콘크리트학회논문집 (Journal of the Korea Concrete Institute)

  • 제24권2호
  • /
  • Pages.147-156
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  • 2012
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  • 1229-5515(pISSN)
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  • 2234-2842(eISSN)
한국콘크리트학회 (Korea Concrete Institute)
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철근콘크리트 경사기둥-보 접합부의 거동

Behavior of Reinforced Concrete Inclined Column-Beam Joints

  • 투고 : 2011.11.21
  • 심사 : 2012.01.20
  • 발행 : 2012.04.30
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초록

최근 몇 년간 보-기둥 접합부에 영향을 줄 수 있는 경사기둥을 포함한 비정형 구조 시스템을 가진 초고층 빌딩이 증가하고 있다. 경사기둥-보 접합부에 외력이 작용 시 전단과 휨 모멘트의 분포가 정형화된 보-기둥 접합부와 상이하여 접합부의 파괴모드, 전단강도, 연성능력 및 에너지소산능력이 변화할 가능성이 크다. 이 연구에서는 6개의 철근콘크리트 경사기둥-보 접합부($90^{\circ}$, $67.5^{\circ}$, $45^{\circ}$) 실험을 수행하고 결과를 분석하였다. 실험 결과에 의하면 경사기둥-보 접합부에서 비대칭 파괴가 발생하였으며 수직기둥-보 접합부에 비해서 최대하중과 에너지소산능력이 감소하는 것으로 나타났다. 이것은 경사기둥으로 인해 발생되는 접합부의 상이한 모멘트 분포와 압축력만 받는 수직기둥과 다르게 경사기둥이 압축력뿐 아니라 인장력도 작용하기 때문이다.

In recent years, many high-rise buildings have been constructed in irregular structural system with inclined columns, which may have effect on the structural behavior of beam-column joints. Since the external load leads to shear and flexural forces on the inclined columns in different way from those on the conventional vertical columns, failure mode, resistant strength, and ductility capacity of the inclined column-beam joints may be different than those of the perpendicular beam-column joints. In this study, six RC inclined beam-column joint specimens were tested. The main parameter of the specimens was the angle between axes of the column and beam (90, 67.5, and 45 degree). Test results indicated that the structural behavior of conventional perpendicular beam-column joint was different to that of the inclined beam-column joints, due to different loading conditions between inclined and perpendicular beam-column joints. Both upper and lower columns of perpendicular beam-column joints were subjected to compressive force, while the upper and lower columns of the inclined beam-column joints were subjected to tensile and compressive forces, respectively.

키워드

참고문헌

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피인용 문헌

  1. Performance Evaluation of Steel Moment Frame and Connection including Inclined Column vol.26, pp.3, 2013, https://doi.org/10.7734/COSEIK.2013.26.3.173
  2. A Study on the Development of Non-PC High-Early-Strength Concrete Without Steam Curing vol.14, pp.2, 2014, https://doi.org/10.5345/JKIBC.2014.14.2.156
  3. Behaviour of non-seismic detailed reinforced-concrete beam–column connections vol.170, pp.7, 2017, https://doi.org/10.1680/jstbu.16.00201