+publisher:"Cornell University" +contributor:("O\'Rourke, Thomas Denis")

Cornell University

1. Argyrou, Christina. PIPELINE RESPONSE TO EARTHQUAKE-INDUCED GROUND DEFORMATION.

Degree: PhD, Civil and Environmental Engineering, 2018, Cornell University

► The primary focus of this thesis is the evaluation through experimental and numerical investigations of pipeline performance under earthquake-induced ground deformation. This kind of deformation… (more)

▼ The primary focus of this thesis is the evaluation through experimental and numerical investigations of pipeline performance under earthquake-induced ground deformation. This kind of deformation is associated with soil liquefaction, landslides, fault rupture, tectonic uplift and subsidence and settlement of loose granular soils. A large part of this thesis involves the earthquake response of pipelines with defects, e.g., cracks and/or leaking joints, rehabilitated with cured-in-place linings (CIPLs). The thesis begins with the description of a series of full-scale static and dynamic axial tension tests to characterize the tensile capacity of CIPL-reinforced pipelines. The CIPL de-bonding is of great importance for the accommodation of tensile deformation. The amount of CIPL de-bonding is a function of the CIPL properties (i.e. stiffness, tensile strength) with respect to the pipe/CIPL interface bond strength, which increases with increasing internal pressure. A one-dimensional finite element model is developed that accounts for the CIPL de-bonding mechanism as a Mode II fracture propagation phenomenon, including the enhanced pipe/CIPL interface strength in the presence of internal pressure. Seismic wave interaction with CIPL-reinforced pipelines subjects them to alternating tension and compression as the waves propagate through the ground. The combinations of ground velocity amplitude and pulse period that cause lining deformation are evaluated through analytical models of seismic wave/pipeline interaction and finite element simulations. CIPL-strengthened pipeline response to permanent ground deformation was also investigated through large-scale fault rupture experiments and numerical simulations. Fault rupture test results on pipelines with CIPLs are presented and compared with test results on unlined pipelines, to assess the effectiveness of the CIPLs for seismic retrofit. The results of the numerical model developed in this work that accounts for de-bonding between the lining and pipe as Mode II fracture propagation are in good agreement with full-scale fault rupture test results. The thesis also includes a comprehensive evaluation of ductile iron (DI) pipeline response to earthquake-induced ground deformation through the results of a large-scale testing program, including a fault rupture test on a 150-mm DI pipeline with restrained axial slip joints. Three different types of DI joints are considered in this study: push-on, restrained, and restrained axial slip joints, which are often referred to as hazard-resilient joints. A series of axial tension, axial compression, four-point bending and ground rupture test results conducted on DI jointed pipes are used to identify the limit states associated with DI joint performance. A two-dimensional finite element model accounting for (i) coupled shear/normal forces to the pipeline and (ii) bell resistance to movement, validated against large-scale fault rupture test results, is used for the quantification of the DI pipeline performance under strike-slip faulting… Advisors/Committee Members: O'Rourke, Thomas Denis (chair), Nozick, Linda K. (committee member), Stewart, Harry Eaton (committee member), Grigoriu, Mircea Dan (committee member).

Subjects/Keywords: Finite Element Modeling; cured-in-place linings; pipelines; seismic retrofit; soil-pipeline interaction; Civil engineering

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Argyrou, C. (2018). PIPELINE RESPONSE TO EARTHQUAKE-INDUCED GROUND DEFORMATION. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/59321

Chicago Manual of Style (16^th Edition):

Argyrou, Christina. “PIPELINE RESPONSE TO EARTHQUAKE-INDUCED GROUND DEFORMATION.” 2018. Doctoral Dissertation, Cornell University. Accessed January 24, 2021. http://hdl.handle.net/1813/59321.

MLA Handbook (7^th Edition):

Argyrou, Christina. “PIPELINE RESPONSE TO EARTHQUAKE-INDUCED GROUND DEFORMATION.” 2018. Web. 24 Jan 2021.

Vancouver:

Argyrou C. PIPELINE RESPONSE TO EARTHQUAKE-INDUCED GROUND DEFORMATION. [Internet] [Doctoral dissertation]. Cornell University; 2018. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1813/59321.

