现代桥梁伸缩缝结构及特性分析

On expansion joint on modern bridges and its features analysis

通过对现代桥梁模数式和板式这两类伸缩缝结构及工作原理的探索分析,较为全面地阐述了主流伸缩缝的结构特点、多向位移特性和适用范围,并指出选择与桥梁伸缩位移相适应的伸缩缝,对桥梁的安全运营具有重要意义。

The paper explores and analyzes the expansion joints at modular-type and plate-type modern bridges and their work principles, gives some detailed illustration of the structural features, the multi-directional displacement features and applied scopes of main expansion joints, and points out the selecting the expansion joint suitable with the expansion displacement of bridges is meaningful for the safe operation of bridges.