A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Drilling and scribing method for curved steel truss girder
The invention provides a drilling and lineation method for a curved steel truss girder, and relates to the technical field of bridge construction, the drilling and lineation method for the curved steel truss girder comprises the following steps: in a steel plate part blanking stage, drawing a plate unit assembly system line on an inner side web plate unit of a chord member by adopting a laser lineation process, and drawing a bending system line on a bending inner arc side; performing assembly welding and bending according to the system lines to form a complete chord member structure, and finding out intersection points of the plate unit assembly system lines and the bending system lines on the chord member structure; the distance between each hole group of the inner side web plate unit and the datum point is determined, a drilling template is arranged on the basis of the distance, and drilling of the inner side web plate of the chord member structure is completed through the drilling template; and the positions of the hole groups in the outer side web unit are positioned through a reverse hole tool, and drilling of the outer side web of the chord member structure is completed. Compared with the prior art, the drilling and scribing method for the curved steel truss girder can avoid drilling position deviation caused by arc bending.
本发明提供了一种曲线钢桁梁的钻孔划线方法，涉及桥梁施工技术领域，曲线钢桁梁的钻孔划线方法包括在钢板零件下料阶段，采用激光划线工艺，在弦杆的内侧腹板单元上绘制板单元组装系统线，并在折弯内弧侧绘制折弯系统线；根据系统线进行组焊及折弯，形成完整的弦杆结构，同时在弦杆结构上找出板单元组装系统线和折弯系统线的交点；确认内侧腹板单元各孔群到基准点的距离并以此为基准布设钻孔模板，并通过钻孔模板完成弦杆结构的内侧腹板的钻孔；通过反孔工装定位外侧腹板单元上的孔群位置，完成弦杆结构的外侧腹板的钻孔。本发明的曲线钢桁梁的钻孔划线方法，相比于现有技术，可以避免因折弯圆弧导致的钻孔位置偏差。
Drilling and scribing method for curved steel truss girder
The invention provides a drilling and lineation method for a curved steel truss girder, and relates to the technical field of bridge construction, the drilling and lineation method for the curved steel truss girder comprises the following steps: in a steel plate part blanking stage, drawing a plate unit assembly system line on an inner side web plate unit of a chord member by adopting a laser lineation process, and drawing a bending system line on a bending inner arc side; performing assembly welding and bending according to the system lines to form a complete chord member structure, and finding out intersection points of the plate unit assembly system lines and the bending system lines on the chord member structure; the distance between each hole group of the inner side web plate unit and the datum point is determined, a drilling template is arranged on the basis of the distance, and drilling of the inner side web plate of the chord member structure is completed through the drilling template; and the positions of the hole groups in the outer side web unit are positioned through a reverse hole tool, and drilling of the outer side web of the chord member structure is completed. Compared with the prior art, the drilling and scribing method for the curved steel truss girder can avoid drilling position deviation caused by arc bending.
本发明提供了一种曲线钢桁梁的钻孔划线方法，涉及桥梁施工技术领域，曲线钢桁梁的钻孔划线方法包括在钢板零件下料阶段，采用激光划线工艺，在弦杆的内侧腹板单元上绘制板单元组装系统线，并在折弯内弧侧绘制折弯系统线；根据系统线进行组焊及折弯，形成完整的弦杆结构，同时在弦杆结构上找出板单元组装系统线和折弯系统线的交点；确认内侧腹板单元各孔群到基准点的距离并以此为基准布设钻孔模板，并通过钻孔模板完成弦杆结构的内侧腹板的钻孔；通过反孔工装定位外侧腹板单元上的孔群位置，完成弦杆结构的外侧腹板的钻孔。本发明的曲线钢桁梁的钻孔划线方法，相比于现有技术，可以避免因折弯圆弧导致的钻孔位置偏差。
Drilling and scribing method for curved steel truss girder
一种曲线钢桁梁的钻孔划线方法
XU JIANWEI (author) / DANG XIAOYANG (author) / JIANG HENGXIN (author) / GAO BO (author) / WANG LEI (author) / XU WEIYU (author) / LIN HENGQUAN (author) / GUO HONGYAN (author) / CHEN QIAN (author) / ZHANG LITAO (author)
2024-11-29
Patent
Electronic Resource
Chinese
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