Abstract:

The personnel evacuation performance in fire is an important criterion for evaluating the safety of highrise buildings, which can also help to direct personnel escape. In this paper, the evacuation process in high-rise building fire is divided into 3 phases, namely, the detection, the alarming and the action. Then, the empirical equations are used to obtain the time of detection and action, and the hydraulic model is used to simulate the evacuation process of people on the stairway and to further obtain the time needed for passing through the stairway and the passage. Thus, the evacuation of people is successfully simulated. Moreover, a high-rise teaching building is taken as the object to calculate the danger time and the evacuation time in each teaching time range from Monday to Saturday. As a result, the personnel safe evacuation performance of the building is obtained.

Key words: high-rise building, fire, evacuation time, hydraulic model