城市高架桥现浇箱梁预应力施工质量控制方法

Quality Control Method for Prestressed Construction of Cast-In-Place Box Girder of Urban Viaduct

城市高架桥现浇箱梁是一种成本较低的结构形式,具有耐震性良好、整体性良好、刚度高、行车舒适度高等优势。高架桥现浇箱梁预应力施工要充分考虑到可能发生的问题,在安装钢绞线、张拉这两个阶段加强监管,高度重视对预应力钢绞线、锚固用具的检查,尽量在现场抽检的基础上增加复查环节,以保证施工质量。

In-situ box girder of urban viaduct is a low-cost structural form, which has the advantages of good seismic resistance, good integrity, high rigidity, high driving comfort, and so on. The prestressed construction of the cast-in-situ box girder of the viaduct should fully consider the possible problems, strengthen the supervision during the two stages of installation of steel strands and tension, and attach great importance to the inspection of the prestressed steel strands and anchoring appliances, and try to spot check the scene as much as possible on the basis of increasing the review link to ensure the quality of construction.