Journal of Korean Society of Steel Construction (한국강구조학회 논문집)

Korean Society of Steel Construction (한국강구조학회)
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A Study on the Fire Resistance Capacity of Slimfloor Beam with Asymmetric H Beam

비대칭 H형강을 사용한 슬림플로어 보의 내화성능에 관한 연구

  • 한상훈 (한국건설기술연구원 화재및설비연구센터) ;
  • 최승관 (한국건설기술연구원 화재및설비연구센터) ;
  • 김희주 (한국건설기술연구원 화재및설비연구센터)
  • Received : 2007.05.15
  • Accepted : 2007.08.06
  • Published : 2007.08.27
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Abstract

This paper is a pilot study regarding an experimental and parametric study to investigate the structural behavior of slimfloor beam(ASB) in fire. The objective of this research is to obtain the rational fire resistance design method through understanding the structural behavior of composite members in fire. The flexural capacity of slimfloor section under various thermal conditions is examined on a basis of the strength retention of the materials at elevated temperatures and full bonding assumption. The effect of web thickness and ASB depth to the moment capacity in fire is also examined.

본 연구는 비대칭 H형강을 사용한 슬림플로어 보의 화재시 구조성능에 관한 실험 및 해석적 연구로서, 화재시 본 합성부재의 구조거동을 파악하여 합리적 내화설계의 자료를 얻는 것이 목적이다. 화재실험으로 계획된 여러 변수의 시험체를 제작하고 상온과 고온에서 휨실험을 수행하여 시간에 따른 온도분포, 하중-처짐 관계를 분석하였다. 해석적 방법은 설계된 단면에 대하여 완전 합성을 가정으로, 열전도 해석으로 온도분포를 구하고 재료의 잔존강도를 분할된 메쉬에 입력하여 휨강도를 예측하였다. 웨브의 두께와 깊이를 변수로 하여 슬림플로어 보의 화재시 휨내력을 고찰하였다.

Keywords

References

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