伸缩缝在桥梁建设中得到广泛的使用,然而伸缩缝带来的跳车问题,后期养护问题始终困扰着桥梁工作者。人们在努力改善伸缩装置质量,减少使用伸缩缝的同时也在寻找着其他途径。无伸缩缝桥梁的出现正是这一努力的结果。无伸缩缝桥梁的概念伸缩缝是伴随着桥跨结构与型式的发展而出现和改进的。最初简单的悬吊体系、石拱桥、简支板桥等等因其纵向的自由约束或极少变形的结构特征或小跨径原因,伸缩问题对结构不存在任何 The expansion joints are widely used in the construction of bridges. However, the problems of jumping vehicles caused by expansion joints and the problems of post-maintenance have always plagued the bridge workers. People are trying to improve the quality of telescopic devices, reducing the use of expansion joints are also looking for other ways. The emergence of a bridge without expansion joints is the result of this effort. The concept of non-expansion joints Bridge expansion joints along with the bridge structure and the type of development and improvement. The original simple suspension system, stone arch bridge, simply supported slab bridge and so on due to its longitudinal free or minimal deformation of structural features or small span reasons, the expansion of the problem does not exist on the structure of any