Fire Science and Engineering (한국화재소방학회논문지)

Korean Institute of Fire Science and Engineering (한국화재소방학회)
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Evaluation Study on the Mechanical and Thermal Properties of High Strength Structural Steel at High Temperature

고강도 구조용 강재의 고온물성 평가연구

  • Kwon, In-Kyu (Department of Fire Protection Engineering, Kangwon National University)
  • Received : 2013.04.22
  • Accepted : 2013.06.14
  • Published : 2013.06.30
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Abstract

Recently, building constructions have been developed toward high-rise, long span, and multi-complexed using the high strength materials, optimized section. But the structural behavior of steel structural members built with a high strength steel at fire condition is not clarified because of lacking of information of related references such as mechanical and thermal properties at high temperature situation. In this paper, to evaluate the structural stability of member or frame of steel framed building at fire situation through the engineering method, the mechanical and thermal experimental coupon tests have conducted at various high temperatures and the comparison to those of ordinary strength steels were done.

최근 건축물은 재료의 고강도화 및 단면형상 최적화를 바탕으로 초고층화, 장대화 및 복합화 추세로 발달하고 있으나, 화재 위험성에 의한 구조적 거동에 관한 연구는 매우 미진한 실정이다. 특히 고강도 구조용 강재로 구성된 강구조 건축물의 구조부재에 대한 화재 노출 시 거동평가를 위한 기초적인 자료조차 거의 없는 실정이다. 따라서 본 연구에서는 고층 강구조 건축물에 활용되고 있는 고강도 구조용 강재의 고온 시 구조적 내력 평가를 위한 기계적 특성과 열적 특성 자료 도출을 목적으로 항복강도, 탄성계수 그리고 열전도율 등을 측정하고, 이를 일반 구조용 강재의 특성과 비교분석을 통하여 상대적 안전성을 평가한다.

Keywords

References

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Cited by

  1. Evaluation of Structural Stability at High Temperatures for Beams Made of High Strength Structural Steels (SM 570) by Analytical Method vol.28, pp.3, 2014, https://doi.org/10.7731/KIFSE.2014.28.3.049
  2. Comparative Study of Fire Resistance Performance for Long Span Beams Constructed with High Strength Submarine Structural Steels According to Boundary Conditions vol.723, pp.1662-9795, 2016, https://doi.org/10.4028/www.scientific.net/KEM.723.824
  3. Experimental Study on Behavior of H-Beam with End-plate Connection at High Temperature vol.30, pp.4, 2018, https://doi.org/10.7781/kjoss.2018.30.4.175