发布时间:2025-01-18 13:58:05
【答案】:C
C项,根据《无障碍设计规范》(GB 50763—2012)第3.6.1条规定,无障碍楼梯应符合下列规定:①宜采用直线形楼梯;②公共建筑楼梯的踏步宽度不应小于280mm,踏步高度不应大于160mm;③不应采用无踢面和直角形突缘的踏步;④宜在两侧均做扶手;⑤如采用栏杆式楼梯,在栏杆下方宜设置安全阻挡措施;⑥踏面应平整防滑或在踏面前缘设防滑条;⑦距踏步起点和终点250mm~300mm宜设提示盲道;⑧踏面和踢面的颜色宜有区分和对比;⑨楼梯上行及下行的第一阶宜在颜色或材质上与平台有明显区别。
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