Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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The Anchorage Performance of Aging Concrete and Post-installed Anchors

노후화 모사 콘크리트와 후설치 앵커의 정착성능에 관한 실험적 연구

  • Kim, Jung-Yun (Dept. of Architecture, Seoul National University of Science and Technology) ;
  • Cho, Seung-Ho (Construction Technology Research Institute, Seoul National University of Science and Technology) ;
  • Roh, Young-Sook (Architectural Engineering Division, School of Architecture Seoul National University of Science and Technology)
  • 김정연 (서울과학기술대학교 일반대학원) ;
  • 조승호 (서울과학기술대학교 건설기술연구소) ;
  • 노영숙 (서울과학기술대학교 건축공학과)
  • Received : 2021.12.17
  • Accepted : 2022.04.05
  • Published : 2022.04.30
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Abstract

An experimental study was conducted on the anchorage performance of post-installed anchors according to aged concrete. An aging simulation was performed by assuming the surface aging depth was 10, 20, 30, 40, 50mm and setting the compressive strength of concrete after 40, 30, and 20 years of construction to 10MPa, 15MPa, and 21MPa. As a result of this experiment, for both the 30-year and 40-year aging simulation groups, the pull-out strength before the aging simulation depth of 30mm showed a difference of less than 10% from the test with a 24MPa compressive strength. The strength decreased rapidly after the simulation depth of 40mm; it was found to show a difference within 20% compared to 18MPa concrete. In addition, the pulling strength increased as the embedding depth of the anchored concrete increased. The verticality of the anchor and the drilling depth of the concrete were affected at the aging simulation depth of 10 to 30mm.

Keywords

Acknowledgement

이 성과는 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(No. 2020R1A2C100666212)

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