Abstract
In the modern society, ultra high-rise buildings gradually prevails in large cities, but they are always suffering severe losses in fire, terrorist attacks and other emergencies so that the problem of ultra high-rise building evacuation has become a new hot spot area. In this paper, by the simulation software AnyLogic, which is based on the social force model, an evacuation process in the stairwell which occupies an important position in ultra high-rise building evacuation is simulated, therefore many factors involved in ultra high-rise building evacuation are studied, including the slope gradient of stairs, evacuation speed, and so on. In addition, the effects of these factors are investigated and some appropriate recommendations are made. By studying the personnel density fluctuation of the evacuation process, the corner and stair areas on each floor are regarded as the priorities for research, and then the movements of personnel and the effects of influence factors in both two regions are separately analyzed and compared. Finally several characteristics of personnel evacuation process in ultra high-rise building are found.
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