Council of Science Editors:

Argyrou C. PIPELINE RESPONSE TO EARTHQUAKE-INDUCED GROUND DEFORMATION. [Doctoral Dissertation]. Cornell University; 2018. Available from: http://hdl.handle.net/1813/59321

Cornell University

2. Bouziou, Dimitra. Earthquake-Induced Ground Deformation Effects On Buried Pipelines.

Degree: PhD, Civil and Environmental Engineering, 2015, Cornell University

URL: http://hdl.handle.net/1813/39318

► The primary subject of this thesis is the evaluation of pipeline performance during earthquakes through analytical and experimental studies, spatial analysis, and probabilistic methodologies. Permanent… (more)

▼ The primary subject of this thesis is the evaluation of pipeline performance during earthquakes through analytical and experimental studies, spatial analysis, and probabilistic methodologies. Permanent ground deformations caused by liquefaction are also addressed through spatial and statistical analysis, and are compared to foundation deformations caused by liquefaction effects estimated through building damage surveys. This thesis starts with a comprehensive analytical and experimental assessment of segmented pipeline response to transient ground deformation before and after rehabilitation with in situ lining technologies. The different modes of segmented pipeline deformation caused by seismic wave propagation are investigated through finite element analyses to show that the most prominent form of deformation at weak pipeline joints and circumferential pipe cracks are in the axial direction. They exceed the levels of all other forms of pipeline deformation by several orders of magnitude. Nonaxial deformations have negligible effects on pipeline performance under seismic body wave propagation. Pipeline performance after rehabilitation with in situ linings is studied through large-scale testing and the effectiveness of in situ lining technology for seismic retrofit of critical lifelines is evaluated. Pipeline performance during earthquakes is also investigated through spatial analysis of the Christchurch water distribution system response to transient and permanent ground deformations during the 22 February 2011 Christchurch earthquake, New Zealand (NZ). Repair regressions for different pipe types are developed using spatial data sets that are unique in size and complexity, including dense array ground motion records, detailed mapping of areas affected by soil liquefaction, as well as spatial data sets for the water distribution system, geocoded repair records, and high resolution Light Detection and Ranging (LiDAR) measurements of vertical and horizontal movements. This study expands on previous work in several important ways, and provides a detailed framework of the analytical processes for repair regressions that assists in future investigations with data of similar size and complexity. A probabilistic model is presented in which the expected value of the ground strain in the axial pipeline direction within a strain field is calculated by assuming that pipeline orientation with respect to the strain field is uniformly distributed and by accounting for possible differences in tensile and compressive strains with a weighting factor. The proposed methodology is applied in regression analysis of pipeline damage caused by lateral ground strains during the 22 February 2011 Christchurch earthquake, NZ, and can be used for future investigations to improve the assessment of ground strains affecting segmented pipelines. Permanent ground deformation during the 2010-2011 Canterbury Earthquake Sequence, NZ, is evaluated through statistical analysis of vertical and lateral ground displacements, as well as differential vertical… Advisors/Committee Members: O'Rourke, Thomas Denis (chair), Grigoriu, Mircea Dan (committee member), Phoenix, Stuart Leigh (committee member), Aref, Amjad J (committee member).

Subjects/Keywords: earthquakes; pipelines; ground deformation

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Bouziou, D. (2015). Earthquake-Induced Ground Deformation Effects On Buried Pipelines. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/39318

Chicago Manual of Style (16^th Edition):

Bouziou, Dimitra. “Earthquake-Induced Ground Deformation Effects On Buried Pipelines.” 2015. Doctoral Dissertation, Cornell University. Accessed January 24, 2021. http://hdl.handle.net/1813/39318.

MLA Handbook (7^th Edition):

Bouziou, Dimitra. “Earthquake-Induced Ground Deformation Effects On Buried Pipelines.” 2015. Web. 24 Jan 2021.

Vancouver:

Bouziou D. Earthquake-Induced Ground Deformation Effects On Buried Pipelines. [Internet] [Doctoral dissertation]. Cornell University; 2015. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1813/39318.

Council of Science Editors:

Bouziou D. Earthquake-Induced Ground Deformation Effects On Buried Pipelines. [Doctoral Dissertation]. Cornell University; 2015. Available from: http://hdl.handle.net/1813/39318

Cornell University

3. Jung, Jai. Soil-Pipe Interaction Under Plane Strain Conditions.

Degree: PhD, Civil and Environmental Engineering, 2011, Cornell University

URL: http://hdl.handle.net/1813/33543

► Permanent ground deformations associated with geohazards such as earthquakes, liquefaction and landslides can introduce substantial axial and bending strains on buried pipeline systems. Longitudinal and… (more)

