• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2017.05a
• /
• pp.50-51
• /
• 2017

The Urban-type building is an building that it relaxed the construction standard and subsidiary facility standard. The most of the urban-type buildings are pilotis, the main case of representing these building's fire risk is the Uijeongbu fire this study investigated to piloti urban type housing risk on the basis of Uijeongbu fire, and we checked structural problem that unable to escape from the rooftop inside the piloti. also, there was confirmed limit to the evacuation of the occupants because the smoke was rapidly transferred to the top layer through inside the electric duct. and when we analyzed smoke flow use of Fire simulation, it was confirmed Available Safety Egress Time that is four minutes of CO.

• Fire Science and Engineering
• /
• v.14 no.4
• /
• pp.1-6
• /
• 2000

With the "Fire Protection Building Plan" of the Building Center of Japan as a sample, actual evacuation plans used for large scaled and multi-storied buildings are analyzed. Sufficient number of samples were classified into 6 categories. For room evacuation, time to pass through the exit was the most critical point for larger spaces and movement time in the room was the key for smaller evacuation object zone and less number of evacuees. Seen from the location of fire breakout point, it was witnessed that the numbers of crowding at the exits of the fire escape staircase are serious for floor level evacuation. For vertical traffic line, it was actually proved that time to fire escaping floor is problem of higher buildings. It was also proved that special evacuation methods are in practical use in many buildings in japan.

• Fire Science and Engineering
• /
• v.33 no.6
• /
• pp.35-42
• /
• 2019

The aim of this study is to investigate the direction of improvement of safety experience education through the analysis of the evacuation time experiment. For the study, test subjects were divided into groups of similar body size and weight. The test subjects were directly experienced four evacuation devices, and the experience time was measured. As a result of the analysis of the total time from the installation of the evacuation device to the escape, the time was measured in the order of Descending Life Line-Tilt-Down Rescue Line-Vertical Escape Chute-air safety mat. In the case of evaluating the evacuation time using evacuation mechanisms, the evacuation time was measured in the order of air safety mat-Tilt-Tilt-Down Rescue Line-Descending Life Line-Vertical Escape Chute. In the first and second experiments of the Descending Life Line, time differences were observed. The escape time using the Descending Life Line was reduced in the second experiment than in the first experiment. As shown in this result, education through experience has shown that behavioral confidence and time can be managed. The conclusion of this study is that the goal of safety education is to minimize human life and property damage. Therefore, in order to bring this effect to more people, it is necessary to make efforts to keep self-safe through experiential education.

• Proceedings of the KSR Conference
• /
• 2007.11a
• /
• pp.371-376
• /
• 2007

This paper describes a study to determine proper escape way interval for the design phase of single bored double track tunnel. Among many methods which determine escape way interval, we choose a QRA(Quantitative Risk Analysis) method. But a different method must be chosen differ from other country because of special design situation of Korea. So, it is necessary to develop a method which considers a special design condition of Korea. Because fire accidents of railway tunnel are a rare event, simulated situation can be produced by CFD simulation and evacuation analysis simulation. However, it is generally difficult to estimate of fatalities from these methods, so a concept of FED is introduced to estimate of fatalities. Quantification process provides effective results for practical design stage and the result were employed in design.

• Journal of computational fluids engineering
• /
• v.7 no.3
• /
• pp.27-34
• /
• 2002

When caught in a fire inside a building or a tunnel the generated smoke is the main cause of the bad visibility, which makes it difficult for a person to find escape route. Therefore of the fire simulation it is required to visualize the simulated results of smoke realistically form a viewpoint of a person caught in a fire. In the present study, developed is a CFD post-processor which can visualize the object through smoke from the results of CFD fire simulation. Examples of some applications of the program are shown in the paper.

• Proceedings of the KSR Conference
• /
• 2003.10b
• /
• pp.271-276
• /
• 2003

In this paper, various hazard factors are reviewed on the train fire accident in railway tunnel and subway. In case studies of systematic risk evaluation on the tunnel fire accident, we have learned the critical fire safety points for accident prevention and damage reduction such as fire-endurance of infrastructure, mortality of heat & toxic smoke, emergency situation control and management of escape requirements etc.. These hazard analysis study will contribute for improving the railway fire-safety and establishing the long-tenn safety management plan.

• Journal of the Korean Society of Hazard Mitigation
• /
• v.5 no.3 s.18
• /
• pp.41-46
• /
• 2005

Establishing special fire flower sensor of automatic fire equipment in tunnel, it is informed perception, croaker suppression realization and danger occurrence item vehicles driver of tunnel entry verge and connection stream tube institution early stage. which must do to cope immediately. In this paper, quick disposal decides to examine about dictionary perception system that is possible method.

• Journal of the Korean Society of Safety
• /
• v.23 no.5
• /
• pp.1-6
• /
• 2008

`SOS', Simulator Of Safety assessment for fire, was developed to simulate fire safety assessment for a structure which is geometrically complex. The program(SOS) is intended to use for searching as well as designing tools to analyse the evacuation safety through a wide range of structure conditions. The computer program has a function which importing FDS's calculating results to each individual resident in the structure. These attributes include a walking speed reduction by producing visibility reduction for each person on the fire. $A^*$ pathfinding algorithm is adopted to calculate the simulation of escape movement, overtaking, route deviation, and adjustments individual speeds in accordance with the proximity of crowd members. This SOS program contributes to a computer package that evaluates the fire safety assessment of individual occupants as they walk towards, and through the exits especially for building, underground spaces like a subway or tunnel.

• Fire Science and Engineering
• /
• v.23 no.2
• /
• pp.49-54
• /
• 2009

The aim of the study intends to investigate the recognition of fire safety of traditional market employee in Masan city and to provide the base data for the fire safety. The results of the study are as follows. The traditional market employee have high interest in fire safety and recognize that the possibility of fire is high in market. The traditional market employee of 46.0% takes fire safety education and preferred self-government merchant association in market as education place. This study shows that the traditional market employee of 41.5% recognize a fire escape route. In order to prevent the fire of traditional market, the strong activity of market fire staff and the periodic fire inspection of fire department are recommended.

• Fire Science and Engineering
• /
• v.24 no.3
• /
• pp.78-85
• /
• 2010

Currently, there are various institutions performing fire investigation and identification, such as fire stations and police stations as well as institutes related to fire safety, etc. And the manpower working at the institutions reaches a large number of persons. But there is no objective index on the expertise of the persons. In this paper, we suggested the examination criteria through job analysis and the enforcement method of the exam system. And we developed suitable exam subjects and exam content specifications for qualification of fire identification and estimation that investigate a fire cause, combustion, escape circumstances and fire facilities at the scene of a fire, survey the fire damage and analysis fire cause, etc. It will increase the public trust to develop national technical qualification items of the fire identification and estimation engineer.