Wind-induced vibration control of Hefei TV tower with fluid viscous damper

被引：3

作者：

Zhang Z. ^{[1
]}

Li A. ^{[1
]}

He J. ^{[2
]}

Wang J. ^{[2
]}

机构：

[1] College of Civil Engineering, Southeast University

[2] Design Institute, State Administration of Radio Film and TV

来源：

Frontiers of Architecture and Civil Engineering in China | 2009年 / 3卷 / 3期

关键词：

Fluid viscous damper; High-rise structure; Vibration control; Wind-induced response;

D O I：

10.1007/s11709-009-0038-x

中图分类号：

学科分类号：

摘要：

The Hefei TV tower is taken as an analytical case to examine the control method with a fluid viscous damper under wind load fluctuation. Firstly, according to the random vibration theory, the effect of fluctuating wind on the tower can be modeled as a 19-dimensional correlated random process, and the wind-induced vibration analysis of the tower subjected to dynamic wind load was further obtained. On the basis of the others' works, a bimodel dynamic model is proposed. Finally, a dynamic model is proposed to study the wind-induced vibration control analysis using viscous fluid dampers, and the optimal damping coefficient is obtained regarding the wind-induced response of the upper turret as optimization objectives. Analysis results show that the maximum peak response of the tower under dynamic wind load is far beyond the allowable range of the code. The wind-induced responses and the wind vibration input energy of the tower are decreased greatly by using a fluid viscous damper, and the peak acceleration responses of the upper turret is reduced by 43.4%. © Higher Education Press and Springer-Verlag 2009.

引用

页码：249 / 254

页数：5