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《Structural Engineers》 2009-03
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Comparison of Influence of Different Models for Girders on Structural Seismic Responses

WANG Yuanyuan* WANG Zhiqiang WEI Hongyi(Department of Bridge Engineering,Tongji University,Shanghai 200092,China)  
The influence of different models for girders of superstructure on structural seismic responses was analyzed in this paper taking a typical viaduct as an example.The spine beam model and the shell element model were used to simalate the girder structure.The seismic responses of the structure were analysed with the two different models by using software sap2000.The result indicates that for bridges with long cantilever cap beam,the seismic responses of cap beam and the column transverse ductile flexural responses are sensitive to the finite element model of the girder.It is suggested that for this type bridge,the distributing of the stiffness and the mass of the girder should be modeled rationally.
【Fund】: 国家自然科学基金资助项目(50508032)
【CateGory Index】: U442.55
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