural Response;
Shear Deformation;
Precast Concrete
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APA ·
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Manager
APA (6th Edition):
Tomlinson, D. (2015). Behaviour of Partially Composite Precast Concrete Sandwich Panels under Flexural and Axial Loads
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/13745
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Tomlinson, Douglas. “Behaviour of Partially Composite Precast Concrete Sandwich Panels under Flexural and Axial Loads
.” 2015. Thesis, Queens University. Accessed December 06, 2019.
http://hdl.handle.net/1974/13745.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Tomlinson, Douglas. “Behaviour of Partially Composite Precast Concrete Sandwich Panels under Flexural and Axial Loads
.” 2015. Web. 06 Dec 2019.
Vancouver:
Tomlinson D. Behaviour of Partially Composite Precast Concrete Sandwich Panels under Flexural and Axial Loads
. [Internet] [Thesis]. Queens University; 2015. [cited 2019 Dec 06].
Available from: http://hdl.handle.net/1974/13745.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Tomlinson D. Behaviour of Partially Composite Precast Concrete Sandwich Panels under Flexural and Axial Loads
. [Thesis]. Queens University; 2015. Available from: http://hdl.handle.net/1974/13745
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Brno University of Technology
21.
Poláček, Petr.
Administrativní budova
.
Degree: 2019, Brno University of Technology
URL: http://hdl.handle.net/11012/137523
► Diplomová práce se zabývá návrhem nosné konstrukce administrativní budovy. Budova je navržena pro oblast Svitavy. Půdorysné rozměry objektu jsou 54,0 x 54,0 m. Budova má…
(more)
▼ Diplomová práce se zabývá návrhem nosné konstrukce administrativní budovy. Budova je navržena pro oblast Svitavy. Půdorysné rozměry objektu jsou 54,0 x 54,0 m. Budova má 10 podlaží. Nosná konstrukce je navržena ve dvou variantách. Ve variantě A je osová vzdálenost sloupů 6 m, ve variantě B je to 9 m. Sloupy a stropní konstrukce jsou spřažené ocelobetonové. Součástí práce je výkresová dokumentace.; Master's thesis is follow up with the disign of the load bearing structure of a office building. The building is designed for the area of Svitavy. The plan's dimension are 54,0 x 54,0 m. The objects has 10 floors. Load-bearing structure is disigned in two variants. In the variant A is centre to centre spacing 6m, in variant the B it si 9m. The coulomns and floor structure are
composite steel-concrete. Thesis includes drawings.
Advisors/Committee Members: Pilgr, Milan (advisor).
Subjects/Keywords: administrativní budova;
ocelová konstrukce;
spřažený sloup;
spřažený nosník;
spřažení;
trapézový plech;
ztužidlo;
šroubový spoj;
svar;
office building;
steel structure;
composite column;
composite beam;
composite action;
trapezoidal sheet;
bracing;
bolted conection;
weld
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APA (6th Edition):
Poláček, P. (2019). Administrativní budova
. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/137523
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Poláček, Petr. “Administrativní budova
.” 2019. Thesis, Brno University of Technology. Accessed December 06, 2019.
http://hdl.handle.net/11012/137523.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Poláček, Petr. “Administrativní budova
.” 2019. Web. 06 Dec 2019.
Vancouver:
Poláček P. Administrativní budova
. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2019 Dec 06].
Available from: http://hdl.handle.net/11012/137523.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Poláček P. Administrativní budova
. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/137523
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
22.
Dias, Hércules Bezerra.
Síntese e caracterização de nanopartículas de ZnO e TiO2 dopadas com Ag para aplicação em materiais dentários.
Degree: Mestrado, Desenvolvimento, Caracterização e Aplicação de Materiais, 2014, University of São Paulo
URL: http://www.teses.usp.br/teses/disponiveis/18/18158/tde-14012015-151052/
;
► Resinas compostas comumente utilizadas em restaurações, anteriores e posteriores, resultam em maior acúmulo de biofilme bacteriano do que outros materiais restauradores, o que contribui para…
(more)
▼ Resinas compostas comumente utilizadas em restaurações, anteriores e posteriores, resultam em maior acúmulo de biofilme bacteriano do que outros materiais restauradores, o que contribui para a formação de cáries secundárias e levam à falha das restaurações. Métodos para inibir a formação do biofilme sobre materiais restauradores dentais vêm sendo estudados há décadas e a inserção de nanopartículas (NPs) representa o que há de mais avançado nos estudos de formulação de materiais dentários antibacterianos. A literatura recente relata que resinas compostas contendo NPs de óxidos metálicos, tais como óxido de zinco (ZnO) e dióxido de titânio (TiO2), têm demonstrado capacidade antibacteriana, contribuindo para o controle do biofilme oral cariogênico. Por outro lado, a inserção dessas NPs pode alterar a cor e as propriedades mecânicas para níveis clínicos inaceitáveis e até mesmo dificultar o processo de fotopolimerização, se inseridas em grandes quantidades. Uma vez que o efeito antibacteriano e as propriedades de resinas compostas modificadas com NPs de óxidos de metais não foram amplamente estudados, esse estudo visou a compreensão destes aspectos, a partir da síntese e caracterização de nanopartículas de ZnO e TiO2 dopados ou não com Ag, inclusão em uma resina composta comercial e análise de propriedades físicas, mecânicas e biológicas do compósito modificado. As sínteses foram realizadas por diversas rotas químicas, resultando em NPs de TiO2 de alta área superficial e NPs de ZnO com morfologia tridimensional, incluindo nanoplates e nanorods que formam estruturas em formato de flores. A modificação da resina composta com NPs de TiO2.Ag alterou drasticamente a resistência à compressão do material, enquanto a adição de NPs de ZnO.Ag manteve a resistência em valores muito próximos ao da resina não modificada. A cor da resina composta sofreu grande alteração quando imergida em solução de café, especialmente após a adição de NPs de ZnO.Ag. A atividade antibacteriana, contra Streptococcus mutans da resina modificada foi considerada significativa, principalmente após a adição de 1 e 2% de NPs de TiO2. A análise dessas propriedades foi importante para o avanço das pesquisas que visam o desenvolvimento de uma resina composta antibacteriana que proporcione estética e propriedades mecânicas adequadas para a confecção de restaurações.