▼ Permanent ground deformations associated with geohazards such as earthquakes, liquefaction and landslides can introduce substantial axial and bending strains on buried pipeline systems. Longitudinal and transverse bending strains depend on the force imposed on the pipeline by relative displacement between the pipeline and surrounding soil. Analytical models used currently in design are based on p-y, t-x, and q-z for interaction relationships, and they require reliable p-y, q-z and oblique forcedisplacement relationships. Moreover, to advance the state-of-the-art for soil continuum models, it is necessary to develop better simulations of soil-pipeline interactions rather than rely on empirically based p-y and q-z relationships. In this study, various modeling procedures are developed for simulating soilpipeline interactions under lateral and vertical relative movement between soil and pipe as well as relative movement at oblique angles with respect to the pipeline for dry and partially saturated sand. Mohr-Coulomb (MC) strength parameters applied in FE analyses for both dry and partially saturated sand are developed from direct shear test data and from multiple linear regression. To represent strain softening, the model proposed by Anastasopoulos, et al. (2007) is used in this work to diminish both the friction and dilation angles to residual values. The MC parameters are applied in the FE simulations to produce dimensionless force vs. dimensionless displacement plots. The results show excellent agreement with large-scale 2D experimental results in terms of pre-peak, peak, and post-peak for both dry and partially saturated soil. The modeling process is expanded to investigate and characterize the maximum lateral force as a function of pipe depth. The analytical results from simulations of lateral, vertical, and oblique pipe movement for semi-infinite, plane strain soil conditions are summarized in dimensionless form. They are plotted on a polar coordinate graph from which the maximum force can be estimated for any size pipe at any depth in response to any orientation of relative movement between the pipe and soil for both dry and partially saturated sands. Advisors/Committee Members: O'Rourke, Thomas Denis (chair), Stewart, Harry Eaton (committee member), Aquino, Wilkins (committee member).

Subjects/Keywords: Soil-Pipe Interaction; Plane Strain Conditions; Numerical Analysis

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Jung, J. (2011). Soil-Pipe Interaction Under Plane Strain Conditions. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/33543

Chicago Manual of Style (16^th Edition):

Jung, Jai. “Soil-Pipe Interaction Under Plane Strain Conditions.” 2011. Doctoral Dissertation, Cornell University. Accessed January 24, 2021. http://hdl.handle.net/1813/33543.

MLA Handbook (7^th Edition):

Jung, Jai. “Soil-Pipe Interaction Under Plane Strain Conditions.” 2011. Web. 24 Jan 2021.

Vancouver:

Jung J. Soil-Pipe Interaction Under Plane Strain Conditions. [Internet] [Doctoral dissertation]. Cornell University; 2011. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1813/33543.

Council of Science Editors:

Jung J. Soil-Pipe Interaction Under Plane Strain Conditions. [Doctoral Dissertation]. Cornell University; 2011. Available from: http://hdl.handle.net/1813/33543

Cornell University

4. Kesete, Yohannes. Managing Natural Disaster Risk Through Insurance.

Degree: PhD, Civil and Environmental Engineering, 2015, Cornell University

URL: http://hdl.handle.net/1813/40741

► This dissertation consists of three articles. The first introduces a new modeling framework to help understand and manage primary insurers' roles in catastrophe risk management.… (more)

▼ This dissertation consists of three articles. The first introduces a new modeling framework to help understand and manage primary insurers' roles in catastrophe risk management. The framework includes a new game theoretic optimization model of primary insurer decisions that interacts with a utility-based homeowner decision model, and is integrated with a regional catastrophe loss estimation model. Reinsurer and government roles are represented as bounds on the insurer-insured interactions. The modeling framework can be used to explore two primary questions. First, how should insurers, using a credible assessment of natural disaster risk, optimize their catastrophe risk insurance-policy design, portfolio, and risktransfer decisions within a context defined by homeowners, reinsurers, and government agencies? Second, how do changes in the context affect insurers' ability to operate successfully? Specifically, it provides results that indicate, under equilibrium, the (1) primary insurers' optimal actions and outcomes, (2) homeowners' optimal actions and outcomes, (3) reinsurers' outcomes, and (4) loss distribution for each stakeholder. The second article, using survey data, explores the roles of prior disaster experience and risk perception on flood insurance purchase decision-making. The survey was administered by a computer-assisted telephone interviewing system in the eastern half of North Carolina. A structural equation model was built to understand the direct and indirect effects of different variables on one another and on flood insurance purchase decision-making. The article provides insight on the mediation effect of risk perception, by linking prior disaster experience to the undertaking of protective action. It also discusses the implications of this insight for designing effective risk communication tools, the timing of risk awareness campaigns, and the provision of affordable insurance policies. The third article, using the same survey data from the eastern half of North Carolina, investigates the relationship between self-insurance and market insurance. An ordered logistic model was developed by using revealed preferences about structural retrofit measures and standard homeowners' insurance deductible choices. The article shows that self-insurance and market insurance are substitutes and discusses the implications of this finding in terms of setting appropriate standard homeowners' premium and deductible values. Advisors/Committee Members: Nozick,Linda K. (chair), Alvarez Daziano,Ricardo (committee member), O'Rourke,Thomas Denis (committee member).

