Research on the Monitoring Technology of Incremental Launching Construction for Steel-concrete Composite Girder Bridge
In combination with the monitoring project of the incremental launching construction for the steel-concrete composite girder bridge of the Shenshan reconstruction and expansion project of the Beijing-Harbin expressway,the construction technology,construction monitoring structure calculation,stress and deflection monitoring and other technologies of the incremental launching construction for the steel-concrete composite girder bridge are analyzed.In order not to affect the normal traffic of vehicles under the bridge,the cross-line steel-concrete composite girder of the project adopts the construction technology with the walking-style incremental launching method.The deformation and strain during the incremental launching are monitored through the analogue simulation of construction monitoring,and the design and construction parameters are corrected based on the collecting data,and the expected design goals are finally achieved.In the process of monitoring and implementation,all strain monitoring points are monitored in real time,and the automatic collection is carried out by using the wireless data collecting box,so as to improve the efficiency and accuracy of monitoring.
万方数据
维普
