TRAIN-BRIDGE INTERACTION ANALYSIS OF HEAVY LOAD HIGH SPEED RAILWAY

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TRAIN-BRIDGE INTERACTION ANALYSIS OF HEAVY LOAD HIGH SPEED RAILWAY

Abstract

For analyzing the dynamic interaction problem of a train passing a railway bridge with high speed, a substructure approach is presented taking into account the influence of rail irregularities. Modal analysis provides a description of the finite element bridge model in modal space with a small number of degrees of freedom. The train is modeled as a sequence of multi body mass–spring–damper systems. A linear interaction model in the context of a component mode synthesis method (CMS) is used for coupling the two substructures. In this study, the dynamic response of a single-span steel bridge subjected to a high-speed train is analyzed showing the efficiency of the proposed approach. The results of this study demonstrate the importance of considering rail irregularities for a reliable prediction of the acceleration response.

Author

VISHNU K.R NAVANEETH RAJAGOPAL

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International Journal of Advanced
Science and Engineering Research

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