简支箱梁支架现浇施工技术

On cast-in-site construction technique for simply-supported box girder support

结合工程实例,通过对现浇简支箱梁支架方案的分析比较,利用现浇支架法对900 t预应力简支箱梁进行了施工,从地基处理、支架搭设及预压、箱梁施工及预应力张拉等方面进行了论述,为类似工程施工积累了经验。

Combining with the engineering examples,the paper adopts the cast-in-place support method to construct the 900 t prestressed simply-supported box girder by analyzing and comparing the cast-in-site simply-supported box girder support scheme,and indicates from the foundation treatment,the support erection and prestress,the construction of box girder,and the prestressed tension,so as to accumulate experience for similar projects.