Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Temperature and Stress Analysis of Box Culvert in Fire

화재에 의한 지하공동구의 온도 및 응력해석

  • Kim, Hyun-Jun (Department of Civil & Environmental Engineering, Dankook University) ;
  • Im, Cho-Rong (Department of Civil & Environmental Engineering, Dankook University) ;
  • Yoo, Hyeon-Kyeong (Department of Civil & Environmental Engineering, Dankook University) ;
  • Chung, Chul-Hun (Department of Civil & Environmental Engineering, Dankook University)
  • 김현준 (단국대학교 토목환경공학과) ;
  • 임초롱 (단국대학교 토목환경공학과) ;
  • 유현경 (단국대학교 토목환경공학과) ;
  • 정철헌 (단국대학교 토목환경공학과)
  • Received : 2011.04.19
  • Accepted : 2011.10.31
  • Published : 2011.12.31
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Abstract

This paper has presented a finite element analysis of structural behaviour of box culvert during and after fires. The fire tests were carried out in a furnace on RC slabs using the ISO 834 standard fire curve. The load capacity after cooling of the RC slab that was not loaded during the fire tests was evaluated by means of additional 3 points bending tests. In the past, stress-strain models of concrete under fire loading have been proposed by several researchers. Comparisons are made with the load-displacement relations of RC slabs after fire loading using the existing stress-strain models with temperature, such as Schneider, EUROCODE 2, Lie, Shi and Nan model. By comparing the load-displacement relations, Lie model was found to result in a maximum load about 2.0% higher than that of test. Based on the fire test results of RC slabs, this paper presents an extensive analytical study on the fire response of box culvert during and after fires.

Keywords

References

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