Research On Fire Evacuation And Guidance In Building Based On BIM And GIS Technology

With the development of science and technology,civil construction technology has improved correspondingly,building structures has become more complex,and at the same time meeting people's needs,it has increased the difficulty of maintaining fire safety in buildings.Casualties and economic losses caused by building fires far exceed other types of fires.Therefore,it is of great significance to plan effective fire control routes in buildings before a fire accident occurs.In order to solve the existing problems of fire control in buildings,we conducted in-depth research.Using the advantages of BIM technology modeling,we will refine and informatize the building model,and combine the GIS technology to build a 3D space scene for fire control.We will consider six types of fire control in buildings.Influence factor,and introduce it into the established multi-objective mathematical decision-making model.Based on the comprehensive road resistance as the analysis basis,establish a fire fighting dredging model in the building,add the research on the combustion performance of the components,get the best dredging path,and conduct relevant analysis.The three-dimensional visualization can provide the basis for the fire control guidance in the building.The main research is as follows:(1)Determine the influencing factors of fire control in the building,which are the two major aspects of building structure and fire protection facilities.Use the method of combining expert evaluation and construction of a judgment matrix to change its impact from qualitative analysis to quantitative analysis,and analyze and calculate the fire control in the building.The weight of the impact factor to get its impact on fire control.(2)Based on the modeling of Revit,the core BIM software,considering the multifactor influence of the above two aspects on the fire evacuation in the building,the multiobjective mathematical decision model was introduced.Based on the comprehensive road resistance,the paper analyzes and calculates the fire evacuation model,completes the construction of the optimal evacuation model,obtains the optimal evacuation path,and introduces the combustion performance of components to optimize the model.(3)Use Super Map to analyze 3D space of the grooming path,complete the 3D navigation of grooming path,and conduct detailed evaluation of the process and information of the resulting model and the solved grooming path.Figure 58;Table 22;Reference 115...