松浦大桥大跨径现浇箱梁施工临时墩架设计

Temporary pier-frame design for large-span casting box girder of Songpu bridge

以哈尔滨市在建松浦大桥大跨径现浇连续箱梁施工为对象,结合现场实际的地质、水文及相应规范,采取容许应力法对临时墩架进行设计计算.实践证明:临时墩架设计满足现场施工需要,既能保证现浇箱梁的施工质量,又能节约施工成本,加快施工进度,为大跨径现浇连续箱梁的施工提供一个新途径.

Taking the construction of large-span casting box girder of Songpu bridge in Harbin as investigation objective,and taking the actual site geology,hydrology and corresponding norms into account,the temporary pier-frame was designed with the method of allowable stress.It was proved by practice that the temporary pier-frame met the need of its site construction,not only ensuring casting construction quality but also saving construction cost and speeding up the construction schedule,so that providing a new way for the construction of large-span continuous box girder.