Evacuation Simulation Research On Safety Exit In Building Room Under Emergency

With the development of society and economy,the process of highly integrated and large-scale construction of public space has also brought a series of security risks.This is mainly manifested in the complex flow lines of public buildings and pedestrians.In the event of an emergency,major accidents such as congestion and trampling can easily occur,and even this disaster can occur greater.Therefore,it is very important to study the evacuation of people in the public room.This has become an important issue in the study of public safety of buildings.In order to minimize the loss of property and to avoid the casualties of pedestrians in emergencies,we should conduct reasonable safety evacuation design and provide an optimized safety evacuation plan.Based on the cellular automata evacuation model,relevant researches on the design of safe exits for building rooms under emergencies were conducted.The research involved the impact of variables such as the conditions of safe exit in construction rooms,the density of evacuation pedestrians,and the size of the construction room on the safe evacuation of the building,and verified the test in conjunction with building design specifications.Based on Agent-base behavioral evacuation model,this paper studies the psychological state of people in emergencies,and the evacuation pedestrian panic caused by changes in the physical environment of buildings,and introduces the influence of panic psychology on evacuation pedestrians into simulation experiments.This paper applies the psychological impact of pedestrian panic in the simulation of building room safety exits,and proposes reasonable suggestions for the total width of safety exits for different construction room scales in conjunction with architectural design specifications.In combination with the theater examples,the proposal of safe exit location modification was proposed,and the efficiency of theater evacuation was effectively improved.The experiment is more in line with the real situation,and the evacuation optimization scheme is more reasonable and reliable.The research is conducive to improving the scientific evacuation mechanism in emergencies,and providing the best crowd evacuation plan for disaster rescue practice.It can provide a powerful design reference for the architectural design department and crowd evacuation model in the building space.