桅杆结构的风振响应分析及实验研究  

Windi-Induced Responses Analysis and Wind Tunnel Test Research of Guyed Masts

作　　者：何艳丽[1] 马星[2] 王肇民[2] 董石麟[1] 

机构地区：[1]上海交通大学建筑工程与力学学院,上海200030 [2]同济大学建筑工程系,上海200092

出　　处：《上海交通大学学报》2001年第10期1438-1443,共6页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金项目 ( 5 97780 30 )

摘　　要：基于随机振动状态向量离散分析方法 ,研究了桅杆结构的风振响应 .当考虑纤绳非线性对桅杆结构的影响时 ,采用高斯截断理论使非线性方程线性化 .通过对一实际工程和风洞试验模型的分析可以看出 ,随机振动离散分析方法能准确计算出结构响应的均值和方差 ,并且风洞试验的结果揭示了桅杆结构随机风振响应更多的特性 .Based on the idea of the discrete analysis method of random vibration, the paper studied the wind responses of guyed masts. The Gauss truncation theory is used to linearize the nonlinear equations when taking account of the non-linearity of guys. By the discrete random vibration method it can calculate the accurate mean and mean square reaponses. The wind response results of the numerical example and the wind tunnel test model demonstrate this point. The obtained results through the wind tunnel test are satisfactory and provide more information about the random vibration behaviors of the guyed mast structure.

关 键 词：桅杆结构 随机振动离散法 高斯截断 风洞试验 

分 类 号：TU347[建筑科学—结构工程]