针对大型商业综合体安全疏散设计难点,运用对比分析和数值模拟方法,对大型商业综合体安全疏散走道的加压送风方式、送风量及安全性进行分析.结果表明,安全疏散走道可参考防烟楼梯间的防烟方式,采用对安全疏散走道送风而前室不送风的方式；加压送风量可综合考虑压差法、风速法和面积法计算确定；通过数值分析结果,当安全疏散走道内加压送风量为2.5×104 m3/h时,能够有效阻止烟气进入,可满足人员安全疏散要求；建议送风口沿疏散走道均匀布置.%To solve the problems of large commercial complexes safety evacuation design, air supply mode, air distribution, and safety of evacuation corridors were comparatively analyzed and numerically simulated. The results showed that the design of safety evacuation corridor can refer to the design of smoke -proof staircase, and supply air to evacuation corridors but not front room; the calculation of air distribution can comprehensively consider differential pressure method, wind method and area method; numerical simulation showed that the air distribution of 2. 5 × 104 m3/h can prevent the flue gas enters effectively, and can meet the requirement of safe evacuation; outlets should be distributed evenly along the corridor.
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