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Simplified assessment of high‐speed train induced bridge vibrations considering shear effects
Author(s) -
Salcher Patrick,
Adam Christoph
Publication year - 2012
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201210089
Subject(s) - bridge (graph theory) , vibration , structural engineering , shear (geology) , engineering , mechanics , geology , materials science , acoustics , physics , composite material , medicine
A novel response spectrum methodology for rapid assessment of the dynamic peak acceleration response of simple railway bridges subjected to high‐speed trains is presented. This methodology is based on non‐dimensional characteristic bridge and train parameters, and on the shear beam theory. The effect of shear deformations should be considered, if the considered bridge is a truss structure. Depending on the train load model, response spectra are derived for each modal coordinate separately as a function of a non‐dimensional speed parameter and the bridge length to wagon length ratio. An estimate of the peak response is found by statistical combination of the individual modal responses applying different rules. (© 2012 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)