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文章重点阐述了京沪高铁柳泉镇后八丁特大桥钢管拱横撑管单面焊双面成型焊接工艺,根据结构特点和设计要求,从单面焊双面成型焊接的主要施工特点和难点、焊接方法、工艺的对比以及单面焊双面成型焊接存在的问题、采取的工艺措施以及单面焊双面成型的焊接工艺进行了详细的分析、研究,改善了外观成型,提高了生产效率,对确保钢管拱桥横撑管的焊接质量和外形尺寸精度,提高工效,缩短工期,降低制造成本有着重要的意义。
The paper mainly elaborates the welding process of single-sided double-sided welding of steel arch cross-tube in the post-Baoding Bridge of Beijing-Shanghai High-speed Railway. According to the structural characteristics and design requirements, from the main construction features and difficulties of single- Welding method, process comparison and single-sided welding double-sided forming welding problems, the adoption of the technical measures and single-sided welding double-sided molding welding process were analyzed in detail to improve the appearance of appearance and improve production efficiency, To ensure the quality of steel pipe arch bridge cross-tube welding and dimensional accuracy, improve work efficiency, shorten the construction period, reduce manufacturing costs is of great significance.