TMD Wind-Induced Vibration Control along Wind Direction of Beijing Olympic Center Broadcast Tower Based on Its Simplified Model
LiAiqun1,2; Huang Ruixin1,2 ; Zhao Gengwen1,2
1School of Civil Engineering，Southeast University，Nanjing 210096，China)(2Key Lab of RC &PC Structure of Ministry of Education, Southeast University, Nanjing 210096 , China
Abstract：In the paper, Beijing Olympic Center Broadcast Tower is taken as a project case to investigate wind-induced vibration control with tuned mass damper (TMD) under the fluctuation load along wind direction. First of all, based on the random vibration theory, fluctuating wind load along wind direction of this tower is simulated by means of M. Shinozuka method, and 6 correlated time history curves are obtained. Secondly, 3D model of the Tower is investigated by use of 2D model, the accuracy and reliability of 2D model is verified, and calculated time is extremely saved taking advantage of 2D model. Finally, the optimal TMD coefficients are obtained regarding the wind-included acceleration response of upper story along wind direction as optimization objectives. The analysis results show that the maximum peak acceleration response of the tower along wind direction under dynamic wind load is far beyond the allowable value of the code, the wind-included responses are decreased greatly with TMD, and, with the optimal parameters of TMD, the peak acceleration and displacement wind-responses of the upper story along wind direction are reduced respectively by 20.2% and 42.7%. TMD dissipates a large amount of input energy and plays an important pole in the wind-induced vibration control of the tower along wind direction.
李爱群;黄瑞新;;赵耕文;. 基于简化模型的北京奥林匹克公园中心演播塔顺风向风振TMD控制研究[J]. , 2010, 29(10): 170-174.
LiAiqun;Huang Ruixin;;Zhao Gengwen;. TMD Wind-Induced Vibration Control along Wind Direction of Beijing Olympic Center Broadcast Tower Based on Its Simplified Model. , 2010, 29(10): 170-174.
2010, Vol. 29 