Subjects/Keywords: Insurance; Risk perception; Optimization

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Kesete, Y. (2015). Managing Natural Disaster Risk Through Insurance. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/40741

Chicago Manual of Style (16^th Edition):

Kesete, Yohannes. “Managing Natural Disaster Risk Through Insurance.” 2015. Doctoral Dissertation, Cornell University. Accessed January 24, 2021. http://hdl.handle.net/1813/40741.

MLA Handbook (7^th Edition):

Kesete, Yohannes. “Managing Natural Disaster Risk Through Insurance.” 2015. Web. 24 Jan 2021.

Vancouver:

Kesete Y. Managing Natural Disaster Risk Through Insurance. [Internet] [Doctoral dissertation]. Cornell University; 2015. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1813/40741.

Council of Science Editors:

Kesete Y. Managing Natural Disaster Risk Through Insurance. [Doctoral Dissertation]. Cornell University; 2015. Available from: http://hdl.handle.net/1813/40741

Cornell University

5. Legg, Meredith. Resource Allocation For Regional Hurricane Mitigation Planning.

Degree: PhD, Civil and Environmental Engineering, 2011, Cornell University

URL: http://hdl.handle.net/1813/29420

► This dissertation introduces a linear program to help guide optimal expenditure of government spending for regional hurricane risk management and to provide insight into some… (more)

Subjects/Keywords: hurricane; mitigation; resource allocation; optimization

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Legg, M. (2011). Resource Allocation For Regional Hurricane Mitigation Planning. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/29420

Chicago Manual of Style (16^th Edition):

Legg, Meredith. “Resource Allocation For Regional Hurricane Mitigation Planning.” 2011. Doctoral Dissertation, Cornell University. Accessed January 24, 2021. http://hdl.handle.net/1813/29420.

MLA Handbook (7^th Edition):

Legg, Meredith. “Resource Allocation For Regional Hurricane Mitigation Planning.” 2011. Web. 24 Jan 2021.

Vancouver:

Legg M. Resource Allocation For Regional Hurricane Mitigation Planning. [Internet] [Doctoral dissertation]. Cornell University; 2011. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1813/29420.

Council of Science Editors:

Legg M. Resource Allocation For Regional Hurricane Mitigation Planning. [Doctoral Dissertation]. Cornell University; 2011. Available from: http://hdl.handle.net/1813/29420

Cornell University

6. Li, Chunying. Strategic Planning For Shelter Locations And Transportation Under Hurricane Conditions.

Degree: PhD, Civil and Environmental Engineering, 2011, Cornell University

URL: http://hdl.handle.net/1813/30625

► Responding to hurricanes is an exceedingly complex task whose effectiveness can significantly influence the final impact of a hurricane. Despite a lot of progress, recent… (more)

Subjects/Keywords: hurricane evacuation; dynamic traffic assignment; public shelter

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Li, C. (2011). Strategic Planning For Shelter Locations And Transportation Under Hurricane Conditions. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/30625

Chicago Manual of Style (16^th Edition):

Li, Chunying. “Strategic Planning For Shelter Locations And Transportation Under Hurricane Conditions.” 2011. Doctoral Dissertation, Cornell University. Accessed January 24, 2021. http://hdl.handle.net/1813/30625.

MLA Handbook (7^th Edition):

Li, Chunying. “Strategic Planning For Shelter Locations And Transportation Under Hurricane Conditions.” 2011. Web. 24 Jan 2021.

Vancouver:

Li C. Strategic Planning For Shelter Locations And Transportation Under Hurricane Conditions. [Internet] [Doctoral dissertation]. Cornell University; 2011. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1813/30625.

Council of Science Editors:

Li C. Strategic Planning For Shelter Locations And Transportation Under Hurricane Conditions. [Doctoral Dissertation]. Cornell University; 2011. Available from: http://hdl.handle.net/1813/30625

7. Mottl, Natalie Lucia. Material Characterization and Testing of Cured-in-Place Pipe to Resist Earthquake Related Ground Deformation.

