Journal of the Computational Structural Engineering Institute of Korea (한국전산구조공학회논문집)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
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Moment-Curvature Relationship of RC Structural Walls with Confined Boundary Elements Using Pre-Fabricated Rectangular Continuous Hoops

사각 연속횡보강 선조립철근으로 단부횡보강된 RC 구조벽체의 모멘트-곡률 관계

  • Kim, Hui-Do (School of Architecture, Soongsil University) ;
  • Lee, Seung-Hyun (School of Architecture, Soongsil University) ;
  • Cho, Jae-Hui (School of Architecture, Soongsil University) ;
  • Kim, Sung-Hyun (Institute of Construction and Environmental Engineering, Seoul National University) ;
  • Kang, Su-Min (School of Architecture, Soongsil University)
  • 김희도 (숭실대학교 건축학부) ;
  • 이승현 (숭실대학교 건축학부) ;
  • 조재희 (숭실대학교 건축학부) ;
  • 김성현 (서울대학교 건설환경종합연구소) ;
  • 강수민 (숭실대학교 건축학부)
  • Received : 2021.12.03
  • Accepted : 2021.12.20
  • Published : 2022.02.28
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Abstract

Because boundary confinement details proposed in the current design standards are significantly inferior in workability and production quality, it is necessary to develop boundary confinement details of RC structural walls that are capable of ensuring seismic performance and workability. With the recent development of the wire rod manufacturing technology, various pre-fabricated continuous hoop details can be manufactured. In this study, an analysis was conducted on the moment-curvature relationship of RC structural walls to which the pre-fabricated continuous hoop details were applied. According to the nonlinear cross-section analysis, the RC structure wall to which the details of the pre-fabricated continuous hoop details are applied can ensure seismic performance as the area of the pre-fabricated continuous hoop increases. Based on these research results, when applying the pre-fabricated continuous hoop in detail, it is necessary to secure the area of the pre-fabricated continuous hoop as much as the area of the existing boundary confinement.

현 설계기준에서 제시한 단부횡보강 상세는 시공성과 생산품질이 현저히 떨어지므로 내진성능과 시공성을 확보할 수 있는 RC 구조벽체의 단부횡보강 상세 개발이 필요하다. 최근 선재 제작기술의 발전으로 다양한 선조립철근의 제작이 가능해지고 있으며 특히 다양한 연속횡보강 철근 상세의 제작이 가능하게 되었다. 본 연구에서는 사각 연속횡보강 선조립철근 단부횡보강 상세를 적용한 RC 구조벽체의 모멘트-곡률 관계에 대한 분석을 진행하였다. 비선형 단면해석에 의하면 사각 연속횡보강의 상세를 적용한 RC 구조벽체는 사각 연속횡보강 영역의 면적이 증가할수록 내진성능을 확보할 수 있다. 이러한 연구결과에 근거하여 사각 연속횡보강 선조립 철근의 상세 적용시, 단부횡보강 영역의 면적만큼 사각 연속횡보강 영역의 면적을 확보해야 한다.

Keywords

Acknowledgement

본 연구는 한국과학재단이 주관하는 중견연구자지원사업(No. 2021R1A2C1012314)의 지원을 받아 수행되었습니다.

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