Chapter
Apr 26, 2012
Experimental Study on Torsional Response Control of Frame-Shear Wall Eccentric Structure Using MR Dampers
Publication: Earth & Space 2006: Engineering, Construction, and Operations in Challenging Environment
Abstract
Magnetorheological (MR) damper has received a great deal of attention in the recent years. A new mechanical model—double sigmoid is proposed based on the experimental study of MR damper, and it can accurately describe the hysteresis nonlinear properties of MR damper. A 3-storey frame-shear wall structure model with an asymmetric stiffness distribution is considered, and multiple MR dampers are used to control this test structure. The simulation model of this test structure is built according to the coupled translation and torsion response, with and without MR dampers, based on Matlab/Simulink and hardware/software resources of dSPACE. Then the shaking table experiment has been carried out in Dalian University of Technology. It is found that the coupled translation and torsion response is significantly mitigated with MR dampers under different earthquake excitations and various excitation levels.
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© 2006 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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School of Civil and Hydraulic Engineering, Dalian University of Technology, 116024, China.E-mail: [email protected]
School of Civil and Hydraulic Engineering, Dalian University of Technology, 116024, China.E-mail: [email protected]
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