subject:(Prestressed concrete girders)

Utah State University

1. Higgs, Arek Tilmann. Shear and Flexural Capacity of High Strength Prestressed Concrete Bridge Girders.

Degree: MS, Civil and Environmental Engineering, 2013, Utah State University

URL: https://digitalcommons.usu.edu/etd/1757

► The section of highway over the 400 South roadway in Orem, Utah is made up of two separate three span bridges. The bridges were… (more)

Subjects/Keywords: bridge; concrete; girders; prestressed; Engineering

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APA (6^th Edition):

Higgs, A. T. (2013). Shear and Flexural Capacity of High Strength Prestressed Concrete Bridge Girders. (Masters Thesis). Utah State University. Retrieved from https://digitalcommons.usu.edu/etd/1757

Chicago Manual of Style (16^th Edition):

Higgs, Arek Tilmann. “Shear and Flexural Capacity of High Strength Prestressed Concrete Bridge Girders.” 2013. Masters Thesis, Utah State University. Accessed February 27, 2021. https://digitalcommons.usu.edu/etd/1757.

MLA Handbook (7^th Edition):

Higgs, Arek Tilmann. “Shear and Flexural Capacity of High Strength Prestressed Concrete Bridge Girders.” 2013. Web. 27 Feb 2021.

Vancouver:

Higgs AT. Shear and Flexural Capacity of High Strength Prestressed Concrete Bridge Girders. [Internet] [Masters thesis]. Utah State University; 2013. [cited 2021 Feb 27]. Available from: https://digitalcommons.usu.edu/etd/1757.

Council of Science Editors:

Higgs AT. Shear and Flexural Capacity of High Strength Prestressed Concrete Bridge Girders. [Masters Thesis]. Utah State University; 2013. Available from: https://digitalcommons.usu.edu/etd/1757

Montana State University

2. Vira, Khimji N. Energy dissipation in prestressed concrete beams.

Degree: MS, College of Engineering, 1964, Montana State University

URL: https://scholarworks.montana.edu/xmlui/handle/1/6265

Subjects/Keywords: Girders.; Prestressed concrete.

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APA (6^th Edition):

Vira, K. N. (1964). Energy dissipation in prestressed concrete beams. (Masters Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/6265

Chicago Manual of Style (16^th Edition):

Vira, Khimji N. “Energy dissipation in prestressed concrete beams.” 1964. Masters Thesis, Montana State University. Accessed February 27, 2021. https://scholarworks.montana.edu/xmlui/handle/1/6265.

MLA Handbook (7^th Edition):

Vira, Khimji N. “Energy dissipation in prestressed concrete beams.” 1964. Web. 27 Feb 2021.

Vancouver:

Vira KN. Energy dissipation in prestressed concrete beams. [Internet] [Masters thesis]. Montana State University; 1964. [cited 2021 Feb 27]. Available from: https://scholarworks.montana.edu/xmlui/handle/1/6265.

Council of Science Editors:

Vira KN. Energy dissipation in prestressed concrete beams. [Masters Thesis]. Montana State University; 1964. Available from: https://scholarworks.montana.edu/xmlui/handle/1/6265

University of Hong Kong

3. Chung, Hung-wan. Ultimate strength and deformation of rectangular prestressed concrete beams subjected to combined bending and shear.

Degree: 1963, University of Hong Kong

URL: http://hdl.handle.net/10722/36985

Subjects/Keywords: Prestressed concrete.; Girders.

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APA (6^th Edition):

Chung, H. (1963). Ultimate strength and deformation of rectangular prestressed concrete beams subjected to combined bending and shear. (Thesis). University of Hong Kong. Retrieved from http://hdl.handle.net/10722/36985

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chung, Hung-wan. “Ultimate strength and deformation of rectangular prestressed concrete beams subjected to combined bending and shear.” 1963. Thesis, University of Hong Kong. Accessed February 27, 2021. http://hdl.handle.net/10722/36985.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chung, Hung-wan. “Ultimate strength and deformation of rectangular prestressed concrete beams subjected to combined bending and shear.” 1963. Web. 27 Feb 2021.

Vancouver:

Chung H. Ultimate strength and deformation of rectangular prestressed concrete beams subjected to combined bending and shear. [Internet] [Thesis]. University of Hong Kong; 1963. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10722/36985.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chung H. Ultimate strength and deformation of rectangular prestressed concrete beams subjected to combined bending and shear. [Thesis]. University of Hong Kong; 1963. Available from: http://hdl.handle.net/10722/36985

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Kansas State University

4. Kramer, Kimberly Waggle. Load-deflection response of prestressed concrete beams strengthened with FRP: a comprehensive perspective.

Degree: PhD, Department of Civil Engineering, 2020, Kansas State University

URL: http://hdl.handle.net/2097/40918

► Currently, degradation of pretensioned prestressed reinforced concrete (PRC) bridge structures is a serious problem in the United States of America. Since 2000, the use of… (more)

▼ Currently, degradation of pretensioned prestressed reinforced concrete (PRC) bridge structures is a serious problem in the United States of America. Since 2000, the use of fiber-reinforced polymer (FRP) is well studied and has become an accepted method to rehabilitate concrete bridges. Design engineers use the ACI 440.2R-17 to determine strength requirements. Additionally, evaluating the deflection of strengthened PRC members is required during the restoration/strengthening design. ACI 440.2R-17 relies on ACI 318-19 for deflection calculations and limits prestressing from yielding under service load levels. This dissertation examines the application of the effective moment of inertia equation given in ACI 318-19 for the determination of deflection after cracking of PRC beams externally strengthened with carbon fiber reinforced polymers (CFRP). The results reported in this dissertation deal with the behavior of partially prestressed concrete beams strengthened with high strength composites. The three major parts discussed are experimental work, analytical investigations, and a parametric study. Experimental results obtained by other researchers were used to verify the results of the analytical procedures developed. The parametric study provides information on the moment-curvature and load-deflection behavior of strengthened pretensioned prestressed concrete flexural members externally strengthened with fiber-reinforced polymers that can be obtained for various concrete strengths, reinforcement ratios, and varying cross-sections. An analytical model was developed to predict the flexural rigidity of pretensioned, partially prestressed concrete beams that are externally strengthened with high strength composites. CFRP sheets were used for the derivation of equations. The proposed model is based on principles of mechanics and the sectional equations available for the analysis of partially prestressed beams. The model is applicable to the full range of prestressed concrete members covering partially and fully prestressed concrete, straight or harped strands, with or without supplemental mild-reinforcing steel, and varying loading conditions. The procedure can be used to generate the entire load-deflection response and through performing the moment-curvature analysis and estimation of stresses and strains in addition to computing the effective flexural stiffness of the strengthened prestressed member. Comparisons of experimental and analytical results show that deflection can be predicted with good accuracy using the developed modified effective moment of inertia equation. The parametric investigation was conducted on the effect of the basic variables namely, cross-section, concrete compressive strength, prestressing steel ratio, amount of carbon fibers, modulus of elasticity of prestressing steel-to-modulus of elasticity of CFRP ratio, modulus of elasticity of carbon fiber composite, spans, and shear span-to-span ratios. The goal of this investigation was conducted to understand the effect of CFRP strengthening to the… Advisors/Committee Members: Hayder A. Rasheed.

Subjects/Keywords: FRP; Prestressed Concrete Girders; Deflection; Moment-Curvature

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APA (6^th Edition):

Kramer, K. W. (2020). Load-deflection response of prestressed concrete beams strengthened with FRP: a comprehensive perspective. (Doctoral Dissertation). Kansas State University. Retrieved from http://hdl.handle.net/2097/40918

Chicago Manual of Style (16^th Edition):

Kramer, Kimberly Waggle. “Load-deflection response of prestressed concrete beams strengthened with FRP: a comprehensive perspective.” 2020. Doctoral Dissertation, Kansas State University. Accessed February 27, 2021. http://hdl.handle.net/2097/40918.

MLA Handbook (7^th Edition):

Kramer, Kimberly Waggle. “Load-deflection response of prestressed concrete beams strengthened with FRP: a comprehensive perspective.” 2020. Web. 27 Feb 2021.

Vancouver:

Kramer KW. Load-deflection response of prestressed concrete beams strengthened with FRP: a comprehensive perspective. [Internet] [Doctoral dissertation]. Kansas State University; 2020. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2097/40918.

