Fire Risk Analysis and Emergency Evacuation Study on Large Comprehensive Building

Abstract

To prevent and control the fire risk of large comprehensive building, taking Jianye shopping plaza as an example, with the analytic hierarchy process (AHP) to establish large comprehensive building fire risk evaluation index system, the final evaluation index and fire risk level of Jianye shopping plaza is calculated by using the security check points and weight of the cumulative.Crowd evacuation time is simulated by using FDS, which can conclude that, in the ideal state, emergency evacuation time is 150 s and 3500 people are evacuated completely. In actual running state investigation, however, it is concluded that researchers were completely evacuated after the 450 s, while only 1500 people have been evacuated in 150 s.Finally, trajectory intersection theory is put forward in two aspects of the fire risk and emergency evacuation measures. Suggestions and measurements are proposed in order to prevent fire in reality and improve the possibilities timely as well as effectively in crowd evacuation after the fire, which are able to guarantee the safety of people.