后张法预应力混凝土简支箱梁单孔梁施工技术分析

Analysis on Single-hole Beam Construction Technology of Pre-stressed Concrete Simple-supported Box Girder by Post-tensioning Method

混凝土简支箱梁具有外形美观、结构形式简洁、受力明确、结构刚度大、施工便利等优点。以实际工程为例,对后张法预应力混凝土简支箱梁单孔梁施工要点进行了分析和探讨,解决了其重难点问题,取得了良好的施工效果,为类似工程施工提供了借鉴和参考。

The concrete simple-supported box girder has the advantages of good-looking appearance,succinct structural style,clear stress,large structural rigidity and convenient construction.Taking a practical project as an example,the article analyzes and discusses the single-hole beam construction gist of pre-stressed concrete simple-supported box girder by post-tensioning method.The difficulties and problems of its construction are solved,and the good construction effects are achieved,which can be referred for the construction of the similar projects.