抄録
A semi-active seismic isolation system using a controllable friction damper was developed to decrease relative displacement between ground and a superstructure. However, if the controller of the controllable friction damper break down, it cannot demonstrate its full performance. A new controllable friction damper using dependable piezoelectric actuators is proposed to slove this problem. This damper has a fail-safe mechanism enabling the system to demonstrate damping effect in case of malfunctions. This paper outlines the results of the characterization experiments of this damper. It also reports the simulation results for the seismic isolation effect and the relative displacement reduction effect of semi-active seismic isolation system using this damper.
