Study On Evacuation Safety Of Fire In Super High-rise Buildings

With the development of society,the number of super high-rise buildings in China has entered the forefront of the world.However,the safety issues caused by fires in super high-rise buildings have become difficult problems that plague people,especially if people in trapped buildings can be evacuated in time.One of the focuses of many scholars at home and abroad.This paper takes Xi'an Greenland Center super high-rise building as the background,and uses the methods of theoretical analysis,computer simulation and fuzzy evaluation to study the evacuation safety of the people after the fire.This article adopts the whole part of the previous research ideas to systematically study the smoke diffusion and evacuation safety of fires in super high-rise buildings.Firstly,taking the representative two areas of a super high-rise building as the research object,four kinds of fire scenes under different working conditions were designed and simulated using FDS simulation software to obtain the general fire sm,oke spread under different fire scenarios.law.Secondly,from the perspective of unsafe behaviors and fire characteristics of human behaviors and objects,combined with the characteristics of super high-rise buildings,the main factors affecting the safety evacuation of fire personnel in the event of a fire were established,and a pattern diagram of personnel safety escape behavior was established and calculated.The persornnel safety evacuation time(ASET)and safety evacuation time(RSET)under different working conditions are analyzed;and the evacuation safety of the personnel is analyzed.Finally,by analyzing the structure of super high-rise buildings and fire protection systems,a fire risk evaluation index system for super high-rise buildings was proposed.Based on the fuzzy analytic hierarchy process,an evaluation model for fire evacuation of super high-rise buildings was established,and the model was evaluated using this model.The architectural structures.According to the actual situation of the super high-rise buildings,several improvement measures and suggestions are proposed to ensure that the fire evacuation system for the super high-rise buildings is safe and effective.The evacuation of personnel in a super-high-rise building does not lead to casualty accidents in a timely manner.Therefore,it is necessary to study the law of fire spread in super-tall buildings and the factors affecting the safety evacuation of personnel.The research of this topic has many guiding significance for the protection of human life and property safety.It also provides important reference value for the fire protection design of super high-rise buildings,the internal emergency evacuation system of the building and the fire fighting and rescue of firefighters.