Design methods for thrust restraint of PCCP using tied joints utilized by some pipeline designers prior to 2008 resulted in nonconservative designs resulting in failures the real root cause of which was not known and was often incorrectly related to pressure surges in the pipeline, corrosion, or other factors. The purpose of this paper is to present a comparison of historical and current thrust restraint methods of prestressed concrete cylinder pipe (PCCP) using tied joints, to identify methods to address deficient thrust restraint, and to identify future work to incorporate the effect of all loads that impact the thrust forces and bending moments in the pipe, such as temperature differentials, Poisson’s effect, and seismic strains in the design of pipelines against thrust near bends and fittings.
Past, Present, and Future of Thrust Restraint of PCCP Pipelines with Tied Joints
Pipelines 2022 ; 2022 ; Indianapolis, Indiana
Pipelines 2022 ; 259-266
2022-07-28
Conference paper
Electronic Resource
English
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