Building Fire Safety Analysis and Evacuation Interaction

Building fire is a complex dynamic destroying process. Building fires have some common features. But sometimes they cause different effects due to different objects and different time as well. Building characteristics,human interference,and environmental changing influent building fire features greatly. The dynamic process of building fire is also a dynamic process of interaction among fire expanding,fire defending, aria evacuating. Fractional effective dose approach has been employed to analyze the impact of heat; toxic gas, smoke, and structure failure to evacuees Within the available safety egresses time. Based on building fire safety analysis and building defending system reaction analysis,relations between evacuation interaction and environmental security have been studied with dual impacts of fire threats and defending protection.