清江特大悬索桥基准索参数敏感性分析  

Sensitivity Analysis of Reference Cable Parameters of Qingjiang Super Large Suspension Bridge

作　　者：李海玉 陈帅 韩江龙 LI Hai-yu;CHEN Shuai;HAN Jiang-long(Enshi Transportation Comprehensive Law Enforcement Detachment,Enshi 445000,China;China Railway No 9 Group Co Ltd,Zhongshan 528437,China)

机构地区：[1]恩施州交通运输综合执法支队,恩施445000 [2]中铁大桥局九公司,中山528437

出　　处：《建材世界》2022年第2期127-131,共5页The World of Building Materials

摘　　要：悬索桥的跨中标高是基准索精准安装到位的重要指标,同时基准索的精确安装对后续悬索桥的施工有着重大影响。论文采用单因素分析法研究无应力索长、主跨跨度及温度场对悬索桥跨中标高的影响。通过解析法计算出每个参数的敏感性。结果可以看出,温度对跨中标高影响的敏感度最高,其敏感参数斜率为-10.70。The mid-span elevation of a suspension bridge is an important indicator for the accurate installation of the reference cable,and the precise installation of the reference cable has a significant impact on the subsequent construction of the suspension bridge.The single factor analysis method was used to study the influence of unstressed cable length,main span and temperature field on the mid-span elevation of suspension bridges.The sensitivity of each parameter was calculated by analytical method.It can be seen that the temperature has the highest sensitivity to the influence of the mid-span elevation,and the slope of the sensitive parameter is-10.70.

关 键 词：悬索桥 基准索架设 参数敏感性分析 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]