Composite resins used in restorations, anterior and posterior, resulting in greater accumulation of bacterial biofilm than other restorative materials, which contributes to the formation of secondary caries and lead to failure of restorations. Methods for inhibiting biofilm formation on dental restorative materials have been studied for decades and the insertion of nanoparticles (NPs) represents the most advanced in formulation studies of antibacterial dental materials. Recent literature reports that composites containing nanoparticles of metal oxides such as zinc oxide (ZnO) and titanium dioxide (TiO2) have demonstrated antibacterial ability, contributing to the control of oral cariogenic…
Advisors/Committee Members: Hernandes, Antônio Carlos.
Subjects/Keywords: Composite resin; Dióxido de titânio; Nanotechnology; Nanotecnologia; Óxido de zinco; Products with antimicrobial action; Produtos com ação antimicrobiana; Resina composta; Titanium dioxide; Zinc oxide
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APA (6th Edition):
Dias, H. B. (2014). Síntese e caracterização de nanopartículas de ZnO e TiO2 dopadas com Ag para aplicação em materiais dentários. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/18/18158/tde-14012015-151052/ ;
Chicago Manual of Style (16th Edition):
Dias, Hércules Bezerra. “Síntese e caracterização de nanopartículas de ZnO e TiO2 dopadas com Ag para aplicação em materiais dentários.” 2014. Masters Thesis, University of São Paulo. Accessed December 06, 2019.
http://www.teses.usp.br/teses/disponiveis/18/18158/tde-14012015-151052/ ;.
MLA Handbook (7th Edition):
Dias, Hércules Bezerra. “Síntese e caracterização de nanopartículas de ZnO e TiO2 dopadas com Ag para aplicação em materiais dentários.” 2014. Web. 06 Dec 2019.
Vancouver:
Dias HB. Síntese e caracterização de nanopartículas de ZnO e TiO2 dopadas com Ag para aplicação em materiais dentários. [Internet] [Masters thesis]. University of São Paulo; 2014. [cited 2019 Dec 06].
Available from: http://www.teses.usp.br/teses/disponiveis/18/18158/tde-14012015-151052/ ;.
Council of Science Editors:
Dias HB. Síntese e caracterização de nanopartículas de ZnO e TiO2 dopadas com Ag para aplicação em materiais dentários. [Masters Thesis]. University of São Paulo; 2014. Available from: http://www.teses.usp.br/teses/disponiveis/18/18158/tde-14012015-151052/ ;
Université de Sherbrooke
23.
Ali, Ahmed Mohamed Ahmed.
Bond performance between concrete and the FRP tube under cyclic loading; and design of new beam-column connection for concrete-filled FRP tubes
.
Degree: 2018, Université de Sherbrooke
URL: http://hdl.handle.net/11143/14198
► Au cours des deux dernières décennies, les travaux de recherche rapportés sur les tubes de polymères renforcés de fibres remplis de bétons (TPRFB) ont clairement…
(more)
▼ Au cours des deux dernières décennies, les travaux de recherche rapportés sur les tubes de polymères renforcés de fibres remplis de bétons (TPRFB) ont clairement démontré une meilleure performance par rapport aux éléments (poutre ou colonne) en béton armé conventionnel : en termes de résistance, ductilité et durabilité dans des environnements corrosifs. Plusieurs facteurs expliquent cette performance supérieure : le tube en (PRF) fournit un confinement parfait pour le béton, particulièrement lorsqu’il est sollicité en traction, fournit également des renforts dans les deux directions longitudinale et transversale de l’élément, et sert de coffrage léger et permanent. La résistance à la compression du noyau de béton est considérablement augmentée et la ductilité/déformabilité des membrures se trouve grandement améliorée. Tous ces avantages confèrent la possibilité aux (TPRFB) d'être utilisés dans de nombreuses applications telles que les pieux marins, les poutres et les colonnes de ponts, les poteaux et les structures de panneaux suspendus.
Plusieurs recherches ont été menées pour étudier et évaluer le comportement des éléments structuraux (TPRFB) sous différents types de chargement : charges latérales monotones ou cycliques avec ou sans charges axiales. Néanmoins, très peu de recherches ont été réalisées pour étudier l'effet de l’adhérence entre le noyau de béton et le tube PRF sur le comportement à la flexion d’un élément TPRFB. L'effet de taille du tube en PRF doit également être examiné.
