合肥电视塔TMD风振控制的时域分析  

Wind Induced Vibration Control of Hefei TV Tower with TMD in the Time Domain

作　　者：张志强[1] 李爱群[1] 蔡丹绎[1] 何建平 王建磊 

机构地区：[1]东南大学土木工程学院,南京210096 [2]国家广播电视总局设计院塔桅所,北京100045

出　　处：《特种结构》2000年第3期26-29,共4页Special Structures

基　　金：国家自然科学基金 !(批准号 :599780 0 9);国际合作项目"ResearchonWindInducedVibrationControloftheHighestSteelTowerinChina"资

摘　　要：本文对合肥电视塔进行了动力特性分析 ,同时利用仿真得到的 19维脉动风压时程样本曲线 ,对塔的振动和控制分别进行了时域分析。计算结果表明 ,利用上塔楼生活和消防水箱构成调频质量阻尼器 (TMD)对合肥电视塔的风振有明显的控制作用。最优参数的TMD可使得电视塔上塔楼峰值加速度响应下降 5 4%In this paper,stochastic vibration analysis of Hefei TV Tower is performed and the fluctuation wind load on the tower can be modeled as 19 dimensional correlated random process.With these samples,the vibration and control analysis of tower were carried out in the time domain,the calculation result showed that TMD is useful for the wind induced vibration of Hefei TV Tower when the water tank used for daily water supply and fire protection of the tower is designed as a tuned mass damper.With the optimal parameters of TMD,the peak acceleration responses of the upper turret were reduced by 54 %.

关 键 词：风振响应 振动控制 TMD 时域分析 电视塔 

分 类 号：TU347[建筑科学—结构工程]