Journal of the Korea Concrete Institute (콘크리트학회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Seismic Performance of Precast Concrete Beam-Column Connections Using Ductile Rod

연성 강봉을 사용한 프리캐스트 콘크리트 보-기둥 접합부의 내진성능

  • Lee, Sang-Jin (Samsung C&T Engineering & Construction Group) ;
  • Hong, Sung-Gul (Dept. of Architecture & Architectural Engineering, Seoul National University) ;
  • Lim, Woo-Young (Dept. of Architecture & Architectural Engineering, Seoul National University)
  • Received : 2014.03.24
  • Accepted : 2014.08.26
  • Published : 2014.12.31
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Abstract

Precast concrete (PC) beam-column connections using ductile rods are proposed for earthquake zone. An existing beam-column connection, two PC specimens designed by considering failure modes and a conventional RC specimen were tested under cyclic loading to evaluate the seismic performance. The specimens were designed to satisfy the requirements of current design code. The variables are the yield strength of longitudinal reinforcing bars of PC beams. The test results showed that the proposed system applying smaller yield strength of the longitudinal reinforcing bars at the PC beams than the ductile rods was satisfied with seismic criteria. The deformation capacity and energy dissipation capacity of the proposed PC beam-column connections were greater than those of the existing DDC system.

지진구역에 적용하기 위한 연성 강봉을 사용한 프리캐스트 콘크리트 (PC) 보-기둥 접합부를 제안한다. 기존의 DDC 시스템을 활용한 보-기둥 접합부, 파괴모드를 고려해 설계된 두 개의 PC 실험체, 그리고 일체형 RC 실험체가 내진성능를 위해 반복하중 하에서 실험하였다. 실험체는 현행 기준을 만족하도록 설계되었다. 변수는 PC 보 주철근의 항복강도이다. 실험결과 제안된 시스템은 내진기준을 만족하는 것으로 나타났다. 제안된 보-기둥 접합부의 변형능력과 에너지소산 능력은 기존의 DDC 시스템보다 우수한 것으로 나타났다.

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References

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