Par ailleurs, une question que la présente thèse a tenté de répondre est : comment attacher une poutre (TPRFB) à une colonne (TPRFB)? À la lumière de la revue de littérature et aux mieux de mes connaissances, il n’existe aucune étude traitant des connexions poutre/colonne pour TPRFB.
Cette thèse est composée de deux parties. La première partie porte sur l’évaluation de la performance de l’adhérence entre le tube en PRF et le béton. Des prototypes grandeur nature de colonnes TPRFB ont été testés sous charges latérales cycliques. Une approche novatrice pour évaluer la performance de l’adhérence entre le tube de PRF et le noyau de béton en utilisant des jauges de déformation intégrées dans le béton a été développée et utilisée. Cette technique a permis d’étudier l'
action composite entre le tube en FRP et le noyau de béton sur le comportement en flexion des colonnes TPRFB. En outre, la contribution de l'amélioration de l’adhérence à l’aide d’enrobage de sable est également étudiée, et est quantifiée. Quatre colonnes circulaires, grandeur nature, ont été testées dans la partie I sous charge cyclique latérale pour étudier l’adhérence entre le tube en PRF et le noyau de béton. L’effet d’un revêtement de sable (Deux colonnes avec revêtement de sable versus deux colonnes sans revêtement de sable), ainsi que l'effet de la taille des tubes (deux colonnes de 305 mm de diamètre versus deux autres de 406 mm de diamètre) sur le comportement en flexion des membres TPRFB ont été étudiés.
La deuxième partie a porté sur le développement et la…
Advisors/Committee Members: Masmoudi, Radhouane (advisor).
Subjects/Keywords: Polymère renforcé de fibres (PRF);
Tubes en PRF;
Charge cyclique;
Adhérence;
Action composite;
Retrait du béton;
Revêtement de sable;
Connexion TPRFB;
Fiber-reinforced polymer;
Flexural behavior;
Concrete-filled FRP tubes
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APA ·
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MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ali, A. M. A. (2018). Bond performance between concrete and the FRP tube under cyclic loading; and design of new beam-column connection for concrete-filled FRP tubes
. (Doctoral Dissertation). Université de Sherbrooke. Retrieved from http://hdl.handle.net/11143/14198
Chicago Manual of Style (16th Edition):
Ali, Ahmed Mohamed Ahmed. “Bond performance between concrete and the FRP tube under cyclic loading; and design of new beam-column connection for concrete-filled FRP tubes
.” 2018. Doctoral Dissertation, Université de Sherbrooke. Accessed December 06, 2019.
http://hdl.handle.net/11143/14198.
MLA Handbook (7th Edition):
Ali, Ahmed Mohamed Ahmed. “Bond performance between concrete and the FRP tube under cyclic loading; and design of new beam-column connection for concrete-filled FRP tubes
.” 2018. Web. 06 Dec 2019.
Vancouver:
Ali AMA. Bond performance between concrete and the FRP tube under cyclic loading; and design of new beam-column connection for concrete-filled FRP tubes
. [Internet] [Doctoral dissertation]. Université de Sherbrooke; 2018. [cited 2019 Dec 06].
Available from: http://hdl.handle.net/11143/14198.
Council of Science Editors:
Ali AMA. Bond performance between concrete and the FRP tube under cyclic loading; and design of new beam-column connection for concrete-filled FRP tubes
. [Doctoral Dissertation]. Université de Sherbrooke; 2018. Available from: http://hdl.handle.net/11143/14198
University of Cincinnati
24.
KANTHA SAMY, MADHAN KUMAR.
FIELD TEST AND ANALYSIS OF TWO PRESTRESSED CONCRETE BRIDGES
AFTER DECK REPLACEMENT WITH FRP PANELS.
Degree: MS, Engineering : Civil Engineering, 2007, University of Cincinnati
URL: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1187271654
► Bridges B-0071 and B-0171 in Hamilton County, Ohio have been in service for about fifty years. They are short span bridges with prestressed concrete girders.…
(more)
▼ Bridges B-0071 and B-0171 in Hamilton County, Ohio
have been in service for about fifty years. They are short span
bridges with prestressed concrete girders. Until late 2001, they
had conventional reinforced concrete decks, which have been
replaced with fiber reinforced polymer (FRP) decks. Two girders in
bridge B-0171 were replaced with new prestressed girders. These
bridges are significant as there are few instances of FRP decks on
concrete girders. The Hamilton County Engineers Office contracted
with the Civil Engineering Department at the University of
Cincinnati to perform load testing on the bridges. Information
gained from this research will seek to confirm the safety of the
new technology, evaluate construction and design techniques with
reference to the FRP deck, and determine overall performance of the
bridge to provide understanding of the system. The two short span
prestressed concrete bridges with fiber reinforced polymer decks
were subjected to four sets of nondestructive truckload testing.
