桥梁橡胶伸缩缝设计方法的探讨

Research of the Designing Way to Bridge′s Expansion and Contraction Joint

分析了桥梁伸缩缝的现状，并指出了设计阶段应注意的问题。同时对伸缩缝在设计阶段的强度、刚度以及变形量的计算进行了探讨，提出采用“连锁结构”的结构形式，并按等刚度设计和伸缩缝预压安装，才能保证高速行车的平稳、安全和舒适。

The condition of bridge′s expansion and contraction joint was analysed, and the problem that should be paid attention to in the period of designing was put forward Meanwhile, the strength, stiffness and deformation calculation of expansion and constraction joint in designing was also approached Only adoping “chain structure', designing by equal stiffness and installing preparatory compress of expansion and contraction joint can ensure the smooth, safety and comfortable driving in high speed