大空间建筑防火分区方法研究

针对目前防火分区划分标准单一且理论依据匮乏的问题,提出了基于火灾风险评估的防火分区方法,列举了传统防火分区方法与性能化设计存在的一些问题,阐述了基于火灾风险评估的防火分区方法具体实施过程,通过对比证明了基于火灾风险评估的防火分区方法有充分理论依据同时有实践应用性.使用FDS(Fire Dynamic Simulation)软件仿真某防火分区起火后烟气蔓延情况及防火分区内人员疏散所用的时间,以仿真实验数据为依据分析了此防火分区大小的合理性,同时验证了基于火灾风险评估的防火分区方法的可行性.若在大空间建筑中使用此方法划分防火分区,其优越性将得到很好的体现,这一方法将为相关的科研人员带来新的思考.

Research of Fire Compartment Method of Large Space Building

According to the problems which the fire compartment division standards are single and short of theoretical basis,the fire compartment method based on fire risk assessment is put forward in this paper.Some existing problems of the traditional fire compartment method and the fire performance-based design are listed.And the implementation process of the fire compartment method based on fire risk assessment is expounded.By comparing them,the results show that the fire compartment method based on fire risk assessment have a sufficient basis and a practical application.The simulation software FDS is used to simulate the smoke and calculate the personnel evacuation time in the fire compartment when fired.The rationality of this fire compartment size is analyzed according to the simulation experiment data.The feasibility of this method is validated.If this method will be used in large space buildings to divide fire compartments,its advantages will be reflected.New thinking ideas will be brought to the relevant scientific researchers by this new method.