• Title/Summary/Keyword: 내화성능평가

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An Experimental Study on Fire Resistance Performance Test of Non-loadbearing Ceiling Systems (비내력 천장구조 내화성능평가에 대한 실험적 연구)

  • Choi, Dong-Ho;Kim, Dae-Hoi;Park, Soo-Young
    • Fire Science and Engineering
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    • v.25 no.4
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    • pp.22-27
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    • 2011
  • Fire resistance ceiling system is the structure of which the ceiling installed under the slave of the structure has the fire resistance performance. Because of having the fire resistance performance, fire resistive coatings on steel beams can be reduced and large span structures can be constructed. So, it have advantages of convenience for construction, shorten for construction time and cost reducing. In foreign country, it is general that one system consisting of slave and ceiling is constructed as a fire resistance system. But in Korea, there are no fire resistance ceiling systems thus economical efficiency due to being high-rise and light-weight of structures is not secured. Therefore research and development of nominal fire resistance ceiling systems is necessary. On this study, fire resistances of standard non-loadbearing ceiling systems were assessed and basic informations for developing the fire resistance non-loadbearing ceiling systems were presented.

An Experimental Study on Fire-Resistant Boom (내화용 오일붐의 내화성에 대한 실험적 연구)

  • Yu J.S.;Sung H.G.;Oh J.H.
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.3 no.2
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    • pp.25-32
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    • 2000
  • Fire-resistant boom is one of the most important facilities in in situ homing of spilled oil. Thermal response of a fire-resistant boom to turning is experimentally investigated in this paper by using an electric furnace and a burning test facility. This test facility is composed of a test tank, a fire boom, a hood for inhaling smoke, an incinerator for burning up gases and thermocouples, etc. Thereby a systematic method of approach in small laboratory scale is developed to study the performance of a fire-resistant boom. Burning test is carried out for the fire boom model which has been developed through the present study. It is shown that the present fire boom model has capability to withstand the high temperature around 800℃ and high rate of heat flux on it due to homing. For more realistic experimental environments, larger dimensions in devices and longer time in experiments are recommended in near future.

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A Study on the Fire Resistance Performance Evaluation of Fire Dampers (방화댐퍼의 내화성능평가에 관한 연구)

  • Seo, Hee-Won;Sung, Si-Chang;Choi, Dong-Ho;Kim, Dae-Hoi;Park, Soo-Young
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2010.04a
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    • pp.90-95
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    • 2010
  • 방화댐퍼는 방화구획을 관통하는 덕트에 설치되어 화염의 전파 및 연소확대를 방지하도록 하는 방화설비로서 '건축물의 피난 방화구조 등의 기준에 관한 규칙'에서 구조 및 시험기준에 대해서 규정하고 있으나, 정해진 성능기준이 없으며 방화설비에 있어 가장 중요한 내화성능에 대해서 언급이 없는 등 개정이 필요하다. 본 연구에서는 방화댐퍼의 'KS F2840(방화댐퍼의 내화시험방법)'시험에 대해서 소개하고, 방화댐퍼의 내화시험 사례를 통해 성능 평가방법으로서의 적용 타당성을 검토하였다.

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Development and Performance of Cementitious Materials for Fire Resistance of Tunnel (터널 내화용 시멘트계 재료의 개발 및 성능 평가)

  • Won, Jong Pil;Choi, Seok Won;Park, Chan Gi;Park, Hae Kyun
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.26 no.4C
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    • pp.265-273
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    • 2006
  • This study aims at evaluation of the fire resistance performance of cementitious materials for fire protection of tunnel. For this purpose, the research procedure was divided into three parts. First, base mix proportion with different material type were determined by fire test. Second, the fire test of cementitious materials for fire resistance were performed on base mix proportions to evaluated their performance. Third, the performance of cementitious materials for fire resistance compare to the target value and existing commercial products. If the performance of developed cemetitious materials for fire resistance were satisfied the target value, this studies were stopped. But, this research return to first process if the performance of cementitious materials for fire resistance are not satisfied the target value. As a result of this study, the spalling did not happen for develop and existing commercial product. Also, developed cementitious materials for fire resistance are shown with excellent compressive strength, flexural strength, and bond strength, because it used a height density aggregate. And developed cementitious materials has sufficient resistance for fire.

A Study on Fire Resistance Using The Scale Experiments (축소실험을 통한 내화시험에 관한 연구)

  • Moon, Sung-Woong;Jeon, Jun-Pyo;Rie, Dong-Ho
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2011.04a
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    • pp.176-179
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    • 2011
  • 국내에서는 방화구획을 설정하여 화재 확산 방지 및 재실자의 대피 시간을 확보하고 있다. 방화구획에 설치되는 방화문은 방화문의 내화시험방법(KS F 2268-1)에 따라 시험을 거쳐 성적서를 발급 받은 제품에 대해 설치하도록 의무화 하고 있다. 그러나 본 시험방법은 시험체 제작, 설치 및 의뢰시험비용 등 상당한 비용이 소요될 뿐 아니라 제작, 설치, 시험에 소요되는 시간 또한 길다. 축소실험장치는 목재방화문 개발 중 재료의 내화성능을 평가할 장치로 개발되었으며, 표준시간-가열 온도곡선을 상회하는 가열실험을 통해 재료의 내화성능 결과를 얻을 수 있다. 본 실험에서는 난연 또는 불연성능이 뛰어난 재료를 대상으로 실험하였으며, 그 결과 난연목재는 5분, 마그네슘보드와 내화 직물원단은 60분의 내화성능을 갖춘 것으로 확인되었다. 이 결과를 토대로 방화문의 내화시험방법과 상관성을 도출하여 목재방화문 개발의 지표로 활용 가능하게 되었다.

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Fire Resistance Performance of Load Bearing Hybrid Panel Infilled with Light-weight Formed Mortar (복합스터드에 경량기포모르터를 충전한 내력벽체의 내화성능 비교연구)

  • Park, Keum Sung;Bae, Kyu Woong;Kang, Hyun Sik;Lim, Seo Hyung
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.11 no.2
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    • pp.109-116
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    • 2007
  • The purpose of this paper is to evaluate the fire resistant performances of load-bearing wall using both composite and steel stud panel infilled with light-weight formed mortar under axial loading according to KS F 2257(1999). The minimum requirement of 2 hours fire resistant rating is needed for the residential and commercial buildings under the fire regulation of Korea. From test results, it is found that two types of specimen composed of the hybrid stud and steel stud panel filled with light-weight formed mortar fited in with the requirement of 2 hours fire resisting rate for the load-bearing wall. In the conclusions, the specimen with hybrid stud shows predominating fire-resistant performance on the adiabatic effects rather than that of the steel stud specimen.