Seismic response vibration control analyses of Hefei TV Tower with fluid viscous damper

In this paper, Hefei TV Tower is used as an analytical case to examine the control method with Fluid Viscous Damper under earthquake. Firstly, Under the El-Centro, Taft and simulated earthquake wave of Hefei excitations, the seismic response is studied. Finally, a dynamic model is proposed to study the seismic vibration control analysis using viscous fluid dampers, and the optimal damper damping coefficient is obtained by considered the seismic displacement response of upper turret as optimization objectives. According to analysis show that the seismic responses of the tower are combined with more vibration modes, and the higher order modes can not be neglected. The seismic responses of the tower are decreased greatly with the optimal parameters of fluid viscous dampers. The vibration reduction effectiveness of fluid viscous dampers is sensitive to the spectral characteristics of earthquake wave.