后张法预应力桥梁施工工艺浅探后张法预应力桥梁施工工艺浅探 摘要:预应力技术是当今桥梁施工领域进展速度最快、用途最为广泛、最有进展潜力的一门科学技术
本文简单介绍后张法预应力桥梁施工工艺,作为桥梁后张法预应力施工的质量要点起抛砖引玉的作用,请大家多多指正,提出宝贵的意见
关键词:后张法预应力;桥梁;施工 Abstract: prestressed technology is the bridge construction field with the fastest developing speed, use the most as a science and technology widely, the most development potential
Brief introduction of post-tensioned prestressed bridge construction process, as the bridge quality points of tension prestress construction plays a valuable role, please correct me, put forward valuable suggestions
Keywords: post-tensioned bridge; construction 中图分类号:U445 文献标识码:A 文章编号:2095-2104(2025) 一、施工工艺 1、 钢筋骨架的绑扎与安装 (1) 钢筋焊接 热轧光面钢筋和螺纹钢筋如需焊接时采纳闪光对焊,要求接头熔接良好,完全焊透,且不得有钢筋烧伤及裂纹等现象
(2)冷拉调直 光圆盘条钢筋采纳冷拉调直,冷拉伸长率应控制在如下范围:Ⅰ级钢筋不得超过 2%;Ⅱ、Ⅲ级钢筋不得超过 1%
钢筋拉伸调直后不得有死弯