Degree: M.S., Civil and Environmental Engineering, Civil and Environmental Engineering, 2019, Cornell University

URL: http://hdl.handle.net/1813/67679

► This thesis summarizes the testing procedures and key results of full-scale tests on Cured-In-Place Pipe (CIPP) to evaluate its performance under earthquake induced ground deformation.… (more)

▼ This thesis summarizes the testing procedures and key results of full-scale tests on Cured-In-Place Pipe (CIPP) to evaluate its performance under earthquake induced ground deformation. The CIPP used in this work is commercially available as Aqua-pipe, manufactured by Sanexen Environmental Services, Inc. to rehabilitate water mains. The investigation covered in this work includes tensile coupon tests, direct tension tests, friction tests, and direct shear tests. The test results improve the understanding and characterization of the axial force vs. displacement relationship for CIPP movement relative to the host pipe, lining/pipe interface friction, and the effects of geometry, internal pressure, and repeated loading on the axial force vs. relative displacement relationship. The direct tension test results show that the mobilization of axial force is affected by Mode II fracture propagation, friction between the exterior surface of the lining and interior surface of the host pipe, and geometric resistance generated by the relative movement of the lining within a host pipe of variable inside diameter. The most important finding from the direct tension tests is that substantial additional axial forces may be mobilized after debonding as the lining is affected by geometric interference caused by movement through a pipe with variable internal diameter. The test results provide a first-time confirmation of this loading mechanism. The friction tests show that the axial load response is independent of loading rate, with a similar load range and maximum load for the tests conducted at 1 in. (25 mm)/min, 10 in. (250 mm)/min, and 100 in. (2500 mm)/min. The first friction test, done under no pressure, developed larger axial forces due to the greater frictional resistance between the lining and pipe than in a subsequent test under the same testing conditions and geometry. The difference in the axial loads show that over-cleaned field pipes or new ductile iron pipes can have a greater frictional resistance between the lining and pipe than properly cleaned or previously loaded pipes. The most important result from the friction tests involves the influence of internal pressure on axial load response. As the internal pressure increased, the axial load for a given displacement increased linearly. Regressions of axial load vs. internal pressure at the same levels of displacement show a clear linear relationship with similar slopes. The results of the direct shear tests for new ductile iron and field cast iron pipes show a coefficient of friction of 0.61. This value represents the relatively smooth debonded lining surface conditions representative of the CIPP cleaning and lining process for old cast iron water mains. It also represents the interface between the lining and new ductile iron pipe after repeated displacements. The test results show that a coefficient of friction of 0.84 is a good estimate for lining/pipe interfaces that are rough and irregular. Advisors/Committee Members: O'Rourke, Thomas Denis (chair), Stewart, Harry Eaton (committee member).

Subjects/Keywords: Civil engineering; cured-in-place; deformation; pipeline; earthquake

10 more images…

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Mottl, N. L. (2019). Material Characterization and Testing of Cured-in-Place Pipe to Resist Earthquake Related Ground Deformation. (Masters Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/67679

Chicago Manual of Style (16^th Edition):

Mottl, Natalie Lucia. “Material Characterization and Testing of Cured-in-Place Pipe to Resist Earthquake Related Ground Deformation.” 2019. Masters Thesis, Cornell University. Accessed January 24, 2021. http://hdl.handle.net/1813/67679.

MLA Handbook (7^th Edition):

Mottl, Natalie Lucia. “Material Characterization and Testing of Cured-in-Place Pipe to Resist Earthquake Related Ground Deformation.” 2019. Web. 24 Jan 2021.

Vancouver:

Mottl NL. Material Characterization and Testing of Cured-in-Place Pipe to Resist Earthquake Related Ground Deformation. [Internet] [Masters thesis]. Cornell University; 2019. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1813/67679.

Council of Science Editors:

Mottl NL. Material Characterization and Testing of Cured-in-Place Pipe to Resist Earthquake Related Ground Deformation. [Masters Thesis]. Cornell University; 2019. Available from: http://hdl.handle.net/1813/67679

8. Pariya-Ekkasut, Chalermpat. Experimental Evaluation of Ductile Iron Pipeline Response to Earthquake-Induced Ground Deformation.

Degree: PhD, Civil and Environmental Engineering, 2018, Cornell University

URL: http://hdl.handle.net/1813/59351

► This thesis addresses the performance of ductile iron (DI) pipelines with restrained axial slip joints subject to earthquake-induced ground deformation. DI pipelines account for 23%… (more)