Strain gauges were placed along the height of the girder
cross-section, and longitudinally and transversely across the
bottom of the deck. Displacement transducers were placed to measure
overall girder displacement, relative deck displacement, deck panel
separation, and deck-girder connection separation. A
three-dimensional finite element analysis model was created to
replicate the performance of each bridge. The two new prestressed
girders in bridge B-0171 strengthened the bridge considerably and
increased its load carrying capacity. But the old prestressed
girders in bridge B-0071 and bridge B-0171 did not show any sign of
deterioration. The four sets of test data collected over a two-year
period show that the age effect on structural behavior is very
small for both the bridges. The deck had very little influence on
the distribution of loads in the structure for these bridges. Due
to low deck stiffness and incomplete connectivity, the FRP deck did
little to strengthen the girders. The long term monitoring of the
deck result complied with the short term testing as reported by
Eder8. The finite element model closely matched with the structural
components of the original bridge. The new improved model is a
better representation as it was calibrated with four sets of field
data collected over a period of two years. The field test data from
both tests shows that the girders are simply supported on the
abutment. But the girders in the model are designed as fixed end
beams to have a reasonable value for the modulus of concrete used
in the model. In reality it can be assumed that the support
condition is between fixed and simply supported. It was also
demonstrated that the deck had very little influence on the
distribution of loads in the structure for these bridges. The
majority of the load transfer between girders was most likely due
to the diaphragms. The Impact Factor based on one set of
experimental results was 1.217. However, for analysis the LRFD
value of 1.33 was used. The Load Rating Factor for bridge B-0071
was…
Advisors/Committee Members: Baseheart, Dr. Michael (Advisor).
Subjects/Keywords: Engineering, Civil; Bridges; FRP; Prestressed Concrete; Concrete; Load Rating Factor; Nondestructive Load testing; Finite Element Analysis; Distribution Factors; Semi&8211; integral Diaphragms; Impact Factor; Composite Action
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APA (6th Edition):
KANTHA SAMY, M. K. (2007). FIELD TEST AND ANALYSIS OF TWO PRESTRESSED CONCRETE BRIDGES
AFTER DECK REPLACEMENT WITH FRP PANELS. (Masters Thesis). University of Cincinnati. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ucin1187271654
Chicago Manual of Style (16th Edition):
KANTHA SAMY, MADHAN KUMAR. “FIELD TEST AND ANALYSIS OF TWO PRESTRESSED CONCRETE BRIDGES
AFTER DECK REPLACEMENT WITH FRP PANELS.” 2007. Masters Thesis, University of Cincinnati. Accessed December 06, 2019.
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1187271654.
MLA Handbook (7th Edition):
KANTHA SAMY, MADHAN KUMAR. “FIELD TEST AND ANALYSIS OF TWO PRESTRESSED CONCRETE BRIDGES
AFTER DECK REPLACEMENT WITH FRP PANELS.” 2007. Web. 06 Dec 2019.
Vancouver:
KANTHA SAMY MK. FIELD TEST AND ANALYSIS OF TWO PRESTRESSED CONCRETE BRIDGES
AFTER DECK REPLACEMENT WITH FRP PANELS. [Internet] [Masters thesis]. University of Cincinnati; 2007. [cited 2019 Dec 06].
Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1187271654.
Council of Science Editors:
KANTHA SAMY MK. FIELD TEST AND ANALYSIS OF TWO PRESTRESSED CONCRETE BRIDGES
AFTER DECK REPLACEMENT WITH FRP PANELS. [Masters Thesis]. University of Cincinnati; 2007. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1187271654
25.
Batrel, Charlène.
Nouvelle méthode d'exploration fonctionnelle du nerf auditif : A new approach to probe the activity of auditory nerve fibers.
Degree: Docteur es, Biologie Santé, 2014, Université Montpellier I
URL: http://www.theses.fr/2014MON13520
► Contexte: La réponse synchrone des fibres auditives, évaluée à partir de l'onde I des potentiels d'action évoqués auditifs (PEA), ou à partir du potentiel d'action…
(more)
▼ Contexte: La réponse synchrone des fibres auditives, évaluée à partir de l'onde I des potentiels d'action évoqués auditifs (PEA), ou à partir du potentiel d'action composite (PAC) du nerf auditif, est l'élément clé du dépistage des neuropathies auditives. De récentes études ont toutefois montré que le seuil et l'amplitude de cette réponse pouvaient être absolument normaux malgré une perte importante de fibres du nerf auditif. Dans ce travail de thèse, nous proposons une nouvelle méthode d'exploration fonctionnelle, potentiellement applicable à l'homme, rendant mieux compte du nombre et de l'intégrité des fibres du nerf auditif. Cette méthode a été évaluée à l'aide d'un modèle pharmacologique de neuropathie physiologiquement pertinent.Matériel et méthodes: Chez des gerbilles, une perte sélective de fibres auditives a été induite par application d'une faible concentration d'ouabaïne dans la niche de la fenêtre ronde de la cochlée. Cette neuropathie a ensuite été caractérisée par des comptages de synapses (immunohistochimie/imagerie confocale 3D) et l'enregistrement de l'activité unitaire de fibres du nerf auditif. Les PAC et l'activité soutenue du nerf ont été enregistrés 6 jours après l'application d'ouabaïne, à l'aide d'une électrode de recueil disposée dans la niche de la fenêtre ronde. Résultats: L'application d'ouabaïne induit une perte spécifique des fibres à basse activité spontanée (AS<0,5 potentiel d'action/sec) comme observé au cours du vieillissement et après une surexposition sonore. La disparition de cette population de fibres est indétectable à l'aide du PAC car leur réponse unitaire est à la fois retardée et désynchronisée. Par contre, l'amplitude de la réponse soutenue du nerf se révèle être un bien meilleur indicateur de la perte des fibres à basse activité spontanée. Pour aller plus loin, nous avons mis au point une méthode qui permet d'observer l'activité synchrone et soutenue du nerf auditif dans une même réponse. Cette approche rend compte des trois mécanismes de fusion vésiculaire (libération rapide, lente et soutenue) de la première synapse auditive.Conclusion: L'analyse de la réponse soutenue du nerf auditif est une approche fiable pour déterminer le nombre et le phénotype fonctionnel des fibres qui composent le nerf auditif. Cette méthode, applicable à l'homme, devrait améliorer le dépistage des neuropathies, avec une meilleure différenciation des atteintes d'origine synaptique et/ou neuronale.Mots clés: Cochlée, nerf auditif, potentiel d'action composite, activité soutenue du nerf auditif, enregistrement unitaires, ouabaïne, neuropathie
Background: The synchronous activation of the auditory nerve fibers (ANFs), is commonly studied through the compound action potential (CAP), or the auditory brainstem responses (ABR), to probe deafness in experimental and clinical settings. Recent studies have shown that substantial ANF loss can coexist with normal hearing threshold, and even unchanged CAP amplitude, making the detection of auditory neuropathies difficult. In this study, we took advantage of…
Advisors/Committee Members: Puel, Jean-Luc (thesis director), Bourien, Jérôme (thesis director).
