TLCVA-高层建筑风振控制性能实时混合实验分析

INVESTIGATION ON REAL TIME HYBRID TESTS ON WIND-INDUCED VIBRATION CONTROL OF TLCVA-TALL BUILDINGS

  • 摘要: 为研究圆环液柱吸振器(TLCVA)系统对高层建筑的风致振动控制性能,基于搭建的实时混合仿真实验平台,开展了TLCVA系统-高层建筑结构风振控制实时混合仿真试验。基于结构风振控制第三代Benchmark模型,通过Matlab/Simulink数值仿真计算结果与实时混合仿真试验结果的对比,验证了该平台的有效性。基于该平台,研究了TLCVA系统对高层建筑的风致振动控制效果,并考察了荷载不同激励方向和风速重现期的影响。结果表明:TLCVA系统可有效控制高层建筑在荷载不同激励方向下的风致响应(包括结构加速度、速度和位移响应);对于本文所研究的Benchmark高层建筑模型,TLCVA系统对高层建筑的风致响应控制效率随激励方向的变化而略有不同,但变化幅度很小;TLCVA系统对结构加速度响应的控制效率基本优于对结构速度和位移响应的控制效率。

     

    Abstract: To investigate the wind-induced vibration control performance of a tuned liquid column vibration absorber (TLCVA) system for tall buildings, a real-time hybrid simulation test (RTHST) on the wind-induced vibration control of the TLCVA system-tall building structure was carried out based on the established RTHST platform. Taking the third-generation benchmark model for the wind-induced vibration control of the structure as an example, the effectiveness of the developed RTHT system was validated by comparing the numerical simulation results with those of the RTHST. The structural control efficiency of the TLCVA system on the wind-induced responses of the studied tall building was investigated, with a particular attention to the influence of the excitation direction and of the wind speed period on its wind-induced response. The research results showed that: The TLCVA system can effectively mitigate the wind-induced responses (including structural acceleration, velocity, and displacement) of tall buildings under different excitation directions; For the investigated benchmark model, while the structural control efficiency of the TLCVA system slightly varies with the excitation direction, the variation is minimal; The TLCVA system exhibits more control efficiency for the acceleration response than those for the wind-induced velocity and displacement responses.

     

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