Council of Science Editors:

Kramer KW. Load-deflection response of prestressed concrete beams strengthened with FRP: a comprehensive perspective. [Doctoral Dissertation]. Kansas State University; 2020. Available from: http://hdl.handle.net/2097/40918

Texas A&M University

5. Terzioglu, Tevfik. Behavior and Design of Spread Prestressed Concrete Slab Beam Bridges.

Degree: PhD, Civil Engineering, 2015, Texas A&M University

URL: http://hdl.handle.net/1969.1/156387

► The Texas Department of Transportation (TxDOT) uses precast prestressed concrete slab beam bridges in a side-by-side configuration for short span bridges in low clearance areas.… (more)

▼ The Texas Department of Transportation (TxDOT) uses precast prestressed concrete slab beam bridges in a side-by-side configuration for short span bridges in low clearance areas. A new bridge type called a spread slab beam bridge was recently developed using the same concept as spread box beam bridges in which the beams are spaced apart with precast panel stay-in-place forms between beams and a cast-in-place concrete deck. This research presents an evaluation of spread slab beam bridges in terms of design, constructability and performance. The main objective of this project is to develop appropriate design guidelines for this alternative spread slab beam bridge system. Forty-four bridge geometries are designed using standard TxDOT slab beam types to determine the feasible design space. One of the most aggressive geometries with widely spaced slab beams is constructed as a full-scale test bridge and tested under static and dynamic vehicular loads to evaluate constructability and structural performance. Load distribution behavior is investigated during field testing and the measured data is utilized to validate modeling techniques including orthotropic plate analysis, grillage analysis and finite element method based on research findings. It is concluded that spread slab beam bridges that utilize precast concrete panels with a cast-in-place concrete deck provide a viable construction method for short-span bridges. For the tested bridge, the desired performance is achieved for in-service loading. Field testing shows that beam live load deflections are within the design limits, with no significant cracking or reduction in the overall stiffness of the bridge observed. Experimental load distribution factors (LDFs) are evaluated using alignments that provided the most adverse loading cases. Bridge responses under dynamic loads are larger compared to the static counterparts. The American Association of State Highway Transportation Officials (AASHTO) Load and Resistance Factor Design (2012) LDF equations for spread box beams are reviewed for applicability to spread slab beams and shown to range from being unconservative to very conservative when applied to spread slab beam bridges. Unique LDF expressions are developed for spread slab beam bridges to provide an appropriate estimate of load sharing for beam design. Advisors/Committee Members: Hueste, Mary Beth (advisor), Mander, John (advisor), Fry, Gary (committee member), Haque, Mohammed (committee member).

Subjects/Keywords: Precast Prestressed Concrete; Bridge Girders; Spread Slab Beams; Load Distribution Factors

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APA (6^th Edition):

Terzioglu, T. (2015). Behavior and Design of Spread Prestressed Concrete Slab Beam Bridges. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/156387

Chicago Manual of Style (16^th Edition):

Terzioglu, Tevfik. “Behavior and Design of Spread Prestressed Concrete Slab Beam Bridges.” 2015. Doctoral Dissertation, Texas A&M University. Accessed February 27, 2021. http://hdl.handle.net/1969.1/156387.

MLA Handbook (7^th Edition):

Terzioglu, Tevfik. “Behavior and Design of Spread Prestressed Concrete Slab Beam Bridges.” 2015. Web. 27 Feb 2021.

Vancouver:

Terzioglu T. Behavior and Design of Spread Prestressed Concrete Slab Beam Bridges. [Internet] [Doctoral dissertation]. Texas A&M University; 2015. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1969.1/156387.

Council of Science Editors:

Terzioglu T. Behavior and Design of Spread Prestressed Concrete Slab Beam Bridges. [Doctoral Dissertation]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/156387

University of Illinois – Urbana-Champaign

6. Pozolo, Andrew M. Transfer and Development Lengths of Steel Strands in Full-Scale Prestressed Self-Consolidating Concrete Bridge Girders.

Degree: MS, 0106, 2011, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/18443

► Self-consolidating concrete (SCC) is a workable yet stable concrete which flows easily and consolidates under its own weight. Its unique properties can substantially reduce the… (more)

Subjects/Keywords: Self-consolidating concrete; prestressed concrete; seven-wire strand; pullout; transfer length; development length; hollow box girders; I-girders; finite element analysis

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APA (6^th Edition):

Pozolo, A. M. (2011). Transfer and Development Lengths of Steel Strands in Full-Scale Prestressed Self-Consolidating Concrete Bridge Girders. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/18443

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pozolo, Andrew M. “Transfer and Development Lengths of Steel Strands in Full-Scale Prestressed Self-Consolidating Concrete Bridge Girders.” 2011. Thesis, University of Illinois – Urbana-Champaign. Accessed February 27, 2021. http://hdl.handle.net/2142/18443.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pozolo, Andrew M. “Transfer and Development Lengths of Steel Strands in Full-Scale Prestressed Self-Consolidating Concrete Bridge Girders.” 2011. Web. 27 Feb 2021.

Vancouver:

Pozolo AM. Transfer and Development Lengths of Steel Strands in Full-Scale Prestressed Self-Consolidating Concrete Bridge Girders. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2011. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2142/18443.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pozolo AM. Transfer and Development Lengths of Steel Strands in Full-Scale Prestressed Self-Consolidating Concrete Bridge Girders. [Thesis]. University of Illinois – Urbana-Champaign; 2011. Available from: http://hdl.handle.net/2142/18443

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Florida

7. Branson, Dan Earle, 1928-. Time-dependent effects in non-composite and composite prestressed concrete beams.

Degree: 1960, University of Florida

URL: https://ufdc.ufl.edu/AA00064573

Subjects/Keywords: Prestressed concrete; Girders; Structural Engineering thesis Ph. D; Girders. ( fast ); Prestressed concrete. ( fast )

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APA (6^th Edition):

Branson, Dan Earle, 1. (1960). Time-dependent effects in non-composite and composite prestressed concrete beams. (Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/AA00064573

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Branson, Dan Earle, 1928-. “Time-dependent effects in non-composite and composite prestressed concrete beams.” 1960. Thesis, University of Florida. Accessed February 27, 2021. https://ufdc.ufl.edu/AA00064573.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Branson, Dan Earle, 1928-. “Time-dependent effects in non-composite and composite prestressed concrete beams.” 1960. Web. 27 Feb 2021.

Vancouver:

Branson, Dan Earle 1. Time-dependent effects in non-composite and composite prestressed concrete beams. [Internet] [Thesis]. University of Florida; 1960. [cited 2021 Feb 27]. Available from: https://ufdc.ufl.edu/AA00064573.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Branson, Dan Earle 1. Time-dependent effects in non-composite and composite prestressed concrete beams. [Thesis]. University of Florida; 1960. Available from: https://ufdc.ufl.edu/AA00064573

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Houston

8. Labib, Emad. Shear Behavior and Design of High Strength Concrete Prestressed Bridge Girders.

Degree: PhD, Civil Engineering, 2012, University of Houston

URL: http://hdl.handle.net/10657/828

► A simple semi-empirical set of equations was developed at the University of Houston (UH) to predict the shear strength of PC I-girders with normal-strength concrete.… (more)

▼ A simple semi-empirical set of equations was developed at the University of Houston (UH) to predict the shear strength of PC I-girders with normal-strength concrete. The UH-developed equation is a function of concrete strength, web area, shear span to effective depth ratio, and percentage of transverse steel. This research intends to validate or modify the UH-developed equation for (1) high-strength concrete and (2) different sizes of PC girders and studying the possibility of premature failure due to local failure in end zone. Ten modified Tx28 PC girders, derived by scaling down an existing TxDOT cross section, were tested in this study for the first objective. The girders were divided into three groups (Groups A, C and F) based on the concrete strength. Each group of the PC girders was tested with different shear span to effective depth ratio. The validity of the proposed UH-developed equations was ascertained using the experimental results. It was found able to predict accurately the ultimate shear strength of PC girders with concrete strength up to 117 MPa (17,000 psi) with enough ductility. Six PC girders of Tx-series with three different sizes were tested for the second objective. The girders were divided into three groups (Groups D, E and G) based on the girder depth. The experimental results ensured the validity of the UH-developed equations for PC girders with different sizes. Also, the experimental data showed that the PC girders of the new Tx-series can reach the maximum shear capacity without a shear-bond failure. The results of testing the 10 modified Tx-28 girders were used to validate a finite element program developed at UH, Simulation of Concrete Structures (SCS), for PC girders with different concrete strength. Analytical results presented in this dissertation proved the validity of SCS to predict the behavior of PC girders with different concrete strength up to 117 MPa (17,000 psi). Advisors/Committee Members: Mo, Yi-Lung (advisor), Hsu, Thomas T. C. (committee member), Belarbi, Abdeldjelil (committee member), Ayoub, Ashraf S. (committee member), Mansour, Mohamad (committee member), Song, Gangbing (committee member).

Subjects/Keywords: High strength concrete; Prestressed I-Girders; Shear; Bond; Large scale tests; Civil engineering

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APA (6^th Edition):

Labib, E. (2012). Shear Behavior and Design of High Strength Concrete Prestressed Bridge Girders. (Doctoral Dissertation). University of Houston. Retrieved from http://hdl.handle.net/10657/828

Chicago Manual of Style (16^th Edition):

Labib, Emad. “Shear Behavior and Design of High Strength Concrete Prestressed Bridge Girders.” 2012. Doctoral Dissertation, University of Houston. Accessed February 27, 2021. http://hdl.handle.net/10657/828.

MLA Handbook (7^th Edition):

Labib, Emad. “Shear Behavior and Design of High Strength Concrete Prestressed Bridge Girders.” 2012. Web. 27 Feb 2021.

Vancouver:

Labib E. Shear Behavior and Design of High Strength Concrete Prestressed Bridge Girders. [Internet] [Doctoral dissertation]. University of Houston; 2012. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10657/828.

Council of Science Editors:

Labib E. Shear Behavior and Design of High Strength Concrete Prestressed Bridge Girders. [Doctoral Dissertation]. University of Houston; 2012. Available from: http://hdl.handle.net/10657/828

University of Houston

9. Kapadia, Aadit. Shear Behavior of Prestressed Concrete Girders and Structural Health monitoring using Fiber Bragg Grating Sensors.

