桥梁伸缩装置使用情况和破坏原因分析

调查中发现在桥梁的使用初期和中期阶段,桥梁的伸缩装置普遍出现接缝材料老化、脱落,钢齿板的铆钉、锚杆间断拉开等现象,大部分已经呈现破坏状态,主要原因集中在结构本身问题,伸缩装置的质量问题,施工组织问题和施工缝选择不合理等.

Use and Failure Cause of Bridge Expansion Device

Through investigation, the author discovers phenomenons of joint material aging, loss, rivet and bolt of steel plate breaking open in bridge telescopic devices, and most of them have been destroyed. The causes are focus on such problem as the structure itself, the quality of telescopic device, construction organization design and construction joints selection, and so on.