中小跨径梁桥检测与常见病害调查研究

Investigation on the common diseases and detection of small and medium span girder bridges

我国桥梁建设步入了大规模发展阶段,由于众多大桥及特大桥的存在,产生了对中小跨径桥梁的养护重视度不够等问题。在总结某市桥检报告与病害研究的基础上,对中小跨径梁桥的常见病害进行了整理与分析。研究发现,病害主要集中在梁桥的主要部件及上部一般构件上,以裂缝和钢筋锈蚀为主。针对中小跨径空心板梁和T梁的典型病害,从设计与施工的角度分析病害的成因,并对桥检评定工作及公路桥梁技术状况评定标准中存在的问题做一个总结。

Nowadays, with the large-scale development of bridge construction in China, great bridges, and grand bridges exist. The maintenance emphasis of the medium or shore span beam bidges is not enough like before. Based on the bridge detection report and diseases research of a city, the author collects and analyses the common diseases of medium or short span beam bridges. The study finds that diseases are focused on the major components and upper general members, and the main types are cracks and corrosion. In regard of typical diseases of hollow slab girders and t-shaped girders, this paper analyses reasons for diseases from design and construction angles and summarizes problems on evaluation for bridges and standards for technical condition evaluation of highway bridges.