无背索曲梁式斜拉桥索力张拉装置设计  

The Design of Stretch-Draw Device on Curved-Girder Integral Cable-Stayed Bridge without Backstage

作　　者：顾盛[1] 王炎[2,3] 蔡俊华[1] 

机构地区：[1]昆山市建设工程质量检测中心,江苏昆山215337 [2]昆山求正工程质量检测有限公司,江苏昆山215300 [3]苏州科技学院,江苏苏州215009

出　　处：《工程质量》2015年第9期47-50,共4页Construction Quality

基　　金：2014年度江苏省建设系统科技项目(2014ZD84)

摘　　要：无背索斜拉桥因其结构合理、造型优美,逐渐成为城市桥梁中的新宠。其中斜拉索起到实现主梁和索塔间荷载传递并将结构联结成整体的重要作用,因此索的张拉施工尤为关键。通过分析夏驾河步行桥结构形式的特点,指出传统张拉装置在该桥施工过程中可能遇到的问题,提出了一套完整的索力张拉装置,详细介绍了各组成部分的作用,总结了该张拉装置在现场施工中表现出的优点,为今后类似曲梁式斜拉桥的拉索张拉提供了借鉴和参考。Cable-stayed bridge without backstage had gradually become the new darling among urban bridges in view of its reasonable structure and elegant mold. Tension of the cables in this kind of bridge was of great significance as they played an important role in the load transfer and combination between main beam and tower. Based on analysis of structural characteristics of Xiajia River pedestrian bridge,some problems in the construction of this bridge were pointed out. In this paper,a complete set of stretch-draw device was brought up and the functions of each elements ware also introduced as well as its advantages in site construction were summarized,which could provide some reference for the tension of cables in structural system like curved-girder integral cable-stayed bridge.

关 键 词：无背索斜拉桥 曲梁式斜拉桥 桥梁施工 张拉装置 

分 类 号：U442[建筑科学—桥梁与隧道工程]