摘要
首先对干线公路病险桥梁按跨度、上部结构型式、建设年代及主要病害类型进行统计分类。然后列举病险桥梁的主要病害特征,着重介绍了空心板桥板底超宽横缝、单板受力及剪切裂缝现象。
Firstly, classification and statistical analysis for dangerous bridges in trunk road were carried out based on the bridge span, superstructure style, construction period and main disease types. Then the paper listed main disease characteristics of dilapidated bridges, introduced the hollow slab bottom ultra wide joints , single beam bearing and shear fracture phenomenon.
关键词
病险桥梁
统计
典型病害
剪切裂缝
dangerous bridge
statistical analysis
typical diseases
shear fracture