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Adoption of the response spectra method for calculating the dynamic response of railway bridges

Author(s):

Medium: journal article
Language(s): English
Published in: Steel Construction, , n. 4, v. 3
Page(s): 212-217
DOI: 10.1002/stco.201010027
Abstract:

This paper introduces a simplified method for calculating the dynamic response of railway bridges under train service loads. Response spectrum analysis, which has proved itself in structural dynamics, has been adopted for the given problem. If essential parameters such as the natural frequency, mass, span and damping of a bridge are known, the maximum response quantities can be looked up in a diagram. Preparation of the response spectra diagrams is computationally intensive but they do provide an easy and quick way of obtaining accurate results. This method is exemplified for single-span bridges and the load models defined in the Eurocode. However, it is possible to expand the theory to more complex bridge systems and other load models without difficulty. With the aid of this method, the maximum dynamic response of a bridge under moving loads can be calculated in an efficient and convenient way with the accuracy required by the current design codes.

Keywords:
modal analysis railroad bridge dynamics vehicle-bridge interaction dynamics simplified methods of calculation Rayleigh-Ritz analysis response spectra high-speed railways
Available from: Refer to publisher
Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1002/stco.201010027.
  • About this
    data sheet
  • Reference-ID
    10064033
  • Published on:
    11/02/2011
  • Last updated on:
    13/08/2014
 
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