平行钢绞线斜拉索索力控制方法研究  

Research on Force Control Method of Parallel Steel Strand Cable-stayed Cable

作　　者：杜军良 Du Jun-liang

机构地区：[1]中铁十一局集团有限公司,武汉430065

出　　处：《建筑技术开发》2020年第21期101-103,共3页Building Technology Development

摘　　要：为研究平行钢绞线斜拉索索力控制方法及测试手段的适应性及效果,以蒙华铁路汉江特大桥主桥为背景,通过施工控制及施工监测保证每股钢绞线的索力均匀性控制在3%以内、整束索力偏差控制在2%以内,并采用振动频率法对整束索力进行测试,索力偏差控制在5%以内,满足工程精度的要求,该方法可为同类型斜拉索索力控制提供参考。In order to study that adaptability and effect of the force control method and test method of the parallel steel strand cablestayed cable. Base on that main bridge of Hanjiang bridge on menghua railway,through construction control and construction monitoring to ensure that each strand cable force uniformity control within 3 %,the deviation of that whole cable force is control within 2 %,and that whole cable force is measure by adopting a vibration frequency method,cable force deviation control within 5 %,meet the requirements of engineering precision. The method can be used as a reference for the force control of the same type of cable-stayed cables.

关 键 词：钢绞线斜拉索 施工控制 施工监测 索力均匀性 振动频率法 

分 类 号：TU984[建筑科学—城市规划与设计] U448.27[建筑科学—桥梁与隧道工程]