摘要
采用数值模拟的方法,研究防烟楼梯间前室不同朝向可开启外窗对自然排烟效果的影响。在保证开窗面积满足规范要求的情况下,对6 m2前室中的自然排烟窗分别进行相邻和相对设置,建立2个火灾场景。结果表明,前室内的可开启外窗,相对设置比相邻设置排烟效果好,相邻设置增大了烟气的危害性。针对《建筑设计防火规范》中的第8.5.1条,提出应优先采用相对设置的自然排烟方式。
By numerical simulation,the influence of different orientations of vents on the natural smoke vent in the anteroom of the smoke proof staircase was studied.Under the condition that the natural smoke vents area meets the requirements of the specification,the natural smoke vents of 6 m2 anteroom were set adjacent and face to face respectively to establish two fire scenes.The results showed that open vents with orientation face to face in the anteroom have better smoke exhaust effect than those with adjacent settings,and vents set adjacent would increase the smoke hazard.According to article 8.5.1 of Code for Fire Protection Design of Building,it is proposed that natural smoke vent face to face should be preferred.
作者
邓玲
韩峥
DENG Ling;HAN Zheng(Sichuan Fire Research Institute of MPS,Sichuan Chengdu 610036,China)
出处
《消防科学与技术》
CAS
北大核心
2018年第10期1314-1316,共3页
Fire Science and Technology
基金
公安部四川消防研究所科研项目"防烟楼梯间前室不同朝向自然通风策略的研究"(20188805Z)
关键词
建筑防火
前室
自然排烟
开窗形式
火灾模拟
building fire protection
anteroom
natural smoke vent
window opening form
fire simulation
