索结构张力不确定度估计方法  

Cable tension uncertainty evaluation method

作　　者：杨春[1,2] 杨玉泉[1,2] 

机构地区：[1]上海市政工程设计研究总院,上海200092 [2]上海市政工程检测中心,上海201114

出　　处：《振动与冲击》2012年第4期105-109,共5页Journal of Vibration and Shock

基　　金：上海市政工程设计研究总院科研项目(2010-15)

摘　　要：根据弹性边界且考虑截面抗弯刚度的索振动频率方程推导了索力对其计算模型参数的灵敏度,得到了索力对各参数的不确定度估计公式。系杆拱桥和斜拉桥的索力对比测试验证了索力不确定度估计方法正确性。并开发了索力和索力不确定度计算软件。According to the vibration frequency equation of cable with elastic boundary conditions,sensitivity of cable tension with respect to the calculation model parameters were derived taking into account the bending stiffness of the section.The cable tension uncertainty evaluation equations related to each parameter were obtained.The correctness of the evaluation method was verified by cable tension test on a tied-arch bridge and a cable-stayed bridge.Special software was developed for calculating cable tension and cable tension uncertainty.

关 键 词：索力测试 灵敏度 不确定度 

分 类 号：TU317.5[建筑科学—结构工程] TP319[自动化与计算机技术—计算机软件与理论]