In general, plant facilities are to large-scale production facilities for oil refining, power generation, and gas . Various raw materials are handled according to the purpose of the facility, and in particular, there are various facilities in Korea that process petrochemical products as raw materials. As most of the raw materials and products handled by these plant facilities are combustible, the potential fire risk at such plant facilities is very high. In this study, the fire risk of plant facilities was evaluated by analyzing the performance degradation of structural members through real experiments and data analysis assuming the ignition of raw materials used in petrochemical plants.