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The Study on the Fire Resistance Performance of the CFT (Concrete filled Tube) Column According to the Concrete Compressive Strength and Load Ratio  

Cho, Kyung-Suk (한국건설기술연구원)
Kim, Heung-Youl (한국건설기술연구원)
Kim, Hyung-Jun (한국건설기술연구원)
Kwon, In-Kyu (강원대학교)
Publication Information
Fire Science and Engineering / v.24, no.2, 2010 , pp. 44-51 More about this Journal
Abstract
This study, to develop the technology of the fire resistance design of CFT structure based on fire resistance performance design, was suppose to use as basic data for performance design through a measure of temperature and deformation of the CFT specimen as parameter is the concrete compressive strength and load ratio. In accordance with KS F 2257-1 and 7, 24 MPa and 40 MPa and the load ratio of 0.9, 0.6 and 0.2 were imposed on a square column and as a result of evaluating in accordance with the fire resistance criteria, in case of 24 MPa, the fire resistance performance was improved by 73 minutes when the load ratio was reduced by 0.3. And when it comes to 40 MPa, the fire resistance was 31 minutes and 180 minutes when a load ratio was 0.6 and 0.2, respectively. As a result of evaluating fire resistant performance depending on variation of internal concrete strength, it proved that the higher the strength the lower the fire resistance.
Keywords
Concrete filled tube column; Fire resistance; Load ratio;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Gabriel Alexander Khoury, Effect of fire on concrete and concrete structure, Imperial College, London, UK(2000).
2 V.K.R. Kodur, Achieving fire resistance through steel-concrete composite consruction, ASCE(2005).
3 서울시립대학교, 콘크리트 충전강관(CFT)구조의 내화성능 설계기술 개발, 건설기술혁신사업(2009).
4 최성모, 최영환, 정경수, CFT 구조기술 개발 및 적용사례, 대한건축학회지, Vol.50, No.12, pp.28-33 (2006).
5 일본 신도시하우징협회, CFT구조의 내화설계지침 (2004).
6 박수희, 류재용, 정경수, 최성모, "일정 축력을 받는 콘크리트충전 각형 강관기둥의 내화성능 평가", 한국강구조학회 논문집, Vol.19, No.6, pp.703-714(2007).
7 김흥열, 서치호, 신현준, "고온 영역에서 강도영역별 콘크리트의 역학적 특성에 관한 실험적 연구", 대한건축학회 논문집(구조계), Vol.21, No.7, pp. 55-66 (2005).
8 박수희, 송경철, 정경수, 김흥열, 원용안, 최성모, "콘크리트충전 강관기둥의 내화성능에 대한 구성재료(강재, 콘크리트)의 고온특성 영향", 대한건축학회 학술발표대회 논문집, Vol.28, No.1, pp.325-328(2008).
9 김규용, 김영선, 이태규, 강선종, 김무한, "고강도콘크리트를 충전한 CFT 기둥의 내화성능 평가에 관한 실험적 연구", 대한건축학회논문집(구조계), Vol.24, No.8, pp.147-154(2008).