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请问消防楼梯设计要考虑哪些问题？

请问消防楼梯设计要考虑哪些问题？

浏览：36次 | 提问时间： 08-05 11:02

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共赴 08-05 11:03

消防电梯除了正常供电电源外，应当设置柴油发电机供电系统，以保证火灾时确保有电源供给；疏散楼梯间应当是一个封闭型的*井式楼梯间，与外部走道间设有防火门，楼梯间内设有应急照明及应急指示灯。

偏差 08-05 11:11

你好，1 栏杆扶手的高度不应小于1.1m，楼梯的净宽度不应小于0.9m；2 倾斜角度不应大于45°；3 楼梯段和平台均应采取不燃材料制作。平台的耐火极限不应低于1.00h，楼梯段的耐火极限不应低于0.25h；4 通向室外楼梯的门宜采用乙级防火门，并应向室外开启；5 除疏散门外，楼梯周围2.0m内的墙面上不应设置门窗洞口。疏散门不应正对楼梯段。7.4.6 用作丁、戊类厂房内第二安全出口的楼梯可采用金属梯，但其净宽度不应小于0.9m，倾斜角度不应大于45°。丁、戊类高层厂房，当每层工作平台人数不超过2人且各层工作平台上同时生产人数总和不超过10人时，可采用敞开楼梯，或采用净宽度不小于0.9m、倾斜角度小于等于60°的金属梯兼作疏散梯。

Manjusaka凄美 08-05 11:20

楼梯用材要考虑使用者状况。一般情况下，有老人和小孩的家庭，最好避免采用钢质和铁艺、楼梯台阶也不要做得太高，楼梯扶手最好做成圆弧形，不要有太尖锐的棱角。楼梯踏板可选用木地板和铺地毯。小面积居室中楼梯的改造。在居住面积较小的房间中，楼梯显得压抑和沉重，业内一些设计师很提倡使用结构表现法来构思，其特点主要表现为把楼梯踏步做成具有一定通透性，来减少空间压迫感，从而达到空间结构的完美结合。

爱尽 08-05 11:28

你好，建筑物内如设有上下层相连通的走廊、自动扶梯等开口部位时，应按上、下连通层作为一个防火分区，其建筑面积之和不宜超过本规范第5.1.1条的规定。多层建筑的中庭，当房间、走道与中庭相通的开口部位，设有可自动关闭的乙级防火门或防火卷帘；与中庭相通的过厅、通道等处，设有乙级防火门或防火卷帘；中庭每层回廊设有火灾自动报*系统和自动*灭火系统；{TodayHot}以及封闭屋盖设有自动排烟设施时，可不受本规定限制。希望我的回答对你有所帮助。

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