SEMIACTIVE CONTROL ALGORITHMS WITH MR DAMPERS FOR SEISMIC RESPONSE REDUCTION OF BUILDINGS
Abstract
This paper analysed seismic reducing capacity of MR damper, a very new damper, with the relative small power and the response rate is very quickly. Structural model was used in this study was three-storey steel frame under the four actual earthquakes: ElCentro, Hachinohe, Kobe, Northidge and the Artificial Earthquake: A quakeEarth. Seismic reducing effect of structure was calculated relying on five algorithms: Clipped-Optimal with full state feedback of displacements and velocities, H2/LQG with acceleration feedback in assosiation; Proposed Fuzzy Control; Gain-Scheduled Fuzzy Control and Self-Tuning Fuzzy Control with Simulink tool of Matlab. Through this studied result, MR damper with Self-Tuning Fuzzy Control Algorithm has brought very good seismic reducing effect as that structure was influenced by earthquake.