Degree: MSin Civil Engineering, Civil Engineering, 2013, University of Houston

URL: http://hdl.handle.net/10657/1088

► This research deals with six Prestressed girders that were tested to observe the shear behavior and investigate the failure mode. Three of the girders had… (more)

Subjects/Keywords: Concrete; Beams; Bridge; Girders; Shear; Prestressed; FBG; Bond slip; SHM; Civil engineering

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APA (6^th Edition):

Kapadia, A. (2013). Shear Behavior of Prestressed Concrete Girders and Structural Health monitoring using Fiber Bragg Grating Sensors. (Masters Thesis). University of Houston. Retrieved from http://hdl.handle.net/10657/1088

Chicago Manual of Style (16^th Edition):

Kapadia, Aadit. “Shear Behavior of Prestressed Concrete Girders and Structural Health monitoring using Fiber Bragg Grating Sensors.” 2013. Masters Thesis, University of Houston. Accessed February 27, 2021. http://hdl.handle.net/10657/1088.

MLA Handbook (7^th Edition):

Kapadia, Aadit. “Shear Behavior of Prestressed Concrete Girders and Structural Health monitoring using Fiber Bragg Grating Sensors.” 2013. Web. 27 Feb 2021.

Vancouver:

Kapadia A. Shear Behavior of Prestressed Concrete Girders and Structural Health monitoring using Fiber Bragg Grating Sensors. [Internet] [Masters thesis]. University of Houston; 2013. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10657/1088.

Council of Science Editors:

Kapadia A. Shear Behavior of Prestressed Concrete Girders and Structural Health monitoring using Fiber Bragg Grating Sensors. [Masters Thesis]. University of Houston; 2013. Available from: http://hdl.handle.net/10657/1088

Georgia Tech

10. Canfield, Scott Robinson. Full Scale Testing of Prestressed, High Performance Concrete, Bridge Girders.

Degree: MS, Civil and Environmental Engineering, 2005, Georgia Tech

URL: http://hdl.handle.net/1853/7131

► The objective of this research was to evaluate the current design specifications for use on prestressed, High Performance Concrete (HPC) bridge girders. An AASHTO Type… (more)

Subjects/Keywords: Bridge girders; Prestressed; High performance concrete

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APA (6^th Edition):

Canfield, S. R. (2005). Full Scale Testing of Prestressed, High Performance Concrete, Bridge Girders. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/7131

Chicago Manual of Style (16^th Edition):

Canfield, Scott Robinson. “Full Scale Testing of Prestressed, High Performance Concrete, Bridge Girders.” 2005. Masters Thesis, Georgia Tech. Accessed February 27, 2021. http://hdl.handle.net/1853/7131.

MLA Handbook (7^th Edition):

Canfield, Scott Robinson. “Full Scale Testing of Prestressed, High Performance Concrete, Bridge Girders.” 2005. Web. 27 Feb 2021.

Vancouver:

Canfield SR. Full Scale Testing of Prestressed, High Performance Concrete, Bridge Girders. [Internet] [Masters thesis]. Georgia Tech; 2005. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1853/7131.

Council of Science Editors:

Canfield SR. Full Scale Testing of Prestressed, High Performance Concrete, Bridge Girders. [Masters Thesis]. Georgia Tech; 2005. Available from: http://hdl.handle.net/1853/7131

Louisiana State University

11. Chebole, Veeravenkata S Murthy. Long-term continuity moment assessment in prestressed concrete girder bridges.

Degree: MSCE, Civil and Environmental Engineering, 2011, Louisiana State University

URL: etd-04052011-195831 ; https://digitalcommons.lsu.edu/gradschool_theses/1598

► Use of new materials, developing new structural systems, and improving construction details while designing bridges with longer spans has been a continuous challenge for bridge… (more)

Subjects/Keywords: Continuous Bridges; Prestressed Concrete; Restraint Moment; Secondary Moment in Bridge Girders; Structural Benefits from Continuity

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APA (6^th Edition):

Chebole, V. S. M. (2011). Long-term continuity moment assessment in prestressed concrete girder bridges. (Masters Thesis). Louisiana State University. Retrieved from etd-04052011-195831 ; https://digitalcommons.lsu.edu/gradschool_theses/1598

Chicago Manual of Style (16^th Edition):

Chebole, Veeravenkata S Murthy. “Long-term continuity moment assessment in prestressed concrete girder bridges.” 2011. Masters Thesis, Louisiana State University. Accessed February 27, 2021. etd-04052011-195831 ; https://digitalcommons.lsu.edu/gradschool_theses/1598.

MLA Handbook (7^th Edition):

Chebole, Veeravenkata S Murthy. “Long-term continuity moment assessment in prestressed concrete girder bridges.” 2011. Web. 27 Feb 2021.

Vancouver:

Chebole VSM. Long-term continuity moment assessment in prestressed concrete girder bridges. [Internet] [Masters thesis]. Louisiana State University; 2011. [cited 2021 Feb 27]. Available from: etd-04052011-195831 ; https://digitalcommons.lsu.edu/gradschool_theses/1598.

Council of Science Editors:

Chebole VSM. Long-term continuity moment assessment in prestressed concrete girder bridges. [Masters Thesis]. Louisiana State University; 2011. Available from: etd-04052011-195831 ; https://digitalcommons.lsu.edu/gradschool_theses/1598

Virginia Tech

12. Al Rufaydah, Abdullah Saeed. Shear Strength Assessment of Corrosion-Damaged Prestressed Concrete Girders.

Degree: MS, Civil Engineering, 2021, Virginia Tech

URL: http://hdl.handle.net/10919/101848

► Many bridges in the United States were built using longitudinal members, called girders, made of prestressed concrete. In prestressed concrete, because concrete cannot resist high… (more)

Subjects/Keywords: Corrosion Damage; Shear strength; Prestressed concrete girders; Bridges; Forensic engineering; Residual shear strength

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APA (6^th Edition):

Al Rufaydah, A. S. (2021). Shear Strength Assessment of Corrosion-Damaged Prestressed Concrete Girders. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/101848

Chicago Manual of Style (16^th Edition):

Al Rufaydah, Abdullah Saeed. “Shear Strength Assessment of Corrosion-Damaged Prestressed Concrete Girders.” 2021. Masters Thesis, Virginia Tech. Accessed February 27, 2021. http://hdl.handle.net/10919/101848.

MLA Handbook (7^th Edition):

Al Rufaydah, Abdullah Saeed. “Shear Strength Assessment of Corrosion-Damaged Prestressed Concrete Girders.” 2021. Web. 27 Feb 2021.

Vancouver:

Al Rufaydah AS. Shear Strength Assessment of Corrosion-Damaged Prestressed Concrete Girders. [Internet] [Masters thesis]. Virginia Tech; 2021. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10919/101848.

Council of Science Editors:

Al Rufaydah AS. Shear Strength Assessment of Corrosion-Damaged Prestressed Concrete Girders. [Masters Thesis]. Virginia Tech; 2021. Available from: http://hdl.handle.net/10919/101848

Georgia Tech

13. Haines, Robert Anthony. Shear Testing of Prestressed High Performance Concrete Bridge Girders.

Degree: MS, Civil and Environmental Engineering, 2005, Georgia Tech

URL: http://hdl.handle.net/1853/7120

► This report details the design and construction of an AASHTO Type IV prestressed girder and a PCI BT-56 prestressed girder. It also details the shear… (more)

Subjects/Keywords: Shear; Concrete; Prestressed; Girders; High performance; Shear (Mechanics) Testing; Prestressed concrete Testing; Prestressed concrete beams Testing; Girders Testing; Bridges, Concrete Testing

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APA (6^th Edition):

Haines, R. A. (2005). Shear Testing of Prestressed High Performance Concrete Bridge Girders. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/7120

Chicago Manual of Style (16^th Edition):

Haines, Robert Anthony. “Shear Testing of Prestressed High Performance Concrete Bridge Girders.” 2005. Masters Thesis, Georgia Tech. Accessed February 27, 2021. http://hdl.handle.net/1853/7120.

MLA Handbook (7^th Edition):

Haines, Robert Anthony. “Shear Testing of Prestressed High Performance Concrete Bridge Girders.” 2005. Web. 27 Feb 2021.

Vancouver:

Haines RA. Shear Testing of Prestressed High Performance Concrete Bridge Girders. [Internet] [Masters thesis]. Georgia Tech; 2005. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1853/7120.

Council of Science Editors:

Haines RA. Shear Testing of Prestressed High Performance Concrete Bridge Girders. [Masters Thesis]. Georgia Tech; 2005. Available from: http://hdl.handle.net/1853/7120

Virginia Tech

14. Nassar, Adil J. Investigation of Transfer Length, Development Length, Flexural Strength and Prestress Loss Trend in Fully Bonded High Strength Lightweight Prestressed Girders.

