Study On Occupants Safety Evacuation Of Performance-Based Design For Megastore Fire

To a certain extent, megastores(or called shopping malls) in modern time have greatly pushed the construction and development of the metropolis, as the most typical integrated services and functions in modern commercial buildings, such as shopping, leisure, entertainment and fitness actions. However, as one of the complex buildings, it has both a crowded level and diversity personnel. Thus, the megastores can not only bring more challenge to the building fire control systems, but also cause more ordeals to the occupants'evacuation. Therefore, the attentions of the fire safety design for the large-scale commercial building have been focused on how to perform fire safety design program reasonably and efficaciously to ensure all occupants'escape successfully.Based on typical algorithm of egress models, specialized studies and comments were conducted on the limitations of the existing evacuation models, combining to the analysis of smoke behaviors in real fires. The influence factors on evacuation behavior and egress models were in-depth analyzed in real fire scenario in the dissertation. The achievements of the study can guide the modification of the current models. Additionally, the achievements can also be used in the fire safety engineering design system, and evaluate the rationality and reliability of the buildings as well.In accordance with the new concept of performance-based fire safety design throughout the paper, "R / ASET" theory is used as the criterion of the study. Finally this paper presents the related examples to illustrate the validity, rationality, scientificity and reliability of the research.