多功能建筑火灾人员安全疏散模拟

Simulation of Safety Evacuation in Multi-building Fire

针对一多功能综合办公楼建筑模型,设定最不利的火灾场景.依据火灾烟气危险状态判据临界值,采用场-网复合模型模拟预测建筑火灾烟流运动特性,获得人员逃生可用安全疏散时间(ASET).采用重庆大学自主开发的应用软件《高层建筑人员疏散行动时间预测系统》确定人员所需安全疏散时间(RSET).比较人员所需安全疏散时间和人员可用安全疏散时间,对火灾建筑中人员能否安全疏散做出评价,并提出保证人员安全疏散的措施.

Based on a multi-functional office building model,the most unfavorable fire scenario was simulated.According to fire smoke emergency critical value,a hybrid field-network model was established to simulate the fire smoke flow properties in building and the available safe egress time（ASET）was obtained.The required safe egress time（RSET）was calculated by the evacuation simulate system developed independently by Chongqing University.The occupant safety evacuation in building fire is evaluated through a comparative study of the RSET and the ASET,and measures are proposed about the safety evacuation.