文档介绍：建筑设计防火标准关于防排烟的有关规定(同名13072)
several group number, then with b ± a, =c,c is is methyl b two vertical box betweensuch as proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line distance for a,, to b vertical box distance for b, list can measured
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measurement, such as proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line distance for a,, to b vertical box distance for b, list can measured
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measurement, such as proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line distance for a,, to b vertical box distance for b, list can measured
三级
5层
1200
、幼儿园的儿童用房和儿童游乐厅等儿童活动场所、老年人建筑和医院、疗养院的住院局部不应超过二层或设置在三层及三层以上楼层或地下、半地下建筑〔室〕内
商店、学校、电影院、剧院、礼堂、食堂、菜市场不应超过2层或设置在三层及三层以上楼层
四级
2层
600
学校、食堂、菜市场、托儿所、幼儿园、老年人建筑、医院等不应设在二层
地下、半地下建筑〔室〕
500
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注：建筑内设置自动灭火系统时，。。
、半地下建筑〔室〕的耐火等级应为一级；重要公共建筑的耐火等级不应低于二级。
、敞开楼梯等上下层相连通的开口时，其防火分区面积应按上下层相连通的面积叠加计算；当其建筑面积之和大于