Abstract
This paper discusses the characteristics of the dynamic response of a structure with simple semi-active control system. The control system consists of controllable dampers that are set at each inter-story level. At first, a proposed control method of the damper force was examined. The method, which based on potential energy of inter story, controls the hysteretic shapes of the damper. The proposed algorithm aims at reducing a displace response without increasing an acceleration response. To examine the performance of the proposed control scheme under seismic excitations, numerical analysis based on equivalent linearization method were conducted. Then extension of this control method to a multi-story building is discussed. As a result, it is confirmed that the MDOF model was well controlled by the proposed methods under seismic excitations.
