Statistical Performance of Semi-Active Controlled 10-Storey linear Building using MR Damper under Earthquake Motions

Document Type : Research Article


1 Department of Civil Engineering, Faculty of Engineering, University of Maragheh, Maragheh, Iran

2 Department of civil engineering, faculty of engineering, university of maragheh,maragheh.iran


Due to the advantages of semi-active control methods over passive and active methods, the development and performance of these methods to control the structural response under dynamic lateral loads has been widely considered. Magneto-Rheological (MR) Dampers are among the widely developed devices for semi-active control of buildings. Various models are proposed to simulate MR Dampers’ dynamic behavior. The present paper summarizes the results obtained through studying a 10-story linear shear building exposed to 28 far and near-fault earthquakes in MATLAB. A MR Damper with Clipped Optimal Control Algorithm was considered to control the vibrations of the structure. In addition to the effect of actuator saturation, the actuator’s dynamics were also considered using the Modified Bouc-Wen model. Moreover, the positioning the damper at three different configurations of lower, middle and upper stories were investigated. A statistical study was carried out under different types of near and far-fault records. Results obtained through this study suggested the best performance, in terms of minimizing the roof displacements, while placing a MR damper at the first floor. Results show that the investigated control system has the best performance under near-fault records without pulse, with an average reduction of 21% in the structural response.


Main Subjects

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