性能化消防设计中人员安全疏散的确证

Corroboration of safe egress in the performance-based fire protection design

保证人员的安全疏散是建筑物性能化消防设计的首要目标。判断性能化消防设计中人员能否安全疏散的条件是 :可用疏散时间大于所需疏散时间。通过分析火灾时影响人员安全疏散的各主要因素 ,得出了确定人员逃生时可用疏散时间的条件。分析了人员逃生时所需疏散时间的组成 ,介绍了一种预测人员疏散行动时间的简单计算方法 ,并指出计算疏散时间应注意的事项。

The prime objective of performance based design is to ensure the safe egrss of occupants.The condition to judge if the occupants evacuate safely is:ASET(available safe egress time)>RSET(required safe egress time).Based on the analysis of the main factors that affect the safe egress of the occupants,defines the conditions of determining the available safe egress time.The different time duration of ASET is analyzed and a simple method to predict the egress time of the occupants is introduced.Finally,points out the points needing attention when calculating the egress time.