高墩钢桁梁步履式顶推施工监控技术

Construction Monitoring Technology of Walking Type Jacking of High Pier Steel Truss Girder

本文结合陕西合铜高速水苏沟大桥钢桁梁步履式顶推施工,通过模拟计算,对顶推过程中最不利工况下各个结构物的受力情况计算分析,利用监控设备对施工过程中结构物应力、变形及线型进行监控,保证顶推过程中的结构安全,对以后同类型桥梁施工有较高的借鉴价值。

Based on the step-by-step jacking construction of the steel truss girder of Shuisugou Bridge of Heyang-Tongchuan high speed in Shaanxi Province,this paper calculates and analyzes the stress situation of each structure under the most unfavorable working condition in the jacking process through simulation calculation,and monitors the stress,deformation and linetype of the structure in the construction process by using the monitoring equipment,so as to ensure the structural safety in the jacking process,which is a good reference value for the construction of the same type of bridge in the future.