• 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.

• Journal of the Korea institute for structural maintenance and inspection
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• v.22 no.5
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• pp.72-81
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• 2018

Fireproof structures using concrete, built-up panels and dry walls are usually used in walls inside fire compartments. However, demand for glass walls is emerging due to increase in interest in visibility and external appearance. In this study on steel fire resistance walls using insulation glass, fire resistance tests and performance evaluations were conducted on 60 minute fire resistance walls and exterior walls which could be applied to interior fire compartments and 90 minute fire resistance walls which could be applied to curtain walls. According to the tests, the specimens satisfied the required fire resistance performance. The finite element analysis was conducted after the tests to evaluate the fire resistance performance of the glass walls. The analysis results showed that the preliminary evaluation of fire resistance performance would be feasible.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2010.10a
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• pp.337-340
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• 2010

내화구조는 건축물의 주요 구조부재에 대한 화재안전성을 평가하는 것으로, 국제적으로 내화시험 방법은 실제 건축물과 동일하게 부재에 하중을 가한 상태에서 내화시험을 하도록 ISO 등 국제규격에서는 제시하고 있다. 하지만 국내에서는 건축물의 기둥 및 보에 대하여는 대부분 비재하 시험으로 내화구조를 평가하고 있다. 이는 국제적인 성능평가 방법과도 차이가 있을 뿐만 아니라 실제 건축물 구조부재의 조건과도 차이가 있는 실정이다. 본 연구에서는 내화구조 재하성능평가 기준 개선을 위하여, 국내외 내화성능평가기준에 대하여 고찰하고 이를 통하여 내화구조 인정제도 개선을 위한 기초연구자료를 제시하고자 한다.

• Journal of Korean Society of Steel Construction
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• v.25 no.4
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• pp.379-388
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• 2013

This paper aims to experimentally investigate the fire resistance of U-shaped hybrid composite beams protected by spay and paint insulations. Subjected to two and three hours of the Standard ISO fire, the flexural performance of 4.4m beams with/without imposed loadings was examined with respect to failure criteria such as deflection and deflection rate of the mid-span and temperatures measured in the steel section. The results demonstrated that the proposed configuration of the composite beam is able to achieve a very competitive 3-hour fire resistance rating in economical aspects.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2013.04a
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• pp.109-110
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• 2013

국내에서 최초로 장스팬 프리플렉스 합성보에 대한 내화성능을 평가하고 그 결과를 분석하였다. 내화성능평가는 재하시험과 비재하시험을 대상으로 하였으며, 콘크리트 폭렬의 영향성과 뿜칠피복재의 단열효과에 의한 성능확보 요인을 분석하였다. 본 논문은 국내 최장 합성보의 내화구조 인정신청에 따른 성능확인 결과이며, 향후 다양한 합성보 개발에 참고가 될 수 있을 것으로 기대한다.

• 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.

• Journal of the Korea Institute of Building Construction
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• v.15 no.3
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• pp.273-280
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• 2015

In this study, tests were carried out to find out a method to ensure the fire resistance performance of high-performance non-refractory coating CFT columns. For the high performance concrete fabrication with 100MPa, blast furnace slag(BS) and steel and nylon fibers were used. It was found that the partial replacement with BS improved the fire resistance performance of the concrete. Based on the results of lab tests, the large fire test was conducted. For this test, the CFTs with the size of ${\phi}500{\times}4,200mm$ and the reinforcement of SS 400 steel were prepared and they were subjected to a loading condition. It was found that as the level of load increased, the level of fire resistance decreased. For example, In with the loading condition of 2000kN the CFT could resist the fire for over 240 minutes, whereas, with the loading condition of 3,000kN and 4000kN applying to equivalent CFTs, the resisting time against fire were 184 minutes, and 120 minutes, respectively.

• 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.

• Fire Protection Technology
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• s.7
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• pp.13-16
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• 1990

• Proceedings of the Korea Concrete Institute Conference
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• 2008.11a
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• pp.537-540
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• 2008

Tunnel structures are constructed even longer and more extensive these days than they were in the past. Because of this reason, breaking out a large scale of fire in tunnel structures is frequently. Recently, a noticeable event is reported that the temperature of inside of tunnel rises significantly when an oil car detonated in the tunnel and it reached 1,350$^{\circ}$C. It did damage to people who used the tunnel at that time and caused many demaged parts of tunnel to recover. To improve a fire resistance of tunnel, many methods are studied focused refractory concrete and mortar. This study deals with refractory mortar and is a part of initial basic step. In this study mechanical properties are considered before fire resistance test. As result of test for examination of mechanical properties, it is considered that a consistency and strength of refractory mortar in this study are suitable to construct.