[ Article ]

Journal of Korean Society of Steel Construction - Vol. 36, No. 6, pp.345-355

ISSN: 1226-363X (Print) 2287-4054 (Online)

Print publication date 27 Dec 2024

Received 18 Oct 2024 Revised 18 Nov 2024 Accepted 19 Nov 2024

DOI: https://doi.org/10.7781/kjoss.2024.36.6.345

주요부재 손상방지를 위한 엔드플레이트형 무용접 보강 접합부의 내진성능 평가

박수민¹ ; 오상훈²^{, *}

1석사과정, 부산대학교, 건축공학과
2교수, 부산대학교, 건축공학과

Seismic Performance Evaluation of End-Plate Type Non-Welded Reinforced Joints for Major Member Damage Prevention

Park, Su Min¹ ; Oh, Sang Hoon²^{, *}

1Graduate Student, Dept. of Architectural Engineering, Pusan National University, Busan, 46241, Korea
2Professor, Dept. of Architectural Engineering, Pusan National University, Busan, 46241, Korea

Correspondence to: ^*Tel. +82-51-510-7608 Fax. +82-51-514-2230 E-mail. osh@pusan.ac.kr

초록

본 연구는 주요부재의 손상방지를 위해 보-기둥 접합부에서 에너지 흡수형 스티프너를 통한 보강 공법을 다루며, 기존 구조물에서의 접합부 보강안 적용이 용이하도록 현장상황을 고려한 무용접·무천공 접합상세를 제안하였다. 제안 상세에 대한 정적반복가력실험을 수행하고 주요부재의 손상저감 효과를 기술하였으며, EAS 에너지 흡수장치의 성능개선을 위해 유한요소해석을 수행하였다. EAS와 보의 항복강도에 대한 적정내력비 산정을 위해 스티프너의 주요영향인자인 두께에 대한 변수해석 결과, 항복내력비 약 0.34 이하에서 보의 손상이 저감된 것을 확인할 수 있었다.

Abstract

This study addresses a reinforcement method for beam-column connections using Energy Absorption Stiffeners (EAS) to prevent damage to principal structural members such as beams and columns. To facilitate the application of joint reinforcement in existing structures, a non-welded and non-drilled connection detail considering field conditions is proposed. A quasi-static cyclic loading test was conducted to evaluate the damage mitigation effect on principal members, and finite element analysis(FEA) was performed to enhance the performance of the EAS. Through parametric analysis of stiffener thickness, a key influencing factor, the optimal yield strength ratio of the EAS to the beam was determined. The results indicate that beam damage was mitigated when the yield strength ratio was approximately 0.34 or lower.

Keywords:

Reinforced joints, Non-welded connection, Non-drilled connection, Energy absorption, Damage prevention, Strength ratio, End-plate type

키워드:

보강 접합부, 무용접 접합, 무천공 접합, 에너지 흡수형, 손상방지, 내력비, 엔드플레이트형

Acknowledgments

본 연구는 2024년도 산업통상자원부 및 기술평가관리원(KEIT) 연구비 지원으로 수행되었습니다(20017750).

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