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U-shaped rib assembling and positioning device

A positioning device, U-shaped technology, applied in auxiliary devices, auxiliary welding equipment, welding equipment, etc., can solve the problems of difficult precise control of the assembly gap between U-shaped ribs and bridge decks, fatigue cracks in plate units, etc., and eliminate the root causes of cracks , the gap is uniform, and the effect of improving the overall anti-fatigue ability

Pending Publication Date: 2021-04-06
CHINA RAILWAY SHANQIAO GRP CO LTD +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the assembly gap between the U-shaped rib and the bridge deck in the existing welding process of the plate unit is difficult to be accurately controlled, which leads to the problem that the plate unit is prone to fatigue cracks, the invention provides a U-shaped rib assembly positioning device

Method used

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  • U-shaped rib assembling and positioning device
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  • U-shaped rib assembling and positioning device

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Embodiment 1

[0020] A U-shaped rib assembly and positioning device, mainly composed of a connecting rod 1 connected to a pressure mechanism, and a first pressing plate 2 and a second pressing plate 3 symmetrically hinged on the connecting rod, the first pressing plate 2 and the second pressing plate The second pressing plate 3 is a "7" shape that fits one side of the U-shaped rib, corresponding to the left and right sides of the U-shaped rib 4, as figure 1 shown.

[0021] When the pressure mechanism exerts force on the connecting rod from top to bottom, the force is evenly distributed to both sides of the U-shaped rib through the two pressure plates hinged with the connecting rod. The "balance" here does not mean equal, but even if there is a slight deviation between the two limbs of the U-shaped rib, the assembly and positioning device can automatically adjust the force applied to the two limbs of the U-shaped rib, so that the two limbs of the U-shaped rib and the bridge deck The gap siz...

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Abstract

The invention provides a U-shaped rib assembling and positioning device which is mainly composed of a connecting rod, a first pressing plate and a second pressing plate. The connecting rod is connected with a pressure mechanism, the first pressing plate and the second pressing plate are symmetrically hinged to the connecting rod, and the first pressing plate and the second pressing plate are in a 7 shape attached to one side of a U-shaped rib and correspond to the left side and the right side of the U-shaped rib respectively. According to the manufacturing deviation of two branches of the U-shaped rib, the assembling pressure can be reasonably distributed, it is guaranteed that the welding edges of the two branches of the U-shaped rib are closely attached to the bridge deck enough, and gaps are uniform, so that it is guaranteed that a high-quality welding joint is obtained during welding, crack generation sources are eliminated, and the overall anti-fatigue capacity of an orthotropic steel bridge deck is improved.

Description

technical field [0001] The invention relates to the technical field of plate unit assembly, in particular to a U-shaped rib assembly positioning device. Background technique [0002] As an important steel structure bridge type, steel box girder is widely used. The plate element is the most basic structural unit of the steel box girder structure. Orthotropic steel bridge deck is a common deck unit, which is difficult to manufacture and has outstanding advantages such as light weight and high strength. It is the preferred deck structure of long-span bridges and an important symbolic innovation of modern bridge engineering. [0003] Due to the influence of factors such as service environment, loading conditions, structural system, structural detail design and manufacturing technology, the fatigue cracking problem of orthotropic steel bridge decks is prominent. Through the analysis of typical cases, it is found that the gap between the U-shaped rib and the bridge deck is one...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/04B23K31/02
CPCB23K31/02B23K37/04
Inventor 邢扬柴飞范军旗龙东利高圣楠刘昊蔡晓辉
Owner CHINA RAILWAY SHANQIAO GRP CO LTD
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