| From the accident characteristics,personnel behavior characteristics,crowd flow characteristics and evacuation space characteristics of commercial buildings,the influencing factors of the evacuation process of commercial buildings are studied.Aiming at the regional space of commercial buildings,a complex network is used to topologically express the evacuation space,and the key nodes of the evacuation space and their spatial correlation are determined.Starting from the mesoscopic scale,a mesoscopic evacuation model of commercial buildings was constructed using Netlogo,a multi-intelligence simulation platform,to study the spatial distribution of people during the evacuation process of commercial buildings,and the influence of evacuation space usage on the evacuation efficiency of individual buildings.The field cell model was used to construct a fire spread probability model.By setting the working conditions,the spatial probability distribution of fire spread in Xidan commercial buildings was given.Combined with the personnel simulation model,the evacuation decision with the lowest personal risk was made,and the simulation based on The evacuation process of the building group under this strategy. |