Degree: MS, Civil Engineering, 2002, Virginia Tech

URL: http://hdl.handle.net/10919/32941

► Encouraged by the performance of high performance normal weight composite girders, Virginia Department of Transportation has sought to exploit the use of high strength lightweight… (more)

▼ Encouraged by the performance of high performance normal weight composite girders, Virginia Department of Transportation has sought to exploit the use of high strength lightweight composite concrete (HSLWC) girders to achieve economies brought about by the reduction of dead loads in bridges. Transfer Length measurements conducted on two AASHTO Type IV HSLWC prestressed girders, resulted in an average transfer length of 17 inches, well below the AASHTO and ACI guidance. Two girders composed of HSLWC AASHTO Type II girders and a 48" x 8" normal weight 4000-psi concrete deck were produced. The HSLWC Type II girders were cast of concretes with a compressive strength of 6380 psi and unit weight of 114 pcf. Full scale testing of the girders was conducted to evaluate development length and flexural strength in HSLWC composite girders. Embedment lengths of five, six and eight feet were evaluated. Tests indicated a development length of about 72 inches, marginally below the ACI and AASHTO stipulation. Four of eight strands in the girders showed general bond failure nevertheless, the tested girders exceeded their theoretical flexural capacity by 24 to 30 percent. A third composite girder was cast of a high strength normal weight concrete (HSNWC) Type II girder, and topped with a 48" x 8" normal weight 4000-psi concrete deck. This girder was intended as a control specimen to contrast its test results with the HSLWC composite girders. The targeted compressive strength of both the HSLWC and HSNWC AASHTO beams was 8000 psi. The compressive strength of the HSNWC mixture, however, was about 8990 psi compared to 6380 psi for the HSLWC mixture. Prestress losses in HSLWC AASHTO Type IV girders monitored over a nine-month period were found to be less than those calculated using the ACI and PCI models. Furthermore, the ACI model indicated that the effective prestressess retained in the HSLWC girders in 30 year's time are greater than 50% of the specified tensile strength of the strands. Advisors/Committee Members: Cousins, Thomas E. (committeechair), Roberts-Wollmann, Carin L. (committee member), Weyers, Richard E. (committee member), Gomez, Jose P. (committee member).

Subjects/Keywords: Ligthweight Concrete Prestressed Girders; High Performance Lightweight Concrete Prestressed; Transfer Length; Development Length

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APA (6^th Edition):

Nassar, A. J. (2002). Investigation of Transfer Length, Development Length, Flexural Strength and Prestress Loss Trend in Fully Bonded High Strength Lightweight Prestressed Girders. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/32941

Chicago Manual of Style (16^th Edition):

Nassar, Adil J. “Investigation of Transfer Length, Development Length, Flexural Strength and Prestress Loss Trend in Fully Bonded High Strength Lightweight Prestressed Girders.” 2002. Masters Thesis, Virginia Tech. Accessed February 27, 2021. http://hdl.handle.net/10919/32941.

MLA Handbook (7^th Edition):

Nassar, Adil J. “Investigation of Transfer Length, Development Length, Flexural Strength and Prestress Loss Trend in Fully Bonded High Strength Lightweight Prestressed Girders.” 2002. Web. 27 Feb 2021.

Vancouver:

Nassar AJ. Investigation of Transfer Length, Development Length, Flexural Strength and Prestress Loss Trend in Fully Bonded High Strength Lightweight Prestressed Girders. [Internet] [Masters thesis]. Virginia Tech; 2002. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10919/32941.

Council of Science Editors:

Nassar AJ. Investigation of Transfer Length, Development Length, Flexural Strength and Prestress Loss Trend in Fully Bonded High Strength Lightweight Prestressed Girders. [Masters Thesis]. Virginia Tech; 2002. Available from: http://hdl.handle.net/10919/32941

University of Michigan

15. Yanaka, Makoto. Reliability -based criteria for corrosion in prestressed concrete bridge girders.

Degree: PhD, Civil engineering, 2004, University of Michigan

URL: http://hdl.handle.net/2027.42/124597

► Probability concepts make it possible to take into account the distribution of the loads that may include environmental loads and resistances. This concept also makes… (more)

▼ Probability concepts make it possible to take into account the distribution of the loads that may include environmental loads and resistances. This concept also makes it possible to quantify the level of uncertainty in a way which is consistent with the available information. Therefore, the reliability-based design codes have been developed in various countries. Most of the code calibration effort was directed to the development of the ultimate load criteria. However, serviceability limit states, such as allowable stresses, are often more critical for bridge designs than the ultimate limit states. The allowable tensile stress after prestressing losses, which is one of the allowable stresses, is directly related to cracking due to the applied loads and it is indirectly related to steel corrosion in concrete. The presented research deals with the development of design recommendations in severe environments and a rational design criterion for chloride-induced corrosion from the reliability point of view. In order to approach the problem, cracking due to the applied loads is initially considered. Utilizing the linear analysis of cracked sections, crack width, the probability of cracking, and crack opening time are calculated. Monte Carlo simulation technique is applied to the algorithm so that distributions of the results can be obtained. The parameters are used to obtain the diffusion coefficient of the crack. Using the diffusion coefficient of the crack, finite element analysis (FEA) with Monte Carlo simulation is carried out to obtain the chloride concentration at the surface of reinforcement. The results are utilized to obtain the probability of the initiation of corrosion as well as the distribution of life cycle cost. From the probability of the initiation of corrosion and the life cycle cost, the design recommendations for various environments are obtained. The closed-form formula for one-dimensional diffusion problem is improved for cracked sections. Using this formula, a new design criterion is introduced for prestressed concrete bridges in corrosive environments. Sensitivity analysis reveals the influence of the parameters on the chloride diffusion. From the sensitivity analysis, cover depth might be the most important factor for prestressed concrete girder bridges in terms of the chloride-induced corrosion. Advisors/Committee Members: Nowak, Andrzej S. (advisor).

Subjects/Keywords: Bridge; Concrete; Corrosion; Girders; Prestressed; Reliability-based Criteria

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APA (6^th Edition):

Yanaka, M. (2004). Reliability -based criteria for corrosion in prestressed concrete bridge girders. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/124597

Chicago Manual of Style (16^th Edition):

Yanaka, Makoto. “Reliability -based criteria for corrosion in prestressed concrete bridge girders.” 2004. Doctoral Dissertation, University of Michigan. Accessed February 27, 2021. http://hdl.handle.net/2027.42/124597.

MLA Handbook (7^th Edition):

Yanaka, Makoto. “Reliability -based criteria for corrosion in prestressed concrete bridge girders.” 2004. Web. 27 Feb 2021.

Vancouver:

Yanaka M. Reliability -based criteria for corrosion in prestressed concrete bridge girders. [Internet] [Doctoral dissertation]. University of Michigan; 2004. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2027.42/124597.

Council of Science Editors:

Yanaka M. Reliability -based criteria for corrosion in prestressed concrete bridge girders. [Doctoral Dissertation]. University of Michigan; 2004. Available from: http://hdl.handle.net/2027.42/124597

Iowa State University

16. VanHorn, David Alan. Strength in shear of prestressed concrete I-beams.

Degree: 1959, Iowa State University

URL: https://lib.dr.iastate.edu/rtd/2599

Subjects/Keywords: Prestressed concrete; Girders – Testing; Structural Engineering; Civil Engineering

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APA (6^th Edition):

VanHorn, D. A. (1959). Strength in shear of prestressed concrete I-beams. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/rtd/2599

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

VanHorn, David Alan. “Strength in shear of prestressed concrete I-beams.” 1959. Thesis, Iowa State University. Accessed February 27, 2021. https://lib.dr.iastate.edu/rtd/2599.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

VanHorn, David Alan. “Strength in shear of prestressed concrete I-beams.” 1959. Web. 27 Feb 2021.

Vancouver:

VanHorn DA. Strength in shear of prestressed concrete I-beams. [Internet] [Thesis]. Iowa State University; 1959. [cited 2021 Feb 27]. Available from: https://lib.dr.iastate.edu/rtd/2599.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

VanHorn DA. Strength in shear of prestressed concrete I-beams. [Thesis]. Iowa State University; 1959. Available from: https://lib.dr.iastate.edu/rtd/2599

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Georgia Tech

17. Kelly, Patrick James. Bearing Zone Cracking of Precast Prestressed Concrete Bridge Girders.

Degree: MS, Civil and Environmental Engineering, 2007, Georgia Tech

URL: http://hdl.handle.net/1853/14555

► This thesis presents the results of a research project that tested five friction reducing techniques on the bearing ends of precast prestressed concrete bridge girders.… (more)

Subjects/Keywords: Concrete bridge girders; Prestressed; Precast; Bearing zone cracking

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APA (6^th Edition):

Kelly, P. J. (2007). Bearing Zone Cracking of Precast Prestressed Concrete Bridge Girders. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/14555

Chicago Manual of Style (16^th Edition):

Kelly, Patrick James. “Bearing Zone Cracking of Precast Prestressed Concrete Bridge Girders.” 2007. Masters Thesis, Georgia Tech. Accessed February 27, 2021. http://hdl.handle.net/1853/14555.

MLA Handbook (7^th Edition):

Kelly, Patrick James. “Bearing Zone Cracking of Precast Prestressed Concrete Bridge Girders.” 2007. Web. 27 Feb 2021.

Vancouver:

Kelly PJ. Bearing Zone Cracking of Precast Prestressed Concrete Bridge Girders. [Internet] [Masters thesis]. Georgia Tech; 2007. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1853/14555.

Council of Science Editors:

Kelly PJ. Bearing Zone Cracking of Precast Prestressed Concrete Bridge Girders. [Masters Thesis]. Georgia Tech; 2007. Available from: http://hdl.handle.net/1853/14555

18. Mohammed, Safiuddin Adil. Impact of AASHTO LRFD bridge design specifications on the design of Type C and AASHTO Type IV girder bridges.

