索结构索力无线测试系统及应用  

Application of Wireless Cable Force Measurement System of Cable Structures

作　　者：罗尧治[1] 朱铁城[1] 程华强[1] 童若飞[1] 刘钝[1] 

机构地区：[1]浙江大学空间结构研究中心,浙江杭州310058

出　　处：《施工技术》2013年第14期33-37,共5页Construction Technology

基　　金："十二五"国家科技支撑计划项目(2012BAJ07B03)

摘　　要：根据频率法测试拉索内力的原理开发了索结构索力无线测试系统。考虑拉索的弯曲刚度和两端弹性嵌固的边界条件,提出了基于遗传算法的多频率索力计算方法。该方法对索力计算具有较强的通用性和较高的精度,且不依赖基频或某指定阶频率,方便实测应用。利用该方法并结合无线动态测试设备,开发了集成化的索结构索力无线测试系统。系统在某体育馆桅杆斜拉索张拉成型后的索力测试中得到应用,测试过程方便快捷,索力计算结果基本准确。A wireless cable force measurement system of cable structures was developed depending on the basic principle of frequency method.Considering the influence of the flexural rigidity and elastic embedding on the cable,a multistage frequency method based on the genetic algorithm was proposed.This method is generally applicable to most cables with high precision,and doesn＇t rely on fundamental frequency or a specified order frequency.Thus it＇s convenient in practical application.Using this method and wireless dynamic test equipment,a integrative wireless cable force measurement system of cable structures was developed.The system was used in the cable force measurement of a stadium＇s mast stay-cables conveniently and efficiently,with a basically correct result.

关 键 词：索结构 索力 测试 遗传算法 多频率 

分 类 号：TU323.8[建筑科学—结构工程]