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Advanced Dynamic Finite Element Analysis of a Skew Steel Railway Bridge

Kaliyaperumal, G, Imam, B and Righiniotis, T (2011) Advanced Dynamic Finite Element Analysis of a Skew Steel Railway Bridge Engineering Structures, 33 (1). pp. 181-190.

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The aim of this paper is to present advanced modelling techniques for dynamic analysis of steel railway bridges. Finite element analyses of a case study skew bridge are carried out and the results are compared with available field measurements. Initially, eigenvalue analyses of different models are carried out in order to obtain the fundamental mode shapes and bridge frequencies and to assess the capability of each model to capture the dynamic behaviour of the bridge. Single-span, three-span and full bridge models are investigated with different elements such as shell, beam and combination of these. Very good agreement between the fundamental dynamic properties of the bridge and empirical results is found. Following the eigenvalue analysis, time history dynamic analyses are carried out using the full bridge model. The analyses are carried out for different train speeds and the strain histories are compared with available field measurements. In terms of fatigue assessment, mean stress range values, obtained from the strain histories at selected locations on the bridge members are also compared to each other. The results show that a full bridge model using a combination of beam and shell elements is a reasonably accurate and computationally efficient way of capturing the dynamic behaviour of a bridge and estimating mean stress range for fatigue damage calculations.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Authors :
Kaliyaperumal, G
Imam, B
Righiniotis, T
Date : January 2011
DOI : 10.1016/j.engstruct.2010.10.003
Contributors :
ContributionNameEmailORCID, HA
Uncontrolled Keywords : Steel railway bridge, dynamic analysis, field measurements, frequency, stresses
Additional Information : NOTICE: this is the author’s version of a work that was accepted for publication in Engineering Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Engineering Structures, 33(1), January 2011, DOI 10.1016/j.engstruct.2010.10.003 .
Depositing User : Symplectic Elements
Date Deposited : 16 Dec 2011 12:20
Last Modified : 31 Oct 2017 14:16

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