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为确定上海长江大桥轨道交通车辆的抗风行车准则,将风、车、桥三者视为一个交互作用、协调工作的耦合动力系统,通过风洞试验测定主梁及车辆的气动参数,采用自主研发的桥梁结构分析软件BANSYS进行风-车-桥耦合动力分析计算。计算结果表明:桥梁和车辆的响应随风速的增大而增大,风荷载对行车的安全性和舒适性有很大影响。当风速小于20m/s时,车辆可按设计车速90km/h运行;当风速在20～30m/s之间时,车速不应大于60km/h;当风速超过30m/s时,应封闭轨道交通。
In order to determine the anti-wind driving guidelines of Shanghai Changjiang River Railway rolling stock, the wind, the vehicle and the bridge are regarded as an interactive and coordinative coupling dynamic system, and the aerodynamic parameters of the main girder and vehicle are measured by wind tunnel test. R & D bridge structural analysis software BANSYS wind-vehicle-bridge coupling dynamic analysis and calculation. The calculation results show that the response of bridge and vehicle increases with the increase of wind speed, and the wind load greatly affects the safety and comfort of driving. When the wind speed is less than 20m / s, the vehicle can run at a designed speed of 90km / h; when the wind speed is between 20 and 30m / s, the speed should not exceed 60km / h; when the wind speed exceeds 30m / s, .