目 次

前 言.............................................................................................................................................................1

1 总则................................................................................................................................................................... 1

2 编制依据...........................................................................................................................................................1

3 术语和定义.......................................................................................................................................................1

4 施工准备...........................................................................................................................................................3

4.1 一般规定...................................................................................................................................................3

4.2 主要准备工作...........................................................................................................................................4

5 材料................................................................................................................................................................... 5

5.1 一般规定...................................................................................................................................................5

5.2 钢材...........................................................................................................................................................5

5.3 焊接材料...................................................................................................................................................7

5.4 圆柱头焊钉...............................................................................................................................................8

5.5 螺栓连接副...............................................................................................................................................8

5.6 涂装材料...................................................................................................................................................9

6 零件制造...........................................................................................................................................................9

6.1 一般规定...................................................................................................................................................9

6.2 放样与号料...............................................................................................................................................9

6.3 切割.........................................................................................................................................................10

6.4 零件弯曲.................................................................................................................................................11

6.5 零件矫正.................................................................................................................................................11

6.6 零件机加工.............................................................................................................................................11

6.7 检验.........................................................................................................................................................12

7 组装................................................................................................................................................................. 16

7.1 一般规定.................................................................................................................................................16

7.2 钢板接料.................................................................................................................................................17

7.3 加劲板单元.............................................................................................................................................18

7.4 钢锚箱和钢锚梁构件.............................................................................................................................20

7.5 吊耳.........................................................................................................................................................22

7.6 支承结构.................................................................................................................................................22

7.7 工形钢梁和槽形钢梁.............................................................................................................................23

7.8 钢箱梁.....................................................................................................................................................24

7.9 钢桁梁.....................................................................................................................................................26

7.10 钢箱拱...................................................................................................................................................30

7.11 钢桁拱...................................................................................................................................................30

7.12 钢塔.......................................................................................................................................................30

8 焊接与矫正.....................................................................................................................................................31

8.1 一般规定.................................................................................................................................................31

8.2 焊接工艺评定.........................................................................................................................................32

III8.3 焊接环境.................................................................................................................................................33

8.4 定位焊.....................................................................................................................................................33

8.5 自动埋弧焊.............................................................................................................................................33

8.6 气体保护焊.............................................................................................................................................34

8.7 手工焊条焊.............................................................................................................................................34

8.8 圆柱头焊钉焊接.....................................................................................................................................34

8.9 正交异性钢桥面板 U 肋与顶板的焊接................................................................................................ 35

8.10 焊缝修磨和返修...................................................................................................................................37

8.11 矫正.......................................................................................................................................................38

9 焊缝质量检验.................................................................................................................................................43

9.1 一般规定.................................................................................................................................................43

9.2 焊缝的外观检验.....................................................................................................................................45

9.3 焊缝的无损检验.....................................................................................................................................46

9.4 圆柱头焊钉焊焊缝检验.........................................................................................................................51

9.5 产品试板.................................................................................................................................................51

10 高强度螺栓...................................................................................................................................................52

10.1 一般规定...............................................................................................................................................52

10.2 制孔.......................................................................................................................................................53

10.3 高强度螺栓连接副...............................................................................................................................54

10.4 高强度螺栓连接处的钢板表面处理和摩擦面抗滑移系数检验...................................................... 55

11 预拼装与试拼装...........................................................................................................................................55

11.1 一般规定...............................................................................................................................................55

11.2 工形钢梁和槽形钢梁...........................................................................................................................56

11.3 钢箱梁...................................................................................................................................................56

11.4 钢桁梁...................................................................................................................................................58

11.5 钢箱拱...................................................................................................................................................61

11.6 钢桁拱...................................................................................................................................................61

11.7 钢塔.......................................................................................................................................................61

11.8 钢锚梁及牛腿试装...............................................................................................................................63

12 涂装............................................................................................................................................................... 63

12.1 一般规定...............................................................................................................................................63

12.2 表面处理...............................................................................................................................................64

12.3 工厂涂装...............................................................................................................................................66

13 检验与验收...................................................................................................................................................67

13.1 一般规定...............................................................................................................................................67

13.2 板单元...................................................................................................................................................68

13.3 工形板梁和槽钢形梁...........................................................................................................................69

13.4 钢箱梁...................................................................................................................................................69

13.5 钢桁梁...................................................................................................................................................72

13.6 钢箱拱...................................................................................................................................................75

13.7 钢桁拱...................................................................................................................................................75

13.8 钢塔.......................................................................................................................................................75

13.9 钢锚梁及牛腿.......................................................................................................................................75

13.10 涂装.....................................................................................................................................................76

附录A （资料性附录） 编制依据文件清单.......................................................................................... 79

附录B （规范性附录） 钢材焊接工艺评定.......................................................................................... 85

附录C （规范性附录） 圆柱头焊钉焊接工艺评定.............................................................................. 90

附录D （规范性附录） 钢材及加工缺陷的修补.................................................................................. 91
附录E （规范性附录） 涂装材料复验要求.......................................................................................... 92
附录F （规范性附录） 高强度螺栓连接抗滑移系数试验方法.......................................................... 98
附录G （规范性附录） 超声波探伤.................................................................................................... 100
附录H （规范性附录） 磁粉探伤.........................................................................................................105

附录I （规范性附录） 射线探伤.........................................................................................................108

附录J （规范性附录） 渗透探伤.........................................................................................................114

附录K （规范性附录） 钢材力学性能及工艺性能............................................................................ 117