内容简介
DB34/T 3676-2020双主梁钢板组合梁桥设计与施工指南
Guide for Design and Construction of Steel-concrete Composite Bridge with Twin Girder
2020-09-03实施
2020-08-03发布
目 次
前言 ...............................................................................1
1 范围 .............................................................................. 1
2 规范性引用文件 .................................................................... 1
3 术语和定义 ........................................................................ 1
4 材料 .............................................................................. 3
4.1 一般规定 ...................................................................... 3
4.2 钢材 .......................................................................... 3
4.3 混凝土 ........................................................................ 3
4.4 钢筋及预应力筋 ................................................................ 4
5 结构设计 .......................................................................... 4
5.1 一般规定 ...................................................................... 4
5.2 总体布置 ...................................................................... 4
5.3 钢主梁 ........................................................................ 5
5.4 钢横梁 ........................................................................ 6
5.5 桥面板 ........................................................................ 6
5.6 桥墩 .......................................................................... 7
6 结构计算 .......................................................................... 7
6.1 一般规定 ...................................................................... 7
6.2 作用与作用组合 ................................................................ 7
6.3 计算模型 ...................................................................... 8
6.4 承载能力极限状态计算 .......................................................... 9
6.5 正常使用极限状态计算 ......................................................... 16
6.6 短暂工况应力计算 ............................................................. 17
7 构造要求 ......................................................................... 18
7.1 钢主梁 ....................................................................... 18
7.2 钢横梁 ....................................................................... 19
7.3 桥面板 ....................................................................... 20
7.4 连接件 ....................................................................... 21
7.5 桥面板湿接缝 ................................................................. 21
8 耐久性与可维护性设计 ............................................................. 22
8.1 钢梁耐久性设计 ............................................................... 22
8.2 桥面板耐久性设计 ............................................................. 23
8.3 钢混结合面耐久性设计 ......................................................... 23
8.4 桥面耐久性设计 ............................................................... 23
8.5 连接件耐久性设计 .............................................................. 23
8.6 钢梁的可维护性 ................................................................ 23
8.7 桥面板的可维护性 .............................................................. 24
9 加工与制造 ........................................................................ 24
9.1 钢梁制造 ...................................................................... 24
9.2 桥面板预制 .................................................................... 25
10 现场施工 ......................................................................... 26
10.1 一般规定 ..................................................................... 26
10.2 钢梁运输 ..................................................................... 26
10.3 钢梁安装 ..................................................................... 27
10.4 桥面板运输 ................................................................... 27
10.5 桥面板现场施工 ............................................................... 27
附录 A（资料性附录） 双主梁钢板组合梁设计流程........................................ 29
附录 B（资料性附录） 桥面板预制施工流程 ............................................. 30
附录 C（资料性附录） 架桥机架设钢梁安装工艺流程 ...................................... 31