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The modeling and vibration analysis of the train-bridge interaction for a long span railway bridge with four line
Pages: 497-506
Year: Issue:  4
Journal: Journal of Vibration Engineering

Keyword:  the large span bridges with multiple-track linetrain-bridge interactionreal bridge experimentspatial vibrationrigid contact relationship;
Abstract: 以某四线大桥为背景,由实测结构模态参数结合设计相关资料,建立了桥梁基准有限元模型.然后基于此模型,由轮轨法向刚性接触关系,采用模态叠加法建立了车-桥整体系统运动方程,并结合实桥通车实验和数值计算进行对比分析,验证了模型的正确性.最后,开展了多种工况下的车辆-桥梁耦合振动分析计算,对桥梁和车辆的动力响应以及列车运行安全性和平稳性进行了分析评价,得出了一些有工程意义的结论.
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