Rationality analysis of smoke exhaust systems in a large e-sports stadium

Aiming at the new building type of large e-sports stadium, this paper adopts the fire safety engineering method to evaluate the fire safety of the existing design. Taking a large e-sports stadium as an example，Pathfinder and Pyrosim are used to simulate evacuation and fire, respectively. The congestion problem in the evacuation process is analysed and optimized, and the height, temperature, CO concentration and visibility of the smoke layer are analysed. The required safe escape time and available safe escape time are obtained to judge the rationality of the smoke exhaust system. The results show that the original exit can avoid a large number of casualties, but can not guarantee the safe evacuation of all persons. New exits with appropriate locations and numbers can effectively relieve the evacuation pressure of the congested exit and ensure the safe evacuation of all personnel. The smoke exhaust system of the large e-sports stadium is set reasonably and has a good smoke exhaust effect, which can provide sufficient escape time.