With the development of railway transportation, the traffic load increased continuously and it had the adverse effect on the system of pier-foundation. The quantitative analysis of the load supplied on the top pier is necessary for analyzing the dynamic response of pier-foundation system. Based on the theory of vibration inverse analysis and finite element method, the paper identified the dynamical load supplied on the top pier in vertical and the transverse direction. Combined with the vibration and acceleration history measured by the field test in Xiaolinhe Bridge, the vertical and transverse direction vibration-load history curves were calculated when the train speeds were 153 km/h and 206 km/h respectively. The results indicated that the amplitude of dynamic load increased with the higher speed of train.
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机译：随着铁路运输的发展，交通负荷连续增加，它对码头基础系统产生了不利影响。 在顶部码头上提供的负载的定量分析是分析码头基础系统的动态响应所必需的。 基于振动逆分析和有限元方法的理论，纸张识别在垂直和横向上的顶部码头上提供的动态负荷。 结合通过小林桥的现场试验测量的振动和加速度历史，当火车速度分别为153 km / h和206 km / h时，计算垂直和横向振动负荷曲线。 结果表明，动态负荷的幅度随着较高的火车速度而增加。
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