Abstract
In order to obtain the Required Safety Egress Time (RSET) accurately, traditional engineering calculation method of evacuation time has been optimized in this paper. Several principles and fact situations were used to optimize the method, such as detecting principle of the fire detecting system, reaction characteristics of staff being in urgent situation, evacuating queuing theory, building structure and the plugging at the porthole. Taking a three-storey KTV as an example, two methods are used to illustrate the reliability and scientific reasonability of the calculation result. The result is deduced by comparing the error (less than 2%) at an allowable range between two results. One result is calculated by a modified method of engineering calculation method, and the other one is given based on a Steering model of Pathfinder evacuation simulation software. The optimized RSET has a good feasibility and Accuracy.
Highlights
With the development of people's life quality greatly in recent years, places of public entertainment has expanded rapidly
It’s an important subject to promise that everyone in the fire must evacuate to safety places quickly, Required Safety Egress Time is the key factor of fire protection design of buildings
Traditional engineering calculation method of evacuation time has been optimized, based on several principles and fact situations, such as detecting principle of the fire detecting system, reaction characteristics of staff being in urgent situation, evacuating queuing theory, building structure and the plugging at the porthole
Summary
With the development of people's life quality greatly in recent years, places of public entertainment has expanded rapidly. As the typical public places of entertainment, KTV has achieved great success. The complex of internal spatial structure, high personnel density and there are a large amount of flammable and combustible decoration materials indoors. Obvious fire load density support and sustain the fire growth, and go against fire detection, fire fighting and evacuation. It’s an important subject to promise that everyone in the fire must evacuate to safety places quickly, Required Safety Egress Time is the key factor of fire protection design of buildings
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