Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Seismic Performance Evaluation of Dry Precast Concrete Beam-Column Connections with Special Moment Frame Details

특수모멘트골조 상세를 갖는 건식 프리캐스트 콘크리트 보-기둥 접합부의 내진성능평가

  • 김선훈 (충북대학교 건축공학과) ;
  • 이득행 (충북대학교 건축공학과) ;
  • 김용겸 (신세계건설 미래성장연구소) ;
  • 이상원 ((주)연우건축구조기술사무소) ;
  • 여운용 ((주)윈윈개발) ;
  • 박정은 (아이에 스동서 기술연구소)
  • Received : 2023.05.19
  • Accepted : 2023.07.14
  • Published : 2023.09.01
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Abstract

For fast-built and safe precast concrete (PC) construction, the dry mechanical splicing method is a critical technique that enables a self-sustaining system (SSS) during construction with no temporary support and minimizes onsite jobs. However, due to limited experimental evidence, traditional wet splicing methods are still dominantly adopted in the domestic precast industry. For PC beam-column connections, the current design code requires achieving emulative connection performances and corresponding structural integrity to be comparable with typical reinforced concrete (RC) systems with monolithic connections. To this end, this study conducted the standard material tests on mechanical splices to check their satisfactory performance as the Type 2 mechanical splice specified in the ACI 318 code. Two PC beam-column connection specimens with dry mechanical splices and an RC control specimen as the special moment frame were subsequently fabricated and tested under lateral reversed cyclic loadings. Test results showed that the seismic performances of all the PC specimens were fully comparable to the RC specimen in terms of strength, stiffness, energy dissipation, drift capacity, and failure mode, and their hysteresis responses showed a mitigated pinching effect compared to the control RC specimen. The seismic performances of the PC and RC specimens were evaluated quantitatively based on the ACI 374 report, and it appeared that all the test specimens fully satisfied the seismic performance criteria as a code-compliant special moment frame system.

Keywords

Acknowledgement

이 논문(연구실적물)은 2023학년도 충북대학교 연구년제 지원에 의하여 연구되었음

References

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