Abstract
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 shaking table of NCREE, Taiwan. The active bracing control system was installed at the first floor. Three different control algorithms were used for the experimental verification: static-output-feedback LQR control, modal control with direct output feedback, and static-output-feedback with variable gain. It is concluded that within the maximum capacity of the actuator in the experiment all the three control algorithms performed well and almost 50 per cent of displacement as well as the acceleration of each floor response was reduced. Copyright © 1999 John Wiley & Sons, Ltd.
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