DBT29-256-2018······1

1 總則······12

2 術語、符號······13

2.1 術語······13

2.2 符號······14

3 基本規定······15

4 材料······18

4.1 一般規定······18

4.2 鋼材······18

4.3 焊接材料······20

4.4 高強度螺栓連接副······21

4.5 涂裝材料······21

4.6 其他材料······22

4.7 質量驗收······22

5 制造······27

5.1 一般規定······27

5.2 零件制造······27

5.3 組裝······32

5.4 焊接······34

5.5 焊接檢驗······39

5.6 部件矯正······41

5.7 試拼裝······42

5.8 表面清理和廠內涂裝······43

5.9 質量驗收······45

6 包裝、存放與運輸······84

6.1 一般規定······84

6.2 包裝······84

6.3 存放······85

6.4 運輸······85

7 安裝······86

7.1 一般規定······86

7.2 安裝前的準備······86

7.3 支撐體系施工······87

7.4 節段安裝······87

7.5 安裝測量······88

7.6 現場焊接、栓接······89

7.7 現場涂裝······92

7.8 支撐體系拆除······94

7.9 質量驗收······94

8 雨期、冬期施工······98

8.1 一般規定······98

8.2 雨期施工······98

8.3 冬期施工······99

9 安全施工與環境保護······101

9.1 一般規定······101

9.2 安全施工······101

9.3 環境保護······102

附錄A 鋼材焊接工藝評定······104

附錄B 圓柱頭焊釘焊接工藝評定······109

附錄C 高強度螺栓連接抗滑移系數試驗方法······112

附錄D 焊接接頭超聲波探傷質量要求······115

附錄E 焊接接頭射線探傷質量要求······117

附錄F 焊接接頭磁粉探傷質量要求······119

本標準用詞說明······120

引用標準名錄······121

條文說明······125

1 總則······129

2 術語、符號······130

2.1 術語······130

2.2 符號······130

3 基本規定······131

4 材料······134

4.1 一般規定······134

4.2 鋼材······134

4.7 質量驗收······134

5 制造······136

5.2 零件制造······136

5.3 組裝······137

5.4 焊接······137

5.6 部件矯正······140

5.7 試拼裝······141

5.8 表面清理和廠內涂裝······141

5.9 質量驗收······141

6 包裝、存放與運輸······144

6.1 一般規定······144

7 安裝······145

7.4 節段安裝······145

7.5 安裝測量······145

7.6 現場焊接、栓接······146

7.9 質量驗收······146

8 雨期、冬期施工······149

8.1 一般規定······149

8.2 雨期施工······149

8.3 冬期施工······149

9 施工安全和環境保護······151

9.1 一般規定······151

9.2 安全施工······151