扣件式钢管脚手架的使用--qsf999的安全生产小屋

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扣件式钢管脚手架的使用 | 2012-6-23 19:13:00

扣件式钢管脚手架的使用

    立杆间距一般不大于2.0m,立杆横距不大于1.5m,连墙件不少于三步三跨，脚手架底层满铺一层固定的脚手板，作业层满铺脚手板，自作业层往下计，每隔12m须满铺一层脚手板。具体尺寸应符合《建筑施工扣件式钢管脚手架安全技术规范》(JGJl30)表6．1．1—1和表6．1．1-2的规定或进行专项设计。
    立杆接长除顶层顶步外，其余各层各步接头必须采用对接扣件连接。两根相邻立杆的接头不得设置在同一步距内，同步内隔一根立杆的两个相隔接头在高度方向错开的距离不宜小于500mm：各接头的中心至主节点的距离不宜大于步距的1／3。顶层顶步立杆如采用搭接接长，其搭接长度不应小于1000mm，并采用不少于2个旋转扣件固定，端部扣件盖板边缘至杆端距离不小于10mm。
    主节点处必须设置一根横向水平杆，用直角扣件扣接且严禁拆除。主节点处两个直角扣件的中心距不应大于150mm。在双排脚手架中，靠墙一端的横向水平杆外伸长度不应大于500mm。
    脚手架必须设置纵、横向扫地杆。纵、横向扫地杆应采用直角扣件固定在距底座上皮不大于200mm处的立杆上。当立杆基础不在同一水平面上时，必须将高处的纵向扫地杆向低处延长两跨与立杆固定，高低差不应大于1m。靠边坡上方的立杆轴线到边坡的距离不应小于500mm。
    高度在24m以上的双排扣件式钢管脚手架，必须采用刚性连墙件与建筑物可靠连接。对高度在24m以下的单、双排脚手架，宜采用刚性连墙件与建筑物可靠连接，亦可采用拉筋和顶撑配合使用的附墙连接方式。严禁使用仅有拉筋的柔性连墙件。
    一字形、开口形双排钢管扣件式脚手架的两端均必须设置横向斜撑。高度在24m以上的封闭型脚手架，除拐角应设置横向斜撑外，中间应每隔6跨设置一道。横向斜撑应在同一节间，由底至顶层呈之字形连续布置。

By:qsf999 | 阅读全文 | 回复(16) | 引用通告 | 编辑

Re:在漫画中识别身边的违章 | 2017-3-4 14:44:53

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Re:在漫画中识别身边的违章 | 2017-2-20 0:10:58

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Re:在漫画中识别身边的违章 | 2017-2-19 0:14:27

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Re:在漫画中识别身边的违章 | 2017-2-18 15:53:18

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Re:在漫画中识别身边的违章 | 2016-10-23 4:42:57

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Re:在漫画中识别身边的违章 | 2016-10-20 22:43:40

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Re:在漫画中识别身边的违章 | 2016-10-18 12:08:10

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Re:在漫画中识别身边的违章 | 2016-10-8 19:29:17

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原创 | 2016-9-30 15:46:19

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原创 | 2016-9-28 21:03:28

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原创 | 2016-9-6 21:29:11

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