抄録
The placement of the active controllers is one of most important issues in the research of the active seismic response control* So we analyse the multistory buildings with the active adjustable stiffness systems which connect the target floor and the ground. When the self-balancing adaptive control algorithm is adopted, the structural vibration is suppressed by the self-detuning property and the energy absorption of controllers. The extent of adjustable stiffness as well as the number and the position of controllers are evaluated from the numerical results of the seismic response. The suitable position of the active controllers is selected from the eight cases of placement. The nonstationary spectra and the amount of the absorbed energy verify the nonresonant control effect by the active controllers.
