Steel and Composite Structures

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Seismic behavior of energy dissipation shear wall with CFST column elements

  • Su, Hao (School of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Zhu Lihua (School of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Wang, Yaohong (School of Civil Engineering, Inner Mongolia University of Technology) ;
  • Feng, Lei (Inner Mongolia Power (GROUP) Co., Ldt) ;
  • Gao, Zeyu (Dongtai Municipal Education Bureau) ;
  • Guo, Yuchen (School of Highway, Chang'an University) ;
  • Meng, Longfei (School of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Yuan, Hanquan (School of Civil Engineering, Xi'an University of Architecture and Technology)
  • Received : 2021.11.08
  • Accepted : 2022.04.06
  • Published : 2022.04.10
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Abstract

To develop high-efficiency lateral force resistance components for high-rise buildings, a novel energy dissipation shear wall with concrete-filled steel tubular (CFST) column elements was proposed. An energy dissipation shear wall specimen with CFST column elements (GZSW) and an ordinary reinforced concrete shear wall (SW) were constructed, and experimented by low-cycle reversed loading. The mechanical characteristics of these two specimens, including the bearing capacity, ductility, energy dissipation, and stiffness degradation process, were analyzed. The finite-element model of the GZSW was established by ABAQUS. Based on this finite-element model, the effect of the placement of steel-plate energy dissipation connectors on the seismic performance of the shear wall was analyzed, and optimization was performed. The experiment results prove that, the GZSW exhibited a superior seismic performance in terms of bearing capacity, ductility, energy dissipation, and stiffness degradation, in comparison with the SW. The results calculated by the ABAQUS finite-elements model of GZSW corresponded well with the results of experiment, and it proved the rationality of the established finite-elements model. In addition, the optimal placement of the steel-plate energy dissipation connectors was obtained by ABAQUS.

Keywords

Acknowledgement

This work was supported by National Natural Science Foundation of China (51868059), Shaanxi Province Key Research and Development Program on Industry Innovation Chain (2018ZDCXL-SF-03-03-01), and Inner Mongolia Natural Science Foundation (2016BS0504).

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