摘要
选取某典型内廊式女生宿舍楼为研究实例,依据最不利原则设置4个典型火灾场景,利用PyroSim模拟火灾烟气运动过程,对烟气层高度、温度、能见度进行定量分析,得出各场景可用安全疏散时间;利用Pathfinder模拟火灾场景下人员疏散行动过程,得到必需安全疏散时间。结果表明,该宿舍楼各个楼梯承载人流量不均、个别楼梯拥堵瓶颈严重,人员疏散时间较长。调整一部楼梯位置优化人员疏散,着火层人员疏散时间缩短17.0 s,疏散安全性显著提高。
A typical porch type female dormitory building was selected as an example,according to the most unfavorable principle,4 typical fire scenes were set up,PyroSim was used to simulate the process of fire smoke movement,and the height of smoke layer,temperature and visibility were analyzed quantitatively.On this basis,available safety egress time of each scene can be obtained.Using Pathfinder to simulate evacuation process in fire scenario,required safety egress time was obtained.The results showed that the flow rate of the staircase is uneven,the bottleneck of individual staircases is serious,and the evacuation time is longer.Finally,the position of a staircase was adjusted,the evacuation time of the fire layer was shortened by 17.0 s,and the evacuation safety was significantly improved.
作者
袁江滢
程友鹏
叶丽芬
朱杰
YUAN Jiang-ying;CHENG You-peng;YE Li-fen;ZHU Jie(Engineering Institute,Sichuan Normal University,Sichuan Chengdu 610101,China)
出处
《消防科学与技术》
CAS
北大核心
2018年第9期1195-1198,共4页
Fire Science and Technology
作者简介
袁江滢(1996-),女,四川雅安人,四川师范大学工学院在读学士,主要从事消防安全事故预防与应急处理研究,四川省成都市龙泉驿区成龙大道中段1819号,610101;通信作者:朱杰(1979-),女,四川师范大学四川省公共火灾防治技术重点实验室教授,博士,主要从事受限空间火灾动力学特性及理论研究。
