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Method for building load-bearing H-steel

A construction method, H-shaped steel technology, applied in the direction of manufacturing tools, workpiece edge parts, arc welding equipment, etc., can solve the problems of bending deformation, twisting deformation, corner deformation, etc., and achieve the effect of low manufacturing cost, convenient manufacturing and simple structure

Inactive Publication Date: 2013-03-13
大连船舶重工船业有限公司
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AI Technical Summary

Problems solved by technology

The self-made welded H-shaped steel often has angular deformation, bending deformation, especially twisting deformation, and it is difficult to correct once it is formed

Method used

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  • Method for building load-bearing H-steel
  • Method for building load-bearing H-steel
  • Method for building load-bearing H-steel

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0020] A kind of construction method of load-bearing H section steel, its content comprises the following steps:

[0021] The first step, cutting and edge preparation: to ensure the initial blanking size, plate cutting adopts gantry flame multi-nozzle cutting. H-shaped steel is welded by 7 webs and 8 flanges, and the groove is semi-penetrated, such as figure 1 shown. It can not only satisfy the load bearing, but also prevent deformation and improve the quality.

[0022] The second step, installation, positioning: such as figure 2 As shown, place the H-shaped steel tire frame on a flat field. Nail welding H-shaped steel 2 to be welded (the distance between the welding meat 4 is 300mm), the arc starting plate and the arc receiving plate 5, and the self-made fixture 3, such as image 3 As shown, clamp the upper and lower H-shaped stee...

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Abstract

The invention discloses a method for building load-bearing H-steel. The method comprises the following steps of: providing a joint way and a welding sequence, cutting a flange plate and a web plate, making edge preparation, and ensuring an initial blanking size, wherein gantry flame multi-mouth cutting is adopted in plate cutting, a half through welding form is adopted in the joint way, the H-steel is made by welding and splicing the web plate with the flange plate, and a half through welding groove form is adopted; preparing, making and positioning a required hard support, which comprises an H-steel jig, a self-made clamp and a brace to prevent deformation; and welding symmetrically and synchronously from a central position to two ends along the length direction of the H-steel. The load-bearing H-steel has the advantages of low production and manufacturing cost, simple structure, high place flexibility, convenience in manufacturing, effective guarantee of strength quality, and great reduction in cost and construction period consumption on correction after deformation.

Description

technical field [0001] The invention relates to a construction method of marine engineering structural section steel, in particular to a construction method of load-bearing H-section steel. Background technique [0002] The structure of H-shaped steel is a profile with "H"-shaped cross-section, which has a certain length. It is mainly divided into hot rolling and welding. [0003] At present, most of the ocean engineering steel structures exported by my country are designed in Europe and America and made in China. The result of this is that the specifications of the Chinese standard profiles are inconsistent with the design drawings and specification requirements, and cannot be replaced, and the quantity is small, which cannot be purchased in the market. At the same time, considering the construction period requirements, only welding methods can be used, especially H-shaped steel. . [0004] Many steel structure production enterprises do not have professional H-shaped ste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/16B23K9/32B23K33/00B23K103/04
Inventor 宋清竹李生鹏朱文辉
Owner 大连船舶重工船业有限公司
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