대한토목학회논문집 (KSCE Journal of Civil and Environmental Engineering Research)

  • 제33권2호
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  • Pages.465-473
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  • 2013
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  • 1015-6348(pISSN)
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  • 2799-9629(eISSN)
대한토목학회 (Korean Society of Civil Engeneers)
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PSC 풍도슬래브에 부착된 내화패널의 내화특성에 관한 실험연구

Experimental Study on the Fire Proofing Characteristic of Fire Resistance Panel that it attaches to PSC Airpit-Slab

  • 이두성 ((주)홍지 기술연구소) ;
  • 배정 ((주)삼부토건 기술연구소) ;
  • 최헌 ((주)경원건축사 사무소 엔지니어링 연구소) ;
  • 민인기 ((주)도화엔지니어링)
  • 투고 : 2012.02.20
  • 심사 : 2013.03.07
  • 발행 : 2013.03.30
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초록

본 연구에서는 터널에서 발생되는 화재로부터 구조물을 보호하기 위해 내화패널이 부착된 프리캐스트 PSC 슬래브의 내화성능을 조사하기 위해 내화실험이 수행되었다. 내화실험은 독일의 RABT(Richtlinien fur die Ausstatung und den Betrieb von stra${\beta}$entunneln) 화재시간-온도곡선을 적용하여 내화성능을 평가하는 것으로 하였다. ITA(2004)에서 제시하는 기준에 따라 내화성능 시험을 수행한 결과, 콘크리트의 손상을 판단하는 위치인 t=0mm의 최대온도는 $367^{\circ}C$로서 손상한계온도 $380^{\circ}C$(ITA 2004)이하였으며, 철근의 손상을 판단하는 위치인 t=25mm의 최대온도는 $239^{\circ}C$로서 손상 한계온도인 $250^{\circ}C$이하로 나타났다. 실험결과로부터, 25mm두께의 내화패널이 부착된 프리스트레스 슬래브 시험체는 내화성능을 가진 것으로 입증되었다.

In this Study, the performance of precast PSC slabs with fire resistance panel for fire resistance of the tunnel system was evaluated by experimentally. The fire test was performed in fire resistance (electric) furnace according to RABT(Richtlinien fur die Ausstatung und den Betrieb von stra${\beta}$entunneln) time heating temperature curve. The test results showed that the measured temperatures at the t=0 mm depth of PSC slab with precast fire resistance panel during a fire was maximum temperature $367^{\circ}C$, lower than $380^{\circ}C$ (ITA 2004), when damage occurs. Also, at the t=25 mm, the maximum temperature was $239^{\circ}C$, which was lower than the damage temperature of rebar, $250^{\circ}C$. From the results, the use of precast fire resistance panel (t=25 mm) improves fire resistance of PSC structures.

키워드

참고문헌

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피인용 문헌

  1. Fire Resistance Performance of Precast Segmental Concrete Lining for Shield Tunnel vol.34, pp.1, 2014, https://doi.org/10.12652/Ksce.2014.34.1.0095