桥梁车桥耦合振动的简化算法

Simplified Algorithm of Vehicle Bridge Coupling Vibration of Bridge

针对车辆行走引起的车桥耦合现象,采用一种简捷实用的移动车辆荷载模拟方法,将车辆荷载简化成时变三角形荷载进行动态加载。结合文献资料,使用ANSYS软件建立空间有限元模型进行分析,对比结果表明:该方法计算结果与参考文献资料结果均吻合较好,能反应出移动车辆对桥梁产生的影响,可用于工程实际。

Aiming at the vehicle bridge coupling phenomenon caused by the vehicle running, a simple practical moving vehicle load simulation method is used to simplify the vehicle load into the time varying triangular load for dynamic loading. Combined with the literature data, the ANSYS software is used to establish the space finite element model for analysis. The comparison result shows that the calculation result of this method is in good arrangement with the reference data, can reflect the influence of moving vehicle on bridge, and can be used for the engineering practices..