Degree: MS, Civil Engineering, 2007, Texas A&M University

URL: http://hdl.handle.net/1969.1/4841

► This research study is aimed at assisting the Texas Department of Transportation (TxDOT) in making a transition from the use of the AASHTO Standard Specifications… (more)

▼ This research study is aimed at assisting the Texas Department of Transportation (TxDOT) in making a transition from the use of the AASHTO Standard Specifications for Highway Bridges to the AASHTO LRFD Bridge Design Specifications for the design of prestressed concrete bridges. It was identified that Type C and AASHTO Type IV are among the most common girder types used by TxDOT for prestressed concrete bridges. This study is specific to these two types of bridges. Guidelines are provided to tailor TxDOT's design practices to meet the requirements of the LRFD Specifications. Detailed design examples for an AASHTO Type IV girder using both the AASHTO Standard Specifications and AASHTO LRFD Specifications are developed and compared. These examples will serve as a reference for TxDOT bridge design engineers. A parametric study for AASHTO Type IV and Type C girders is conducted using span length, girder spacing, and strand diameter as the major parameters that are varied. Based on the results obtained from the parametric study, two critical areas are identified where significant changes in design results are observed when comparing Standard and LRFD designs. The critical areas are the transverse shear requirements and interface shear requirements, and these are further investigated. The interface shear reinforcement requirements are observed to increase significantly when the LRFD Specifications are used for design. New provisions for interface shear design that have been proposed to be included in the LRFD Specifications in 2007 were evaluated. It was observed that the proposed interface shear provisions will significantly reduce the difference between the interface shear reinforcement requirements for corresponding Standard and LRFD designs.The transverse shear reinforcement requirements are found to be varying marginally in some cases and significantly in most of the cases when comparing LRFD designs to Standard designs. The variation in the transverse shear reinforcement requirement is attributed to differences in the shear models used in the two specifications. The LRFD Specifications use a variable truss analogy based on the Modified Compression Field Theory (MCFT). The Standard Specifications use a constant 45-degree truss analogy method for its shear design provisions. The two methodologies are compared and major differences are noted. Advisors/Committee Members: Hueste, Mary Beth D. (advisor), Hogan, Harry A. (committee member), Keating, Peter B. (committee member).

Subjects/Keywords: Prestressed concrete bridge; AASHTO Type IV girders

…Significant Differences between Design Provisions for I-Shaped Prestressed Concrete Bridge Girders… …Specifications on the design of prestressed concrete bridge girders for various limit states is… …Type IV prestressed concrete bridge girders, which are widely used in the state of Texas and… …Prestressed Concrete Bridge Girders The check for compressive stress in the prestressed concrete… …prestressed concrete girders are typically not governed by ultimate limit state. The number of…

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APA (6^th Edition):

Mohammed, S. A. (2007). Impact of AASHTO LRFD bridge design specifications on the design of Type C and AASHTO Type IV girder bridges. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/4841

Chicago Manual of Style (16^th Edition):

Mohammed, Safiuddin Adil. “Impact of AASHTO LRFD bridge design specifications on the design of Type C and AASHTO Type IV girder bridges.” 2007. Masters Thesis, Texas A&M University. Accessed February 27, 2021. http://hdl.handle.net/1969.1/4841.

MLA Handbook (7^th Edition):

Mohammed, Safiuddin Adil. “Impact of AASHTO LRFD bridge design specifications on the design of Type C and AASHTO Type IV girder bridges.” 2007. Web. 27 Feb 2021.

Vancouver:

Mohammed SA. Impact of AASHTO LRFD bridge design specifications on the design of Type C and AASHTO Type IV girder bridges. [Internet] [Masters thesis]. Texas A&M University; 2007. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1969.1/4841.

Council of Science Editors:

Mohammed SA. Impact of AASHTO LRFD bridge design specifications on the design of Type C and AASHTO Type IV girder bridges. [Masters Thesis]. Texas A&M University; 2007. Available from: http://hdl.handle.net/1969.1/4841

19. Langefeld, David Philip. Anchorage-controlled shear capacity of prestressed concrete bridge girders.

Degree: MSin Engineering, Civil Engineering, 2012, University of Texas – Austin

URL: http://hdl.handle.net/2152/ETD-UT-2012-05-5744

► As part of the ongoing research on shear at the Phil M. Ferguson Structural Engineering Laboratory (FSEL) located at The University of Texas at Austin,… (more)

▼ As part of the ongoing research on shear at the Phil M. Ferguson Structural Engineering Laboratory (FSEL) located at The University of Texas at Austin, the anchorage controlled shear capacity of prestressed concrete bridge girders was in this research studied in two distinct ways, experimentally and analytically. The results of this research are an important step towards improving understanding of strand anchorage related issues. For the experimental program, two full-scale Tx46 prestressed concrete bridge girders were fabricated at FSEL. The Tx46 girders were topped with a concrete, composite deck. Both ends of the two girders were instrumented and tested. For the analytical program, a new Anchorage Evaluation Database (AEDB) was developed, by filtering and expanding the University of Texas Prestressed Concrete Shear Database (UTPCSDB), and then evaluated. The AEDB contained 72 shear tests, of which 25 were anchorage failures and 47 were shear failures. The results and analysis from the experimental and analytical programs generated the following three main conclusions: (1) A reasonable percentage of debonding in Tx Girders does not have a marked impact on girder shear capacity calculated using the 2010 AASHTO LRFD General Procedure. (2) The AASHTO anchorage equation is conservative but not accurate. In other words, this equation cannot be used to accurately differentiate between a shear failure and an anchorage failure. In regards to conservativeness, anchorage failures in AASHTO-type girders may lead to unconservative results with respect to the 2010 AASHTO LRFD General Procedure. (3) The 2010 AASHTO anchorage resistance model and its corresponding equation do not apply to Tx Girders. Because of the Tx Girders' wider bottom flange, cracks do not propagate across the strands as they do in AASHTO-type girders. This fact yields overly conservative results for Tx Girders with respect to AASHTO Equation 5.8.3.5-1. In summary, this research uncovered the short-sided nature of the AASHTO anchorage design method. Given its short-comings, there is an obvious need for a validated, comprehensive, and rational approach to anchorage design that considers strength and serviceability. To appropriately develop this method, additional full-scale experimental testing is needed to expand the AEDB, as currently there are not enough tests to distinguish major, general trends and variables. Any future additional research would be expected to further validate and expand the significant findings that this research has produced and so take the next step toward safer, more-efficient bridge designs. Advisors/Committee Members: Bayrak, Oguzhan, 1969- (advisor), Ghannoum, Wassim (committee member).

Subjects/Keywords: Anchorage; Shear; Prestressed concrete bridge girders

…shear capacity of prestressed concrete bridge girders was studied in two distinct ways… …the AASHTO stress limits for prestressed concrete bridge girders, reduces the prestressing… …modern prestressed concrete bridge girders, such as the recently developed Tx Girder, and (… …related issues and shear behavior of prestressed concrete bridge girders was reviewed. The… …prestressed concrete bridge girders, the anchorage strength of the same, and select shear/anchorage…

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APA (6^th Edition):

Langefeld, D. P. (2012). Anchorage-controlled shear capacity of prestressed concrete bridge girders. (Masters Thesis). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/ETD-UT-2012-05-5744

Chicago Manual of Style (16^th Edition):

Langefeld, David Philip. “Anchorage-controlled shear capacity of prestressed concrete bridge girders.” 2012. Masters Thesis, University of Texas – Austin. Accessed February 27, 2021. http://hdl.handle.net/2152/ETD-UT-2012-05-5744.

MLA Handbook (7^th Edition):

Langefeld, David Philip. “Anchorage-controlled shear capacity of prestressed concrete bridge girders.” 2012. Web. 27 Feb 2021.

Vancouver:

Langefeld DP. Anchorage-controlled shear capacity of prestressed concrete bridge girders. [Internet] [Masters thesis]. University of Texas – Austin; 2012. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2152/ETD-UT-2012-05-5744.

Council of Science Editors:

Langefeld DP. Anchorage-controlled shear capacity of prestressed concrete bridge girders. [Masters Thesis]. University of Texas – Austin; 2012. Available from: http://hdl.handle.net/2152/ETD-UT-2012-05-5744

Michigan State University

20. Sharma, Piyush Chandra. Stress distribution in the end block of a post-tensioned prestressed concrete beam.

Degree: MS, 1961, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:12954

Subjects/Keywords: Girders; Prestressed concrete – Testing; Strains and stresses

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APA (6^th Edition):

Sharma, P. C. (1961). Stress distribution in the end block of a post-tensioned prestressed concrete beam. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:12954

Chicago Manual of Style (16^th Edition):

Sharma, Piyush Chandra. “Stress distribution in the end block of a post-tensioned prestressed concrete beam.” 1961. Masters Thesis, Michigan State University. Accessed February 27, 2021. http://etd.lib.msu.edu/islandora/object/etd:12954.

MLA Handbook (7^th Edition):

Sharma, Piyush Chandra. “Stress distribution in the end block of a post-tensioned prestressed concrete beam.” 1961. Web. 27 Feb 2021.

