公路桥梁上部结构加固施工技术

Construction Technology for Reinforcement of Highway Bridge Upper Structure

随着中国改革开放和经济建设的飞速发展,公路和城市道路的现代化建设也在加快进程。相当数量建成投入运营的公路桥梁由于通行时间长以及车辆超载等原因导致部分梁板受损严重,致使桥梁整体受力不能满足规范标准要求,对桥梁安全也构成了潜在的威胁。结合某公路桥梁中出现的病害和缺陷进行了分析,针对桥梁梁板维修加固施工技术方案实施并通过施工监测予以验证,总结出类似工程加固处理经验和类似桥梁施工方法。

With the rapid development of reform and opening up and economic construction in China,the modernization of highway and urban roads is also accelerating.A considerable number of highway bridges have been built and put into operation,and some girders and slabs have been seriously damaged due to long traffic time and overloading of vehicles,which results in that the overall force of the bridge can not meet the requirements of specifications and standards and poses a potential threat to the safety of the bridge.Based on the analysis of diseases and defects of a highway bridge,the construction scheme for maintenance and reinforcement of bridge girder plate is implemented and verified by construction monitoring,and the experience of reinforcement treatment for similar projects and construction methods of similar bridges are summarized.