缆索法吊装桁架式钢管拱肋的线型控制技术

Linetype Control Technique of Truss Steel Pipe Arch Rid with Cable Hoisting Method

通过位于湖州市经济开发区奚家庄大桥的施工,介绍采用缆索吊装系统,安装桁架式钢管混凝土拱肋的线型控制技术,分析拱肋成桥线型的影响因素和控制措施,拱肋节段控制点设置、监测方法和监测数据的计算,以及拱肋线型调整和施工监测实施要点。

Based on construction of Xijiazhuang Bridge on Huzhou Economic Developed Area, the author shows linetype control technique of truss steel pipe concrete arch rib with cable hoisting system. Influence factors and control measures on bridge linetype are analyzed. The author also puts forward control point setting principle, monitoring method and monitoring data calculation method, arch rib linetype adjusting method and the key construction supervision points.