Vancouver:

Sharma PC. Stress distribution in the end block of a post-tensioned prestressed concrete beam. [Internet] [Masters thesis]. Michigan State University; 1961. [cited 2021 Feb 27]. Available from: http://etd.lib.msu.edu/islandora/object/etd:12954.

Council of Science Editors:

Sharma PC. Stress distribution in the end block of a post-tensioned prestressed concrete beam. [Masters Thesis]. Michigan State University; 1961. Available from: http://etd.lib.msu.edu/islandora/object/etd:12954

University of Alabama

21. Burkhalter, David. End zone design for Alabama deep prestressed girders.

Degree: 2016, University of Alabama

URL: http://purl.lib.ua.edu/144946

► Deep prestressed concrete bridge girders are becoming increasingly popular due to their ability to span longer distances and reduce the total cost of bridge projects.… (more)

▼ Deep prestressed concrete bridge girders are becoming increasingly popular due to their ability to span longer distances and reduce the total cost of bridge projects. However, these girders have frequently been subject to end zone cracking during the transfer of prestress forces despite being designed to current AASHTO specifications. Previously, the Alabama Department of Transportation (ALDOT) has designed deep prestressed girders which can span up to 165 ft. During the fabrication of these girders, crack formations in the end zone were typically noticed. To address this concern, longitudinal reinforcement was added to the end zones. This solution controlled cracking to some extent but could not completely eliminate cracking. An experimental study was conducted to find a practical engineering solution to the problem of end zone cracking, as well as to develop a 78 in. deep prestressed bulb-tee girder design to reach a span length of 180 ft. 3D finite element modeling was used to find three practical alternative end zone modifications to the standard design. The modified designs included a lowered draping angle, partial debonding of the strands, and a combination of the two. Four 54 ft. long specimens, including three with end zone modifications, were fabricated at Hanson Pipe & Precast in Pelham, Alabama, and monitored during the detensioning process. The end zones were instrumented with steel and concrete strain gauges to better understand the complex behavior of girder end zones. External DEMEC instrumentation was also included at the girder ends to measure the transfer length of the strands in each specimen. The specimens were then load tested at the UA Large Scale Structures Laboratory (LSSL) to determine the effects of the modified end zone details on the girder capacity. Based on the study, modified girder end zone details are recommended to ALDOT for implementation. (Published By University of Alabama Libraries) Advisors/Committee Members: Aaleti, Sriram, Song, Wei, Richardson, Jim A., Barkey, Mark E., University of Alabama. Dept. of Civil, Construction, and Environmental Engineering.

Subjects/Keywords: Electronic Thesis or Dissertation; – thesis; Civil engineering; ALDOT bulb-tee 78 (BT-78); end zone cracking; long-span girders; prestressed concrete girders; transfer length

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APA (6^th Edition):

Burkhalter, D. (2016). End zone design for Alabama deep prestressed girders. (Thesis). University of Alabama. Retrieved from http://purl.lib.ua.edu/144946

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Burkhalter, David. “End zone design for Alabama deep prestressed girders.” 2016. Thesis, University of Alabama. Accessed February 27, 2021. http://purl.lib.ua.edu/144946.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Burkhalter, David. “End zone design for Alabama deep prestressed girders.” 2016. Web. 27 Feb 2021.

Vancouver:

Burkhalter D. End zone design for Alabama deep prestressed girders. [Internet] [Thesis]. University of Alabama; 2016. [cited 2021 Feb 27]. Available from: http://purl.lib.ua.edu/144946.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Burkhalter D. End zone design for Alabama deep prestressed girders. [Thesis]. University of Alabama; 2016. Available from: http://purl.lib.ua.edu/144946

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Georgia Tech

22. Dunbeck, Jennifer. Evaluation of high strength lightweight concrete precast, prestressed bridge girders.

Degree: MS, Civil and Environmental Engineering, 2009, Georgia Tech

URL: http://hdl.handle.net/1853/28091

► This thesis evaluates the use of High Strength Lightweight Concrete (HSLW) in bridge girders for the I-85 Ramp "B" Bridge crossing SR-34 in Cowetta County,… (more)

Subjects/Keywords: Prestressed; Precast; Concrete; High strength; Lightweight; Girders; Bridges; High strength concrete; Lightweight concrete

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APA (6^th Edition):

Dunbeck, J. (2009). Evaluation of high strength lightweight concrete precast, prestressed bridge girders. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/28091

Chicago Manual of Style (16^th Edition):

Dunbeck, Jennifer. “Evaluation of high strength lightweight concrete precast, prestressed bridge girders.” 2009. Masters Thesis, Georgia Tech. Accessed February 27, 2021. http://hdl.handle.net/1853/28091.

MLA Handbook (7^th Edition):

Dunbeck, Jennifer. “Evaluation of high strength lightweight concrete precast, prestressed bridge girders.” 2009. Web. 27 Feb 2021.

Vancouver:

Dunbeck J. Evaluation of high strength lightweight concrete precast, prestressed bridge girders. [Internet] [Masters thesis]. Georgia Tech; 2009. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1853/28091.

Council of Science Editors:

Dunbeck J. Evaluation of high strength lightweight concrete precast, prestressed bridge girders. [Masters Thesis]. Georgia Tech; 2009. Available from: http://hdl.handle.net/1853/28091

Brno University of Technology

23. Subally, Pavel. Univerzitní knihovna: University Library.

Degree: 2020, Brno University of Technology

URL: http://hdl.handle.net/11012/57652

► The content of this diploma project is to design an university library in the city of Brno, Czech Republic. The object is designed as multistory… (more)

Subjects/Keywords: knižnica; skelet; betónový skelet; zavezená fasáda; Brno; VUT; plochá strecha; biela vaňa; predpätý betón; predpäté stropy; predpäté prievlaky; Library; frame; concrete frame; curtain wall; Brno; VUT; flat roof; white bath; prestressed concrete; prestressed slabs; prestressed girders

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APA (6^th Edition):

Subally, P. (2020). Univerzitní knihovna: University Library. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/57652

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Subally, Pavel. “Univerzitní knihovna: University Library.” 2020. Thesis, Brno University of Technology. Accessed February 27, 2021. http://hdl.handle.net/11012/57652.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Subally, Pavel. “Univerzitní knihovna: University Library.” 2020. Web. 27 Feb 2021.

Vancouver:

Subally P. Univerzitní knihovna: University Library. [Internet] [Thesis]. Brno University of Technology; 2020. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/11012/57652.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Subally P. Univerzitní knihovna: University Library. [Thesis]. Brno University of Technology; 2020. Available from: http://hdl.handle.net/11012/57652

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

24. Nervig, James. Improving predictions of instantaneous camber for prestressed concrete bridge girders.

Degree: 2014, Iowa State University

URL: https://lib.dr.iastate.edu/etd/13817

► Inaccurate prediction of long-term camber in precast prestressed concrete beams (PPCB) creates discrepancies in bridge construction which results in increased costs and construction challenges. Although… (more)

▼ Inaccurate prediction of long-term camber in precast prestressed concrete beams (PPCB) creates discrepancies in bridge construction which results in increased costs and construction challenges. Although emphasis is placed on erection and long-term camber, these challenges have been found to originate from the difference between the estimated design and measured camber at the transfer of prestress and will continue to increase with time. The estimate of the instantaneous camber is influenced by factors such as the method used for determining the camber as well as the assumed modulus of elasticity and initial prestress, while the measured camber can be affected by the measurement technique, quality of formwork and construction, and uniformity of concrete. To systematically study and eliminate the construction challenges associated with camber of precast girders, a research project was undertaken to examine the differences between the measured and designed camber of Iowa girders from fabrication through erection. This thesis focuses on the causes of error found with instantaneous camber by examining the designer's prediction method and variables used for design, the construction practices used for producing a PPCB, and the precasters camber measurement method adopted by the precast industry. While the discrepancy between the measured and designed camber was found to be dependent on the girder type, the designed camber was underestimated due to inaccurate variables used for material properties and the design prestress force. In depth analysis was conducted to investigate different methods of camber prediction and to determine the effects that material properties have on camber. Evaluation of the historical camber measurements that were previously recorded using the current measurement technique revealed that camber is over predicted the majority of the time. Further examination of historical data exposed insufficient data that did not accurately capture the instantaneous camber. For this reason, precasters fabrication procedures were observed and instantaneous camber was measured by the project team from over 100 girders. Observations and independent camber measurements taken by the research team led to the identification of discrepancies between predicted and measured instantaneous camber. Results found that friction, bed deflections, inconsistent top flange surfaces due to the finish that is applied, and inconsistent top flange surfaces due to the beam depth not being uniform along the length of the beam currently produce an average error of 17.6%, 2.8%, 5.2%, and 6.8% respectively. When predicting camber using the AASHTO LRFD (2010) modulus of elasticity, the agreement with the predicted and measured camber produced the best results at 98.2% Â± 14.9% agreement. Accurately measuring camber to account for bed deflections, friction, and inconsistent top flange surfaces and predicting the material and fabricated properties of the girders, such as the modulus of elasticity, prestress force, etc., will improve the accuracy…

Subjects/Keywords: Camber; Deflection; Precast Prestressed Concrete Bridge Girders; Civil Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nervig, J. (2014). Improving predictions of instantaneous camber for prestressed concrete bridge girders. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/13817

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nervig, James. “Improving predictions of instantaneous camber for prestressed concrete bridge girders.” 2014. Thesis, Iowa State University. Accessed February 27, 2021. https://lib.dr.iastate.edu/etd/13817.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nervig, James. “Improving predictions of instantaneous camber for prestressed concrete bridge girders.” 2014. Web. 27 Feb 2021.

