城市桥梁预应力混凝土梁拆除施工技术探究  

Research on the Construction Technology of Removing Prestressed Concrete Beams of Urban Bridge

作　　者：胡立锋 HU Li-feng(Zhejiang Jiahe Construction Co.Ltd.,Dongyang 322100,China)

机构地区：[1]浙江佳和建设有限公司,浙江东阳322100

出　　处：《工程建设与设计》2025年第5期212-214,共3页Construction & Design for Engineering

摘　　要：研究了城市桥梁预应力混凝土梁拆除施工技术要点,在掌握顶升横移与原位切割两种常见施工工艺优缺点的基础上,以原位切割施工工艺为主,分析了施工前期准备、临时钢管柱支撑安装、满堂脚手架搭设、分块放线与切割施工等施工措施。同时,指出了交通转换、环境保护两个施工弊端,有助于转变传统城市桥梁预应力混凝土梁拆除施工模式,充分提高拆除工作进度,以增强整个桥梁结构的使用性能。This paper studied the urban bridge prestressed concrete beam demolition construction technology key points,on the basis of mastering the advantages and disadvantages of two common construction technologies,namely,jacking and transverse movement construction technology and in-situ cutting construction technology,the construction measures such as pre-construction preparation,temporary steel pipe column support installation,full scaffold erection,block layoff and cutting construction are analyzed,at the same time,emphasizes the traffic conversion,environmental protection two construction disadvantages to help change traditional urban bridge prestressed concrete beam demolition construction mode,fully improve the demolition work,to enhance the performance of the whole bridge structure.

关 键 词：桥梁工程 预应力混凝土结构梁 原位切割法 施工技术 

分 类 号：U445.6[建筑科学—桥梁与隧道工程]