人行过街天桥钢箱梁低净空下吊装施工技术研究

Research on Hoisting Construction Technology of Steel Box Girder under Low Clearance of Pedestrian Overpass

文中结合人行天桥下穿城市高架桥梁吊装施工,通过方案比选,选择采用2台折臂吊和1台汽车的多台吊车协同抬吊方案,有效解决了低净空下吊装空间不足、存在安全风险等难题,保证了施工安全和工程质量,为以后类似工程提供参考。

In this paper,combined with the hoisting construction of the pedestrian overpass under the urban viaduct,through the comparison of the schemes,two folding jb cranes and one automobile and multiple cranes are selected for the cooperative hoisting scheme.It effectively solves the technical problems such as insufficient lifting space and safety risk under low clearance,ensures the construction safety and project quality,and provides a reference for similar project construction in the future.