Vancouver:

Nervig J. Improving predictions of instantaneous camber for prestressed concrete bridge girders. [Internet] [Thesis]. Iowa State University; 2014. [cited 2021 Feb 27]. Available from: https://lib.dr.iastate.edu/etd/13817.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nervig J. Improving predictions of instantaneous camber for prestressed concrete bridge girders. [Thesis]. Iowa State University; 2014. Available from: https://lib.dr.iastate.edu/etd/13817

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Virginia Tech

25. Neeli, Yeshwanth Sai. Use of Photogrammetry Aided Damage Detection for Residual Strength Estimation of Corrosion Damaged Prestressed Concrete Bridge Girders.

Degree: MS, Civil Engineering, 2020, Virginia Tech

URL: http://hdl.handle.net/10919/99445

► Corrosion damage is a major concern for bridges as it reduces their load carrying capacity. Bridge failures in the past have been attributed to corrosion… (more)

▼ Corrosion damage is a major concern for bridges as it reduces their load carrying capacity. Bridge failures in the past have been attributed to corrosion damage. The risk associated with corrosion damage caused failures increases as the infrastructure ages. Many bridges across the world built forty to fifty years ago are now in a deteriorated condition and need to be repaired and retrofitted. Visual inspections to identify damage or deterioration on a bridge are very important to assess the condition of the bridge and determine the need for repairing or for posting weight restrictions for the vehicles that use the bridge. These inspections require close physical access to the hard-to-reach areas of the bridge for physically measuring the damage which involves many resources in the form of experienced engineers, skilled labor, equipment, time, and money. The safety of the personnel involved in the inspections is also a major concern. Nowadays, a lot of research is being done in using Unmanned Aerial Vehicles (UAVs) like drones for bridge inspections and in using artificial intelligence for the detection of cracks on the images of concrete and steel members. Girders or beams in a bridge are the primary longitudinal load carrying members. Concrete inherently is weak in tension. To address this problem, High Strength steel reinforcement (called prestressing steel or prestressing strands) in prestressed concrete beams is pre-loaded with a tensile force before the application of any loads so that the regions which will experience tension under the service loads would be subjected to a pre-compression to improve the performance of the beam and delay cracking. Spalls are a type of corrosion damage on concrete members where portions of concrete fall off (section loss) due to corrosion in the steel reinforcement, exposing the reinforcement to the environment which leads to accelerated corrosion causing a loss of cross-sectional area and ultimately, a rupture in the steel. If the process of detecting the damage (cracks, spalls, exposed or severed reinforcement, etc.) is automated, the next logical step that would add great value would be, to quantify the effect of the damage detected on the load carrying capacity of the bridges. Using a quantified estimate of the remaining capacity of a bridge, determined after accounting for the corrosion damage, informed decisions can be made about the measures to be taken. This research proposes a stepwise framework to forge a link between a semi-automated visual inspection and residual capacity evaluation of actual prestressed concrete bridge girders obtained from two bridges that have been removed from service in Virginia due to extensive deterioration. 3D point clouds represent an object as a set of points on its surface in three dimensional space. These point clouds can be constructed either using laser scanning or using Photogrammetry from images of the girders captured with a digital camera. In this research, 3D point clouds are reconstructed from sequences of overlapping images of… Advisors/Committee Members: Roberts-Wollmann, Carin L. (committeechair), Koutromanos, Ioannis (committee member), Hebdon, Matthew Hardy (committee member).

Subjects/Keywords: Full-Scale Prestressed Concrete Bridge Girders; Corrosion Damage; Bridge Inspections; Photogrammetry; Structure from Motion; 3D Point Cloud; Textured Mesh Model; Crack Detection; Spall Detection; 3D Damage Maps; Residual Capacity Estimation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Neeli, Y. S. (2020). Use of Photogrammetry Aided Damage Detection for Residual Strength Estimation of Corrosion Damaged Prestressed Concrete Bridge Girders. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/99445

Chicago Manual of Style (16^th Edition):

Neeli, Yeshwanth Sai. “Use of Photogrammetry Aided Damage Detection for Residual Strength Estimation of Corrosion Damaged Prestressed Concrete Bridge Girders.” 2020. Masters Thesis, Virginia Tech. Accessed February 27, 2021. http://hdl.handle.net/10919/99445.

MLA Handbook (7^th Edition):

Neeli, Yeshwanth Sai. “Use of Photogrammetry Aided Damage Detection for Residual Strength Estimation of Corrosion Damaged Prestressed Concrete Bridge Girders.” 2020. Web. 27 Feb 2021.

Vancouver:

Neeli YS. Use of Photogrammetry Aided Damage Detection for Residual Strength Estimation of Corrosion Damaged Prestressed Concrete Bridge Girders. [Internet] [Masters thesis]. Virginia Tech; 2020. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10919/99445.

Council of Science Editors:

Neeli YS. Use of Photogrammetry Aided Damage Detection for Residual Strength Estimation of Corrosion Damaged Prestressed Concrete Bridge Girders. [Masters Thesis]. Virginia Tech; 2020. Available from: http://hdl.handle.net/10919/99445

Utah State University

26. Osborn, Parry. Ultimate Shear Capacity and Residual Prestress Force of Full-Scale, Forty-One-Year-Old Prestressed-Concrete Girders.

Degree: MS, Civil and Environmental Engineering, 2010, Utah State University

URL: https://digitalcommons.usu.edu/etd/591

► The ultimate shear capacity of prestressed concrete beams is difficult to predict accurately, especially after being in service for an extended period of time.… (more)

Subjects/Keywords: Bridge; Girders; Prestressed Concrete; Residual Prestress; Shear Capacity; Ultimate Capacity; Civil Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Osborn, P. (2010). Ultimate Shear Capacity and Residual Prestress Force of Full-Scale, Forty-One-Year-Old Prestressed-Concrete Girders. (Masters Thesis). Utah State University. Retrieved from https://digitalcommons.usu.edu/etd/591

Chicago Manual of Style (16^th Edition):

Osborn, Parry. “Ultimate Shear Capacity and Residual Prestress Force of Full-Scale, Forty-One-Year-Old Prestressed-Concrete Girders.” 2010. Masters Thesis, Utah State University. Accessed February 27, 2021. https://digitalcommons.usu.edu/etd/591.

MLA Handbook (7^th Edition):

Osborn, Parry. “Ultimate Shear Capacity and Residual Prestress Force of Full-Scale, Forty-One-Year-Old Prestressed-Concrete Girders.” 2010. Web. 27 Feb 2021.

Vancouver:

Osborn P. Ultimate Shear Capacity and Residual Prestress Force of Full-Scale, Forty-One-Year-Old Prestressed-Concrete Girders. [Internet] [Masters thesis]. Utah State University; 2010. [cited 2021 Feb 27]. Available from: https://digitalcommons.usu.edu/etd/591.

Council of Science Editors:

Osborn P. Ultimate Shear Capacity and Residual Prestress Force of Full-Scale, Forty-One-Year-Old Prestressed-Concrete Girders. [Masters Thesis]. Utah State University; 2010. Available from: https://digitalcommons.usu.edu/etd/591

University of Texas – Austin

27. Wang, Tz-Wei. Shear performance of ASR/DEF damaged prestressed concrete trapezoidal box bridge girders.

Degree: PhD, Civil Engineering, 2010, University of Texas – Austin

URL: http://hdl.handle.net/2152/ETD-UT-2010-08-1637

► Concrete bridges in Texas have developed large cracks in bent caps and pretensioned trapezoidal bridge girders. The bridges show premature concrete deterioration due to alkali-silica… (more)

▼ Concrete bridges in Texas have developed large cracks in bent caps and pretensioned trapezoidal bridge girders. The bridges show premature concrete deterioration due to alkali-silica reaction (ASR) and delayed ettringite formation (DEF). There is concern that deterioration due to ASR/DEF may lead to a loss of structural capacity. However, there are no quantitative guidelines to relate the level of concrete deterioration due to ASR/DEF to structural performance. Using such guidelines, the need for rehabilitation of beams with ASR/DEF cracking can be assessed. The goal of this research was to determine the shear capacity of pretensioned trapezoidal box girder specimens exhibiting varying degrees of ASR and/or DEF cracking and to use the shear testing results to evaluate the severity of the problem that may exist in Texas bridge structures. To achieve this goal, beams that were severely deteriorated due to ASR/DEF over a period of more than ten years were transported to the University of Texas for testing to failure. Both severely deteriorated and uncracked beams were tested in shear. The test results were used to evaluate the shear performance of trapezoidal box beams affected by ASR/DEF. In addition, three different types of forensic analyses were conducted on the beams to understand the nature of the ASR/DEF cracks and severity of the deterioration. After testing, it is found that the shear capacity of the test specimens was not significantly reduced even with heavy ASR/DEF cracking. Assessment using current US design provisions for bridges or buildings (ACI 318-08 and AASHTO LRFD 2008) and the proposed provision from an earlier project (TxDOT Project 5253) yielded conservative estimates of strength. Results from forensic analyses provided a qualitative indication of ASR/DEF damage but did not correlate with the observed levels of ASR/DEF deterioration. Advisors/Committee Members: Jirsa, J. O. (James Otis) (advisor), Bayrak, Oguzhan (committee member), Ghannoum, Wassim M. (committee member), Wheat, Harovel G. (committee member), Zhu, Jinying (committee member).

