Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32607
Title: Dynamic responses of railway suspension bridges under moving trains
Authors: Xia, H
Xu, YL 
Chan, THT
Zakeri, JA
Issue Date: 2007
Source: Scientia Iranica, 2007, v. 14, no. 5, p. 385-394 How to cite?
Journal: Scientia Iranica 
Abstract: This paper describes a numerical simulation technique that is used to investigate a dynamic train-long suspension bridge interaction. A three-dimensional finite element model is used to represent a long suspension bridge. Each vehicle of the train is modeled by a 27-degrees-of-freedom dynamic system, including two bogies with four wheel-sets. By applying a mode superposition technique to the bridge and taking the measured wheel and track irregularities as known quantities, the degrees of freedom of the bridge-train system are significantly reduced and the coupled equations of motion are efficiently solved. The proposed formulation and the associated computer program are then applied to a real long suspension bridge. The dynamic responses of the bridge and the train vehicles are computed and compared with the limited measured data and the results are satisfactory.
URI: http://hdl.handle.net/10397/32607
ISSN: 1026-3098
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