内容简介
DB41/T 1678-2018空心板桥横向预应力加固技术规程
2018-12-29实施
2018-09-29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 总则 .............................................................................. 2
5 材料 .............................................................................. 2
5.1 混凝土 ........................................................................ 2
5.2 钢材 .......................................................................... 2
5.3 其他 .......................................................................... 2
6 加固设计 .......................................................................... 3
6.1 一般规定 ...................................................................... 3
6.2 横向预应力筋布置 .............................................................. 3
6.3 横向预应力设计 ................................................................ 3
6.4 锚固块设计 .................................................................... 3
7 构造与防腐 ........................................................................ 4
7.1 锚固构造 ...................................................................... 4
7.2 防腐 .......................................................................... 5
8 施工工艺 .......................................................................... 5
8.1 施工准备 ...................................................................... 5
8.2 铰缝处理 ...................................................................... 5
8.3 锚固块安装 .................................................................... 5
8.4 预应力筋安装 .................................................................. 5
8.5 预应力筋张拉 .................................................................. 5
9 验收与养护 ........................................................................5
本标准按照 GB/T 1.1—2009 规则起草。
本标准由河南省交通运输厅提出并归口。