Large Axial Deformation Performance of Steel Pipeline Designed for Fault Crossings

Wham, Brad P.; Pariya-Ekkasut, Chalermpat; Argyrou, Christina; Stack, Margaret; O'Rourke, T. D.; Stewart, Harry E.; Nakazono, H.; Hasegawa, Norio

doi:10.1061/9780784480878.010

Cited by 9 publications

(3 citation statements)

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“…ese theories are not based on internal pressure. Based on the plastic theory, numerical solutions for stress and strain components are obtained for normal pipe pressures by Hu and Yuan [25]. e internal stress and strain distribution of the pipe can be obtained by formulas.…”

Section: Critical Buckling Stress Caused By Bendingmentioning

confidence: 99%

“…Using a wave connection can be a good solution to solve these problems. A recent wave connection solution by Packer Wham et al [25] has been proposed, but this approach only refers to the study of large axial displacements. In the present paper, after examining different dimensions of the effect of wave connection on improving the performance of buried pipes cross-slip fault, for the first time, the geometric characteristics including doubling the wave connection have been improved [26].…”

Section: Introductionmentioning

confidence: 99%

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Numerical Evaluation on Improvement Performance of Waved Connection to Reduce Damage on Buried Gas Pipeline

Kolbadi

Hassani

Safi

2020

Shock and Vibration

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One of the major challenges for the oil and gas industry is to keep buried metal pipes safe from faulting. This paper discusses about a solution to keep buried pipes safe. In this study, after examining the different dimensions of the effect of wave connection on improving the performance of buried metal pipes, by changing the geometric shape of the wave connection such as doubling it, the behavior of the pipe is greatly improved. Waved connections, by their local deformation, create a rotational joint in a limited area so that other parts of the pipe remain intact. In this paper, the behavior of buried pipes due to slip direction fault displacement by modelling with Abacus software version 2017 and selection of 4-node shell element and 8-node shell element have been used for pipe and soil modelling, respectively. In this paper, by comparing to a single waved connection with a double waved connection, the performance of the pipe due to the faulting phenomenon was evaluated. The results show the improvement of the excellent performance of the double joint by reducing the plastic strain values. In addition to increasing the ductility of the pipe, the double connection has been able to reduce the strain values by about 50% compared to the single connection. In general, this paper shows that the use of wave connections can significantly increase the level of safety of buried gas pipelines without increasing the cost.

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Section: Critical Buckling Stress Caused By Bendingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical Evaluation on Improvement Performance of Waved Connection to Reduce Damage on Buried Gas Pipeline

Kolbadi

Hassani

Safi

2020

Shock and Vibration

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“…To evaluate the seismic performance of buried piping, tensile, compressive, and bending tests have been conducted on piping with various specifications. In particular, various studies have been conducted recently to analyze the seismic behavior of piping systems considering buried conditions [9][10][11][12][13]. Research on piping that is installed in structures has also been conducted in various industrial fields.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on Seismic Performance Evaluation of Multi-Ply Bellows Type Expansion Joint for Piping Systems

et al. 2022

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Piping systems are a representative social infrastructure to provide oil, gas, and water. Damage to piping systems may cause serious consequences, such as fire, water outage, and environmental pollution. Therefore, piping systems need to be protected from natural disasters, such as earthquakes. Earthquakes may cause deformation that exceeds piping design criteria. For example, large relative displacements and liquefaction of the ground resulting in loss of strength and ground subsidence, and the side-sway of primary structures subjected to a strong ground motion may cause critical damage to piping systems. Therefore, expansion joints to maintain flexibility can be applied to locations where excessive deformation is expected to improve the seismic performance of piping systems. Metal bellows, a type of expansion joints, are flexible, so they are highly durable against deformation and fatigue loads. This indicates that metal bellows can be used as seismic separation joints for piping. In this study, experimental research was conducted to analyze the seismic performance of multi-ply bellows type expansion joints, a type of metal bellows. Monotonic loading tests and cyclic loading tests were conducted on 2-ply bellows and 3-ply bellows, and the results were compared. In the cyclic loading tests, multi-step increasing amplitude cyclic loading, which used the displacement history amplified in stages, and constant amplitude cycling loading with various magnitudes were considered. The test results showed no significant difference in bending performance for monotonic loading between the two types of multi-ply bellows. The 3-ply bellows, however, showed higher performance for low-cycle fatigue than 2-ply bellows.

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Buried Continuous and Segmented Pipelines Subjected to Longitudinal Permanent Ground Deformation

Wham

Davis²

2019

J. Pipeline Syst. Eng. Pract.

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Large Axial Deformation Performance of Steel Pipeline Designed for Fault Crossings

Cited by 9 publications

References 0 publications

Numerical Evaluation on Improvement Performance of Waved Connection to Reduce Damage on Buried Gas Pipeline

Numerical Evaluation on Improvement Performance of Waved Connection to Reduce Damage on Buried Gas Pipeline

An Experimental Study on Seismic Performance Evaluation of Multi-Ply Bellows Type Expansion Joint for Piping Systems

Buried Continuous and Segmented Pipelines Subjected to Longitudinal Permanent Ground Deformation

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