2020(技术规范标准)桥梁施工加固技术规范

目次

1 总则 (1)

2 术语 (2)

3 施工准备与施工组织 (4)

3.1 施工准备........................................................................................................................................ 4 ....

3.2 施工组织设计............................................................................................................................... 4 ....

3.3 施工安全及环境保护 ................................................................................................................. 5 ....

4 混凝土桥梁表层缺陷处理 (7)

4.1 混凝土修补 ................................................................................................................................... 7 ....

4.2 水泥砂浆修补............................................................................................................................... 7 ....

4.3 聚合物水泥砂浆修补 ................................................................................................................. 8 ....

4.4 改性环氧砂浆（混凝土）修补 ............................................................................................... 8 ....

4.5 混凝土表面防腐涂装 ................................................................................................................. 9 ....

4.6 钢筋锈蚀处理............................................................................................................................... 9 ....

4.7 质量检验与验收 ....................................................................................................................... 1...0 ..

5 结构裂缝的处理 (12)

5.1 材料选用..................................................................................................................................... 1...2 ..

5.3 质量检验与验收 1 (3)

5.2 施工要求..................................................................................................................................... 1...2 ..

6 梁桥上部结构加固 (15)

6.1 桥面板补强加固....................................................................................................................... 1...5 .

6.2 增大截面加固............................................................................................................................ 1..6 ..

6.3 粘贴钢板加固............................................................................................................................ 1..7 ..

6.4 粘贴纤维复合材料加固.......................................................................................................... 1...8 .

6.5 体外预应力加固....................................................................................................................... 2...0 .

6.6 改变结构体系加固................................................................................................................... 2...2 .

6.7 质量检验与验收....................................................................................................................... 2...4 .

7 拱桥加固施工 (26)

7.1 拱上建筑拆除............................................................................................................................ 2..6 ..

7.2 圬工拱桥加固............................................................................................................................ 2..6 ..

7.3 钢筋混凝土拱桥加固.............................................................................................................. 2..8 ..

7.4 钢管混凝土拱桥加固.............................................................................................................. 2..9 ..

7.5 中、下承式拱桥加固.............................................................................................................. 2..9 ..

7.6 质量检验与验收....................................................................................................................... 2...9 .

8 缆索承重桥梁的加固 (30)

8.1 一般要求..................................................................................................................................... 3...0 .

8.2 斜拉索更换................................................................................................................................ 3..0 ..

8.5 悬索桥主缆维修 3 (4)