Journal of the Korea Concrete Institute (콘크리트학회논문집)

Korea Concrete Institute (한국콘크리트학회)
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A Study on Fire Performance and Heat Transfer of HPC Column with Fiber-Cocktail in ISO Fire under Loading Condition

표준화재 재하조건 Fiber Cocktail을 혼입한 고강도 콘크리트 기둥의 전열 특성 및 화재 거동에 관한 연구

  • Kim, Heung-Youl (Fire & Engineering Service Research Center, Korea Institute Construction Technology) ;
  • Kim, Hyung-Jun (Fire & Engineering Service Research Center, Korea Institute Construction Technology) ;
  • Jeon, Hyun-Kyu (Research Development Team, GS Engineering & Construction Corporation) ;
  • Youm, Kwang-Soo (Research Development Team, GS Engineering & Construction Corporation)
  • 김흥열 (한국건설기술연구원 화재안전연구실) ;
  • 김형준 (한국건설기술연구원 화재안전연구실) ;
  • 전현규 (GS건설(주) 기술연구소) ;
  • 염광수 (GS건설(주) 기술연구소)
  • Published : 2010.02.28
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Abstract

In this study, experimental test and numerical analysis were conducted to investigate the heat transfer characteristics and fiber performance of high strength concrete. The fire characteristics of the high strength concrete that couldn't be obtained through the test due to specific requirements and restrictions were forecast using numerical analysis approach. The outcome from the numerical analysis and the test were compared to verify and improve the reliability of the analysis. A numerical analysis of 80 and 100 MPa high strength concrete cases were carried out to identify the heat transfer characteristics and fire behavior using software, ABACUS (V6.8) From the results of verification experiment, a 25~55% level of beam shrinkage reduction was observed compared to the concrete without Fiber-Cocktail, indicating the improved fire resistance performance, which appeared to be attributable to the function of Fiber-Cocktail that was able to control the heat transfer characteristics and ultimately result in enhancing the fire resistance performance.

이 연구에서는 고강도 콘크리트의 전열특성 및 화재거동을 구명하기 위해 실증실험과 수치해석을 병행하였으며, 화재실험조건 및 제약 상황으로 인해 실험을 통해 도출할 수 없는 고강도 콘크리트의 화재성상은 수치해석을 통해 예측하였다. 이를 위해 수치해석결과와 실험 결과를 비교 검증하여 해석기법의 신뢰성을 확보하였으며, 80 MPa 및 100 MPa의 고강도 콘크리트의 전열특성 및 화재거동을 상용 소프트웨어인 아바쿠스(V.6.8)를 사용하여 수치해석을 수행하였다. 실증실험결과 폭렬저감재를 혼입한 콘크리트의 경우 무 혼입 콘크리트에 비해 표준화재조건에서 약 25~55% 정도의 기둥 수축량이 제어되어 내화성능이 향상되었으며, 이는 섬유혼입으로 인해 콘크리트의 전열특성이 제어되어 기둥부재의 내화성능을 향상시키기 때문이다.

Keywords

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