Installation control method for space angle variable cross-section steel anchor beam stay cable system

Through the installation control method of the cable-stayed cable system of the space angle variable section steel anchor beam, the three-dimensional coordinate positioning of the steel anchor beam is achieved using components such as cow leg wall plates and brackets, which solves the problem of installation accuracy of steel anchor beams in large-span bridges. , improves the accuracy of tower column linear control and cable-stayed cable penetration path.

CN119287790APending Publication Date: 2025-01-10CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP JINGJIANG HEAVY IND CO LTD
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Patent Information

Application Number
CN202411698920.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-01-10

AI Technical Summary

Technical Problem

In large-span cable-stayed bridges, it is difficult to install and position the steel anchor beams, which affects the linear quality of the tower columns, and the construction of traditional concrete anchoring is complex and difficult to control.

Method used

The installation control method of the cable-stayed cable system of the steel anchor beam is adopted to realize the precise positioning and linear control of the three-dimensional coordinates of the steel anchor beam through components such as cow leg wall panels, brackets, limit gears, anchor boxes and anchor pipes. , ensure the accuracy of posture during installation.

Benefits of technology

It improves the accuracy of steel anchor beam installation and linear control of tower column structure, simplifies the installation process of complex structures, ensures the penetration path and anchoring accuracy of cable-stayed cables, and facilitates quality inspection and maintenance.

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Abstract

The invention relates to an installation control method for a space angle variable cross-section steel anchor beam stay cable system. The method comprises the steps that a bracket wall plate with four edges is provided; position control point lines are determined on the corbel wall plate, wherein the position control point lines comprise splicing control points, anchor point projections, a tower axis, a plumb line, a stay cable center line and a segment center line; providing a bracket, and installing the bracket by taking the central line of the segment as a reference center; a steel anchor beam body and limiting stoppers are provided, the two ends of the steel anchor beam body are installed on the brackets on the two bracket wall plates correspondingly, and the limiting stoppers are installed on the bracket wall plates; anchor boxes are provided, and the two anchor boxes are installed at the two ends of the steel anchor beam body correspondingly; and providing an anchor pipe, fixing the anchor pipe on the corbel wall plate, and enabling the anchor pipe to be coaxial with the cable penetrating hole of the anchor box so as to ensure the accuracy of the penetrating path of the stay cable. Precise positioning of spatial three-dimensional coordinates in the steel anchor beam mounting process is achieved, and the tower column construction line shape is guaranteed.
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Citation Information

Cited By

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