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논문 기본 정보

자료유형
학술대회자료
저자정보
김형준 (한국건설기술연구원) 김흥열 (한국건설기술연구원) 박경훈 (한국건설기술연구원) 조경숙 (한국건설기술연구원) 권인규 (강원대학교)
저널정보
한국화재소방학회 한국화재소방학회 학술대회 논문집 한국화재소방학회 2010년도 춘계학술논문발표회 논문집
발행연도
2010.1
수록면
389 - 394 (6page)

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A concrete filled square steel tube (CFT) is composed of the external steel material, which its strength is reduced in fire due to sudden temperature increase, and the internal concrete with high thermal capacity that can ensure the fire resistance performance of the structure. Therefore, research about the influence factors of the structural performance of CFT column is required in order to apply CFT column to a fire resisting structure, and additional research about influence for each condition is also necessary. Among the influence factors, the boundary condition between column and beam is important structurally, and it is one of the major factors that determine overall fire resisting performance. This study performed a fire experiment under loading in order to analyse the influences of CFT column to the boundary condition. As the results of the experiment, fire resistance time of 106 minutes was ensured for the clamped-end condition but 89 minutes for the hinge-end condition in case of the 360 cross section. And, fire resistance time of 113 minutes was ensured for the clamped-end condition but 78 minutes for the hinge-end condition in case of the 280 cross section. The difference in the fire resistance performance according to changes in the boundary conditions showed a tendency that larger change effect on the fire resistance performance was derived from smaller cross section area.

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