DB/T29-256-2018：天津市市政工程钢桥施工及验收标准

DBT29-256-2018······1

1 总则······12

2 术语、符号······13

2.1 术语······13

2.2 符号······14

3 基本规定······15

4 材料······18

4.1 一般规定······18

4.2 钢材······18

4.3 焊接材料······20

4.4 高强度螺栓连接副······21

4.5 涂装材料······21

4.6 其他材料······22

4.7 质量验收······22

5 制造······27

5.1 一般规定······27

5.2 零件制造······27

5.3 组装······32

5.4 焊接······34

5.5 焊接检验······39

5.6 部件矫正······41

5.7 试拼装······42

5.8 表面清理和厂内涂装······43

5.9 质量验收······45

6 包装、存放与运输······84

6.1 一般规定······84

6.2 包装······84

6.3 存放······85

6.4 运输······85

7 安装······86

7.1 一般规定······86

7.2 安装前的准备······86

7.3 支撑体系施工······87

7.4 节段安装······87

7.5 安装测量······88

7.6 现场焊接、栓接······89

7.7 现场涂装······92

7.8 支撑体系拆除······94

7.9 质量验收······94

8 雨期、冬期施工······98

8.1 一般规定······98

8.2 雨期施工······98

8.3 冬期施工······99

9 安全施工与环境保护······101

9.1 一般规定······101

9.2 安全施工······101

9.3 环境保护······102

附录A 钢材焊接工艺评定······104

附录B 圆柱头焊钉焊接工艺评定······109

附录C 高强度螺栓连接抗滑移系数试验方法······112

附录D 焊接接头超声波探伤质量要求······115

附录E 焊接接头射线探伤质量要求······117

附录F 焊接接头磁粉探伤质量要求······119

本标准用词说明······120

引用标准名录······121

条文说明······125

1 总则······129

2 术语、符号······130

2.1 术语······130

2.2 符号······130

3 基本规定······131

4 材料······134

4.1 一般规定······134

4.2 钢材······134

4.7 质量验收······134

5 制造······136

5.2 零件制造······136

5.3 组装······137

5.4 焊接······137

5.6 部件矫正······140

5.7 试拼装······141

5.8 表面清理和厂内涂装······141

5.9 质量验收······141

6 包装、存放与运输······144

6.1 一般规定······144

7 安装······145

7.4 节段安装······145

7.5 安装测量······145

7.6 现场焊接、栓接······146

7.9 质量验收······146

8 雨期、冬期施工······149

8.1 一般规定······149

8.2 雨期施工······149

8.3 冬期施工······149

9 施工安全和环境保护······151

9.1 一般规定······151

9.2 安全施工······151