高层建筑地震反应全反馈主动TMD控制理论研究

本文应用最近提出的全反馈主动控制法对高层建筑地震反应进行了全反馈主动ＴＭＤ（调谐质量阻尼器）控制的理论研究，考虑了实时控制过程中控制力的时间滞后效应，并通过数值模拟分析了不同的反馈形式以及不同的时间滞后量对主动ＴＭＤ控制效果的影响。最后得出结论：对高层建筑地震反应实施全反馈主动ＴＭＤ控制，既能更有效地降低结构的位移反应和速度反应，又能大幅度地降低结构的加速度反应；且当控制力时间滞后量较大时，对主动

THEORETICAL RESEARCH ON COMPLETE-FEEDBACK ACTIVE TMD CONTROL FOR SEISMIC RESPONSES OF MULTISTORY BUILDINGS

In this paper,theoretical research on complete-feedback active TMD control for seismic responses of multistory buildings is performed by using the complete-feedback active control algorithm proposed recently,in which time-delay effect of control force is considered in the process of on-line control.The influence of different forms of feedback and different values of time-delay on the effect of active TMD control is numerically simulated.Some conclusions are given as:when the complete-feedback active TMD control is applied to the seismic responses of multistory buildings,not only are the displacement and velocity responses of the structures more effectively reduced,but also the acceleration response of the structures is significantly suppressed.A larger value of time-delay of control force may remarkably affect the effect of active TMD control,even make the controlled structures unstable seriously