节点刚度变化下角钢塔静力和风振响应分析  

Analysis of static performance and wind vibration response of angle steel tower under change of joint stiffness

作　　者：李峰[1] 刘征宇 张弓 夏大桥[3] LI Feng;LIU Zhengyu;ZHANG Gong;XIA Daqiao(School of Civil Engineenng,Xi'an University of Architecture and Technology,Xi'an 710055,China;Shenzhen General Institute of Architectural Design and Research Co.,Ltd,Shenzhen 518031,China;Radio,Film and Television Design and Research Institute,Beijing 100045,China)

机构地区：[1]西安建筑科技大学土木工程学院,西安710055 [2]深圳市建筑设计研究总院有限公司,深圳518031 [3]中广电广播电影电视设计研究院,北京100045

出　　处：《世界地震工程》2018年第4期120-129,共10页World Earthquake Engineering

摘　　要：使用有限元分析软件ANSYS,研究节点刚度对自立式角钢塔结构静力性能和风振响应的影响,主要研究内容有:采用线性滤波法中自回归AR模型和MATLAB编程模拟了脉动风速时程;建立考虑节点刚度的角钢塔模型;研究了静力和风振作用下节点刚度对结构内力和位移的影响。分析结果表明:节点刚度对角钢塔的静力性能和风振响应影响显著。ANSYS was used to study the influence of joint stiffness on the static performance and the wind vibration response of the self-supporting angle steel tower.The main research contents are as follows.The linear filtering au- toregressive AR model was used to simulate fluctuating wind speed time series by Matlab.The model of the angle steel tower considering the joint stiffness was established,and the influence of joint stiffness on the internal force and displacement of the structure under static force and wind vibration was studied.The results show that the joint stiffness has a significant influence on the static performance and the wind vibration response of the structure.

关 键 词：自立式角钢塔结构 节点刚度 自回归AR模型 风振响应分析 

分 类 号：TU311.3[建筑科学—结构工程]