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首页> 外文会议>4th International Conference on Structural Dynamics Vol.1, Sep 2-5, 2002, Munich, Germany >Dynamic Rolling Stock Analysis of a Railway Bridge with Single Span Precast Box Girders
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Dynamic Rolling Stock Analysis of a Railway Bridge with Single Span Precast Box Girders

机译：单跨预制箱梁铁路桥的动态机车车辆分析

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摘要

In the present investigation the dynamic effects of a railway bridge that is part of the Taiwan High Speed Rail Project (THSR) due to the operation of the high speed trains will be studied. The bridge has a total length of about 67 km and consists in the major part of single span precast box girders with a length of 30 and 35 meters. For the computations a 3D finite element model with shell elements was used for the box girders. Before the time domain analysis was carried out, the natural periods of the structure were calculated in order to determine critical train speeds with a maximum dynamic response of the bridge. For the time domain analysis the application of the time dependent high speed train loads on the box girders will be shown. The results of the analysis prove that all design criteria concerning permissible displacements and rotations are met and a safe, comfortable train operation is guaranteed.
机译：在本次调查中，将研究台湾高速铁路项目（THSR）的一部分铁路桥由于高速列车的运行而产生的动力影响。这座桥的总长度约为67公里，主要由30米和35米长的单跨预制箱梁组成。为了进行计算，将带有壳单元的3D有限元模型用于箱梁。在进行时域分析之前，计算结构的自然周期，以便确定具有最大桥梁动态响应的临界列车速度。对于时域分析，将显示随时间变化的高速列车荷载在箱形梁上的应用。分析结果证明，符合有关允许的位移和旋转的所有设计标准，并保证了安全，舒适的列车运行。

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