Subjects/Keywords: Nerf auditif; Exploration fonctionnelle; Potentiel d'action composite; Enregistrements unitaires; Neuropathie; Ouabaïne; Auditory nerve; Functional exploration; Compound action potential; Single fiber recording; Neuropathy; Ouabain; 612
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APA ·
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MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Batrel, C. (2014). Nouvelle méthode d'exploration fonctionnelle du nerf auditif : A new approach to probe the activity of auditory nerve fibers. (Doctoral Dissertation). Université Montpellier I. Retrieved from http://www.theses.fr/2014MON13520
Chicago Manual of Style (16th Edition):
Batrel, Charlène. “Nouvelle méthode d'exploration fonctionnelle du nerf auditif : A new approach to probe the activity of auditory nerve fibers.” 2014. Doctoral Dissertation, Université Montpellier I. Accessed December 06, 2019.
http://www.theses.fr/2014MON13520.
MLA Handbook (7th Edition):
Batrel, Charlène. “Nouvelle méthode d'exploration fonctionnelle du nerf auditif : A new approach to probe the activity of auditory nerve fibers.” 2014. Web. 06 Dec 2019.
Vancouver:
Batrel C. Nouvelle méthode d'exploration fonctionnelle du nerf auditif : A new approach to probe the activity of auditory nerve fibers. [Internet] [Doctoral dissertation]. Université Montpellier I; 2014. [cited 2019 Dec 06].
Available from: http://www.theses.fr/2014MON13520.
Council of Science Editors:
Batrel C. Nouvelle méthode d'exploration fonctionnelle du nerf auditif : A new approach to probe the activity of auditory nerve fibers. [Doctoral Dissertation]. Université Montpellier I; 2014. Available from: http://www.theses.fr/2014MON13520
Queensland University of Technology
26.
Jamtsho, Lungten.
Performance load testing and structural adequacy evaluation of road bridge decks.
Degree: 2011, Queensland University of Technology
URL: https://eprints.qut.edu.au/46822/
► Many ageing road bridges, particularly timber bridges, require urgent improvement due to the demand imposed by the recent version of the Australian bridge loading code,…
(more)
▼ Many ageing road bridges, particularly timber bridges, require urgent improvement due to the demand imposed by the recent version of the Australian bridge loading code, AS 5100. As traffic volume plays a key role in the decision of budget allocations for bridge refurbishment/ replacement, many bridges in low volume traffic network remain in poor condition with axle load and/ or speed restrictions, thus disadvantaging many rural communities. This thesis examines an economical and environmentally sensible option of incorporating disused flat rail wagons (FRW) in the construction of bridges in low volume, high axle load road network. The constructability, economy and structural adequacy of the FRW road bridge is reported in the thesis with particular focus of a demonstration bridge commissioned in regional Queensland. The demonstration bridge comprises of a reinforced concrete slab (RCS) pavement resting on two FRWs with custom designed connection brackets at regular intervals along the span of the bridge. The FRW-RC bridge deck assembly is supported on elastomeric rubber pads resting on the abutment. As this type of bridge replacement technology is new and its structural design is not covered in the design standards, the in-service structural performance of the FRW bridge subjected to the high axle loadings prescribed in AS 5100 is examined through performance load testing. Both the static and the moving load tests are carried out using a fully laden commonly available three-axle tandem truck. The bridge deck is extensively strain gauged and displacement at several key locations is measured using linear variable displacement transducers (LVDTs). A high speed camera is used in the performance test and the digital image data are analysed using proprietary software to capture the locations of the wheel positions on the bridge span accurately. The wheel location is thus synchronised with the displacement and strain time series to infer the structural response of the FRW bridge. Field test data are used to calibrate a grillage model, developed for further analysis of the FRW bridge to various sets of high axle loads stipulated in the bridge design standard. Bridge behaviour predicted by the grillage model has exemplified that the live load stresses of the FRW bridge is significantly lower than the yield strength of steel and the deflections are well below the serviceability limit state set out in AS 5100. Based on the results reported in this thesis, it is concluded that the disused FRWs are competent to resist high axle loading prescribed in AS 5100 and are a viable alternative structural solution of bridge deck in the context of the low volume road networks.
