Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Numerical Study on the Fire Damaged Reinforced Concrete Building Structures Considering Influencing Fire Case and Parameters of Columns

화재피해를 받은 철근콘크리트 건축물의 기둥의 영향인자를 고려한 해석적 연구

  • Suh, Yeonwoo (Department of Interior Architecture Design, Hanyang University) ;
  • Son, Hee Ju (Department of Architectural & Urban Systems Engineering, Ewha Womans University)
  • 서연우 (한양대학교 실내건축디자인학과) ;
  • 손희주 (이화여자대학교 건축도시시스템공학전공)
  • Received : 2022.06.29
  • Accepted : 2022.07.22
  • Published : 2022.08.31
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Abstract

Expanding urbanization practices result in high numbers of buildings being developed in city centers. This high building concentration leads to an increased fire risk, resulting in higher casualty rates and increased economic damages compared to fires in the past. The purpose of this study was to analyze the structural behavior of fire-damaged reinforced concrete buildings using analytical methods and to suggest methods of improving fire resistance in the event of a fire. Damage levels were measured using commercial software to apply the finite element method, ABAQUS, and MIDAS GEN to the dataset. Load-deflection curves were calculated using the effective area and moment of inertia of the fire-damaged columns provided by ABAQUS. The results of this analysis indicate that fire-damaged beams with experience greater deflection from indoor fires than they will from outdoor fires. Fires that occurred on the middle floors were more dangerous than those occurring on higher floors, and eccentrically loaded columns experienced more damage than axially loaded columns. The results indicate that these methods accurately predict structural behaviors of fire damaged concrete columns by considering fire exposure area and eccentric loading.

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References

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