• Title/Summary/Keyword: 내화설계

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A Study on the Fire Resistance Design Guidelines for High-Strength Concrete Structures of AIK (대한건축학회의 구조내화설계 가이드라인에 관한 연구)

  • Kwon, Young-Jin;Shin, Yi-Chul;Lee, Jae-Young
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2008.05a
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    • pp.21-25
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    • 2008
  • It is the aim of this study to investigate the fire resistance design Guidelines for high-strength concrete structure for example compressive strength more than 40Mpa. It is well know that explosive spalling due to fire attack of high strength concrete is related to concrete failure. so, the purpose of this study introduce the fire A Studty on the Fire Resistance Design Guidelines for High-Strength Concrete Structures of AIK for the response of explosive spalling of high strength concrete.

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Study on Fire Resistance of Beams filled with Concrete at Web Through Temperature Analysis and Load-bearing Fire Tests (온도해석과 재하가열시험에 의한 콘크리트 충전 보부재의 내화성능평가에 관한 연구)

  • Kwon, In-Kyu
    • Fire Science and Engineering
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    • v.24 no.6
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    • pp.82-88
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    • 2010
  • Major structural elements such as columns and beams are designed to withstand the vertical and horizontal loads. Futhermore, when the structural elements were engulfed with fire the structural stability should be stand without failure. The beams have been developed in aspects of structural stability but an evaluation of fire performance was not done. So the data of fire resistance performance of beams filled with concrete at web on H-section is not known. The purpose of this paper is to analyse the correlation between temperature analysis and fire test with the beams and to show the fire resistance performance with two methods.

A Study on Compressive Strength of Centrally-Loaded Steel Columns at Elevated Temperatures (중심축 하중을 받는 고온상태 강재기둥의 압축강도에 관한 연구)

  • Yoon, Jong Hwi;Lee, Chy Hyoung;Yoon, Sung Kee
    • Journal of Korean Society of Steel Construction
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    • v.28 no.4
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    • pp.253-261
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    • 2016
  • In order to evaluate compressive strength of centrally-loaded steel column at elevated temperature, new FE analysis techniques and assumptions of model were applied in this study. It also includes comparison with the existing studies, and a new design equation for centrally-loaded steel column at elevated temperature was proposed. The proposed equation was the most accurate of the three design equations(EC3, AISC, proposed equation) when comparing with the coefficient of determination on the simulated results and test results.

A Research Direction of Structural Fire Resistance Design of Steel Structures for Recommendation of PBD in Korea (국내 PBD 기반 설계를 위한 강구조 구조내화설계 구축방향에 관한 연구(II))

  • Kwon, Young-Jin;Kim, Dong-Eun
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2009.04a
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    • pp.264-269
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    • 2009
  • 최근 초고층구조물 및 대공간구조물등에 대한 소방법의 성능설계등이 법제화되어 시행될 예정으로 있으나 화재성상예측등에 대한 기초적인 연구등이 매우 부족한 실정이며 이에따라 성능설계를 실시하기 위한 기반여건이 매우 취약한 조건이다. 특히 강구조건축물의 경우 초고층구조물의 전형적인 구조형식으로서 성능설계에 대한 연구기반이 조속히 필요한 실정이다. 따라서 본고는 전보에 이어 화재하중등과 밀접한 관련이 있는 가연물조사등과 더불어 이에 대한 이웃 일본건축학회의 강구조건축에 대한 성능적 내화설계방법론중 하중편을 조사하여 향후 국내의 화재하중선정을 위한 기초자료로 사용될수 있도록 하였다.

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The Research for the Establishment of Test Method of Durability on Intumescent Coating System (내화도료 내구성 평가 방법 설정에 관한 연구)

  • Choi, Dong-Ho
    • Fire Science and Engineering
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    • v.23 no.1
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    • pp.40-47
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    • 2009
  • Applying fire resistive coating to steel members is one of the general methods to secure fire resistance performance of steel members. And intumescent coating system is currently one of methods giving fire resistance to steel members. Intumescent coating system for fire resistance, however, has undesirable weaknesses that fire resistance performance of steel members is being deteriorated due to cracks and falling-offs of the coverings as time goes after completion of the coverings to the members. So it is necessary to understand changes of the durability and the fire resistance performance of intumescent coating system over a time elapse and to reflect such change properly into the building design and construction. This research is performed to present the test method of durability and the maintenance of intumescent coating system through theoretical investigation of the test method of durability and the guide of maintenance & management of intumescent coating system of several countries, including the Britain, United States, Japan.

Study on the Effective Method of Fire Protection Technology in Railway Tunnel Fire (철도터널 내화성능 기술개발을 위한 내화성능 확보방안에 관한 연구)

  • Park, Kyung-Hoon;Kim, Heung-Yeol;Kim, Hyung-Jun
    • Fire Science and Engineering
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    • v.24 no.4
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    • pp.86-91
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    • 2010
  • In event of a tunnel fire, all kinds of equipment can be destroyed in high temperature that can exceed $1300^{\circ}C$, fatal structural demage can be caused by spalling of concrete structural elements. To make matters worse, there is a high possibility of the secondary damage which can lead to the collapse of the shear resisting structure. Accordingly, it is time that we developed the technology to counter fires in connection with the fire-resistant design of a tunnel structure. To secure the reliability of the fire-resistance performance of a tunnel structure, it is necessary to assess the fire's behavior on every structural element exposed to the fire as well as to calculate the tunnel fire intensity and the quantity of heat released. In this study, we drew out the fire damage range of each structural element of a tunnel and the minimum thickness of concrete cover for each fire-resistant material through some actual experiments of fire behavior on the structural elements of a tunnel.

A Study on the Design Fire Model for Structural Fire Resistant Design in Buildings (건축구조물의 구조내화설계를 위한 설계화재모델에 관한 연구)

  • Kwon, Young-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2019.05a
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    • pp.256-257
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    • 2019
  • Recently, the fire risk of architectural structures is increasing due to the super high - rise and super - size of the buildings. Therefore, the direction of fire safety design tends to change from the existing design to the performance - based design. In particular, domestic fire safety policies are divided into building law and fire fighting law. In case of fire fighting law, performance design is already carried out. Therefore, this study summarizes the prediction formula for fire characteristics among the structural fireproofing design field as shown in Fig. 1 according to this situation, and compares it with the standard method of each country in particular.

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A study on the fire resistance method using FR-ECC in long tunnel (고인성내화모르터(FR-ECC)를 사용한 장대터널 내화안전대책에 관한 연구)

  • Kim, Se-Jong;Kim, Dong-Jun;Kwon, Young-Jin
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.13 no.1
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    • pp.9-18
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    • 2011
  • The spalling phenomenon occurs in high-strength concrete when several factors such as sharp temperature increase, high water content, low water/cement ratio and local stress concentration in material combine in the concrete material. On the basis of the factors, the preventing methods from the spalling are known as reduction of temperature increase, preventing of concrete fragmentation and fast drying of internal moisture. In this study, the reduction of temperature increase was proposed as the most effective spalling-preventing method among the spalling-preventing methods. Engineered cementitious composite for fireproof and repair materials was developed in order to protect the new and existing RC structures form exterior deterioration factors such as fire, cloride ion, etc. This study was carried out to estimate the fire-resisting performance of high strength concrete slab or tunnel lining by repaired engineered cementitious composite (ECC) or fiber reinforcement cemetitious composite (FRCC) under fire temperature curve. and them we will descrike the result of HIDA tunnel in Japan.