Subjects/Keywords: disused flat rail wagons; low volume traffic bridges; bridge decks; performance load testing; grillage method; composite action; serviceability limit states; ultimate limit state high axle loads; structural adequacy
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APA (6th Edition):
Jamtsho, L. (2011). Performance load testing and structural adequacy evaluation of road bridge decks. (Thesis). Queensland University of Technology. Retrieved from https://eprints.qut.edu.au/46822/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Jamtsho, Lungten. “Performance load testing and structural adequacy evaluation of road bridge decks.” 2011. Thesis, Queensland University of Technology. Accessed December 06, 2019.
https://eprints.qut.edu.au/46822/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Jamtsho, Lungten. “Performance load testing and structural adequacy evaluation of road bridge decks.” 2011. Web. 06 Dec 2019.
Vancouver:
Jamtsho L. Performance load testing and structural adequacy evaluation of road bridge decks. [Internet] [Thesis]. Queensland University of Technology; 2011. [cited 2019 Dec 06].
Available from: https://eprints.qut.edu.au/46822/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Jamtsho L. Performance load testing and structural adequacy evaluation of road bridge decks. [Thesis]. Queensland University of Technology; 2011. Available from: https://eprints.qut.edu.au/46822/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Queens University
27.
Dutta, Debrup.
Behaviour of Concrete Sandwich Wall Panels in Flexure Using a Novel GFRP Shear Connector
.
Degree: Civil Engineering, Queens University
URL: http://hdl.handle.net/1974/24934
► This thesis examines the structural effectiveness of a new concrete sandwich panel with a shear connector made of glass fibre reinforced polymer (GFRP) pultruded channel…
(more)
▼ This thesis examines the structural effectiveness of a new concrete sandwich panel with a shear connector made of glass fibre reinforced polymer (GFRP) pultruded channel sections intended to enhance composite action and flexural rigidity while minimizing thermal bridging. The flanges of the channel section are embedded in either wythe. Five half-scale panels (610x280x3050 mm) were tested in four-point bending, varying the connector configuration and type as well as the wythe reinforcement ratio. The connectors investigated were a continuous GFRP channel, a discrete GFRP channel consisting of multiple segments spaced apart and a control conventional steel truss. Ancillary push-off single shear tests were conducted on 500 mm long wall segments to examine GFRP shear strength and bond strength by varying boundary conditions. The panels with continuous and discrete GFRP channels achieved 2.8 and 1.3 times, respectively, the ultimate strength of that with a steel truss. The continuous GFRP channel contributed 59% of the total flexural capacity of the wall. As the wythe steel reinforcement ratio increased from 0.17 to 0.68% the ultimate load of panels with continuous GFRP channels increased by 33%. Failure modes were compressive flange crushing for the panels with continuous GFRP channel, web shear for the panel with discrete channel, and rupture of bottom wythe reinforcement for the panel with steel truss.
An analytical model was developed in RESPONSE-2000 to evaluate the degree of composite action achieved by the GFRP shear connector. Both peak loads for theoretical fully composite and non-composite sections increased by 23%, as reinforcement ratio increased from 0.17 to 0.68%. Peak loads for specimens with discrete connector or truss connector were both only 45% and 20% of their fully composite and non-composite counterparts with a continuous connector. Specimens with continuous GFRP channel as shear connector exhibited higher degree of composite action (average of 38%) than the truss connector (32%). The GFRP-concrete bond strength was tested experimentally and was 0.28 MPa and the longitudinal shear strength of the channel was tested and found to be 39 MPa.
Subjects/Keywords: Sandwich Panels;
Composite Action;
Shear Connector;
Concrete Wythe;
Thermal Bridging;
Pultruded Sections
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APA (6th Edition):
Dutta, D. (n.d.). Behaviour of Concrete Sandwich Wall Panels in Flexure Using a Novel GFRP Shear Connector
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/24934
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Dutta, Debrup. “Behaviour of Concrete Sandwich Wall Panels in Flexure Using a Novel GFRP Shear Connector
.” Thesis, Queens University. Accessed December 06, 2019.
http://hdl.handle.net/1974/24934.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Dutta, Debrup. “Behaviour of Concrete Sandwich Wall Panels in Flexure Using a Novel GFRP Shear Connector
.” Web. 06 Dec 2019.
Note: this citation may be lacking information needed for this citation format:
No year of publication.
Vancouver:
Dutta D. Behaviour of Concrete Sandwich Wall Panels in Flexure Using a Novel GFRP Shear Connector
. [Internet] [Thesis]. Queens University; [cited 2019 Dec 06].
Available from: http://hdl.handle.net/1974/24934.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.
Council of Science Editors:
Dutta D. Behaviour of Concrete Sandwich Wall Panels in Flexure Using a Novel GFRP Shear Connector
. [Thesis]. Queens University; Available from: http://hdl.handle.net/1974/24934
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.
Delft University of Technology
28.
Kolstein, M.H.
Fatigue classification of welded joints in orthotropic steel bridge decks.
