Structural Engineering and Mechanics

  • 제73권5호
  • /
  • Pages.543-554
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  • 2020
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Seismic performance of RC columns with full resistance spot welding stirrups

  • Yu, Yunlong (School of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Dang, Zhaohui (School of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Yang, Yong (School of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Chen, Yang (School of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Li, Hui (School of Civil Engineering, Xi'an University of Architecture & Technology)
  • 투고 : 2019.06.22
  • 심사 : 2019.10.19
  • 발행 : 2020.03.10
⟨ 이전 논문 다음 논문 ⟩

초록

This paper aims to investigate the seismic performance of RC short columns and long columns with welding stirrups. Through the low-cyclic horizontal loading test of specimens, the seismic performance indexes such as failure modes, hysteretic curve, skeleton curve, ductility, energy dissipation capacity, stiffness degradation and strength degradation were emphatically analyzed. Furthermore, the effects of shear span ratio, stirrups ratio and axial compression ratio on the performance of specimens were studied. The results showed that the seismic performance of the RC short columns with welding stirrups were basically the same as that of the RC short columns with traditional stirrups, but the seismic performance of RC long columns with welding stirrups was better than that of RC long columns with traditional stirrups. The seismic performance of RC short columns and long columns with welding stirrups could be improved by increasing stirrup ratio and shear span ratio and reducing axial pressure ratio. Moreover, the welding stirrup have the advantages of steel saving, industrialization and standardization production, convenient construction, and reducing time, which indicated that the welding stirrups could be applied in practical engineering.

키워드

참고문헌

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피인용 문헌

  1. Seismic behavior of prefabricated high-strength concrete columns confined by overlapping stirrups vol.79, pp.5, 2020, https://doi.org/10.12989/sem.2021.79.5.579