波形钢腹板PC组合箱梁桥悬臂施工线形控制研究

Study on linear control of cantilever construction for PC composite box-girder with corrugated steel webs

结合波形钢腹板预应力组合连续箱梁桥工程实例,开展了该种桥型悬臂施工控制技术研究,重点论述了剪切变形、混凝土徐变对箱梁线形的影响,并给出了立模标高的计算方法,以供参考。

Based on the project example of PC composite box-girder with corrugated steel webs, research on cantilever construction control is performed, the effect of shear deformation and concrete creep on the box-girder deflection is mainly discussed, and the calculation method of the formwork placing elevation is given, which can provide reference for similar bridges.