小运河桥宽空心板梁病害分析和加固设计

Disease Analysis and Reinforcement Design for Xiaoyunhe Bridge with Wide Hollow Slab Beams

以宁通公路小运河桥为背景,通过对钢筋混凝土空心板梁病害的检测调查,分析了其主要病害包括裂缝、横向联结破坏及钢筋锈蚀等的成因,并针对病害进行了相应的加固设计,为今后类似老桥加固提供了参考。

After site investigation of steel-reinforced concrete hollow slab beams of Xiaoyunhe bridge in Ningtong highway, this paper analyses the cause of diseases including crack, failure of transversal joint and corrosion of steel reinforcement. Then corresponding strengthening design is proposed, which could be taken as reference for reinforcement of similar old bridges.