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Butt-joint structure and butt-joint method for two plates with different thicknesses

A technology of plates with different thicknesses, applied in building construction, construction, etc., can solve the problems of large consumables, weak welding, stress concentration, etc., achieve the effects of less material loss, ensure docking stability, and reduce stress concentration

Active Publication Date: 2020-11-03
CHINA CONSTR STEEL STRUCTURE JIANGSU CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the existing defects of stress concentration in the butt joint structure of two plates with different thicknesses, resulting in weak welding and large consumables

Method used

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  • Butt-joint structure and butt-joint method for two plates with different thicknesses
  • Butt-joint structure and butt-joint method for two plates with different thicknesses
  • Butt-joint structure and butt-joint method for two plates with different thicknesses

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specific Embodiment approach

[0047] Such as Figures 1 to 4 A specific implementation of the method for joining two plates with different thicknesses shown includes the following steps: setting the cutting speed to 200mm / min, the height of the cutting torch to 100mm, and the pressure of oxygen to 0.9Mpa.

[0048] The two adjacent corners of the prefabricated board are cut according to the preset size to form the first web 3 with the first splicing surface and two first transition slopes, the length of the first web 3 is longer than the first The length of the wing plate 2, a pair of prefabricated first wing plates 2 are vertically welded on the opposite sides of the first web 3 respectively to form the first plate 1 of the "I" shape structure, and the first web 3 protrudes Parts of a pair of first wing plates 2 form a first connecting portion 9;

[0049] A corner of the prefabricated plate is cut according to a preset size to form a second wing plate 5 having a second splicing surface and a second transi...

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Abstract

The invention relates to the technical field of plate splicing, in particular to a butt-joint structure and butt-joint method for two plates with different thicknesses. The butt-joint structure for the two plates with different thicknesses comprises the first plate and the second plate, wherein the first plate comprises a first web plate and a pair of first wing plates, the first web plate and thepair of first wing plates form an I shape, and one end of the first web plate protrudes out of the pair of first wing plates to form a first connecting part; and the second plate comprises a second web plate and a pair of second wing plates, the second web plate and the pair of second wing plates form an I shape, one ends of the pair of second wing plates protrude out of the second web plate, anda second connecting part completely spliced with the first connecting part is formed after cutting. According to the butt-joint structure for the two plates with different thicknesses, the first webplate and the second web plate are regular in shape, easy to machine and small in material loss, moreover, the butt-joint positions of the wing plates and the web plates are not located on the same plane after butt-joint, stress after welding is dispersed, and welding is firmer.

Description

technical field [0001] The invention relates to the technical field of plate splicing, in particular to a butt joint structure and a butt joint method of two plates with different thicknesses. Background technique [0002] For steel structures used in multi-storey buildings, thicker steel plates are usually required at the lower floors to provide good support. As the floors go up, the thickness of the steel plates can be gradually reduced. The case where two plates of different thicknesses are joined together. When the existing H-shaped steel is spliced ​​with the thick plate and the thin plate, the direct mouth design is usually adopted, that is, the butt joint position of the flange plate and the web plate is on the same plane, so that there will be stress concentration after the two H-shaped steels are welded, resulting in weak welding . Moreover, in order to make the butt joint firm, it is necessary to process a transition bevel to the flange plates of the thick H-shap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/08E04B1/61
CPCE04B1/08E04B1/6104
Inventor 孙留寇陈韬周军红殷健谈晶晶李佳文婧李兵
Owner CHINA CONSTR STEEL STRUCTURE JIANGSU CO LTD
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