斜交空心板桥裂缝原因分析及处理

Cracks Cause Analysis of Skew Hollow Slab Bridge and Its Strengthening

调查检测了某斜交空心板桥的裂缝等病害,在对该桥进行空间有限元分析的基础上,指出了产生这些病害的主要原因,提出外贴碳纤维布的维修加固方案.加固后的现场荷载试验结果表明,维修加固方案合理可行,桥梁达到了设计荷载的使用要求.

Damage of a skew hollow slab bridge is examined. Based on the results of 3-dimensional finite element analysis of the bridge, damage cause and strengthening project with carbon fiber-reinforced polymer externally bonded on tension face of the bridge are presented. Results of field test of the strengthened bridge show that the strengthening is valid.