公路桥梁与车辆耦合振动研究现状与发展趋势

STATE-OF-THE-ART REVIEW AND TREND OF STUDIES ON COUPLING VIBRATION FOR VEHICLE AND HIGHWAY BRIDGE SYSTEM

近年来,随着公路交通事业和大跨度桥梁的发展,桥梁在重载、高速公路车辆荷载作用下的振动性能与车辆行车安全控制越来越受到研究者的广泛关注。该文首先简要回顾了公路车桥耦合振动早期的实验研究和古典分析理论,然后,重点针对目前公路桥梁与车辆耦合振动研究现状中的车辆分析模型、桥梁分析模型、路面不平顺及数值计算方法等几个方面,系统归纳和总结了其主要成果;同时,指出目前公路车桥耦合振动研究工作中尚存的有待进一步完善的问题,探讨了今后的研究发展方向。

With the increase of highway transportation and the development of long-span flexible bridges, both the dynamic responses of highway bridges under high-speed and heavy vehicles and the safety control of vehicles have deserved general concerns. Starting with early experimental studies and classical analysis theory, the present primary achievements are summarized roundly according to vehicle analytical model, bridge analytical model, surface roughness of road and numerical method. Finally, some existing problem on vehicle-bridge interaction at present is mentioned and the direction of the further research on vehicle-bridge interaction in the future is pointed out.