Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
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An Experimental Study on Seismic Performance of Reinforced Concrete Beam-Column Retrofitted with Replaceable Steel Haunch System

교체 가능한 강재 헌치 시스템으로 보강한 철근 콘크리트 보-기둥 구조물의 내진성능에 관한 실험적 연구

  • Kim Yoon Sung (Department of Architectural Engineering, Kyung Hee University) ;
  • Kim Min Sook (Department of Architectural Engineering, Kyung Hee University) ;
  • Lee Young Hak (Department of Architectural Engineering, Kyung Hee University)
  • 김윤성 (경희대학교 건축공학과) ;
  • 김민숙 (경희대학교 건축공학과) ;
  • 이영학 (경희대학교 건축공학과)
  • Received : 2024.02.14
  • Accepted : 2024.02.26
  • Published : 2024.03.15
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Abstract

The purpose of this study is to experimentally analyze the seismic performance of beam-column specimens with vertical irregular, which were reinforced with RHS (Replaceable steel haunch system). a steel haunch system. To evaluate the seismic performance of the RHS, three specimens were manufactured and subjected to cycle loading tests. Retrofitted specimens have different beam-upper column stiffness ratio as a variable. The stiffness ratio of beam-upper column were considered to be 1.2 and 0.84. As a result of the test, the specimen reinforced with RHS showed improved maximum load and effective stiffness, and energy dissipation capacity compared to the non-retrofitted specimen with same beam-upper column stiffness ratio. The specimen with 0.84 beam-upper column stiffness ratio showed improved performance than the specimen with 12.

Keywords

Acknowledgement

이 논문은 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(NO. 2020R1A2C2009351, NO. RS-2023-00217322).

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