当高速铁路桥梁通过海峡时，桥梁除了受到列车荷载作用以外，还将受到风荷载及强风掀起的巨浪的作用，当风、浪共同作用时，风场会由于浪的存在而产生一定的改变，两者之间在强度、方向以及频谱等方面具有复杂的相关性，对跨海大桥的作用具有强烈的动态特性、随机性和耦合性，必须同时考虑风、浪的共同作用。因此，车桥耦合振动特性必然因风、波浪荷载的参与而发生改变，本项目将考虑风荷载以及强风掀起的巨浪的相关耦合性，用分离涡模拟方法（DES）模拟其对跨海大桥的共同作用，基于ALE（任意拉格朗日-欧拉方法）的网格运动算法对风浪与桥梁的流固耦合进行求解，将时程分析计算结果作为一种随机性虚拟激励输入到车桥系统中，并建立风浪-车-桥系统耦合振动模型，依据风浪-车-桥系统耦合振动的动力响应并综合国内外的评价标准，对高速列车走行性进行分析，为高速铁路跨海大桥的设计或者已建高速铁路跨海大桥的加固（或鉴定）提供一些参考。

When a high-speed railway bridge is built up across the straits, the bridge will be under the action of strong wind loads and wave loads including the train loads. The comfort and stability can hardly be satisfied because of the heavy train loads and the strong dynamic impact effect. Especially while the bridges across the straits, the train running on the bridges will be under the action of the strong wind loads and wave loads. Then the responses of the bridge will be induced by the strong wind loads and wave loads. The induced responses of bridge will bring some exciting function for the train. Meanwhile the action of the wind loads and wave loads will be affected by the induced responses of the bridge. Due to wind loads and wave loads contribute to dynamic responses of the bridge dependently, the coupling action of wind wave and bridge must be considered. While the smoothness of rail is influenced by the large dynamic responses of the bridge, the structure will be heavily impacted. And the passengers’ comfort will be greatly reduced. If the performance of flatness and smoothness of track can not be kept, the running safety will be hardly guaranteed. Therefore, the characteristic of coupled vibration of train-bridge system will be changed due to the influence of the wind loads and wave loads. Then numerical technology is used to simulate the coupling action of wind wave and bridge. And ALE(Arbitrary Lagrangian Eulerian) method is adopted to solve fluid structure interaction. The 3D finite element model of wind wave-train-bridge system is simulated. Then the train and bridge responses of the wind wave-train-bridge system are analyzed. In summarization of the literatures and references about evaluation criteria in domestic and abroad, suggestions are given for providing a reference for design and construction of high-speed railway bridge across the straits.