Study Of Fire Simulation And Emergency Evacuation In Civil Airport Terminal

In the process of rapid economic development of our country,the civil aviation industry has also developed rapidly.The country is advancing the pace of aviation infrastructure construction,building new international and regional hub airports,renovating and expanding the original arterial airports,and increasing the construction of branch airports.The branch airport group will accelerate the advancement of airports with freight-oriented functions,build freight airport hubs,and improve the synergy between transport aviation and general aviation at the same time,continue to complement the shortcomings of air transportation in our country,enhance the comprehensive capacity of our country’s air transportation and improve the overall strength and competitiveness of air transportation.In this process,the demand and construction of airport terminals will increase day by day.With the popularization of air transportation,the number of passengers will also increase.The airport terminal is responsible for the connection between air flight and ground transportation.As a large-scale transportation hub,it has a large space and a great number of passengers and staff in the terminal.If a fire occurs and the fire is not controlled well,it is easy to cause hazards of people and loss of property.This article studies building fire and fire-fighting related theories,collects relevant research data,and establishes two fire scenarios(departure floor east 1# office area and arrival floor east 1# office area),two fire conditions(no natural smoke exhaust windows and natural smoke exhaust window)terminal model.Use Pyro Sim to carry out fire numerical simulation to study the influence of temperature,toxic gas,smoke and visibility on another floor when a fire occurs in the traffic connection space of different floors,and the influence of natural smoke exhaust windows on the fire under the same fire conditions circumstances,the available safe evacuation time for the scene and the fire condition can be obtained respectively.The emergency evacuation simulation of the terminal building is carried out by Pathfinder software,and the actual evacuation time under three evacuation conditions is obtained,and the necessary safe evacuation time for emergency evacuation is obtained,so as to determine whether people can be safely evacuated to a safe area under the fire environment and evacuation conditions.The results show:(1)A fire near the low-floor traffic connection space will have a greater impact on the high-floor fire threat,and a fire near the high-floor traffic connection space will have a small impact on the low-floor fire threat.(2)Under the same fire conditions,the opening of natural smoke exhaust windows in largespace buildings is beneficial to reduce the value of the threat factors generated by the fire,and can delay the time for the fire to reach the same dangerous standard.(3)The terminal building does not open the airside exit,and opening the gallery bridge as an evacuation facility cannot effectively reduce the emergency evacuation time;at the same time,opening the airside exit and gallery bridge for evacuation can slow the evacuation situation and improve the evacuation efficiency.