Study on Fire Smoke Distribution and Safety Evacuation of Subway Station Based on BIM

A subway station is a confined space, so it very important to evacuate people safely in case of fire. It necessary study and analyze the smoke distribution evacuation ability different layout schemes when fire occurs. Taking as an example, this paper combines BIM (Building Information Model) technology with safety station. First, we optimize public area use establish model. Then, PyroSim software model development locations optimization scheme, determine time takes for CO concentration, temperature visibility reach critical value danger. Finally, established using Pathfinder The results show that shortest under conditions, threat greatest. available safe optimized greater than required is, arrangement can ensure personnel conditions. research serve reference designs similar stations.