Degree: 2007, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b
;
urn:NBN:nl:ui:24-uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b
;
urn:NBN:nl:ui:24-uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b
;
http://resolver.tudelft.nl/uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b
► This dissertation presents the research into fatigue classifications of welded joints in orthotropic steel bridge decks. These classifications are needed to calculate the fatigue life…
(more)
▼ This dissertation presents the research into fatigue classifications of welded joints in orthotropic steel bridge decks. These classifications are needed to calculate the fatigue life of these joints and should be included in the design codes. For years bridge design was mainly based on static loading. Due to the development of modern light weight steel structures and extremely increasing traffic loading fatigue design becomes more and more important. A review of all available data on orthotropic decks and related fatigue test results is included. The majority of the full scale fatigue testing on orthotropic decks has been carried out by members of a European Working Group. The statistical analysis procedure used to derive the weld classes for Eurocode 3 is used to place all of the main joints in the appropriate class, and to rank different designs of each joint. In addition, recommendations are made for both good joint design and those to be avoided. The
composite action between the steel deck plate and the surfacing on orthotropic decks is an important aspect of the performance, in particular because the stifness of the combined unit helps to reduce strains in the welded structure as well as in the surfacing, which results in a longer lifetime. Numerical as well as experimental analysis of the stress reduction is reported. Furthermore this dissertation highlights site measurements on existing bridges and shows the development of different wearing course systems.
Advisors/Committee Members: Bijlaard, F.S.K..
Subjects/Keywords: steel bridges; orthotropic decks; fatigue classification; welded joints; composite action; deck surfacing
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APA (6th Edition):
Kolstein, M. H. (2007). Fatigue classification of welded joints in orthotropic steel bridge decks. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b ; urn:NBN:nl:ui:24-uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b ; urn:NBN:nl:ui:24-uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b ; http://resolver.tudelft.nl/uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b
Chicago Manual of Style (16th Edition):
Kolstein, M H. “Fatigue classification of welded joints in orthotropic steel bridge decks.” 2007. Doctoral Dissertation, Delft University of Technology. Accessed December 06, 2019.
http://resolver.tudelft.nl/uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b ; urn:NBN:nl:ui:24-uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b ; urn:NBN:nl:ui:24-uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b ; http://resolver.tudelft.nl/uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b.
MLA Handbook (7th Edition):
Kolstein, M H. “Fatigue classification of welded joints in orthotropic steel bridge decks.” 2007. Web. 06 Dec 2019.
Vancouver:
Kolstein MH. Fatigue classification of welded joints in orthotropic steel bridge decks. [Internet] [Doctoral dissertation]. Delft University of Technology; 2007. [cited 2019 Dec 06].
Available from: http://resolver.tudelft.nl/uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b ; urn:NBN:nl:ui:24-uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b ; urn:NBN:nl:ui:24-uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b ; http://resolver.tudelft.nl/uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b.
Council of Science Editors:
Kolstein MH. Fatigue classification of welded joints in orthotropic steel bridge decks. [Doctoral Dissertation]. Delft University of Technology; 2007. Available from: http://resolver.tudelft.nl/uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b ; urn:NBN:nl:ui:24-uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b ; urn:NBN:nl:ui:24-uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b ; http://resolver.tudelft.nl/uuid:a7bb8daa-930b-405d-af60-8fbfb7c4119b
29.
Bihina, Gisèle.
Analyse du comportement au feu des planchers mixtes acier-béton constitutés de poutres cellulaires : Analysis of the fire behaviour of steel and concrete composite floors made of cellular beams.
Degree: Docteur es, Génie Civil, 2011, Université Blaise-Pascale, Clermont-Ferrand II
URL: http://www.theses.fr/2011CLF22143
► En situation d’incendie, la dégradation des propriétés mécaniques des matériaux constitutifs d’une structure peut sensiblement en modifier le comportement global. Ainsi, lors d’essais au feu…
(more)
▼ En situation d’incendie, la dégradation des propriétés mécaniques des matériaux constitutifs d’une structure peut sensiblement en modifier le comportement global. Ainsi, lors d’essais au feu ou de sinistres réels, des flèches significatives sont observées sans ruine globale du plancher. Ceci traduit l’activation d’un mécanisme basé sur une borne supérieure de plasticité en grands déplacements et appelé effet membrane. Ainsi, malgré la perte des propriétés du béton, de l’acier d’armatures et de l’acier de construction des poutres connectées à une dalle en béton armé ou mixte acier-béton, la capacité portante de cette dalle se définit comme une fonction croissante de sa flèche. En pratique, le comportement complexe des planchers mixtes acier-béton peut être appréhendé par des modèles dits simplifiés ou avancés, suivant le niveau de précision souhaité. La méthode analytique FRACOF permet par exemple d’étudier un plancher global à température élevée, en se basant sur les modèles de comportement simplifiés des matériaux, acier et béton, définis dans les Eurocodes. Par cette méthode, la capacité portante d’une dalle peut alors être déterminée en tenant compte des profilés métalliques connectés à la dalle, et de l’activation d’un effet membrane en grands déplacements. Cette méthode analytique a été validée par une comparaison à des modèles éléments finis, ainsi qu’à des résultats d’essais au feu en grandeur nature. Elle est applicable à des profilés en acier laminé à chaud avec des portées pouvant atteindre 20 m. Or le franchissement de ces portées nécessite des sections de poutre à forte inertie, afin de limiter les flèches du plancher en service. Pour limiter la quantité d’acier que requerraient de telles poutres, le recours à des poutres cellulaires est une solution pratique et esthétique. Un modèle élément finis de poutres cellulaires en acier seul et mixtes est proposé dans le cadre de la thèse de doctorat. Le comportement thermo-mécanique des poutres cellulaires en acier seul est modélisé sous le code Cast3M. Les poutres mixtes sont modélisées en combinant un calcul de transfert thermique sous Cast3M et une analyse mécanique sous ANSYS. Les poutres en acier et la dalle en béton ou mixte sont représentées par des éléments de type coque. Les connecteurs sont représentés par des éléments de type poutre. Ce modèle tridimensionnel tient par ailleurs compte des non-linéarités matérielle et géométrique. Il est confronté à des résultats d’essais à températures normale et élevée. La validation du modèle est suivie d’une comparaison à une méthode analytique existante pour en vérifier la précision et le degré de conservatisme. Les poutres cellulaires sont ensuite étudiées en tant que partie intégrante de planchers mixtes acier-béton sous incendie. Un essai en grandeur nature sous feu réel met en évidence l’activation d’un effet membrane en présence de poutres cellulaires non-protégées, sans ruine du plancher. Les résultats de l’essai sont utilisés pour calibrer un modèle élément fini tridimensionnel. La calibration est effectuée…
Advisors/Committee Members: Bouchaïr, Abdelhamid (thesis director).
