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

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)281-291
Number of pages11
JournalArchive of Applied Mechanics
Volume83
Issue number2
DOIs
Publication statusPublished - 2013 Feb 1

Fingerprint

Settlement of structures
Derailments
Rails
Railroad tracks
Beams and girders
Alarm systems
Wheels
Finite element method

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

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3D analysis of high-speed trains moving on bridges with foundation settlements. / Ju, Shen-Haw.

In: Archive of Applied Mechanics, Vol. 83, No. 2, 01.02.2013, p. 281-291.

Research output: Contribution to journalArticle

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