Experimental verification of building control using active bracing system

The objective of this paper is to examine the effectiveness of some control algorithms which will be implemented through experimental verification of a seismic-excited full-scale building. A full-scale 3-storey steel building with active bracing control system was tested at a three-dimensional shaki ng table of NCREE, Taiwan. The active bracing control system was installed at the first floor. Three different control algorithms were used for the ex perimental verification: static-output-feedback LQR control modal control w ith direct output feedback, and static-output-feedback with variable gain. It is concluded that within the maximum capacity of the actuator in the exp eriment all the three control algorithms performed well and almost 50 per c ent of displacement as well as the acceleration of each floor response was reduced. Copyright (C) 1999 John Wiley & Sons, Ltd.