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想求助一下什么是防烟楼梯间，防烟楼梯间设计有哪些要求？有没有人晓得？_其他_设计456问答
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想求助一下什么是防烟楼梯间，防烟楼梯间设计有哪些要求？有没有人晓得？

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想求助一下什么是防烟楼梯间，防烟楼梯间设计有哪些要求？有没有人晓得？

浏览：23次 | 提问时间： 07-28 05:16
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3个答案
在见 07-28 05:17

1.除楼梯间的疏散门之外，楼梯间的内墙上不应开设其它门窗洞口；
2.通向封闭楼梯间的门应采用乙级防火门，并应向疏散方向开启；
3.封闭楼梯间靠外墙每五层内可开启外窗总面积之和不应小于2.00m2；可开启外窗宜设置在外墙上方，并应有方便开启的装置。
4.当不能天然采光和自然通风时，应按防烟楼梯间的要求设置；

敏感极端 07-28 05:25

不可以的，我是这样理解的：“楼梯间及防烟楼梯间前室的内墙”是指前室的内墙，而不是楼梯间的内墙，前室是相对于封闭楼梯间和防烟楼梯间而言的，普通的非封闭楼梯间是谈不上前室的，就像《建规》里说的那样。期望可以帮助到你。

很久 07-28 05:33

应该具有较好的防烟火效果。尽量使烟不进人或少进人楼梯间，阻止火势向疏散楼梯间蔓延，防止在楼梯间开窗、开洞，降低楼梯间隔墙的耐火性能。

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