摘要
以某商场为例对室内步行街防火分区划分进行性能化设计。根据建筑平面布局和使用功能特点,提出控制精品店铺的面积不大于300 m2,临街商铺采用耐火极限不低于1.0h的墙体或防火玻璃与步行街走道分隔,二、三层环廊的宽度不小于3.0 m,步行街宽度不宜小于8.0 m等防火分隔措施。以公式计算确定商铺火灾最大热释放速率为10.4 MW。以FDS模拟水平及竖直方向不同距离的热辐射强度,验证防火分隔方式的有效性。
Performance-based design of fire compartment partition of indoor walking street in a shopping mall was introduced.Depending on plane layout and function of construction,measures for fire separation were put forward like making the area of shop not more than 300 m2,separating the shop and walking street with wall or fire-resistant glass which fire resistance is not short than 1 h,making width of the annular corridors at 2nd or 3rd floor not less than 3 m,and making the width of walking street not less than 8 m.The biggest heat release rate calculated by equation is 10.4 MW.The heat radiation with different distances in horizontal and vertical directions was simulated by FDS to verify the effect of the fire separation.
出处
《消防科学与技术》
CAS
北大核心
2011年第5期383-385,共3页
Fire Science and Technology
关键词
防火分区
室内步行街
性能化设计
防火分隔
耐火极限
fire compartment
indoor walking street
performance-based design
fire separation
fire resistance
