Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
권호 표지

Strength Properties of RC Slabs under Elevated Temperatures from Fire

화재시 온도증가로 인한 RC 슬래브의 강도 특성

  • Im, Cho-Rong (Civil & Environmental Engineering, Dankook University) ;
  • Chung, Chul-Hun (Civil & Environmental Engineering, Dankook University) ;
  • Kim, Yu-Seok (Civil & Environmental Engineering, Dankook University)
  • 임초롱 (단국대학교 토목환경공학과) ;
  • 정철헌 (단국대학교 토목환경공학과) ;
  • 김유석 (단국대학교 토목환경공학과)
  • Received : 2010.06.15
  • Accepted : 2010.08.05
  • Published : 2010.08.31
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Abstract

The fire resistance performance of 2 RC slabs after exposure to the ISO-834 fire standard without loading has been experimentally investigated. A Comparison is made of the fire resistance performance between RC slabs without PP(polypropylene) fibers and RC slabs with PP fibers. From the fire test results, the presence of PP fibers in RC slabs can reduce spalling and enhance their fire resistance. Until now, the determination of fire resistance of reinforced concrete(RC) slabs has essentially been based on tabulated data. According to ACI 216 code and EUROCODE 2, the design of concrete structures is essentially based on tabulated data for appropriate concrete cover and various fire durations. From the comparison between fire test results and codes, current fire design provisions of codes such as the ACI 216 and the EUROCODE 2 are unconservative for estimating mechanical properties of RC slabs at elevated temperatures.

Keywords

References

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