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Earthquakes and Structures
  Volume 7, Number 6, December 2014, pages 937-953
DOI: http://dx.doi.org/10.12989/eas.2014.7.6.937
 


Nonlinear seismic damage control of steel frame-steel plate shear wall structures using MR dampers
Longhe Xu, Zhongxian Li and Yang Lv

 
Abstract
    A semi-active control platform comprising the mechanical model of magnetorheological (MR) dampers, the bang-bang control law and damage material models is developed, and the simulation method of steel plate shear wall (SPSW) and optimization method for capacity design of MR dampers are proposed. A 15-story steel frame-SPSW structure is analyzed to evaluate the seismic performance of nonlinear semiactive controlled structures with optimal designed MR dampers, results indicate that the control platform and simulation method are stable and fast, and the damage accumulation effects of uncontrolled structure are largely reduced, and the seismic performance of controlled structures has been improved.
 
Key Words
    steel plate shear wall; magnetorheological (MR) damper; control platform; nonlinear analysis; seismic damage control;
 
Address
Longhe Xu and Zhongxian Li: School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China

Yang Lv: School of Civil Engineering, Tianjin University, Tianjin 300072, China
 

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