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High-altitude installation method of arch rib cross brace

An installation method and technology of arch rib cross bracing, which is applied in the direction of arch bridges, erection/assembly bridges, bridge parts, etc., can solve the problems of difficult control of precision and difficult installation of arch rib cross bracing

Inactive Publication Date: 2020-09-04
CCCC FOURTH HIGHWAY ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to provide a high-altitude installation method for arch rib cross braces that can ensure installation accuracy and welding quality in view of the problems that the installation of arch rib cross braces is difficult and the accuracy is difficult to control

Method used

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  • High-altitude installation method of arch rib cross brace
  • High-altitude installation method of arch rib cross brace
  • High-altitude installation method of arch rib cross brace

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Experimental program
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Embodiment Construction

[0018] The method of the present invention will be described below in conjunction with the accompanying drawings.

[0019] (1) if figure 2 As shown, in order to solve the problem of difficult high-altitude positioning of arch rib cross braces, the present invention divides each cross brace of arch rib cross braces into three segments, including two end segments 3 and a middle segment 4; The four end segments 3 of the two cross braces are pre-welded to the arch rib 1 before the arch rib is installed according to the designed installation position of the arch rib cross brace, and the two end segments 3 of each cross brace are welded The axes of the joints are on a straight line; because the above-mentioned welding is performed on the ground, the welding accuracy of each end segment can be guaranteed.

[0020] (2) if image 3 As shown, the middle section 4 of the two cross braces is welded on the ground to form an X-shaped intersection, ready to be hoisted into the air as a wh...

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Abstract

The invention relates to a high-altitude installation method of an arch rib cross brace. A cross brace rod is divided into three sections; two end sections are welded to an arch rib on the ground in advance so that overall positioning precision of the arch rib cross brace is guaranteed, movable butt joint sleeves are arranged at the two ends of the middle section respectively and used for being inbutt joint with the end sections in the air, the middle section and the two end sections are welded in a penetration welding mode after butt joint is completed, and installation construction qualityof the arch rib cross brace can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of steel pipe arch bridge construction, in particular to a high-altitude installation method for arch rib cross braces Background technique [0002] Such as figure 1 As shown, after the arch rib segment 1 of the CFST arch bridge is installed in place, cross braces need to be installed between the two upper chords and the two lower chords of the arch rib to increase the stability of the arch rib segment. The cross brace of the arch rib is an X-shaped structure, including two cross braces 2 intersecting each other. Each cross brace is made of a steel pipe, and its two ends are respectively welded to the two upper chords or the two lower chords of the arch rib. After the overall processing of the X-shaped arch rib cross brace is completed on the ground, it is hoisted by cables to the designed installation position and welded with the arch rib. Since the installation of the arch rib cross brace is a high-altit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D4/00E01D19/00E01D21/00
CPCE01D4/00E01D19/00E01D21/00
Inventor 王景宇党彦锋谭林军杨宇杨浩李伟武彦杰
Owner CCCC FOURTH HIGHWAY ENG