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旋转楼梯可以做疏散楼梯使用吗 - 工程设计 - 项目管理 - 氿上知道
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满意答案
多规 7.4.7 疏散用楼梯和疏散通道上的阶梯不宜采用螺旋楼梯和扇形踏步。当必须采用时，踏步上下两级所形成的平面角度不应大于10°，且每级离扶手250mm 处的踏步深度不应小于220mm。
Walk
回答于：2013-08-23
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