内容简介
DB34/T 3677-2020公路桥梁维修与加固质量检验评定标准
Inspection and Evaluation Quality Standards for maintenance and reinforcement of Bridges
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 基本规定 .......................................................................... 2
4.1 一般规定 ...................................................................... 3
4.2 质量检验 ...................................................................... 3
4.3 质量评定 ...................................................................... 4
5 一般维修与加固 .................................................................... 4
5.1 混凝土裂缝修补 ................................................................ 4
5.2 混凝土表层缺陷修补 ............................................................ 5
5.3 混凝土涂装维修 ................................................................ 5
5.4 支座维修与更换 ................................................................ 6
5.5 伸缩缝维修与更换 .............................................................. 7
5.6 桥面铺装维修 .................................................................. 8
5.7 其他附属设施维修 .............................................................. 9
5.8 粘贴钢板加固 ................................................................. 10
5.9 粘贴纤维复合材料加固 ......................................................... 11
6 梁桥加固 ......................................................................... 11
6.1 桥面补强加固 ................................................................. 11
6.2 增大截面加固 ................................................................. 12
6.3 体外预应力加固 ............................................................... 13
6.4 改变结构体系加固 ............................................................. 14
7 缆索承重桥加固 ................................................................... 15
7.1 一般规定 ..................................................................... 15
7.2 斜拉索更换 ................................................................... 15
7.3 吊杆、系杆更换 ............................................................... 16
7.4 主缆防护 ..................................................................... 17
7.5 锚碇加固 ..................................................................... 17
8 拱桥加固 ......................................................................... 18
8.1 一般规定 ..................................................................... 18
8.2 圬工拱桥加固 ................................................................. 18
8.3 系杆拱桥加固 ................................................................. 19
8.4 钢筋混凝土拱桥加固 ........................................................... 19
9 钢桥及钢-混组合梁桥加固 ........................................................... 23
9.1 一般规定 ...................................................................... 23
9.2 焊接加固 ...................................................................... 23
9.3 栓接加固 ...................................................................... 24
9.4 裂纹修复与加固 ................................................................ 25
9.5 钢结构涂装 .................................................................... 25
9.6 更换（增加）构件 .............................................................. 26
10 基础及下部结构加固 ...............................................................26
10.1 一般规定 ..................................................................... 26
10.2 盖梁（台帽）加固 ............................................................. 27
10.3 墩（台）身套箍加固 ........................................................... 28
10.4 增设（更换）钢筋混凝土挡块 ................................................... 28
10.5 桥台加固 ..................................................................... 29
10.6 增大基础加固 ................................................................. 31
10.7 承台加固 ..................................................................... 31
10.8 桩基加固 ..................................................................... 32
10.9 地基加固 ..................................................................... 35
附录 A（规范性附录） 单位、分部及分项工程的划分及检查内容表 .......................... 37
附录 B（规范性附录） 结构混凝土外观质量限制缺陷 ...................................... 39
附录 C（规范性附录） 喷射混凝土抗压强度评定 .......................................... 41