下列有关玻璃幕墙防火和隔烟要求的说法不正确的是:( ) -题库考试答案搜索网

下列有关玻璃幕墙防火和隔烟要求的说法不正确的是:( )

单选题

2021-07-17 23:43

A、玻璃幕墙的防火封堵构造系统,在正常使用条件下,应具有伸缩变形能力、密封性和耐久性;
B、用防火岩棉做层间防烟封堵,可以只在楼面梁上只做一道;
C、玻璃幕墙防火封堵构造系统的填充材料及其保护性面层材料,应采用耐火极限符合设计要求的不燃烧材料或难燃烧材料。
D、楼层间水平防烟带的岩棉或矿棉宜采用厚度不小于1.5mm的镀锌钢板承托

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正确答案

B

试题解析

标签：工程造价专升本建筑结构 19级补考 2019级毕业清考（考试分）

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