基于CFD/CSD耦合分析的内置竖向挡板TLD高层建筑风振控制研究  

CFD/CSD coupling numerical simulation on wind-induced vibration control of tall building and TLD system with built-in vertical baffles

作　　者：孙连杨 吴玖荣[1] 钟文坤 傅继阳[1] 黄鹏[1] SUN Lianyang;WU Jiurong;ZHONG Wenkun;FU Jiyang;HUANG Peng(Research Center for Wind Engineering and Engineering Vibration,Guangzhou University,Guangzhou 510006,China)

机构地区：[1]广州大学风工程与工程振动研究中心,广东广州510006

出　　处：《振动工程学报》2025年第2期292-301,共10页Journal of Vibration Engineering

基　　金：国家自然科学基金资助项目(52378497,51925802);高等学校学科创新引智计划资助项目(D21021)。

摘　　要：调谐液体阻尼器(TLD)是高层建筑风振控制常用的阻尼器。纯水TLD系统的阻尼比较小,在其内部增设内置挡板,可显著增加其阻尼比而提高振动控制效果。本文基于计算流体动力学(CFD)开源软件OpenFOAM对带竖向挡板的TLD系统内的液体晃荡进行CFD仿真,并以第三代风振控制Benchmark模型为计算实例,对其风致响应进行计算结构动力学(CSD)时程分析,在此基础上开发了基于CFD/CSD耦合作用的TLD-高层建筑风振控制数值算法,对顶部设置带有竖向挡板的TLD系统的高层建筑的风振控制性能进行研究,分析了此类TLD系统对高层建筑风致响应的控制效率。不同重现期风荷载下的仿真结果表明,此类TLD系统对结构风致响应的控制效果显著。与实时混合实验的结果进行对比,验证了文中提出的数值算法具有较高的精确度。Tuned liquid damper(TLD)is a common type of passive damper system in high-rise buildingsl.However,the damping of a pure water TLD system is relatively small.Adding internal baffles can significantly increase its damping ratio,thereby improv-ing its vibration control efficiency.In this study,a numerical simulation of liquid sloshing in a TLD system with vertical baffles is conducted using the open-source computational fluid dynamics(CFD)software OpenFOAM.The wind-induced response of the benchmark building for the third-generation wind-induced vibration control study is investigated using the computational structure dynamics(CSD)method.On this basis,the CFD/CSD coupling numerical simulation is conducted to evaluate the control efficien-cy on wind-induced vibration control of a tall building and a TLD system with built-in vertical baffles.The CFD/CSD coupling nu-merical simulation results show that the TLD system with three vertical baffles has a significant control effect on the wind-induced response of the benchmark building under dynamic wind loading with different return periods.The comparison with real-time hy-brid test results also confirms that the proposed numerical algorithm in this paper has sufficient accuracy in estimating the wind-in-duced control efficiency.

关 键 词：风振控制 高层建筑 内置竖向挡板TLD CFD/CSD耦合作用分析 

分 类 号：TU973.213[建筑科学—结构工程]