高层建筑结构风致振动的被动吸吹气流动控制研究  

Passive suction and blowing flow control of wind-induced vibration of tall buildings

作　　者：卢姗姗[1,2] 张志富 刘金博 陈文礼[1,2] 王伟[1,2] LU Shanshan;ZHANG Zhifu;LIU Jinbo;CHEN Wenli;WANG Wei(Key Lab of Smart Prevention and Mitigation of Civil Engineering Disastersof Ministry of Industry and Information Technology,Harbin Institute of Technology,Harbin 150090,China;Key Labof Structures Dynamic Behavior and Control of the Ministry of Education,Harbin Institute of Technology,Harbin 150090,China)

机构地区：[1]哈尔滨工业大学土木工程智能防灾减灾工业和信息化部重点实验室,哈尔滨150090 [2]哈尔滨工业大学结构工程灾变与控制教育部重点实验室,哈尔滨150090

出　　处：《振动与冲击》2021年第11期7-16,共10页Journal of Vibration and Shock

基　　金：国家自然科学基金(51808173,51722805);哈尔滨工业大学科研创新基金(HIT.NSRIF.201862)。

摘　　要：为抑制高层建筑结构的风致振动响应,提出一种基于被动吸吹气的流动控制方法,将方形截面高层建筑结构与被动吸吹气套环进行结合,在结构立面预设吸吹气通道,通过结构尾流吹气破坏非定常旋涡脱落,从而减小作用于结构表面的平均风荷载和脉动风荷载,达到抑制风致振动的目的。在风洞试验中研究当被动吸吹气套环安装在模型的3个不同高度时,试验模型整体风荷载、风致振动响应以及尾部流场的变化规律。试验结果表明,被动吸吹气套环控制装置能有效抑制高层建筑结构的整体风荷载及风致振动响应,且被动吸吹气套环安装位置越接近结构顶部,对结构风致振动的控制效果越显著。In order to suppress wind-induced vibration response of a high-rise building structure,a flow control method based on passive suction and blowing was proposed.The square cross-section high-rise building structure was combined with passive suction and blowing rings.A suction and blowing channel was set on the facade of the structure,and the unsteady vortex shedding was destroyed by the structure wake blowing to reduce average wind load and fluctuating wind load acting on the structure surface,and suppress wind-induced vibration.In wind tunnel tests,variation laws of wind load,wind-induced vibration response and tail flow field of the test model were studied when passive suction and blowing rings were installed at 3 different heights of the model.The test results showed that the passive suction and blowing ring control device can effectively suppress the overall wind load and wind-induced vibration response of the high-rise building structure;the closer to the structure top the ring installed position,the more significant the wind-induced vibration control effect.

关 键 词：高层建筑 风致振动 风荷载 风洞试验 绕流场 

分 类 号：TU311.3[建筑科学—结构工程] TU352.2