桥梁钢管拱安装施工技术研究

Research on Installation and Construction Technology of Bridge Steel Pipe Arch

某钢管混凝土系杆拱桥主跨100m,采用先梁后拱法。结合施工现场情况,钢管拱采用吊装配合支架法安装施工。文章重点介绍了钢管拱节段划分、吊装设备选用、临时支架设计、安装步骤、线性控制等内容,可为类似条件下的系杆拱桥钢管拱安装施工提供参考。

A steel tube concrete tied arch bridge with a main span of 100m is constructed using the beam first and then arch method.Based on the construction site conditions,the steel pipe arch is installed using the lifting and supporting method.The article focuses on the division of steel pipe arch segments,selection of lifting equipment,design of temporary supports,installation steps,linear control,etc.,which can provide reference for the installation and construction of steel pipe arches in tied arch bridges under similar conditions.