A simplified analysis model for determining the seismic response of buried steel pipes at strike-slip fault crossings

Uçkan, Eren; Akbaş, Bülent; Shen, Jay; Rou, W.; Paolacci, Fabrizio; O’Rourke, Michael

doi:10.1016/j.soildyn.2015.03.001

Cited by 67 publications

(27 citation statements)

References 21 publications

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“…Usually in a reliability analysis the use of refined computational techniques for the assessment or retrofit of structures or systems ( [7,8,3,28,30] is not recommended. Analytical procedures are too complex to be used for the definition of damage so that simpler fragility functions are used instead.…”

Section: Fragility Of Componentsmentioning

confidence: 99%

Reliability Analysis of Urban Water Systems Under Seismic Action

Rasulo¹

2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Section: Fragility Of Componentsmentioning

confidence: 99%

Reliability Analysis of Urban Water Systems Under Seismic Action

Rasulo¹

2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…Joshi et al conducted parametric analysis on beam buckling behavior of steel pipe at reverse fault crossing [19]. Uckan et al proposed a simplified model to derive the response of curved pipeline at strike-slip fault crossing [20]. Liu et al developed a prediction model on peak pipe compressive strain based on the numerical results and nonlinear regression method [21].…”

Section: Introductionmentioning

confidence: 99%

Local Buckling Behavior and Plastic Deformation Capacity of High-Strength Pipe at Strike-Slip Fault Crossing

Liu

Zhang

Wang

et al. 2017

Metals

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Abstract:As a typical hazard threat for buried pipelines, an active fault can induce large plastic deformation in a pipe, leading to rupture failure. The mechanical behavior of high-strength X80 pipeline subjected to strike-slip fault displacements was investigated in detail in the presented study with parametric analysis performed by the finite element model, which simulates pipe and soil constraints on pipe by shell and nonlinear spring elements respectively. Accuracy of the numerical model was validated by previous full-scale experimental results. Insight of local buckling response of high-strength pipe under compressive strike-slip fault was revealed. Effects of the pipe-fault intersection angle, pipe operation pressure, pipe wall thickness, soil parameters and pipe buried depth on critical section axial force in buckled area, critical fault displacement, critical compressive strain and post buckling response were elucidated comprehensively. In addition, feasibility of some common buckling failure criteria (i.e., the CSA Z662 model proposed by Canadian Standard association, the UOA model proposed by University of Alberta and the CRES-GB50470 model proposed by Center of Reliable Energy System) was discussed by comparing with numerical results. This study can be referenced for performance-based design and assessment of buried high-strength pipe in geo-hazard areas.

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“…They concluded that the critical strain in displacement occurs about two Place of the diameter of the pipe. The critical displacement means a displacement that is formed in the plastic hinges in pipe [20].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Response of Buried Steel Pipelines Subjected to the Strike-slip Fault Displacement

Oghabi

Khoshvatan

Marto³

2017

cej

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In this paper, the response of buried steel pipeline subjected to the strike-slip fault displacement is studied. This study aimed to identify the seismic fault under the pipe at the intersection of large displacement (up to 3 meter fault displacement) and identify failure modes in the pipe. Innovation studies the effect of thickness ratio of the diameter of the pipe failure modes of the fault displacement. The nonlinear finite element method analysis was conducted. By using ABAQUS software, nonlinear finite element analysis was carried out on the pipeline under fault displacement. Numerical modelling aimed at obtaining the amount of displacement corresponding to the nonlinear behaviour in the pipeline, as well as identifying failure modes pipes in displacement from 0.2 to 3 meter in diameter to thickness ratio, taking into account the impact of the pipeline. The results showed the nonlinear behaviour of the displacement 57.5 cm pipeline damage starts and the displacement of 1 meter buckling occurs in pipes. The displacement of 1 meter fault, failure mode is local buckling pipe, and displacement and deformation of the pipe is 1 meter looks like the letter S. The displacement of 1.5 meter high (3 meter) failure mode tube is wrinkling. And deformation of the pipe in the fault displacement of 1.5 meter, like the letter Z. With the increase in displacement from 1.5 meter to high wrinkling occurs in pipes and up to 3 meter displacement continues. Plastic strain in the fault displacement of 80 cm in diameter to thickness ratio of 112 and 96 occurs, Plastic strain ratio of diameter to thickness of 86 does not occur. Reduction in the diameter of the thickness has a positive impact on reducing plastic strain in the pipe.

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A simplified analysis model for determining the seismic response of buried steel pipes at strike-slip fault crossings

Cited by 67 publications

References 21 publications

Reliability Analysis of Urban Water Systems Under Seismic Action

Reliability Analysis of Urban Water Systems Under Seismic Action

Local Buckling Behavior and Plastic Deformation Capacity of High-Strength Pipe at Strike-Slip Fault Crossing

Evaluation of the Response of Buried Steel Pipelines Subjected to the Strike-slip Fault Displacement

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