ZJ/ZN 2019-14
公路钢结构桥梁制造指南
2019年12月发布
2020年1月实施
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
