Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Cyclic Loading Test and an Analytical Evaluation of the Modular System with Bracket-typed Fully Restrained Moment Connections

브래킷형 완전강접합 모듈러 시스템의 반복가력실험과 해석적 평가

  • 박재성 (한국기술교육대학교 창의융합공학협동과정) ;
  • 강창훈 (현대엔지니어링(주) 건축구조설계팀) ;
  • 손수덕 (한국기술교육대학교 디자인.건축공학부) ;
  • 이승재 (한국기술교육대학교 디자인.건축공학부)
  • Received : 2017.10.04
  • Accepted : 2018.03.06
  • Published : 2018.03.30
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Abstract

Key factors that ensure competitiveness of modular unit include consistent high quality and connection condition that ensures high structural performance while minimizing the overall scale of the on-site process. However, it is difficult to evaluate the structural performance of the connection of modular unit, and its structural analysis and design method can be different depending on the connection to its development, which affects the seismic performance of its final design. In particular, securing the seismic performance is the key to designing modular systems of mid-to-high-rise structure. In this paper, therefore, the seismic performance of the modular system with bracket-typed fully restrained moment connections according to stiffness and the shapes of various connection members was evaluated through experimental and analytical methods. To verify the seismic performance, a cyclic loading test of the connection joint of the proposed modular system was conducted. As a result of this study, theoretical values and experimental results were compared with the initial stiffness, hysteresis behavior and maximum bending moment of the modular system. Also, the connection joint was modeled, using the commercial program ANSYS, which was then followed by finite element analysis of the system. According to the results of the experiment, the maximum resisting force of the proposed connection exceeded the theoretical parameters, which indicated that a rigid joint structural performance could be secured. These results almost satisfied the criteria for connection bending strength of special moment frame listed on KBC2016.

Keywords

Acknowledgement

Supported by : 한국연구재단

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