基于能量的结构风振控制设计方法研究

PDF(1160 KB)

振动与冲击 ›› 2012, Vol. 31 ›› Issue (8) : 24-28.

论文

基于能量的结构风振控制设计方法研究

周云; 陈小兵; 汪大洋

作者信息 +

energy-based design method for wind-induced vibration control

Zhou Yun; Chen Xiao-bing; Wang Da-yang

Author information +

文章历史 +

摘要

建立了结构任意高度单位风能量计算公式、各楼层总输入风能量计算公式、结构总输入风能量计算公式。在主体结构弹性状态下，给出了粘滞和粘弹性阻尼器的能量耗散公式及结构总能量输出公式，提出了基于能量的结构风振控制的设计流程。以某高层建筑结构为例，验证了所提基于能量的结构风振控制方法可有效实现结构风振控制设计，达到有效抑制结构风振反应的目的。

Abstract

Formulas of unit wind energy at any height, wind input energy of each story and total input energy of the structure were deduced and proposed according to energy balance principle in this paper. All the input energy was assumed to be dissipated by dampers, such as viscous and viscoelastic dampers. The total output energy was then calculated according to dissipation energy of all dampers in elastic condition. The structural design flow of energy-based wind vibration control was therefore advanced in the light of relationship between the input energy and output energy. A high-rise building was adopted as an example to verify the feasibility and rationality of the advanced energy-base design method. The results show that the proposed method can be used reasonably as wind-resistant design method of controlled buildings and better control effects can be achieved.

导出引用

周云;陈小兵;汪大洋. 基于能量的结构风振控制设计方法研究[J]. 振动与冲击, 2012, 31(8): 24-28

Zhou Yun;Chen Xiao-bing;Wang Da-yang. energy-based design method for wind-induced vibration control[J]. Journal of Vibration and Shock, 2012, 31(8): 24-28