• 한국화재소방학회논문지
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• 제21권1호
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• pp.51-59
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• 2007

본 연구에서는 대구에 위치한 G 지하생활공간을 대상으로 화재하중에 따른 화재성상을 분석하였다. 화재성상 예측시 화재온도나 화재지속시간을 좌우하는 인자인 화재하중 및 환기계수를 파악하기 위하여, 현장방문을 통하여 가연조건을 조사하고 실의 용도별 가연조건에 대하여 각 재료의 단위발열량을 이용하여 화재하중을 산정하였다. 또한, 산정된 실의 화재하중을 변수로 화재성상분석을 위한 6가지 모델의 축소실험을 행하고 화원의 시간에 따른 온도변화와 화원의 온도상승으로 인한 공간내부로의 열유동 분포를 중심으로 화재성상을 분석하였다.

• 한국화재소방학회논문지
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• 제3권1호
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• pp.19-28
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• 1989

It has been recognized that the escape facility planning is very important for effective evacuation of accupants on fire event. The ultimate goal of the escape facility planning is to evacuate occupants rapidly from building fires to the safe areas. In fire event, occupants usually gather, utilize and finally act upon information about state transient of building fire system, which is consisted of components of fire, building and accupant during the ralatively short period of the fire event. That is, occupants' egress behavior is largely dependent upon building fire system. Therefore, comprehensive study for the relationship between building fire system and occupants' egress behavior is needed. This study aims to suggest the pre -occupancy evaluation method of the life safety performance for the architectural design based on prediction of occupants' egress behavior during building fires with computer simulation.

• 대한기계학회논문집B
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• 제32권5호
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• pp.367-373
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• 2008

A series of fire experiments has been conducted to provide an improved understanding of the fire structure of under-ventilated compartment fires. A comprehensive and quantitative assessment of gaseous species from the fire was made in the upper layer of fire in a 40 % reduced scale ISO 9705 fire compartment. The global equivalence ratio (GER) concept was used to characterize the fire behavior for various fire sizes, fuel types and ventilation conditions. The oxygen concentration in the upper layer reached to zero near the global equivalence ratio of $0.4{\sim}0.6$ while the carbon monoxide concentration increases with increasing the global equivalence ratio. Classification parameters of ISO19706 were also compared with the reduced scale experimental data for under ventilation fire.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2013년도 춘계 학술논문 발표대회
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• pp.107-108
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• 2013

In this study, combustibles investigation and fire growth rate experiment were performed for predicting initial fire behavior in buildings. Combustibles investigation was performed for residential buildings, which is most frequently affected by fire in Korea. Spatial characteristics and combustibles properties were separately investigated, and occupied area and layout characteristics of combustibles were identified to produce general layout models. Of the layout models, room was selected for fire test of a single compartment. From this test, fire propagation for each combustible was identified, which was delayed compared to the summed heat release rate of a single combustible.

• 한국화재소방학회논문지
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• 제18권3호
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• pp.108-113
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• 2004

백화점, 할인매장과 같이 불특정 다수가 이용하는 대규모 판매시설은 화재시 방화관리 담당자의 비상대응능력 및 방화관리의 적절성이 내부 공간에 익숙하지 않은 고객의 피난행동에 결정적인 영향을 미치게 된다. 특히 대규모 판매시설의 경우 대부분의 피난계단 등 안전한 피난출구가 평상시 고객이 접근할 수 없는 백스페이스(Back space)에 위치하기 때문에 고객의 안전한 피난을 위해서는 방화관리자에 의한 신속한 피난개시 및 적절한 피난유도가 이루어져야 한다. 본 연구에서는 백화점과 할인매장 방화관리 담당자를 대상으로 한 설문조사를 통하여 방화관리측면에서 피난행동에 영향을 미치는 요인 및 화재 시 방화관리자의 대응행동 특성에 대하여 분석하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 가을 학술논문 발표대회
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• pp.96-97
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• 2021

In the Building Act, performance-based fire safety design is being promoted for institutionalization. The behavior of the structure against fire conditions can be predicted by using the advanced numerical analysis method based on the FEM (Finite Element Method) to predict the entire structural behavior including the behavior of the structure, but there is a limit to expressing the fire properties of the space and predicting the fire properties It is difficult to determine the variables to be transmitted to the FEM (Finite Element Method) model from the fire simulation results using FDS (Fire Dynamics Simulator). Accordingly, the purpose of this study is to introduce the code user's manual for FDS and FEM unidirectional coupling analysis.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2002년도 가을 학술발표회 논문집
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• pp.307-312
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• 2002

This paper deals with structural behavior of reinforced concrete beams under fire and fire damaged condition. The main purpose of this study is to investigate the structural behavior of the beams under high temperature condition and to evaluate the remaining strength of flexural members by exposure time to fire. For this purpose, twelve beam specimens are fabricated and experimented. Ten specimens are exposed to the fire for 1 and 2 hours and to the failure. After being cooled in room temperature, the specimens are loaded to the failure. The research result shows that the main variables of the test, concrete cover and exposure time to fire are much influenced on the structural behavior and the remaining strength.

• Computers and Concrete
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• 제23권4호
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• pp.281-294
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• 2019

The post-fire behavior of structural elements and the cooling process has always been one of the main concerns of the structural engineers. The structures can be cooled at different rates, where they affect the structure's behavior. In the present study, a numerical model has been developed using the Abaqus program to investigate the effect of cooling rate on the post-fire behavior of the CFST column. To verify the model, results of an experimental study performed on CFST columns within a full heating and cooling cycle have been used. In this model, coMParison of the residual strength has been employed in order to examine the behavior of CFST column under different cooling rates. Furthermore, a parametric study was carried out on the strength of steel and concrete, the height of the specimens, the axial load ratio and the cross-sectional shape of the specimen through the proposed model. It was observed that the cooling rate affects the behavior of the column after the fire, and thus the higher the specimen's temperature is, the more effect it has on the behavior. It was also noticed that water cooling had slightly more residual strength than natural cooling. Furthermore, it was recognized from the parametric study, that by increasing the strength of steel and concrete and the load ratio, as well as modifying the cross-sectional shape from circular to square, residual strength of column at the cooling phase was less than that of the heating phase. In addition, with reducing column height, no change was witnessed in the column behavior after the cooling phase.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2003년도 가을 학술발표회 논문집
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• pp.635-638
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• 2003

This paper deals with structural behavior of reinforced concrete beams with high strength under fire and fire damaged condition. The main purpose of this study is to evaluate the residual strength of flexural members by exposure time to fire. For this purpose, six beam specimens are fabricated and experimented. Among the specimens, four specimens are exposed to the fire for 60 and 90 minutes and two specimens are control beam that is not exposed to fire. After being cooled in room temperature, the specimens are loaded to the failure. The research result shows that the main variables of the test, concrete cover and exposure time to fire are much influenced on the structural behavior and the residual strength.

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2008년도 추계학술논문발표회 논문집
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• pp.3-6
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• 2008

Heat release characteristics of live fire load are an important parameter for performance oriented fire safety design of a building. While investigations have been carried out on the fire load and its burning behavior in office, residential and commercial buildings and so on, little effort has been paid for the rational treatment of fire load in bookstore. In this report, burning behavior of typical combustible objects in bookstore are studied by measuring heat release rates of bookshelf with book.