A butt joint structure and joint method of two boards with different thicknesses

A technology of plates with different thicknesses, applied in building construction, construction, etc., can solve problems such as stress concentration, large consumables, and weak welding, and achieve the effects of stress dispersion, low material loss, and easy processing

Active Publication Date: 2022-05-24
CHINA CONSTR STEEL STRUCTURE JIANGSU CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A butt joint structure and joint method of two boards with different thicknesses
  • A butt joint structure and joint method of two boards with different thicknesses
  • A butt joint structure and joint method of two boards with different thicknesses

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specific Embodiment approach

[0047] like Figures 1 to 4 A specific embodiment of the method for butt joint of two sheets with different thicknesses shown includes the following steps: setting the cutting speed to 200 mm / min, the height of the cutting torch to 100 mm, and the pressure of oxygen to 0.9 Mpa.

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

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

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Abstract

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. A butt joint structure of two plates with different thicknesses, comprising: a first plate, including a first web and a pair of first wings, the first web and a pair of first wings form an “I” shape, and the first A web protrudes from one end of a pair of first flanges to form a first connection; a second plate includes a second web and a pair of second flanges, and the second web and a pair of second flanges form a " "I" shape, and one end of a pair of second wings protrudes from the second web, and after cutting, a second connection part that is completely spliced ​​with the first connection part is formed. The invention provides a butt joint structure of two plates with different thicknesses. The shape of the first web and the second web is relatively regular, easy to process, and the material loss is small. After the butt joint, the butt joint position of the web and the web is not in place. On the same plane, the stress after welding is dispersed and the welding is stronger.

Description

technical field [0001] The invention relates to the technical field of sheet metal splicing, in particular to a butt joint structure and a butt joint method of two sheet materials with different thicknesses. Background technique [0002] For steel structures used in multi-story buildings, thicker steel plates are usually used at the lower floors to provide good support. The higher the floors are, the thinner the steel plates can be. Therefore, there will be The case where two sheets of different thicknesses are butted. When the existing H-beam is spliced ​​with a thick plate and a thin plate, a direct port design is usually adopted, that is, the butt joint position of the flange plate and the web is on the same plane, so that the two H-beams have stress concentration after welding, resulting in weak welding. . Moreover, in order to connect firmly, it is necessary to process a transition bevel on the flange plate of the thick H-beam, so that the thicknesses of the flange pl...

Claims

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Application Information

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Patent Type & Authority Patents(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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