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Technique for preparing large cross section thin plate limosis steel pole

A production process and cross-section technology, which is applied in the field of high-section thin-plate hollow steel column production process, can solve the problems of large web deformation, etc., and achieve the effects of small web deformation, high pass rate, and reduced welding volume

Inactive Publication Date: 2009-09-30
ZHEJIANG BAOYE CONSTR GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention aims to solve the deficiency of large web deformation in the production process of thin-plate hollow steel columns with high and large cross-sections, and provides a production process for high-large cross-section thin-plate hollow steel columns that can effectively control the welding deformation of the webs

Method used

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  • Technique for preparing large cross section thin plate limosis steel pole
  • Technique for preparing large cross section thin plate limosis steel pole
  • Technique for preparing large cross section thin plate limosis steel pole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, the manufacturing process of the hollow steel column of the tall and large cross-section thin plate of the present invention, its manufacturing process is: blanking - erecting steel plates on the first web 1, end plates, stiffening plates - assembling the second web Plate 2-Assembly wing plate-Assembly steel pipe-Welding-Grinding.

[0031] Specifically, the following steps are performed:

[0032] (1) Cutting according to the design size.

[0033] (2) if figure 2 As shown, on the first web 1, erect steel plates 5, 6, 7, end plates 9 and stiffening plates 8 are assembled by spot welding according to the marked positions respectively.

[0034] (3) if image 3 As shown, punch a hole according to the processing drawing on the other web 2, combine it with the first web 1, and weld the web 2 and the erecting steel plates 5, 6, and 7 plug holes. The welding length of the intermittent welding between the erecting steel plate and the first web 1 i...

Embodiment 2

[0040] In this embodiment, the welding length of the intermittent welding between the erecting steel plate and the first web 1 is 50 mm, and the spacing is 150 mm; the hole diameter of the plug welding with the second web 2 is 12 mm, and the spacing is 150 mm. The rest are the same as the examples.

Embodiment 3

[0042] In this embodiment, the welding length of the intermittent welding between the erecting steel plate and the first web 1 is 25 mm, and the spacing is 200 mm; the hole diameter of the plug welding with the second web 2 is 12 mm, and the spacing is 200 mm. The rest are the same as the examples.

[0043] According to the schemes of the three embodiments, a steel column was made respectively. It was found that the smaller the welding length and the larger the spacing, the smaller the deformation of the steel column. The steel column produced according to the scheme of this embodiment can almost meet the design and specification requirements without correction.

[0044] The steel column manufactured according to the process of this embodiment is subjected to a mechanical simulation test of the design load. The testing standards are (1) "Technical Standards for Building Structure Testing" (GB / 550344-2004); (2) "Code for Design of Steel Structures" (GB50017-2003).

[0045] 1. ...

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Abstract

The invention discloses a manufacturing process of a tall and large cross-section thin-plate hollow steel column. The manufacturing process is as follows: blanking - erecting steel plates on the first web 1, end plates, stiffening plates - erecting the second web 2 -Assembling the wing plate-Assembling the steel pipe-Welding-Grinding, the manufacturing process of the present invention can control the welding deformation of the web.

Description

technical field [0001] The invention relates to a special welding process of thin-plate hollow steel columns with high and large cross-sections, especially related to the erection of steel plates. Background technique [0002] For tall and large cross-section thin-plate hollow steel columns, because the steel plates are very thin, a large amount of heat is generated during welding to deform the steel columns, especially the web deformation caused by the welding of erecting steel plates and webs. The production of conventional tall and large cross-section thin plate hollow steel columns is carried out in accordance with the "Welding Technical Regulations for Building Steel Structures" (JGJ81-2002). In order to ensure the strength, the vertical steel plate and the web on one side are fully welded, and discontinuous welding is allowed on the other side , The specific process conditions are: welding 100mm, intermittent 100mm. In the construction of the curtain wall and curtain ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04C3/32
Inventor 华玉武林守忠李新武汪自强王荣富
Owner ZHEJIANG BAOYE CONSTR GROUP CO LTD