脉动风作用下电视塔桅杆结构TMD控制的惯性质量与位置优化  

Optimum Design of Mass and Distribution of TMD Systems for TV Tower under Fluctuating Wind

作　　者：滕军[1] 高峰[1] 刘红军[1] 李长朴[1] 李洪峰[1] 

机构地区：[1]哈尔滨工业大学深圳研究生院

出　　处：《工程抗震与加固改造》2006年第1期35-40,34,共7页Earthquake Resistant Engineering and Retrofitting

基　　金：国家自然科学基金资助项目(50478031);广州市地震工程与应用技术重点实验室资助项目

摘　　要：本文以深圳市梧桐山电视塔桅杆结构风振控制项目为背景,分析了风荷载的动力特性,给出了脉动风荷载的模拟方法;采用调谐质量阻尼控制方法和线性吸振、非线性耗能的结构控制策略,对控制装置进行了系统设计,分析了装置的惯性质量效应并提出了装置的优化布置方法;在模拟脉动风荷载作用下采用振型分解和时程分析相结合的方法,对结构进行动力分析和振动控制效果计算,为TMD高耸结构抗风设计提供了依据。The control of wind-induced vibration of the TV tower mast on Shenzhen Wutong Mountain is selected as an example in this paper. The dynamical characteristics of the wind are analyzed and the method of simulation of fluctuating wind load is proposed. It applies the control method of TMD （linear absorbing-vibration and nonlinear consuming-energy Wind-induced response） to analysis of the TV tower through optimal distribution of the position and the inertial mass effect of the TMD and design the control device. The tower or mast structure is simplified and analyzed based on the vibration mode resolving method and the time history analysis under the fluctuating wind load. These previde theoretical basis for TMD used in suooressing seismic resoonse of high-rise structure.

关 键 词：脉动风模拟 高耸结构 调谐质量阻尼器 质量效应 优化布置 

分 类 号：TU352.1[建筑科学—结构工程]