Abstract: In order to reduce the probability of congestion, rationally configure the utilization rate of escape exits and enhance the informatization and modernization capabilities of emergency management of high- rise public buildings, this paper uses BIM technology to build a parametric information model, and uses fire dynamics software (Pyrosim, Pathfinder) to perform numerical simulation on the fire scene and evacuation of an academic building, and re plan the evacuation plan. The simulation results show that the evacuation guidance strategy based on information integration and visual analysis will shorten the evacuation duration by 48.04 s and increase the overall evacuation efficiency by 9.72% . The path replanning of BIM technology can further meet the safety and scientific requirements of fire evacuation.

Key words: high- rise building, BIM, fire evacuation, path optimization