DB/T29-282-2020：天津市建筑施工榫卯式钢管脚手架安全技术规程

DB-T29-282-2020······1

1 总则······11

2 术语和符号······12

2.1 术语······12

2.2 符号······15

3 基本规定······19

3.1 基本要求······19

3.2 安全等级······19

4 构配件······21

4.1 钢管······21

4.2 榫卯节点······21

4.3 脚手板······22

4.4 可调托撑······22

4.5 扣件······23

4.6 构件与底座······23

5 荷载······24

5.1 荷载分类······24

5.2 荷载标准值······25

5.3 荷载组合······29

6 设计计算······31

6.1 基本设计规定······31

6.2 双排脚手架计算······33

6.3 满堂脚手架计算······37

6.4 满堂支撑架计算······39

6.5 脚手架地基承载力计算······47

7 构造要求······49

7.1 一般规定······49

7.2 双排脚手架构造······52

7.3 满堂脚手架构造······56

7.4 满堂支撑架构造······58

8 施工······63

8.1 施工准备······63

8.2 地基与基础······63

8.3 搭设······64

8.4 使用······66

8.5 拆除······67

9 检查与验收······69

9.1 构配件检查与验收······69

9.2 榫卯脚手架检查与验收······73

10 安全管理······75

10.1 一般规定······75

10.2 安全要求······75

附录A 计算用表······79

附录B 钢管截面几何特性······83

附录C 质量检查表······84

本规程用词说明······88

引用标准名录······89

条文说明······90

1 总则······94

2 术语和符号······95

2.1 术语······95

4 构配件······96

4.1 钢管······96

4.2 榫卯节点······96

4.4 可调托撑······96

4.5 扣件······97

5 荷载······98

5.1 荷载分类······98

5.2 荷载标准值······99

5.3 荷载组合······101

6 设计计算······103

6.1 基本设计规定······103

6.2 双排脚手架计算······103

7 构造要求······106

7.1 一般规定······106

7.2 双排脚手架构造······107

7.3 满堂脚手架······111

7.4 满堂支撑架······111

8 施工······111

8.1 施工准备······111

8.2 地基与基础······112

8.3 搭设······112

8.5 拆除······113

10 安全管理······115

10.1 施工准备······115

10.2 榫卯脚手架检查与验收······115