▼ This thesis addresses the performance of ductile iron (DI) pipelines with restrained axial slip joints subject to earthquake-induced ground deformation. DI pipelines account for 23% of U.S. water distribution systems (US.EPA, 2013), and have been used extensively for replacing aging cast iron (CI) pipelines. Under earthquake-induced ground deformation a jointed DI pipeline is vulnerable primarily to joint pullout and excessive joint rotation. Improvements in pipeline technology have led to the development of DI pipelines with restrained axial slip joints that move axially and rotate to conform to differential soil movements, but are restrained from pullout without leakage and loss of structural integrity. A series of large-scale experiments was performed on DI pipelines with restrained axial slip joints to characterize tensile strength properties, direct axial compression and tension, moment vs rotation characteristics, soil axial restraint, and performance in response to fault rupture. Large-scale tests were performed primarily on 6-in. (150-mm)-diameter DI pipelines, but also included direct tension and bending tests on 12-in. (300-mm)-diameter DI pipelines. The direct compression tests show either leakage or irrecoverable deformation in the form of large rotation at loads equal to or slightly higher than load consistent with the proportional limit stress of DI pipe. The direct tension tests show that tensile failure of the pipeline depends on the locking mechanism of the joint. Joints that use full circumferential locking rings generate the highest resisting force. Failure and leakage under tension with these features occurred as DI ring shear fracture and bell fracture. In contrast, joints that use locking segments mobilized lower pullout force. Failure and leakage of joints with locking segments occurred as local deformation at the spigot caused by load concentration at the locking segments, allowing the weld bead to slip past the locking segments and cause leakage. Large-scale fault rupture tests provide a comprehensive and detailed understanding of the sequence of joint movements, combined axial pullout and rotation at each joint, and the actual axial forces influenced by longitudinal frictional resistance and axial resistance to movement at the joints. The longitudinal frictional forces are controlled by at-rest (Ko) conditions, which set the initial state of stress along the pipeline near the north and south ends of the split basin, and the conditions of maximum lateral soil reaction during fault rupture, which establish the maximum longitudinal frictional resistance for the pipeline in the vicinity of fault rupture. The joint axial resistance model proposed in this work is obtained from the expression for face resistance of the leading edge of a jacked pipe proposed by Meskele and Stuedlein (2015) from the work of Weber and Hurtz (1981). The model is used to predict the axial resistance from a restrained axial slip joint for DI pipe and the pullout restraints of PVCO and PVC pipelines. The… Advisors/Committee Members: O'Rourke, Thomas Denis (chair), Stewart, Harry Eaton (committee member), Grigoriu, Mircea Dan (committee member).

Subjects/Keywords: Civil engineering; Ductile iron pipe; Fault rupture; Ground deformation; Jointed pipelines; Large-scale experiments; Water distribution systems

…appreciate the financial support provided by Cornell University and the School of Civil and…

10 more images…

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Pariya-Ekkasut, C. (2018). Experimental Evaluation of Ductile Iron Pipeline Response to Earthquake-Induced Ground Deformation. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/59351

Chicago Manual of Style (16^th Edition):

Pariya-Ekkasut, Chalermpat. “Experimental Evaluation of Ductile Iron Pipeline Response to Earthquake-Induced Ground Deformation.” 2018. Doctoral Dissertation, Cornell University. Accessed January 24, 2021. http://hdl.handle.net/1813/59351.

MLA Handbook (7^th Edition):

Pariya-Ekkasut, Chalermpat. “Experimental Evaluation of Ductile Iron Pipeline Response to Earthquake-Induced Ground Deformation.” 2018. Web. 24 Jan 2021.

Vancouver:

Pariya-Ekkasut C. Experimental Evaluation of Ductile Iron Pipeline Response to Earthquake-Induced Ground Deformation. [Internet] [Doctoral dissertation]. Cornell University; 2018. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1813/59351.

Council of Science Editors:

Pariya-Ekkasut C. Experimental Evaluation of Ductile Iron Pipeline Response to Earthquake-Induced Ground Deformation. [Doctoral Dissertation]. Cornell University; 2018. Available from: http://hdl.handle.net/1813/59351

Cornell University

9. Price, Dakota William. EARTHQUAKE PERFORMANCE EVALUATION OF PVC PIPELINES WITH RESTRAINED JOINTS.

Degree: M.S., Civil and Environmental Engineering, Civil and Environmental Engineering, 2018, Cornell University

URL: http://hdl.handle.net/1813/65001

► Full-scale test results to evaluate the earthquake performance of 6-in. (150-mm) PVC pipelines with restrained bell-and-spigot joints under water pressure of at least 80 psi… (more)

Subjects/Keywords: Engineering

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Price, D. W. (2018). EARTHQUAKE PERFORMANCE EVALUATION OF PVC PIPELINES WITH RESTRAINED JOINTS. (Masters Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/65001

Chicago Manual of Style (16^th Edition):

Price, Dakota William. “EARTHQUAKE PERFORMANCE EVALUATION OF PVC PIPELINES WITH RESTRAINED JOINTS.” 2018. Masters Thesis, Cornell University. Accessed January 24, 2021. http://hdl.handle.net/1813/65001.

