Behavior of Jointed Ductile Iron Pipelines

Singhal, A.C.

doi:10.1061/(asce)0733-947x(1984)110:2(235)

Cited by 31 publications

(9 citation statements)

References 2 publications

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“…These pipe segments typically can fail in several ways: excessive bending deformations of the pipe barrel, excessive rotation at a joint, or pullout at a joint (Singhal, 1984). Segmented pipe with somewhat rigid caulking, such as portland cement or lead, cannot tolerate much relative movement before leakage occurs.…”

Section: Segmented Pipelinesmentioning

confidence: 99%

Chapter A. The Loma Prieta, California, Earthquake of October 17, 1989 - Lifelines

Schiff¹

1998

Professional Paper

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Section: Segmented Pipelinesmentioning

confidence: 99%

Chapter A. The Loma Prieta, California, Earthquake of October 17, 1989 - Lifelines

Schiff¹

1998

Professional Paper

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“…For the interaction analysis to be of any practical use, equal importance should be given to adequately defining the strength and deformation properties of the pipelines, their joints and the surrounding soil. Some scholars [23][24][25][26][27][28] consider the jointed pipeline as a continuous pipeline with additional local rotations at the joints. Liu et al [29] provide a mathematical model to estimate the mechanical behaviors of the existing tunnels with bending stiffness and shearing stiffness reduction at the movement joints.…”

Section: Introductionmentioning

confidence: 99%

Effects of New Tunnelling on a Buried Pipeline with Joints and Its Detachment

Liu

Zhang

et al. 2022

Applied Sciences

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The interactions between the buried pipeline and tunnelling-induced ground movement are studied in this paper, in which the jointed pipeline, Pasternak foundation, and the detachment are considered. A mathematical model using the pulse function is provided to simplify the jointed pipeline to a continuous pipeline with additional local rotations. The determination of detachment is used by the usual iteration method. The finite difference method is utilized to obtain the numerical results. The results calculated by our proposed method agree with the experimental data of centrifuge tests and are close to those obtained by the other methods. The deflection and bending moment of the jointed pipeline can be predicted reasonably, as well as its detachment location. Parametric analyses about the main influencing factors are carried out. The stiffness reduction factor is significant to the discontinuous behavior of the jointed pipeline. During the parametric analyses, the detachment beneath the jointed pipeline sometimes happens and sometimes does not. The responses of the jointed pipeline and its detachment require priority attention.

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“…Physical-based stochastic ground motion was generated and input to pipe networks to generate stochastic seismic responses. Laboratory or large-scale field tests were supplemented to explore the mechanism of soil-structure interaction under dynamic loading [17][18][19][20]. Wang et al [19] provided a detailed summary on the laboratory and large-scale field tests.…”

Section: Introductionmentioning

confidence: 99%

Seismic Analysis of Connections of Buried Continuous Pipelines

Liu

Huang

Wang

et al. 2020

Advances in Civil Engineering

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Buried pipelines serve as a critical component of lifeline systems, such as water and gas supply. They are interconnected to form a network to transport utilities. The connections change the geometry and stiffness of pipelines and impact the seismic response of the pipelines. This paper investigates the influence of connections on the seismic response of buried continuous steel trunk lines. A finite element model is introduced for analyzing the seismic response of buried pipeline networks. The seismic response of continuous steel pipelines with different connections, including cruciform and T-, K-, L-, and Y-shaped, is analyzed. The impact of site class, pipe diameter, branch angle, and angle of wave incidence on the response of pipe connections is explored. An influence coefficient defined to characterize the strain amplification at the connections is proposed for different forms of connections. Engineering measures to reduce the strain amplification at connections are suggested.

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Behavior of Jointed Ductile Iron Pipelines

Cited by 31 publications

References 2 publications

Chapter A. The Loma Prieta, California, Earthquake of October 17, 1989 - Lifelines

Chapter A. The Loma Prieta, California, Earthquake of October 17, 1989 - Lifelines

Effects of New Tunnelling on a Buried Pipeline with Joints and Its Detachment

Seismic Analysis of Connections of Buried Continuous Pipelines

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