Construction Of High-rise Building Fire Scenario Based On SIR Model

With the continuous development of society,people have higher requirements on the quality of life,which leads to the increasing shortage of urban land.Therefore,in order to relieve this pressure,high-rise buildings have gradually become the first choice of people in urban life.However,because of the complex internal structure of high-rise buildings,the functions of each building are not the same,and the types of flammable materials inside are also diverse.Once a fire breaks out,the spread speed of the fire may reach the point that people can not control in a very short time.Finally,it brings huge personal safety problems and economic property losses to the society and people.Therefore,when a fire accident occurs,it is particularly important to put forward a scientific and reasonable emergency plan.In this thesis,numerical simulation is carried out by Matlab,and combined with relevant theoretical knowledge,the evolution of high-rise building fire scene is studied.Firstly,this paper introduces the research background and significance of the paper,the relevant theories of unconventional emergencies and scenarios,as well as the relevant research results of many domestic and foreign scholars in this field.On this basis,the scene evolution process of the whole event process of high-rise building fire is analyzed.Then,using the relevant theoretical knowledge of complex network and SIR model,and combining with the characteristics of highrise fire,the fire propagation process of high-rise building based on SIR model is proposed.On rate of fire and put out rate of the two major events affecting factors were studied,based on the hit rate of fire and quench rate of different values,the values of different data and initial conditions,the results found that the lower contact rate and increase the rate of extinguish fire can effectively control the development of the fire incident,reduce risk,combined with the related case analysis,the accuracy of the model is verified by.And the TF-IDF algorithm is used to carry out similarity matching of scene elements in the fire scenario database to find the emergency plan with higher matching degree.Based on this,a more scientific and reasonable emergency plan is proposed,which provides a more scientific theoretical basis for the treatment of fire accidents.Finally,summarize the whole text,and put forward the prospect of the future.