Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
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Shear Performance Evaluation of Cast-in Specialty Inserts in Cracked Concrete according to Cyclic Loading Patterns

반복하중 패턴에 따른 균열 콘크리트에 매입된 선설치 인서트 앵커의 전단성능 평가

  • Jeong, Sang-Deock (Division of Architecture and Fire Protection Engineering, Pukyong National University) ;
  • Oh, Chang-Soo (Yang Soo Metals Co., Ltd.) ;
  • Lee, Chang-Hwan (Department of Architectural Engineering, Pukyong National University)
  • Received : 2023.04.24
  • Accepted : 2023.05.25
  • Published : 2023.06.15
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Abstract

Recently, a novel cast-in specialty insert was developed in Korea as an anchor for lightweight pipe supports, including fire-protection pipes. As these pipe supports and anchors play a critical role in transferring loads of fire-protection pipes to structural members, it is crucial to evaluate their seismic performance before applying the newly developed insert. In this study, the seismic shear performance of the insert anchors was evaluated through cyclic loading tests based on the loading protocols of ACI 355.2 and FEMA 461. Initially, five monotonic loading tests were conducted on the insert anchors in cracked concrete, followed by cyclic loading tests based on the monotonic test results. The findings revealed that the insert anchors exhibited negligible decrease in shear strength even after cyclic loading. Furthermore, a comparison of the maximum load and displacement of the insert anchors obtained under the loading protocols of ACI 355.2 and FEMA 461 was performed to investigate the applicability of the FEMA 461 loading protocol for anchor performance evaluation.

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Acknowledgement

본 성과물은 중소벤처기업부에서 지원하는 2021년도 산학연 Collabo R&D사업(No. S3103759)의 연구수행으로 인한 결과물임을 밝힙니다.

References

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