Steel and Composite Structures

  • 제33권1호
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  • Pages.1-18
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  • 2019
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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Seismic performance of steel plate shear walls with variable column flexural stiffness

  • Curkovic, Ivan (Department of Structures, University of Zagreb, Faculty of Civil Engineering) ;
  • Skejic, Davor (Department of Structures, University of Zagreb, Faculty of Civil Engineering) ;
  • Dzeba, Ivica (Department of Structures, University of Zagreb, Faculty of Civil Engineering)
  • 투고 : 2018.11.14
  • 심사 : 2019.09.26
  • 발행 : 2019.10.10
⟨ 이전 논문 다음 논문 ⟩

초록

In the present study, the behavior of steel plate shear walls (SPSW) with variable column flexural stiffness is experimentally and numerically investigated. Altogether six one-bay one-story specimens, three moment resisting frames (MRFs) and three SPSWs, were designed, fabricated and tested. Column flexural stiffness of the first specimen pair (one MRF and one SPSW) corresponded to the value required by the design codes, while for the second and third pair it was reduced by 18% and 36%, respectively. The quasi-static cyclic test result indicate that SPSW with reduced column flexural stiffness have satisfactory performance up to 4% story drift ratio, allow development of the tension field over the entire infill panel, and cause negligible column "pull-in" deformation which indicates that prescribed minimal column flexural stiffness value, according to AISC 341-10, might be conservative. In addition, finite element (FE) pushover simulations using shell elements were developed. Such FE models can predict SPSW cyclic behavior reasonably well and can be used to conduct numerical parametric analyses. It should be mentioned that these FE models were not able to reproduce column "pull-in" deformation indicating the need for further development of FE simulations with cyclic load introduction which will be part of another paper.

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