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Fire Resistance of U-shape Hybrid Composite Beam

신형상 U형 하이브리드 합성보의 내화성능에 관한 연구

  • Kim, Sung Bae (The Naeun Structural Engineering) ;
  • Kim, Sang Seup (School of Architectural Engineering, The Korea University of Technology & Education) ;
  • Ryu, Deog Su (The Naeun Structural Engineering) ;
  • Choi, Seng Kwan (School of the Built Environment, University of Ulster)
  • Received : 2013.03.17
  • Accepted : 2013.07.24
  • Published : 2013.08.27

Abstract

This paper aims to experimentally investigate the fire resistance of U-shaped hybrid composite beams protected by spay and paint insulations. Subjected to two and three hours of the Standard ISO fire, the flexural performance of 4.4m beams with/without imposed loadings was examined with respect to failure criteria such as deflection and deflection rate of the mid-span and temperatures measured in the steel section. The results demonstrated that the proposed configuration of the composite beam is able to achieve a very competitive 3-hour fire resistance rating in economical aspects.

Keywords

fire resistance performance;spray-on fire protection;fireproof paint;composite beam;hybrid forming beam(HyFo beam)

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  2. Evaluation of Fire Resistance of Unprotected Concrete-filled Rectangular Steel Tubular Columns under Axial Loading vol.26, pp.4, 2014, https://doi.org/10.7781/kjoss.2014.26.4.323