A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Accurate positioning and mounting method for cable-stayed bridge main tower steel anchor beam cable guide pipe
The invention discloses an accurate positioning and mounting method for a cable-stayed bridge main tower steel anchor beam cable guide pipe. A steel anchor beam is assembled on a steel corbel welded with the cable guide pipe and is in bolted connection to form an assembly combination; the intersection point of the oval long axis of the lower port of the cable conduit and the upper portion of the slope of the lower port of the cable conduit serves as a positioning reference point of the lower port of the cable conduit, and the intersection point of the plane of the upper port of the cable conduit and the central axis of the cable conduit serves as a steel anchor beam anchoring point; hoisting the assembly on a stiff skeleton of the main tower; measuring the coordinates of the anchoring points of the steel anchor beam through a total station, and determining and correcting the mounting positions of the anchoring points of the steel anchor beam; the coordinates of the anchoring points of the steel anchor beams and the coordinates of the positioning reference points are measured through the total station, the elevation deviation value and the transverse bridge direction deviation value are calculated, the bolts are loosened, and the steel corbels are moved according to the elevation deviation value and the transverse bridge direction deviation value to correct the installation positions of the positioning reference points at the lower end opening of the cable guide pipe. Accurate positioning of the upper port and the lower port of the cable guide pipe can be achieved, and the accuracy of the installation position is guaranteed.
本发明公开一种斜拉桥主塔钢锚梁索导管精确定位安装方法，将钢锚梁装配在焊接有索导管的钢牛腿上并螺栓连接形成装配组合体；将索导管下端口的椭圆形的长轴线与索导管下端口的斜面上部的交点作为索导管下端口的定位参考点，将索导管上端口平面与索导管中心轴线的交点作为钢锚梁锚固点；将装配组合体吊装在主塔劲性骨架上；通过全站仪测量钢锚梁锚固点的坐标确定及校正钢锚梁锚固点的安装位置；通过全站仪测量各钢锚梁锚固点坐标和各定位参考点坐标计算高程偏差值和横桥向偏差值，松动螺栓，根据高程偏差值和横桥向偏差值移动钢牛腿来校正索导管下端口的定位参考点的安装位置。本发明能够实现索导管上下端口的精确定位，保证其安装位置的准确性。
Accurate positioning and mounting method for cable-stayed bridge main tower steel anchor beam cable guide pipe
The invention discloses an accurate positioning and mounting method for a cable-stayed bridge main tower steel anchor beam cable guide pipe. A steel anchor beam is assembled on a steel corbel welded with the cable guide pipe and is in bolted connection to form an assembly combination; the intersection point of the oval long axis of the lower port of the cable conduit and the upper portion of the slope of the lower port of the cable conduit serves as a positioning reference point of the lower port of the cable conduit, and the intersection point of the plane of the upper port of the cable conduit and the central axis of the cable conduit serves as a steel anchor beam anchoring point; hoisting the assembly on a stiff skeleton of the main tower; measuring the coordinates of the anchoring points of the steel anchor beam through a total station, and determining and correcting the mounting positions of the anchoring points of the steel anchor beam; the coordinates of the anchoring points of the steel anchor beams and the coordinates of the positioning reference points are measured through the total station, the elevation deviation value and the transverse bridge direction deviation value are calculated, the bolts are loosened, and the steel corbels are moved according to the elevation deviation value and the transverse bridge direction deviation value to correct the installation positions of the positioning reference points at the lower end opening of the cable guide pipe. Accurate positioning of the upper port and the lower port of the cable guide pipe can be achieved, and the accuracy of the installation position is guaranteed.
本发明公开一种斜拉桥主塔钢锚梁索导管精确定位安装方法，将钢锚梁装配在焊接有索导管的钢牛腿上并螺栓连接形成装配组合体；将索导管下端口的椭圆形的长轴线与索导管下端口的斜面上部的交点作为索导管下端口的定位参考点，将索导管上端口平面与索导管中心轴线的交点作为钢锚梁锚固点；将装配组合体吊装在主塔劲性骨架上；通过全站仪测量钢锚梁锚固点的坐标确定及校正钢锚梁锚固点的安装位置；通过全站仪测量各钢锚梁锚固点坐标和各定位参考点坐标计算高程偏差值和横桥向偏差值，松动螺栓，根据高程偏差值和横桥向偏差值移动钢牛腿来校正索导管下端口的定位参考点的安装位置。本发明能够实现索导管上下端口的精确定位，保证其安装位置的准确性。
Accurate positioning and mounting method for cable-stayed bridge main tower steel anchor beam cable guide pipe
一种斜拉桥主塔钢锚梁索导管精确定位安装方法
XU PENG (author) / YANG ZISONG (author) / DING DONGQIANG (author) / QIAN MEIGANG (author) / WEI GUANGUO (author) / KIM IN-HEUNG (author) / LI CHENGYANG (author) / XU GUOJIE (author) / TANG QING (author) / ZHOU JIANJUN (author)
2024-10-11
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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