Active Control ofBase-Isolated High-Rise Buildings Based on Equivalent-Input-Disturbance Approach

Abstract

This paper presents a new structural control method for the combination of passive-base isolation and active structural control based on the equivalent-input disturbance （EID） approach. Passive base-isolation enlarges the natural period of a high-rise building, and results in the suppression of the absolute acceleration of buildings. However, it increases displacement of the base-isolation story and may exceed its allowable range. To deal with this problem, the combination of a passive base-isolation and an active structural control has been the focus in structural control. Since suppressing absolute acceleration and inter-story drift are most important to protect a building, property, and people from a large earthquake, this study constructs a new activestructural-control system based on the EID approach that considers absolute acceleration and inter-story drift.