Subjects/Keywords: Incendie; Eurocodes; Élément de structure mixte acier–béton; Poutre cellulaire; Dalle mixte; Effet membrane; Méthode FRACOF; Éléments finis; Fire; Eurocodes; Composite steel and concrete structural member; Cellular beam; Composite floor slab; Membrane action; FRACOF method; Finite element modelling
Record Details
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Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bihina, G. (2011). Analyse du comportement au feu des planchers mixtes acier-béton constitutés de poutres cellulaires : Analysis of the fire behaviour of steel and concrete composite floors made of cellular beams. (Doctoral Dissertation). Université Blaise-Pascale, Clermont-Ferrand II. Retrieved from http://www.theses.fr/2011CLF22143
Chicago Manual of Style (16th Edition):
Bihina, Gisèle. “Analyse du comportement au feu des planchers mixtes acier-béton constitutés de poutres cellulaires : Analysis of the fire behaviour of steel and concrete composite floors made of cellular beams.” 2011. Doctoral Dissertation, Université Blaise-Pascale, Clermont-Ferrand II. Accessed December 06, 2019.
http://www.theses.fr/2011CLF22143.
MLA Handbook (7th Edition):
Bihina, Gisèle. “Analyse du comportement au feu des planchers mixtes acier-béton constitutés de poutres cellulaires : Analysis of the fire behaviour of steel and concrete composite floors made of cellular beams.” 2011. Web. 06 Dec 2019.
Vancouver:
Bihina G. Analyse du comportement au feu des planchers mixtes acier-béton constitutés de poutres cellulaires : Analysis of the fire behaviour of steel and concrete composite floors made of cellular beams. [Internet] [Doctoral dissertation]. Université Blaise-Pascale, Clermont-Ferrand II; 2011. [cited 2019 Dec 06].
Available from: http://www.theses.fr/2011CLF22143.
Council of Science Editors:
Bihina G. Analyse du comportement au feu des planchers mixtes acier-béton constitutés de poutres cellulaires : Analysis of the fire behaviour of steel and concrete composite floors made of cellular beams. [Doctoral Dissertation]. Université Blaise-Pascale, Clermont-Ferrand II; 2011. Available from: http://www.theses.fr/2011CLF22143
Delft University of Technology
30.
Oosterom, A.C.J.
Composite - Hotel Design:.
Degree: 2012, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:e6aa3f09-8fb0-4ff6-b36a-c14b0f9ccde1
Experimental hotel design based on the specific properties of FRP materials.
Advisors/Committee Members: Engels, J.F., Klein, T..Subjects/Keywords: FRP; composite; laminated sandwich; composite action; structural profile; Fiber Reinforce Plastic; hotel; plastic architecture; modular; dual graduation; FRP facade
Record Details
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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APA (6th Edition):
Oosterom, A. C. J. (2012). Composite - Hotel Design:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:e6aa3f09-8fb0-4ff6-b36a-c14b0f9ccde1
Chicago Manual of Style (16th Edition):
Oosterom, A C J. “Composite - Hotel Design:.” 2012. Masters Thesis, Delft University of Technology. Accessed December 06, 2019.
http://resolver.tudelft.nl/uuid:e6aa3f09-8fb0-4ff6-b36a-c14b0f9ccde1.
MLA Handbook (7th Edition):
Oosterom, A C J. “Composite - Hotel Design:.” 2012. Web. 06 Dec 2019.
Vancouver:
Oosterom ACJ. Composite - Hotel Design:. [Internet] [Masters thesis]. Delft University of Technology; 2012. [cited 2019 Dec 06].
Available from: http://resolver.tudelft.nl/uuid:e6aa3f09-8fb0-4ff6-b36a-c14b0f9ccde1.
Council of Science Editors:
Oosterom ACJ. Composite - Hotel Design:. [Masters Thesis]. Delft University of Technology; 2012. Available from: http://resolver.tudelft.nl/uuid:e6aa3f09-8fb0-4ff6-b36a-c14b0f9ccde1
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Open Access Theses and Dissertations