Numerical techniques for design calculations of longitudinal bending in buried steel pipes subjected to lateral Earth movements.

ABSTRACT: This paper presents simplified finite-element analysis procedures based on geometrical nonlinearity and ductile Mohr-Coulomb-Davis plasticity for analysis of bending behaviour of steel pipes subjected to lateral soil loading. A simple, and easy to implement, user-defined subroutine to represent soil stiffness using the Janbu model is also presented and discussed. The development of a three-dimensional (3D) finite-element model is presented, and its evaluation against experimental measurements is discussed. Data are presented for different burial depths of the pipe, including soil loading on the pipe as well as 3D responses, longitudinal bending deflections and pressure distribution along the pipe. It was shown that numerical analyses which include soil modulus dependency on confining press

SUBMITTER: Almahakeri M 

PROVIDER: S-EPMC6689586 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature