As one of the important places for teachers and students to study, the university library is a typical public place with major hazards. Therefore, in recent years, how to evacuate safely, effectively, and quickly has become a very hot research topic. However, in case of fire and other emergencies, it is difficult to escape from such a structure that gathers a large number of people. Evacuation efficiency can be significantly improved by increasing broadcast guidelines, adding signs, widening staircases, and other optimization suggestions, which can provide reference for the study of evacuation effects in public places and the improvement of the layout of public facilities.ĭue to rapid economic development, many countries have built large public buildings. The safe evacuation time was 739.275 s, which was shortened to 638.025 s after man-made route planning, a 13.67% increase in evacuation efficiency. The results indicate that evacuation exits 1#, 7#, 13#, 19#, and 23# have the highest utilization rate. Finally, the evacuation situation is compared with that after man-made route planning. Pyrosim software was used to determine the smoke spread, visibility, CO concentration, temperature, and other conditions at each stairway exit in case of fire. According to the “most unfavorable principle,” the location near it was assumed to be where the fire occurred. Second, the evacuation passage with the highest utilization rate was determined through Pathfinder software. First, a Building Information Modeling (BIM) is constructed based on Revit software in 1:1 scale. This study utilizes Revit, Pyrosim, and Pathfinder software to research evacuation of a university library. The situation of safe evacuation in case of fire is very serious. As a typical public place, a university library has a large collection of books with heavy fire load, dense population, and large flow of people.
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