A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Accurate installation method of cable-stayed bridge girder cable guide pipe
The invention provides an accurate mounting method of a cable-stayed bridge girder cable conduit, which comprises the following steps of: lofting a perforation position of the cable conduit on a template, and forming a square notch at a corresponding position of the template; welding a cable conduit placing platform A on the template, and measuring and setting out coordinates on two sides of a cable conduit bottom anchor backing plate; a worker is matched with a tower crane to lift the cable guide pipe, so that the two corners of the cable guide pipe bottom anchor bearing plate coincide with the marks of the coordinate points; an axis centering tool C is installed on an upper pipe opening of the cable guide pipe, the axis centering tool adjusts the position of the upper pipe opening up and down based on the total station, and alignment is completed; a cable guide pipe stiff framework steel support is installed, after a cableway pipe anchor cushion plate is anchored, a steel plate presses a formwork notch, and the four corners are pressed through steel bar pressing nails. A three-point positioning method is innovatively introduced, a set elevation plane is firstly created in a space structure, two coordinate points are determined on the plane, then a third point in the space is determined under the assistance of a tool, and the lofting precision is greatly improved.
本发明提供一种斜拉桥主梁索导管的精确安装方法,包括如下步骤：放样出索导管在模板上的穿孔位置，在模板对应位置开方形槽口；在模板上焊接索导管放置平台A，测量放样出索导管底锚垫板两边的坐标；人工配合塔吊，起吊索导管，使索导管底锚垫板的两个边角与坐标点的标记重合；在索导管上管口安装轴心对中工装C，基于全站仪、轴心对中工装上下调整上管口位置，完成对正；安装索导管劲性骨架钢支撑，将索道管锚垫板锚后钢板压住模板开槽口，四角用钢筋压钉压住。本发明创新性的引入三点定位方法，在空间结构中先创造一个既定的高程平面，在该平面上确定两个坐标点，然后在工装的辅助下确定空间第三点，大大提高了放样精度。
Accurate installation method of cable-stayed bridge girder cable guide pipe
The invention provides an accurate mounting method of a cable-stayed bridge girder cable conduit, which comprises the following steps of: lofting a perforation position of the cable conduit on a template, and forming a square notch at a corresponding position of the template; welding a cable conduit placing platform A on the template, and measuring and setting out coordinates on two sides of a cable conduit bottom anchor backing plate; a worker is matched with a tower crane to lift the cable guide pipe, so that the two corners of the cable guide pipe bottom anchor bearing plate coincide with the marks of the coordinate points; an axis centering tool C is installed on an upper pipe opening of the cable guide pipe, the axis centering tool adjusts the position of the upper pipe opening up and down based on the total station, and alignment is completed; a cable guide pipe stiff framework steel support is installed, after a cableway pipe anchor cushion plate is anchored, a steel plate presses a formwork notch, and the four corners are pressed through steel bar pressing nails. A three-point positioning method is innovatively introduced, a set elevation plane is firstly created in a space structure, two coordinate points are determined on the plane, then a third point in the space is determined under the assistance of a tool, and the lofting precision is greatly improved.
本发明提供一种斜拉桥主梁索导管的精确安装方法,包括如下步骤：放样出索导管在模板上的穿孔位置，在模板对应位置开方形槽口；在模板上焊接索导管放置平台A，测量放样出索导管底锚垫板两边的坐标；人工配合塔吊，起吊索导管，使索导管底锚垫板的两个边角与坐标点的标记重合；在索导管上管口安装轴心对中工装C，基于全站仪、轴心对中工装上下调整上管口位置，完成对正；安装索导管劲性骨架钢支撑，将索道管锚垫板锚后钢板压住模板开槽口，四角用钢筋压钉压住。本发明创新性的引入三点定位方法，在空间结构中先创造一个既定的高程平面，在该平面上确定两个坐标点，然后在工装的辅助下确定空间第三点，大大提高了放样精度。
Accurate installation method of cable-stayed bridge girder cable guide pipe
一种斜拉桥主梁索导管的精确安装方法
ZHAO XIAODONG (author) / ZHANG CHANGXUAN (author) / LYU CHAO (author) / WU XIANFEI (author) / GAO SHUOJIE (author) / TIAN FEIHU (author) / DUAN CHANGXIN (author) / DANG YAODONG (author) / LI GUOPING (author) / HAN KAIKAI (author)
2023-10-03
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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