MLA Handbook (7^th Edition):

Price, Dakota William. “EARTHQUAKE PERFORMANCE EVALUATION OF PVC PIPELINES WITH RESTRAINED JOINTS.” 2018. Web. 24 Jan 2021.

Vancouver:

Price DW. EARTHQUAKE PERFORMANCE EVALUATION OF PVC PIPELINES WITH RESTRAINED JOINTS. [Internet] [Masters thesis]. Cornell University; 2018. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1813/65001.

Council of Science Editors:

Price DW. EARTHQUAKE PERFORMANCE EVALUATION OF PVC PIPELINES WITH RESTRAINED JOINTS. [Masters Thesis]. Cornell University; 2018. Available from: http://hdl.handle.net/1813/65001

Cornell University

10. Reilly, Allison. Game Theory Based Identification Of Facility Use Prohibitions For The Movement Of Hazardous Materials Under Terrorist Threat.

Degree: PhD, Civil and Environmental Engineering, 2011, Cornell University

URL: http://hdl.handle.net/1813/29193

► The modeling tools that have been developed over the last 25 years for the identification of routes for hazmat shipments emphasize the tradeoffs between cost… (more)

Subjects/Keywords: hazardous materials; routing; game theory

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Reilly, A. (2011). Game Theory Based Identification Of Facility Use Prohibitions For The Movement Of Hazardous Materials Under Terrorist Threat. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/29193

Chicago Manual of Style (16^th Edition):

Reilly, Allison. “Game Theory Based Identification Of Facility Use Prohibitions For The Movement Of Hazardous Materials Under Terrorist Threat.” 2011. Doctoral Dissertation, Cornell University. Accessed January 24, 2021. http://hdl.handle.net/1813/29193.

MLA Handbook (7^th Edition):

Reilly, Allison. “Game Theory Based Identification Of Facility Use Prohibitions For The Movement Of Hazardous Materials Under Terrorist Threat.” 2011. Web. 24 Jan 2021.

Vancouver:

Reilly A. Game Theory Based Identification Of Facility Use Prohibitions For The Movement Of Hazardous Materials Under Terrorist Threat. [Internet] [Doctoral dissertation]. Cornell University; 2011. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1813/29193.

Council of Science Editors:

Reilly A. Game Theory Based Identification Of Facility Use Prohibitions For The Movement Of Hazardous Materials Under Terrorist Threat. [Doctoral Dissertation]. Cornell University; 2011. Available from: http://hdl.handle.net/1813/29193

Cornell University

11. Romero, Natalia. Investment Planning For Electric Power Systems To Mitigate Extreme Events.

Degree: PhD, Civil and Environmental Engineering, 2012, Cornell University

URL: http://hdl.handle.net/1813/31471

► My research has focused on two inter-related questions. First, how do we model the impacts of terrorism and earthquake events on electric power systems? Second,… (more)

▼ My research has focused on two inter-related questions. First, how do we model the impacts of terrorism and earthquake events on electric power systems? Second, how might we optimize investments in these systems when there are limited resources? For intentional attack we model the interaction between the offender and the operator of the network where both parties have limited budgets and behave in their own selfinterest. The problem was formulated as a multi-level mixed-integer programming problem and we implemented a Tabu search with an embedded greedy algorithm to find the optimum defense strategy. We model the regional earthquake hazard using a four step process that included an optimization problem to select a small collection of events from a candidate set, including a probability of occurrence for each event that matches the hazard. Since electric power systems are spatially distributed, their performance is driven by the joint distribution for damage of the components. Hence we estimated this distribution by constructing a collection of consequence scenarios for each earthquake scenario, where each consequence scenario identifies the level of damage to each component. For each consequence scenario, we used an economic dispatch model to predict the load shed and repair costs throughout the repair process. We expanded the analysis of the power network under the seismic risk by modeling the additional impact of cascading outages and the consequences on the air passenger transportation system due to the interdependency of both networks. We formulated the problem of selecting seismic mitigation strategies to increase resilience of electric power system to earthquake hazards as a two-stage stochastic program. We develop a custom solution procedure which we show to be computationally effective for extremely large problem instances. Advisors/Committee Members: Nozick, Linda K. (chair), Topaloglu, Huseyin (committee member), O'Rourke, Thomas Denis (committee member).

