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竹质材料的材质和规格应达到哪些要求？ | 2012-4-9 9:55:00
竹质材料的材质和规格应达到哪些要求？
竹杆一般采用三年以上的楠竹。青嫩、枯黄、黑斑、虫蛀以及裂纹连通二节以上的竹杆都不能用。轻度裂纹的竹杆可用14～16号铁丝加箍后使用。
使用竹杆搭设脚手架时，其立杆、斜杆、顶撑、大横杆的小头一般不小于75mm，小横杆的小头不小于90MM。
（2）竹脚手板的质量
当采用竹笆板时，宜横向密编，纵片不得少于五道，每边应用双片；片应一反一正，且周边应用两根竹片对面夹紧，并打眼穿铁丝扎牢。竹片宽度不得小于30mm，厚度不得小于8MM，不能用腐朽的毛竹制作。
当竹片采用侧立放时，应用直径8mm～ 10mm螺栓，间距500mm～600mm穿过并列竹片拧紧而成，螺栓离端部200mm～250MM，板的高度（厚度）一般不小于50mm。
当用整竹拼制时，采用大头直径30mm，小头直径20mm～25mm，一顺一倒相互排列，用 14号铁丝，间距150mm进行编扎，脚手板两端及中间应对称设置四边双面竹板条，用铁丝绑扎牢固。
- 上一篇：坑（槽）壁支护工程施工安全要点是什么？
- 下一篇：脚手架要满足哪些基本要求？
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