목조건축물 방염처리 화재확산 지연효과 화재시뮬레이션 분석 = Fire Simulation Analysis on the Effect of Delaying Fire Spread of Flame Flame-Resistance Treatment for Wooden Building

다국어 초록 (Multilingual Abstract)

As for the fire hazard of cultural properties of wooden structures in Korea, there have been continuous cases of fire loss in national treasures such as Geumsansa Temple in 1986, Guryongsa Temple in 2003, Naksansa Temple in 2005, Changgyeonggung Palace in 2006, Bulguksa Temple in 2007, and Sungryemun in 2008. In this study, structural parts vulnerable to fire spread were identified through fire simulation tool, and the fire hazard in the structural parts before and after flame-retardant treatment was evaluated for Sungnyemun and Bulguksa Daeungjeon, which are open and closed wooden structures, respectively. As a result, no flashover occurred in both Daeungjeon of Bulguksa and Sungnyemun, which had been treated with flame retardant treatment. At 200 seconds after ignition, Daeungjeon of Bulguksa was less than 50MW and that of Sungnyemun was less than 10MW, which was 3.4~6.44 times lower than before flameproofing. and the maximum temperature was below 800 °C, confirming that flame growth was controlled.