Subjects/Keywords: ASR; DEF; Premature concrete deterioration; Shear; Strut-and-tie; Prestressed; Box girders; Concrete girders; Concrete distress; Ettringite; Alkali-silica reaction; Delayed ettringite formation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wang, T. (2010). Shear performance of ASR/DEF damaged prestressed concrete trapezoidal box bridge girders. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/ETD-UT-2010-08-1637

Chicago Manual of Style (16^th Edition):

Wang, Tz-Wei. “Shear performance of ASR/DEF damaged prestressed concrete trapezoidal box bridge girders.” 2010. Doctoral Dissertation, University of Texas – Austin. Accessed February 27, 2021. http://hdl.handle.net/2152/ETD-UT-2010-08-1637.

MLA Handbook (7^th Edition):

Wang, Tz-Wei. “Shear performance of ASR/DEF damaged prestressed concrete trapezoidal box bridge girders.” 2010. Web. 27 Feb 2021.

Vancouver:

Wang T. Shear performance of ASR/DEF damaged prestressed concrete trapezoidal box bridge girders. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2010. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2152/ETD-UT-2010-08-1637.

Council of Science Editors:

Wang T. Shear performance of ASR/DEF damaged prestressed concrete trapezoidal box bridge girders. [Doctoral Dissertation]. University of Texas – Austin; 2010. Available from: http://hdl.handle.net/2152/ETD-UT-2010-08-1637

University of Minnesota

28. Erkmen, Bulent. Self-Compacting Concrete for Prestressed Bridge Girders.

Degree: PhD, Civil Engineering, 2008, University of Minnesota

URL: http://purl.umn.edu/45477

► Self-consolidating concrete (SCC), which is different from conventional concrete especially in its fresh state, is a highly workable concrete that flows through congested reinforcement under… (more)

▼ Self-consolidating concrete (SCC), which is different from conventional concrete especially in its fresh state, is a highly workable concrete that flows through congested reinforcement under its own weight alone, filling the formwork without segregation of its constituent materials with a void-free structure, and can be placed without any vibration. Self-consolidating concrete was first developed in Japan in the early 1980s, and the main issues that promoted the development of SCC were the shortage of skilled labor and the emergence of heavily reinforced structures that made it difficult to sufficiently consolidate the concrete which is crucial for its durability. Although some raw materials and chemical admixtures may increase the initial cost, its use is on the rise worldwide for precast concrete construction mainly due to its ease of placement over conventional concrete. Some benefits of using SCC for precast concrete applications are easily quantified such as faster construction, reduced noise level, and improved surface finish which eliminates the need for patching. Other less tangible benefits include worker safety improvements and extended life of the precasting forms. Although SCC has been developed and successfully used for numerous precast and cast-in-place applications worldwide, and both fresh and hardened properties of SCC have been investigated, concerns have remained regarding mix proportioning, acceptance criteria of SCC in its plastic state, and long term behavior (e.g., creep and shrinkage) of SCC precast/pretensioned elements in service. Limited literature is available to evaluate the hardened and long-term behavior of SCC members, particularly creep, shrinkage, and elastic modulus. Furthermore, there is a wide variation in the findings regarding the long-term behavior of SCC. Due to these reasons, many state departments of transportation, including the Minnesota Department of Transportation (Mn/DOT), have been hesitant to allow SCC for precast bridge girder applications. This study was initiated with the intent to investigate the viability of using SCC developed at local precast plants with locally available materials for the construction of precast prestressed SCC girders in the State of Minnesota. The primary objective of the research was to determine both short-term and long-term properties of SCC bridge girders, evaluate the applicability and accuracy of available test procedures, design equations, and material models for SCC bridge girders. The research was divided into several phases. In the first phase, SCC trial mixes were developed using locally available materials from two local precast concrete plants (Plant-A and Plan-B). The developed trial SCC mixes were studied to identify the main parameters that affect the performance of SCC in its fresh state (e.g., flowability and segregation resistance) such as cement, high-range water reducing admixture dosage, and fresh concrete temperature. It was found that variations in cement from the same supplier with no difference in the cement mill…

Subjects/Keywords: Creep; Fresh concrete properties; Prestress losses; Prestressed concrete girders; Self-consolidating concrete; Shrinkage; Civil Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Erkmen, B. (2008). Self-Compacting Concrete for Prestressed Bridge Girders. (Doctoral Dissertation). University of Minnesota. Retrieved from http://purl.umn.edu/45477

Chicago Manual of Style (16^th Edition):

Erkmen, Bulent. “Self-Compacting Concrete for Prestressed Bridge Girders.” 2008. Doctoral Dissertation, University of Minnesota. Accessed February 27, 2021. http://purl.umn.edu/45477.

MLA Handbook (7^th Edition):

Erkmen, Bulent. “Self-Compacting Concrete for Prestressed Bridge Girders.” 2008. Web. 27 Feb 2021.

Vancouver:

Erkmen B. Self-Compacting Concrete for Prestressed Bridge Girders. [Internet] [Doctoral dissertation]. University of Minnesota; 2008. [cited 2021 Feb 27]. Available from: http://purl.umn.edu/45477.

Council of Science Editors:

Erkmen B. Self-Compacting Concrete for Prestressed Bridge Girders. [Doctoral Dissertation]. University of Minnesota; 2008. Available from: http://purl.umn.edu/45477

University of Minnesota

29. Erkmen, Bulent. Self-compacting concrete for prestressed bridge girders.

Degree: PhD, Civil Engineering, 2008, University of Minnesota

URL: http://purl.umn.edu/47733

► Researchers conducted an experimental program to investigate the viability of producing self-consolidating concrete (SCC) using locally available aggregate, and the viability of its use in… (more)

Subjects/Keywords: Creep; Fresh Concrete Properties; Prestress Losses; Prestressed Concrete Girders; Self-Consolidating Concrete; Shrinkage; Civil Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Erkmen, B. (2008). Self-compacting concrete for prestressed bridge girders. (Doctoral Dissertation). University of Minnesota. Retrieved from http://purl.umn.edu/47733

Chicago Manual of Style (16^th Edition):

Erkmen, Bulent. “Self-compacting concrete for prestressed bridge girders.” 2008. Doctoral Dissertation, University of Minnesota. Accessed February 27, 2021. http://purl.umn.edu/47733.

MLA Handbook (7^th Edition):

Erkmen, Bulent. “Self-compacting concrete for prestressed bridge girders.” 2008. Web. 27 Feb 2021.

Vancouver:

Erkmen B. Self-compacting concrete for prestressed bridge girders. [Internet] [Doctoral dissertation]. University of Minnesota; 2008. [cited 2021 Feb 27]. Available from: http://purl.umn.edu/47733.

Council of Science Editors:

Erkmen B. Self-compacting concrete for prestressed bridge girders. [Doctoral Dissertation]. University of Minnesota; 2008. Available from: http://purl.umn.edu/47733

30. Stillings, Tyler W. Load Distribution and Ultimate Strength of an Adjacent Precast, Prestressed Concrete Box Girder Bridge.

Degree: MS, Engineering and Applied Science: Civil Engineering, 2012, University of Cincinnati

URL: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1335463075

► A decommissioned, adjacent precast, prestressed concrete box girder bridge constructed in 1967 was load tested to destruction in August and September of 2010. The… (more)

Subjects/Keywords: Civil Engineering; Prestressed concrete; Concrete box girders; Adjacent box girder bridge; Full-scale bridge test

…individual precast, prestressed concrete box girders is well understood, their behavior when… …prestressed concrete box girders, two girders (one from a decommissioned bridge and the other… …wide prestressed concrete box girders separated by 0.5 in. (12.7 mm), for a total… …LIST OF FIGURES Figure 1.1.1- Underside of an adjacent precast, prestressed concrete box… …prestressed concrete box girder bridges have been a popular choice for short span bridges in the…

10 more images…

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Stillings, T. W. (2012). Load Distribution and Ultimate Strength of an Adjacent Precast, Prestressed Concrete Box Girder Bridge. (Masters Thesis). University of Cincinnati. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ucin1335463075

Chicago Manual of Style (16^th Edition):

Stillings, Tyler W. “Load Distribution and Ultimate Strength of an Adjacent Precast, Prestressed Concrete Box Girder Bridge.” 2012. Masters Thesis, University of Cincinnati. Accessed February 27, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1335463075.

MLA Handbook (7^th Edition):

Stillings, Tyler W. “Load Distribution and Ultimate Strength of an Adjacent Precast, Prestressed Concrete Box Girder Bridge.” 2012. Web. 27 Feb 2021.

Vancouver:

Stillings TW. Load Distribution and Ultimate Strength of an Adjacent Precast, Prestressed Concrete Box Girder Bridge. [Internet] [Masters thesis]. University of Cincinnati; 2012. [cited 2021 Feb 27]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1335463075.

Council of Science Editors:

Stillings TW. Load Distribution and Ultimate Strength of an Adjacent Precast, Prestressed Concrete Box Girder Bridge. [Masters Thesis]. University of Cincinnati; 2012. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1335463075

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