• Title/Summary/Keyword: 내화성

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Cost Analysis for Fire Protection on Structural Members of Residential Steel Building using Fire Engineering Design (내화설계법에 따른 철골조 아파트의 내화피복비용 연구)

  • Kwon, In-Kyu;Chung, Yeong-Jin
    • Fire Science and Engineering
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    • v.24 no.1
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    • pp.81-89
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    • 2010
  • In general, fire resistance is determined through the building' uses and stories. But recently a fire engineering design that is done by the calculation of design fires from the fire cell and an evaluation of stabilities for structural behavior at fire condition have applied to almost of countries as a major alternative against a prescriptive fire design. To adopt and utilize the fire engineering design into Korea, at first, we evaluated structural stability of 21st stories steel residential building at fire condition through fire engineering design and secondly the fire protection cost was analyzed with fire engineering design method and the prescriptive one, respectively. No fire protection materials for satisfaction of building law at structural members such as columns and beams were needed and about 90 % of fire protection cost was saved.

Survey of Building Structural Elements located at Underground for Improvement of Fire Resistant Performance (건축물 지하 구조부재의 내화성능 개선에 관한 연구)

  • Kwon, In-Kyu
    • Fire Science and Engineering
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    • v.22 no.4
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    • pp.76-84
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    • 2008
  • Researches on fire resistant performance of primary structural elements such as columns and beams located at above the ground have actively been doing than those located at the below the ground from many researchers. But the structural elements such as columns at underground is very important in aspects of not only structural performance but also fire environment. The columns at the basement carry all the structural loads from the above and that means very critical in fire circumstances than that located at above the grounds. To evaluate the fire resistance performance of primary structural elements located at below the ground we conducted several sorts of surveys that contained fire regulations from several countries and structural types, materials and status of passive fire protection methods.

A Study for Structural Stabilities of Beams Built with TMC Fire Resistant Steels by Analytical Method at High Temperatures (해석적 방법에 의한 TMC 건축용 내화강재 적용 보부재의 고온 내력평가 연구)

  • Kwon, In-Kyu
    • Fire Science and Engineering
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    • v.31 no.6
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    • pp.60-66
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    • 2017
  • Steel framed building can be destroyed due to deteriation of structural stabilities in a fire. This leads a TMC Fire Resistant Steels and this study analyzed the structural stabilities such as a deflection and a reduction of maximum load capacity for the structural beams built with a TMC Fire Resistant Steel. In this study the structural stabilities were evaluated using a mechanical properties in high temperatures not only a heat transfer theory but a heat stress anlaysis with a statistically determinated beam and a statistially indeternated one. The results showed that a TMC Fire Resistant Steels demonstrated a little lower those of Fire Resistant Steels.

Decision of the priority of Fire Endurance and Spatting Prevention Efficiency in High Strength Concrete at High Rise Building Work (초고층 건축공사 고강도 콘크리트 골조의 내화 및 폭렬 방지성능 중요도 선정)

  • Baek, Dae-Hyun;Han, Min-Cheol;Han, Cheon-Goo
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2008.11a
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    • pp.804-807
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    • 2008
  • Recently, with the increase of high rise and huge scale building construction, the use of high strength concrete has been increasing. High strength concrete has dense pore structure, which is susceptible to be damaged due to fire attack. For this, many researchers provide proper fire endurance method. In this paper, to provide the priority for selecting fire endurance method in high strength concrete execution, AHP technique is applied based on expert questionnaire. Fire endurance performance efficiency and ordinary performance efficiency was selected for level 1. Fire endurance performance efficiency had larger weight than ordinary one.

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Study on Fire Resistance of Steel Columns made up with CFST by Analysis and Experiment (해석과 실험에 의한 합성강관기둥의 내화성능 연구)

  • Kwon, In-Kyu;Kim, Heung-Youl
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2010.10a
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    • pp.29-32
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    • 2010
  • 콘크리트 충전 강관기둥부재(이하 CFST)는 대칭성을 유지하는 기하학적 특성과 내부에 충전된 콘크리트의 구조 및 내화성능의 향상으로 최근 초고층 건축물의 주요 요소로 활용되는 추세에 있다. 반면 CFST는 실험적 결과에 의존하는 경향을 보이고 있으나 이는 많은 비용과 시간이 소요되는 단점이 있으므로 강재의 고온특성을 적용한 해석적 결과와의 상관성은 매우 중요한 의미가 있다. 따라서 본 연구의 목적은 CFST 내화성능을 해석 및 실험결과를 활용하여 상호 관계를 파악하고자 한다.

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