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Journal of Korean Institute of Fire Science and Engineering 2010;24(2):31-37.
Published online April 30, 2010.
비대칭 슬림플로어 합성보의 내화성능 산정에 관한 해석적 방법 연구
박수영, 박원섭, 김흥열, 홍갑표
1방재시험연구원2한국건설기술연구원3한국건설기술연구원4연세대학교
A Study on the Analytical Method for Fire Resistance Calculation of Asymmetric Slimfloor Beam
Park Soo-Young, Park Won-Sup, Kim Heung-Youl, Hong Gap-Pyo
요약
비대칭 슬림플로어 합성보(Asymmetric Slimfloor Beam, 이하 ASB)는 비대칭 형강의 일부를 콘크리트 슬래브에 삽입한 합성보로서, 유럽에서 개발되었다. 근래 국내에서도 건축물의 층고저감, 물량감소, 내화 성능 증대 등의 목적으로 ASB의 연구가 진행되고 있다. 본 연구에서는 실험을 통하여 ASB의 내화성능을 확인하고, 열전달해석을 통하여 내화성능 시간에서의 모멘트 내력(Moment capacity)을 산정하였다. 그 결과를 바탕으로 방화석고보드와 ASB로 구성된 3시간 내화구조를 선정하고, 내화 성능을 검토하였다.
Abstract
Asymmetric Slimfloor Beam (ASB) is a composite beam developed in Europe whose asymmetric H beam is partially inserted in concrete slab. Recently in Korea, Asymmetric Slimfloor Beam has been studied in order to save the story height of a building, reduce the amount of construction materials and increase the fire resistance of a building. On this study, the fire resistance of Asymmetric Slimfloor Beam was checked by a fire test and moment capacity was calculated at fire resistance time by a heat-transfer analysis. Using the analysis result, 3-hour fire resistance constructions consisted of fireproof gypsum boards and ASB were selected and fire resistances of selected constructions were checked.
Key Words: Asymmetric Slimfloor Beam, Fire resistance, Fire test, Heat-transfer analysis, Moment capacity


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