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建筑施工扣件式钢管 脚手架安全技术规范
JGJ 130-2011
中华人民共和国建设部公告902号
2011-01-28批准 2011-12-01实施
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目录
1 总则 ....................................................................................................................................................... 3 2 术语、符号 ........................................................................................................................................... 3 2.1 术语 ..................................................................................................................................................... 3 2.2 符号 ..................................................................................................................................................... 4 3 构配件 ................................................................................................................................................... 5 3.1 钢管 ..................................................................................................................................................... 5 3.2 扣件 ..................................................................................................................................................... 6 3.3 脚手板 ................................................................................................................................................. 6 3.4 可调托撑 ............................................................................................................................................. 6 3.5 悬挑脚手架用型钢 ............................................................................................................................. 6 4 荷 载 ................................................................................................................................................... 6 4.1 荷载分类 ............................................................................................................................................. 6 4.2 荷载标准值 ......................................................................................................................................... 7 4.3 荷载效应组合 ..................................................................................................................................... 8 5 设计计算 ............................................................................................................................................... 9 5.1 基本设计规定 ..................................................................................................................................... 9 5.2 单、双排脚手架计算 ....................................................................................................................... 10 5.3 满堂脚手架计算 ............................................................................................................................... 13 5.4 满堂支撑架计算 ............................................................................................................................... 14 5.5 脚手架地基承载力计算 ................................................................................................................... 14 5.6 型钢悬挑脚手架计算 ....................................................................................................................... 15 6 构造要求 ............................................................................................................................................. 16 6.1 常用单、双排脚手架设计尺寸 ....................................................................................................... 16 6.2 纵向水平杆、横向水平杆、脚手板 ............................................................................................... 17 6.3 立杆 ................................................................................................................................................... 19 6.4 连墙件 ............................................................................................................................................... 20 6.5 门洞 ................................................................................................................................................... 20 6.6 剪刀撑与横向斜撑 ........................................................................................................................... 22 6.7 斜 道 ........................................................................................................................................... 23 6.8 满堂脚手架 ....................................................................................................................................... 24 6.9 满堂支撑架 ....................................................................................................................................... 25 7 施工 ..................................................................................................................................................... 29 7.1 施工准备 ........................................................................................................................................... 29 7.2 地基与基础 ....................................................................................................................................... 29 7.3 搭设 ................................................................................................................................................... 29 7.4 拆除 ................................................................................................................................................... 31 8 检查与验收 ............................................................................................................................................... 31 8.1 构配件检查与验收 ............................................................................................................................. 32 8.2 脚手架检查与验收 ............................................................................................................................. 33 9 安全管理 ............................................................................................................................................. 37
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1 总则
1.0.1 为在扣件式钢管脚手架设计与施工中贯彻执行国家安全生产的方针政策,确保施工人员安全,做到技术先进、经济合理、安全适用,制定本规范。
1.0.2 本规范适用于房屋建筑工程和市政工程等施工用落地式单、双排扣件式钢管脚手架、满堂扣件式钢管脚手架、型钢悬挑扣件式钢管脚手架、满堂扣件式钢管支撑架的设计、施工及验收。
1.0.3 扣件式钢管脚手架施工前,应按本规范的规定对其结构构件与立杆地基承载力进行设计计算,并应编制专项施工方案。
1.0.4 扣件式钢管脚手架的设计、施工与验收,除应符合本规范的规定外,尚应符合国家现行有关强制性标准的规定。
2 术语、符号
2.1 术语
2.1.1 扣件式脚手架 steel tubular scaffold with couplers
为建筑施工而搭设的、承受荷载的由扣件和钢管等构成的脚手架与支撑架,包含本规范各类脚手架与支撑架,统称脚手架。
2.1.2 支撑架 formwork support
为钢结构安装或浇筑混凝土构件等搭设的承力支架。 2.1.3 单排扣件式钢管脚手架single pole steel tubular scaffold with couplers 只有一排立杆,横向水平杆的一端搁置固定在墙体上的脚手架,简称单排架。 2.1.4 双排脚手架 double pole steel tubular scaffold with couplers 由内外两排立杆和水平杆等构成的脚手架,简称双排架。
2.1.5 满堂扣件式钢管脚手架fastener steel tube full hall scaffold 在纵、横方向,由不少于三排立杆并与水平杆、水平剪刀撑、竖向剪刀撑、扣件等构成的脚手架。该架体顶部施工荷载通过水平杆传递给立杆,立杆呈偏心受压状态,简称满堂脚手架。
2.1.6 满堂扣件式钢管支撑架fastener steel tuber full hall formwork support 在纵、横方向,由不少于三排立杆并与水平杆、水平剪刀撑、竖向剪刀撑、扣件等构成的脚手架。该架体顶部钢结构安装等(同类工程)施工荷载通过可调托轴心传力给立杆,顶部立杆呈轴心受压状态,简称满堂支撑架。
2.1.7 开口型脚手架 open scaffold
沿建筑周边非交圈设置的脚手架为开口型脚手架;其中直线型的脚手架为一字形脚手架。
2.1.8 封圈型脚手架 loop scaffold 沿建筑周边交圈设置的脚手架。 2.1.9 扣件 coupler
采用螺栓紧固的扣接连接件扣件;包括直角扣件、旋转扣件、对接扣件。 2.1.10 防滑扣件 skid resistant coupler 根据抗滑要求增设的非连接用途扣件。 2.1.11 底座 base plante
设于立杆底部的垫座:包括固定底座、可调底座。 2.1.12 可调托撑 adjustable forkhead
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