Method for preparing ellipse-like hole honeycomb web plate

An elliptical hole and ellipse-like technology is applied in the field of preparation of elliptical hole honeycomb beam webs, which can solve the problems of complex production process, low production efficiency, waste of steel and other problems, and achieve the effects of reducing production cost, improving production efficiency and saving steel.

Inactive Publication Date: 2008-01-16
HENAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production process of this cross-section form is relatively complicated. At present, the method of directly opening holes on the web is mostly used.
This method has low production efficiency, and more waste is generated by opening holes, which wastes steel.

Method used

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  • Method for preparing ellipse-like hole honeycomb web plate
  • Method for preparing ellipse-like hole honeycomb web plate
  • Method for preparing ellipse-like hole honeycomb web plate

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Embodiment Construction

[0027] The technical scheme of the present invention is described below with specific examples, but protection scope of the present invention is not limited thereto:

[0028] To produce a honeycomb beam with similar elliptical holes, the length of the major semi-axis a' of the similar elliptical hole opening on the web is 400 mm, the length of the minor semi-axis b' is 300 mm, and the distance L between the centers of adjacent similar elliptical holes is 1000 mm.

[0029] Adopt the preparation method of a kind of oval-hole honeycomb beam web of the present invention, carry out according to the following steps: 1) according to aforementioned formula (1), (2) determine the length of the major and minor semiaxes a, b of lofting ellipse to be respectively: a=400.2 mm, b=309.8mm;

[0030] 2) On both sides of the center line of the I-beam web, determine a parallel line with a distance of b / 2 from the center line, which are respectively recorded as boundary lines 1 and 2;

[0031] 3...

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Abstract

The invention relates to the technical field of building steel structure, particularly a manufacturing method of oval-like honeycomb beam web. The manufacturing method comprises determining the size of ellipse sample, determining two boundary lines on the beam web, marking the central and the corresponding semi-elliptic curves of the ellipse sample on each of the two boundary lines (the semi-elliptic curves are crossed to each other), connecting the crossing points if the connection line of the adjacent crossing points is parallel o the boundary line to obtain two line groups in parallel to the two boundary lines and positioned at the same side of the central line; combining the semi-elliptic curves with centers being on the same boundary line with the line groups homolateral and parallel to the two boundary lines to form a cutting line and trimming line, cutting the I-shaped beam web along the cutting line to form a concave part and a rim part; trimming the rim part along the trimming line to form another concave part; performing misplaced welding of the concave parts to obtain an oval-like honeycomb beam web. The method greatly increases the production efficiency of oval-like honeycomb beam web, reduces the waste produced during perforation, saves the steel products, and reduces the production cost.

Description

(1) Technical field [0001] The invention relates to a method for preparing an elliptical-hole honeycomb beam web in the field of building steel structures. (2) Background technology [0002] Steel beam is one of the most important load-bearing components in steel structure engineering, and I-shaped steel beam is the most widely used one. The upper and lower flanges of the I-shaped steel beam mainly bear the bending moment, while the web mainly bears the shear force. Since the beam is mostly a bending member, especially a long-span beam, in order to increase the moment of moment of inertia of the beam, the height of the beam is usually made bigger. At this time, the web often cannot give full play to the role of steel. Therefore, opening appropriate amount of holes in the web can reduce the steel consumption without affecting the bearing capacity, which has better technical and economic effects. At the same time, the openings can be used as channels for various pipelines t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/08
Inventor 杜文风高博青
Owner HENAN UNIVERSITY
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