DB34/T 3585-2020 桥梁预应力张拉和孔道压浆施工指南
简介
DB34/T 3585-2020
桥梁预应力张拉和孔道压浆施工指南
Bridge Prestressing Tension and Hole Grouting Construction Guide
2020-07-22实施
2020-06-22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 预应力施工材料 .................................................................... 2 4.1 预应力筋 ...................................................................... 2 4.2 螺旋筋 ........................................................................ 3 4.3 锚具、夹具和连接器 ............................................................ 3 4.4 波纹管 ........................................................................ 4 4.5 压浆材料 ...................................................................... 5 5 预应力施工机具 .................................................................... 6 5.1 制束机具 ...................................................................... 6 5.2 油泵 .......................................................................... 7 5.3 千斤顶 ........................................................................ 7 5.4 压浆机具 ...................................................................... 8 5.5 智能张拉控制系统 .............................................................. 8 5.6 智能压浆控制系统 .............................................................. 9 5.7 设备标定 ...................................................................... 9 6 管道安装与穿束 ................................................................... 10 6.1 波纹管安装 ................................................................... 10 6.2 胶管抽芯成孔 ................................................................. 11 6.3 钢管抽芯成孔 ................................................................. 11 6.4 短束 ......................................................................... 12 6.5 长束 ......................................................................... 12 6.6 穿束施工要求 ................................................................. 13 7 张拉施工 ......................................................................... 13 7.1 一般要求 ..................................................................... 13 7.2 张拉伸长值控制 ............................................................... 14 7.3 智能张拉控制 ................................................................. 16 7.4 精轧螺纹钢张拉 ............................................................... 17 8 压浆施工 ......................................................................... 17 8.1 一般要求 ..................................................................... 17 8.2 普通压浆工艺 ................................................................. 18 8.3 真空辅助压浆工艺 ............................................................. 19 8.4 智能压浆工艺 .................................................................. 21 9 质量检验与评定标准 ................................................................ 22 9.1 张拉施工一般要求 .............................................................. 22 9.2 张拉施工质量检测 .............................................................. 22 9.3 压浆施工压浆一般要求 .......................................................... 24 9.4 压浆施工压浆质量检查 .......................................................... 24 10 安全环保措施 ..................................................................... 24 10.1 安全措施 ..................................................................... 25 10.2 环保措施 ..................................................................... 25 附录 A（资料性附录） 锚下有效预应力检测试验方法 ...................................... 26 附录 B（资料性附录） 锚下有效预应力不均匀度计算方法 .................................. 27 附录 C（资料性附录） 锚下有效预应力检测验收记录 ...................................... 28 附录 D（资料性附录） 预应力孔道压浆密实度无损检测 .................................... 29 附录 E（资料性附录） 张拉施工常见问题及处理措施 ...................................... 32 附录 F（资料性附录） 压浆常见问题及处理措施 .......................................... 34
DB34/T 3585-2020
桥梁预应力张拉和孔道压浆施工指南
Bridge Prestressing Tension and Hole Grouting Construction Guide
2020-07-22实施
2020-06-22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 预应力施工材料 .................................................................... 2 4.1 预应力筋 ...................................................................... 2 4.2 螺旋筋 ........................................................................ 3 4.3 锚具、夹具和连接器 ............................................................ 3 4.4 波纹管 ........................................................................ 4 4.5 压浆材料 ...................................................................... 5 5 预应力施工机具 .................................................................... 6 5.1 制束机具 ...................................................................... 6 5.2 油泵 .......................................................................... 7 5.3 千斤顶 ........................................................................ 7 5.4 压浆机具 ...................................................................... 8 5.5 智能张拉控制系统 .............................................................. 8 5.6 智能压浆控制系统 .............................................................. 9 5.7 设备标定 ...................................................................... 9 6 管道安装与穿束 ................................................................... 10 6.1 波纹管安装 ................................................................... 10 6.2 胶管抽芯成孔 ................................................................. 11 6.3 钢管抽芯成孔 ................................................................. 11 6.4 短束 ......................................................................... 12 6.5 长束 ......................................................................... 12 6.6 穿束施工要求 ................................................................. 13 7 张拉施工 ......................................................................... 13 7.1 一般要求 ..................................................................... 13 7.2 张拉伸长值控制 ............................................................... 14 7.3 智能张拉控制 ................................................................. 16 7.4 精轧螺纹钢张拉 ............................................................... 17 8 压浆施工 ......................................................................... 17 8.1 一般要求 ..................................................................... 17 8.2 普通压浆工艺 ................................................................. 18 8.3 真空辅助压浆工艺 ............................................................. 19 8.4 智能压浆工艺 .................................................................. 21 9 质量检验与评定标准 ................................................................ 22 9.1 张拉施工一般要求 .............................................................. 22 9.2 张拉施工质量检测 .............................................................. 22 9.3 压浆施工压浆一般要求 .......................................................... 24 9.4 压浆施工压浆质量检查 .......................................................... 24 10 安全环保措施 ..................................................................... 24 10.1 安全措施 ..................................................................... 25 10.2 环保措施 ..................................................................... 25 附录 A（资料性附录） 锚下有效预应力检测试验方法 ...................................... 26 附录 B（资料性附录） 锚下有效预应力不均匀度计算方法 .................................. 27 附录 C（资料性附录） 锚下有效预应力检测验收记录 ...................................... 28 附录 D（资料性附录） 预应力孔道压浆密实度无损检测 .................................... 29 附录 E（资料性附录） 张拉施工常见问题及处理措施 ...................................... 32 附录 F（资料性附录） 压浆常见问题及处理措施 .......................................... 34
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