某商场首层楼梯间未直通室外的性能化解决方案

Performance-based solution of un-connecting between stairwell and outside on first floor of a emporium

某商场首层7个疏散楼梯间未直通室外,采取将人员通过走道疏散至室外安全区的方法进行疏散。通过设计火灾场景、疏散场景,使用FDS模拟烟气运动,采用Building Exodus软件模拟并计算商场内人员的疏散行动时间,评估其人员疏散的安全性。认为机械排烟系统和水喷淋系统同时有效时人员可安全疏散。提出疏散走道应设置独立的机械排烟系统及固定的挡烟垂壁的建议。

People needs to evacuate from evacuation passage since the 7 stairwells on first floor is not open to the outside in an emporium.Through the setting of fire scenario and evacuation scenario,smoke movement was simulated by FDS and evacuation time of people in emporium was simulated by Building Exodus.Evacuation safety was evaluated.People can evacuate safely if the mechanical smoke exhausting system and water sprinkler system are effective.Suggestion of installing mechanical smoke exhausting system and smoke screen was put forward.