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中跨合龙段施工是悬臂施工中的重点和难点,其施工质量的好坏关系到整个桥梁标高和箱梁内应力布。本文以永宁高速公路景秀2#大桥为工程背景,介绍了悬臂现浇箱梁桥中跨合龙段的施工工艺及质量控制要点。
Construction of the mid-span closure section is the key and difficult point in cantilever construction. The quality of its construction is related to the entire bridge elevation and the stress distribution in the box girder. In this paper, Yongning Expressway Jingxiu 2 # Bridge as the engineering background, introduced cantilever cast-in-place box girder bridge construction process and quality control points.