含加强层框筒结构位移监测方法  

Displacement monitoring method for frame tube structure with strengthened stories

作　　者：熊海贝[1] 曹纪兴[1] 张凤亮[1] 

机构地区：[1]同济大学结构工程与防灾研究所,上海200092

出　　处：《浙江大学学报（工学版）》2016年第9期1752-1760,共9页Journal of Zhejiang University：Engineering Science

基　　金：国家自然科学家基金资助项目(51508407;51508413);上海市浦江人才计划资助项目(15PJ1408600);中央高校基本科研业务费

摘　　要：提出分区最小二乘法用于计算含加强层框架核心筒结构的水平位移,并利用数值模拟验证该方法的可行性.与已有的矩形法和梯形法对比,并讨论不同测点布置对计算精度的影响.研究结果表明:分区最小二乘法具有布点少、精度高的优点.将该方法成功应用到某一超高层的实际监测中,得到风荷载作用下各楼层质心处的层间位移角曲线和水平位移曲线,从而为其响应预测、性态评估和结构可靠度分析提供重要的依据.A novel subregional least square method was presented for horizontal displacement calculation of frame core-tube structure with strengthened stories. The rationality was validated by numerical simula-tion. Rectangular method and trapezoidal method were used to perform comparison. The effect of different layout of clinometers on the calculation accuracy was discussed. Results show that the subregional least square method can use less clinometer and obtain more accurate results. The proposed method was suc-cessfully applied on a super-tall building, in which story drift curve and horizontal displacement curve of each floor were obtained under wind load. This method provides an important basis for the prediction of structural response, the assessment of structural condition and the reliability analysis of structure.

关 键 词：框架核心筒结构 水平位移监测 分区最小二乘法 层间位移角 

分 类 号：TU528.572[建筑科学—建筑技术科学]