3D analysis of high-speed trains moving on bridges with foundation settlements

研究成果: Article同行評審

20 引文 斯高帕斯(Scopus)

摘要

This paper investigates the derailment of trains moving on multi-span simply supported bridges with foundation settlements or rotations. Rail irregularities, train-track-bridge interactions, and wheel/rail separations were considered in the three-dimensional nonlinear finite element analysis. A moving spring-mass with separation and contact modes was used to validate the proposed finite element model. In the parametric study, finite element results indicate that foundation settlements or rotations cause sharp displacements between two simply supported girders, which generate large train derailment coefficients. The train derailment coefficients rise with increased train speed, and they greatly increase at a critical speed. The time history displacements of a train obviously contain a jump when it passes a location with foundation settlements or rotations, so a warning system can be established using this measurement.

原文English
頁(從 - 到)281-291
頁數11
期刊Archive of Applied Mechanics
83
發行號2
DOIs
出版狀態Published - 2013 二月 1

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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