浅谈高速公路预制箱梁安装精度控制

  

(陕西高速公路工程咨询有限公司,西安710054

  要:预制箱梁架设精确与否直接影响桥面铺装厚度,关系桥梁施工质量,在施工过程中必须高度重视,运用科学合理施工方法严格控制,确保工程施工质量。宝汉高速公路坪坎至汉中(石门)段受秦岭地形条件影响,且曲线梁桥甚至斜交曲线桥梁甚多,对预制箱梁安装精确度提出了很高的要求。本文以汉坪项目预制箱梁安装为工程实例,对这一工艺控制方法、要点和经验进行了探讨和总结,可供同类工程参考。

关键词:高速公路;预制箱梁;安装精确度控制

中图分类号:U445              文献标识码:A

Discussion on the Precision Control of the Installation of Prefabricated Box Beam on Expressway

MA Lang

(Shaanxi Expressway Engineering Consulting Co.,LTD. Xi’an721006,china)

AbstractPrecision of the erection of prefabricated box girders directly affects the thickness of the deck pavement and the quality of the bridge construction. It should be paid attention highly during the construction process and controlled by scientific and reasonable construction method to ensure the quality of the project construction. Pingkan to Hanzhong(Shimen) section of Baohan Expressway was affected by the terrain conditions of the Qinling Mountains, and there were many curved girder bridges and even diagonal curved bridges, which had high requirements for the accuracy of installation of prefabricated box beams. Taking the installation of prefabricated box girders in Hanping project as an engineering example, the method, key points and experience of the process control was discussed and summarized in this paper , which could be used as reference for similar projects

Key words: Highway; Prefabricated box girder; Installation accuracy control