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主要研究脉动风与列车荷载同时作用下斜拉桥的横向振动问题。首先建立了横风作用下并考虑了轨道不平顺和车辆蛇行的车桥系统动力分析模型，推导了体系平衡方程组，编制了有关的计算机程序；根据Ｄａｒｖｅｎｐｏｒｔ风速功率谱模拟产生脉动风样本，并将其作为系统的随机激励，在计算机上模拟列车过桥的全过程，按不同车速计算了桥梁跨中和桥塔的横向位移、加速度以及桥上车辆的横向振动加速度响应。以一铁路斜拉桥为例，着重讨论了在正常使用极限状态下当风速小于３０ｍ／ｓ时的车桥系统动力响应的一些问题。
Mainly studying the lateral vibration of cable-stayed bridge under the simultaneous action of pulsating wind and train load. Firstly, the dynamic analysis model of the axle system considering the track irregularity and the meandering of the vehicle was established, the system equilibrium equations were deduced, and the relevant computer programs were compiled. The fluctuating wind samples were generated according to Darvenport wind power spectrum simulation. It is used as a random excitation of the system to simulate the whole process of train crossing the bridge on the computer. The lateral displacement and acceleration of the bridge and bridge tower at different speeds are calculated and the transverse vibration acceleration responses of the bridge on the bridge are calculated. Taking a railway cable-stayed bridge as an example, some problems of the dynamic response of the axle system under wind speed less than 30m / s under the normal operating condition are emphatically discussed.