| Due to the characteristics of dense personnel,many combustibles and complex building structures in modern university libraries,once a fire occurs,the resulting social impact,property damage and casualties are huge.The indoor fire protection facilities of university libraries are an important line of defense to ensure their fire safety,so the research on the evaluation of fire protection facilities in university libraries is of great significance.Aiming at the current situation of evaluation of fire protection facilities in university libraries,this paper studies the use of spatial analysis method to evaluate the rationality of the spatial location of indoor fire protection facilities,in order to reduce the impact of indoor environment changes on the protection effectiveness of indoor fire protection facilities after the university library is put into use,make up for the shortage of on-site detection,and provide a reference for the research on the safety evaluation of fire protection facilities in university libraries.The main research contents are as follows:1)Through the study of the current laws and regulations related to building fire protection facilities,on-site testing process and related literature,a hierarchical model of evaluation factors of fire protection facilities in university libraries based on spatial analysis is established.The model contains three layers of evaluation indicators and clarifies the scoring rules for each evaluation factor in each layer.Using the natural index scale,combined with the subjective and objective weighting method,the evaluation factors of each layer in the evaluation system are weighted,and finally the evaluation system of fire protection facilities in university libraries based on spatial analysis is obtained.2)By selecting a university library as the research area,combining the specific content of the evaluation system,dividing the evaluation units,and using the method of spatial query to realize the evaluation of the spatial distribution density of fire protection facilities.And combined with the methods of service area analysis and buffer area analysis,the protection scope of fire protection facilities whose protection radius is determined by walking distance and straight-line distance is calculated,so as to judge whether the plane position meets the requirements of the specification.In the threedimensional scene,the rationality of the spatial location of some fire-fighting facilities is determined by the three-dimensional calculation and the analysis of the visual field,the evaluation results of the fire-fighting facilities in the study area are obtained,the evaluation process of the evaluation system of fire protection facilities in university libraries based on spatial analysis and the specific application of the spatial analysis method are clarified,and the feasibility and effectiveness of the evaluation system are demonstrated.3)Through example analysis,it can be concluded that after the university library is put into use,its indoor sofas,tables and chairs,bookshelves and other items and facilities will affect the protection range of indoor fire hydrants,fire extinguishers and manual fire alarm buttons.By using the fractal method of Thiessen polygons to draw the indoor random road network map,it is more accurate to use the method of service area analysis and buffer area to evaluate the safety of its setting location.The evaluation of the spatial location of firefighting facilities in the three-dimensional scene can avoid the complicated and cumbersome measurement work on site,and based on this,targeted control and improvement measures can be put forward for the firefighting facilities of the university library.Figure 39;Table 20;Reference 64... |
