体育场挑篷结构风振控制研究  

Research on Wind-induced Vibration of Stadium Canopy Structures

作　　者：胡斌[1] 薛素铎[1] 宋彦杰[1] 李雄彦[1] 

机构地区：[1]北京工业大学空间结构研究中心,北京100124

出　　处：《建筑结构》2009年第S1期863-866,共4页Building Structure

基　　金：北京市属市管高等学校人才强教计划项目(05004790200701)

摘　　要：基于风荷载数值模拟,对体育场挑篷结构进行时程分析,获得结构风振响应。由于结构在风荷载作用下产生较大的振动,本文采用粘滞阻尼器对结构的风振响应进行控制。结果表明,设置粘滞阻尼器后,结构节点位移、加速度和杆件轴力都得到了明显的控制,且竖向加速度控制效果明显,可见粘滞阻尼器在大跨挑篷结构中的风振控制作用是显著的。同时对粘滞阻尼器在挑篷结构中的减振控制进行了参数研究。Based on wind load numerical simulation,the wind-induced response of stadium canopy structures had been obtained by time-history analysis.Because the structures have large wind-induced vibration,the viscous dampers are used to control the wind-induced vibration.The result shows that the joint displacement and acceleration and the element axial force have apparent control effect especially vertical acceleration using the viscous dampers.It can be seen that the effect of the viscous dampers is remarkable in controlling the wind-induced vibration of the canopy structures.In the end,parametric studies for control performance of the viscous dampers in the canopy structures are carried out.

关 键 词：体育场挑篷 风振控制 粘滞阻尼器 

分 类 号：TU399[建筑科学—结构工程] TU311.3