中文摘要：

采用数值模拟方法对风-车-桥耦合系统的车桥气动特性进行分析研究，模拟计算了不同工况下车辆、桥梁的气动力系数。分析了车桥间相互的气动影响．研究结果表明．车桥耦合系统与桥梁和车辆各自单体相比较，气动力系数差异较大，故建议进行风-车-桥系统耦合振动分析时，车桥气动力系数应考虑车桥间的气动影响．

英文摘要：

The aerodynamic characteristics of the wind-vehicle-bridge system are investigated using numerical simulation method in this paper. The aerodynamics characteristics of the vehicle and the bridge section at different cases are simulated and the aerodynamic influence between the vehicle and the bridge is analyzed. The results show that the aerodynamic coefficients of the vehicle and bridge for the coupled vehiele-brdige system are different from those of the vehicle and bridge for the single vehicle system and the single bridge system. So the aerodynamic influence between the vehicle and the bridge should be considered for the vibration analysis of the coupled wind-vehicle bridge system.