目前我国公路柔性桥梁以及巨型载重卡车日趋发展,桥梁结构的动力问题尤其是制动力的研究,显然应该提到日程上来。我国铁路桥梁已在这方面进行了研究试验。国外公路桥梁亦有大量探讨;本文介绍了国外公路桥梁车辆制动的研究,文中主要是以三种不同力学模型做比较,以研究单跨多梁的公路桥之动力效应。建立桥梁-车辆整体系统 At present, the flexible bridges in our country and the giant trucks are developing day by day, and the dynamic problems of the bridge structure, especially the braking force, should apparently be mentioned on the schedule. China’s railway bridges have conducted research in this area. There are also lots of research on highway bridges in foreign countries. In this paper, the research on the braking of highway bridges and bridges abroad is introduced. The paper mainly compares the three different mechanical models to study the dynamic effect of the bridge. Establish a bridge - the overall vehicle system