刚性防水面为什么要设置分格缝?通常在哪些部位设置分格缝? -题库考试答案搜索网

刚性防水面为什么要设置分格缝?通常在哪些部位设置分格缝?

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2022-04-02 12:19

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正确答案

分格缝是一种设置在刚性防水层中的变形缝,因为:1.大面积的整体现浇混凝土防水层受气温影响变形较大,容易导致混凝土开裂,设置一定数量的分格缝将单块混凝土防水层的面积减小,从而减少其伸缩变形,可以有效防止和限制裂缝产生。2.在荷载的作用下,屋面板会产生挠曲变形,支撑端翘起,容易引起混凝土防水层开裂,如在这些地方设置分格缝就会避免防水层开裂。
由上述分析可知,分格缝应设置在结构屋面板的支撑端,屋面转角处,刚性防水层与立墙的交接处,并应与板缝对齐。

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标签：黑龙江工程继续教育学院土木工程专升本房屋建筑学期末考试

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