대한건축학회논문집 (Journal of the Architectural Institute of Korea)

  • 제39권6호
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  • Pages.203-212
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  • 2023
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  • 2733-6239(pISSN)
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  • 2733-6247(eISSN)
대한건축학회 (Architectural Institute of Korea)
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프리캐스트 콘크리트 벽판 수직접합부의 전단성능

Shear Performance of Vertical Joints between Precast Concrete (PC) Wall Panels

  • 서수연 (한국교통대 건축학부) ;
  • 문정호 (한남대 토목.건축공학부) ;
  • 오영훈 (건양대 의료공간디자인학과) ;
  • 윤현도 (충남대 건축공학과)
  • Seo, Soo-Yeon (Division of Architecture, Korea National University of Transportation) ;
  • Moon, Jeong-Ho (Dept. of Architectural and Civil Engineering, Hannam University) ;
  • Oh, Young-Hun (Dept. of Medical Space Design & Management, Konyang University) ;
  • Yun, Hyun-Do (Dept. of Architectural Engineering, Chunnam National University)
  • 투고 : 2023.02.05
  • 심사 : 2023.05.19
  • 발행 : 2023.06.30
⟨ 이전 논문 다음 논문 ⟩

초록

Precast concrete (PC) buildings with wall system are constructed by stacking wall panels and floor slabs, which are typically connected through grouted vertical and horizontal joints. The strength and deformability of vertical joints between PC wall panels play a crucial role in ensuring the integrity of PC wall-type structures. This study presents the test results on the shear performance of vertical joints that were grouted with concrete and reinforced with overlapping U-shaped (loop) bars. Four jointed PC wall panels were constructed and tested under monotonic and cyclic shear loading. Each specimen consists of two PC wall panels, assembled with 170 mm vertical joint and loop bars along the height for casting joint mortar. The deformed bars of 10 and 13 mm were utilized as U-shaped loop bars within the vertical joints. Direct shear tests showed that under monotonic loading, a specimen VJ-10M with 10 mm U-shaped bars exhibited more ductile shear-slip response than the specimen VJ-13M with 13 mm U-shaped bars while the shear strength of VJ13-M is 16 % higher than VJ-10M. Both VJ-10M and -13M specimens show higher shear strength and greater ductility than VJ-10C and -13C specimens loaded under cyclic shear. Furthermore, this study evaluated the existing empirical and shear friction design formulas by comparing predicted strength and measured strength of 192 vertical joint specimens from this study and available literatures.

키워드

과제정보

이 연구는 국토교통부/국토교통과학기술진흥원의 Off-Site Construction 기반 공동주택 생산시스템 혁신기술 개발(과제번호 RS-2020-KA158109) 연구비 지원으로 수행되었습니다.

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