• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2008년도 춘계학술논문발표회 논문집
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• pp.61-64
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• 2008

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. This study is designed to understand changes in fire resistance performance of intumescent coating system through follow-up tests on temperature of unexposed surface for the domestic intumescent coating system.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2008년도 춘계학술논문발표회 논문집
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• pp.69-72
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• 2008

This study is designed to understand changes in fire resistance performance of intumescent coating system through follow-up tests on temperature of unexposed surface for the domestic intumescent coating system by environmental testing procedure.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2008년도 춘계학술논문발표회 논문집
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• pp.65-68
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• 2008

Intumescent coating system for fire resistance 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. This study is designed to understand changes in durability of intumescent coating system through follow-up tests on bond strength and thickness for the domestic intumescent coating system.

• 한국화재소방학회논문지
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• 제23권1호
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• pp.40-47
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• 2009

현재 철골부재의 내화성능 확보를 위해서 다양한 내화피복방법이 적용되고 있으며, 따라서 이중 하나가 내화도료 피복 시스템의 적용이다. 하지만 내화도료 시스템의 경우 시공후 시간경과에 따라 균열, 탈락 등에 의한 내구성 저하 및 이에 따른 내화성능 상실의 우려가 있으며, 이에 따라 건축 설계 및 시공 초기에 시간경과에 따른 내구성 변화를 파악하여 이에 대비할 수 있는 평가방법 및 유지관리 등에 대한고려가 필요하다. 이에 본 연구에서는 시간경과에 따른 내화도료의 내구성 평가 및 이에 대한 관리방안을 제시하기 위하여 영국을 비롯한 기타 국가의 관련 자료를 조사하여 국내에 적용할 수 있는 내화도료 내구성 평가방법 및 유지관리에 필요한 기초 자료를 제시하도록 하였다.

• Steel and Composite Structures
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• 제37권5호
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• pp.589-603
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• 2020

This paper presents an investigation of the thermal performance of composite floor slabs with profiled steel decking exposed to fire effects from floor. A detailed finite-element model has been developed by representing the concrete slab with steel decking under of it and steel beam both steel parts protected by intumescent coating. Although this type of floor systems offers a better fire resistance, passive fire protection materials should be applied when a higher fire resistance is desired. Moreover, fire exposed side is so crucial for composite slab systems as the total fire behaviour of the floor system changes dramatically. When the fire attack from steel parts, the temperature rises rapidly resulting in a sudden decrease on the strength of the beam and decking. Herein this paper, the fire attack side is assumed from the face of the concrete floor (top of the concrete assembly). Therefore, the heat is transferred through concrete to the steel decking and reaching finally to the steel beam both protected by intumescent coating. In this work, the numerical model has been established to predict the heat transfer performance including material properties such as thermal conductivity, specific heat and dry film thickness of intumescent coating. The developed numerical model has been divided into different layers to understand the sensitivity of steel temperature to the number of layers of intumescent coating. Results show that the protected composite floors offer a higher fire resistance as the temperature of the steel section remains below 60℃ even after 60-minute Standard (ISO) fire and Fast fire exposure. Obtaining lower temperatures in steel due to the great fire performance of the concrete itself results in lesser reductions of strength and stiffness hence, lesser deflections.

• 방재기술
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• 통권50호
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• pp.15-26
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• 2011

• 대한조선학회논문집
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• 제59권1호
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• pp.29-38
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• 2022

In offshore installations, fires cause the structure to lose its rigidity and it leads to structural integrity and stability problems. The Passive Fire Protection (PFP) system slows the transfer rate of fire heat and helps prevent the collapse of structures and fatality. Especially, intumescent epoxy coating is widely used in the offshore industry, and not only is the material cost expensive, but it also takes a lot of time and cost for construction. Several studies have been conducted on the efficient application and optimal design of the PFP system. However, the mechanical properties and the strength of the PFP material have not been considered. In addition, researches on the correlation between the thickness of PFP and the structural behavior were insufficient. Therefore, this study aims to analyze the thermal and mechanical effects of the PFP on the structure when it is applied to the structural member. In particular, it is intended to resolve the change in strength characteristics of the structural members as the thickness of the PFP increases.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2007년도 춘계학술논문발표회 논문집
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• pp.30-36
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• 2007

• 대한기계학회논문집 C: 기술과 교육
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• 제1권1호
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• pp.49-57
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• 2013

해양플랜트의 설계는 위험요인을 정량적 위험성평가를 통해 계량화하여 그 결과를 설계에 반영하는 것이 일반화되어 있다. 대표적인 위험요소인 화재 위험에 대해서도 이는 마찬가지다. 계량화된 화재 위험에 대해 작업자들이 탈출하는 동안 안전설비의 기능을 유지하고 발생된 화재가 더 크게 전이(escalation)되는 것을 방지하는 것이 방화대책의 궁극적인 목적이다. 본 논문에서는 대표적인 방화대책인 능동방화대책과 수동방화대책의 적용사례를 살펴보고 수동방화대책의 설계기법들을 소개한다. 수동방화대책은 효과적인 방화기법이지만 초기 투자비가 많이 소요되고 운용과 유지보수에 애로사항이 크다. 따라서, 최근 들어 발주자들은 수동방화대책을 최적화하도록 해양플랜트 설계자에게 요청하는 추세이다.