The Research Of Typical Functional Areas Fire Risk In High-rise Building And Personal Urgent Evacuation

In recent years, fire disaster is one of the most frequently happened and extremely destructive disasters. Researching the high-rise buildings fire disaster's occurrence, development and forecasting its risk is the key to effectively prevent the fire disaster and formulate human urgent evacuation plan .The computer codes for the simulation of fire are currently a fundamental methodology in modern fire research. Modeling and applying the domestic and foreign theory and experimental achievement of the haze proliferation domain in the constructions, and introducing the field model FDS (Fire Dynamics Simulator) developed by NIST (National Institute of Standard Technology). The equations describing the transport of mass ,momentum,and energy by the fire include flows must be simplified to recur the smoke spread and heat transfer processes in fire,so we consider fire as a low Mach number,single-phase,incompressible physical process. This thesis makes use of the field simulation software of FDS and Smokeview to simulate the distribution of temperature in three-dimensional single room fire. After simulating the different situation in which the fire has been placed, we can get a series of numerical result,and give statistical data and data fitting,and then we can get ASET(Available Safe Egress Time).At the same time, the paper studies the selection method of fire load,fire scenario, evacuation number and evacuation path. And it also get RSET (Required Safe Egress Time) by Classic formula. At last, Compared ASET with RSET,the safety status has been assessed.The results achieved in the paper not only provided some bases and directions to the fire protection design of the airdrome storage,but also could be regarded as the reference of fire safety engineering research on other large space buildings.