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Manufacture method for double-curve H-shaped steel

A production method, the technology of H-shaped steel, which is applied in the field of production of hyperboloid H-shaped steel, can solve the problems of high cost and long cycle, and achieve the effects of simple equipment, cost saving and shortened production period

Inactive Publication Date: 2015-05-27
YINGDU BRIDGE STEEL STRUCTURE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no mature experience in the production of hyperboloid H-shaped steel at home and abroad. Some professional manufacturers use special molds or large-scale cold bending equipment to make it. The cost is high and the cycle is long, which cannot meet the requirements of this project.

Method used

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  • Manufacture method for double-curve H-shaped steel
  • Manufacture method for double-curve H-shaped steel
  • Manufacture method for double-curve H-shaped steel

Examples

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Embodiment 1

[0016] A method for making a hyperboloid H-shaped steel in this embodiment includes the following steps: 1) re-inspection of incoming materials for the horizontal plate, flat plate of the horizontal plate, and pretreatment; wired type, such as figure 1 as shown, figure 1 The middle web 11, the upper flange plate 12, and the lower flange plate 13; most of the straight H-shaped steels usually produced are assembled by the assembly machine, but this kind of H-shaped steel cannot be assembled on the assembly machine due to the complex and changeable line shape. Finish. 2) In order to ensure the manufacturing accuracy of hyperboloid H-shaped steel, computer CAD three-dimensional lofting is adopted to establish a three-dimensional coordinate system, and the web 11 and flange plates (upper flange plate 12 and lower flange plate 13) of the curved H-shaped steel are planar Expand; 3) Cut and blank the expanded flange plate (upper flange plate 12, lower flange plate 13) and web 11 on ...

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Abstract

The invention discloses a manufacture method for double-curve H-shaped steel. The manufacture method comprises the following steps of: 1) reviewing the material quality of a supplied horizontal plate, flattening the horizontal plate, and pre-processing; 2) three-dimensional lofting by a computer, and spreading in a plane; 3) cutting and blanking on a numeric control cutting machine; 4) opening a groove on an H-shaped steel web, and carrying out the butt welding; 5) marking a bending line and an assembly line on the web and a flange plate; 6) manufacturing a bending jig frame according to three-dimensional coordinates; 7) bending the web and the flange plate via the method of flame rectification assisting cold bending formation; 8) manufacturing a assembly jig frame; 9) combining position welding and spot-welding on an upper flange plate and a lower flange plate respectively assembled on an assembly jig frame group; 10) welding the soldering seam between the web and the lower flange plate; 11) lifting the component from the jig frame, and turning over the component to weld the soldering seam between the web and the upper flange plate; and 12) returning the jig for a repeated inspection, and carrying out the three-dimensional coordinates detection through a total-station instrument. According to the manufacture method, used equipment is simple, and efficiencies on manufacture and production are improved.

Description

technical field [0001] The invention relates to a method for manufacturing a hyperboloid H-shaped steel. Background technique [0002] Today, with the rapid development of bridge steel structure technology, space hyperbolic structure H-shaped steel is also increasingly widely used in the field of bridge steel structure. At present, there is no mature experience in the production of hyperboloid H-shaped steel at home and abroad. Some professional manufacturers use special molds or large-scale cold bending equipment to make it. The cost is high and the cycle is long, which cannot meet the requirements of this project. Contents of the invention [0003] The purpose of the present invention is to provide a method for manufacturing hyperboloid H-shaped steel. The present invention solves the difficult problem of making hyperboloid H-shaped steel. The equipment is simple, effective and cost-effective while ensuring manufacturing accuracy and simplifying the manufacturing process...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P17/00
Inventor 闫坤
Owner YINGDU BRIDGE STEEL STRUCTURE ENG
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