Subjects/Keywords: Electric Power; Decision Support System; Earthquake

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Romero, N. (2012). Investment Planning For Electric Power Systems To Mitigate Extreme Events. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/31471

Chicago Manual of Style (16^th Edition):

Romero, Natalia. “Investment Planning For Electric Power Systems To Mitigate Extreme Events.” 2012. Doctoral Dissertation, Cornell University. Accessed January 24, 2021. http://hdl.handle.net/1813/31471.

MLA Handbook (7^th Edition):

Romero, Natalia. “Investment Planning For Electric Power Systems To Mitigate Extreme Events.” 2012. Web. 24 Jan 2021.

Vancouver:

Romero N. Investment Planning For Electric Power Systems To Mitigate Extreme Events. [Internet] [Doctoral dissertation]. Cornell University; 2012. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1813/31471.

Council of Science Editors:

Romero N. Investment Planning For Electric Power Systems To Mitigate Extreme Events. [Doctoral Dissertation]. Cornell University; 2012. Available from: http://hdl.handle.net/1813/31471

Cornell University

12. Wham, Brad. Jointed Pipeline Response To Large Ground Movements.

Degree: PhD, Civil and Environmental Engineering, 2016, Cornell University

URL: http://hdl.handle.net/1813/43567

► This thesis addresses the performance of jointed pipelines subject to ground deformations triggered at a large scale by earthquakes and a construction-related scale by tunneling.… (more)

▼ This thesis addresses the performance of jointed pipelines subject to ground deformations triggered at a large scale by earthquakes and a construction-related scale by tunneling. Understanding and quantifying jointed pipeline response at these scales allows for better design, operational management, and risk assessment of underground infrastructure, where cast iron (CI) and ductile iron (DI) pipelines in the U.S. account for approximately 75% of water distribution systems. The thesis covers the response of DI and molecularly oriented polyvinyl chloride (PVCO) pipelines to earthquaketriggered soil movement as well as CI and DI pipeline response to tunneling. A series of specially designed four-point bending experiments and 3D finite-element (FE) simulations were performed to characterize DI push-on joints commonly used in water distribution systems to develop a relationship between the rotation and axial pullout at both metal binding and first leakage. The results of uniaxial tension and onedimensional compression tests on the elastomeric gaskets in DI push-on joints were implemented in numerical models that show joint leakage to be independent of load path, with a unique pressure boundary that predicts leakage for many combinations of axial pullout and rotation. The increased circumferential strength, reduced pipe wall thickness, and enhanced cross-sectional flexibility of PVCO pipelines was evaluated through the characterization of PVCO material properties, axial joint tension and compression tests, four-point bending tests, and a full-scale fault rupture experiment. A nominal 150-mm (6-in.)diameter PVCO pipeline is able to accommodate significant fault movement through axial tensile and bending strains in the pipe in combination with modest levels of axial slip at the restrained joints. Relatively large levels of axial strain in the low modulus PVCO material, which varies between 1% and 2% at pipeline failure, are able to sustain substantial extension and compression from ground movements. Soil/pipeline interaction modeling was performed for vertical and horizontal ground movements caused by tunneling in jointed CI and DI pipelines perpendicular to the tunnel centerline that (1) extend beyond the width of the settlement profile and (2) connect through 90° tees with a pipeline parallel to the tunnel. The modeling incorporates the results of large-scale laboratory tests. Guidance is provided for design and the identification before tunneling of potential difficulties. In particular, CI tees are at high risk when subject to tunneling induced soil movement, whereas DI pipelines and tees have sufficient capacity to accommodate high levels of tunneling related ground deformation. iv Advisors/Committee Members: O'Rourke,Thomas Denis (chair), Stewart,Harry Eaton (committee member), Ingraffea,Anthony R (committee member).

Subjects/Keywords: pipelines, pipe joints; ductile iron pipe, PVCO pipe; tunneling ground deformation

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Wham, B. (2016). Jointed Pipeline Response To Large Ground Movements. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/43567

Chicago Manual of Style (16^th Edition):

Wham, Brad. “Jointed Pipeline Response To Large Ground Movements.” 2016. Doctoral Dissertation, Cornell University. Accessed January 24, 2021. http://hdl.handle.net/1813/43567.

MLA Handbook (7^th Edition):

Wham, Brad. “Jointed Pipeline Response To Large Ground Movements.” 2016. Web. 24 Jan 2021.

Vancouver:

Wham B. Jointed Pipeline Response To Large Ground Movements. [Internet] [Doctoral dissertation]. Cornell University; 2016. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1813/43567.

Council of Science Editors:

Wham B. Jointed Pipeline Response To Large Ground Movements. [Doctoral Dissertation]. Cornell University; 2016. Available from: http://hdl.handle.net/1813/43567

Open Access Theses and Dissertations