高速铁路双线简支梁桥空间振动响应分析

研究高速铁路双线简支梁桥的空间振动响应．建立了考虑双线简支梁在车辆蛇行和单线行车时的偏心荷载作用下车桥系统空间耦联作用的振动力学分析模型，以２０ｍ和４８ｍ简支梁桥为例，在计算机上模拟列车过桥的全过程，通过分析动力响应，得出了一些有工程意义的结论．

Spatial Vibration Response Analysis of High-Speed Railway Double-Track Bridge

Dealt with the responses of spatial vibration of a simply supported beams of a double track bridge on high speed railway. A spatial coupled dynamic model was presented for the train bridge system under centrifugal loadas. With only one train running on the bridge. With 20m beamsas and 48m beams as examples, the whole histories of a train passing through the bridges were simulated on the computer. Some significant results were obtained by analysing the dynamic responses.