CN112411873A

CN112411873A - Expanded H-shaped steel beam

Info

Publication number: CN112411873A
Application number: CN202011355554.5A
Authority: CN
Inventors: 欧阳琦; 阳春香; 梁伟顺
Original assignee: Hunan Hongyang Steel Structure Co ltd
Current assignee: Hunan Hongyang Steel Structure Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-02-26

Abstract

The invention discloses an expanded H-shaped steel beam which at least comprises a web plate, a first flange plate and a second flange plate, wherein the first flange plate is arranged at the first end of the web plate, the second flange plate is arranged at the second end of the web plate, the first flange plate and the second flange plate are approximately parallel to each other, a first buckling plate and a second buckling plate are arranged on the outer side of the first flange plate, a third buckling plate and a fourth buckling plate are arranged on the outer side of the second flange plate, the first buckling plate and the second buckling plate are symmetrical about a first central axis, the third buckling plate and the fourth buckling plate are symmetrical about the first central axis, and a first distance between the first buckling plate and the second buckling plate is smaller than a second distance between the third buckling plate and the fourth buckling plate. This application is when using, only needs to lean on first buckle board and third buckle board to lean on the contact with second buckle board and fourth buckle board to lean on the extension that the contact can accomplish H shaped steel roof beam, whole extension process convenient operation is swift, does not need extra mounting to accomplish the extension.

Description

Expanded H-shaped steel beam

Technical Field

The invention relates to the technical field of H-shaped steel beam structures, in particular to an expanded H-shaped steel beam.

Background

The inner side and the outer side of the flange of the H-shaped steel beam are parallel or close to parallel, and the end part of the flange is in a right angle, so that the parallel flange I-shaped steel is obtained. The thickness of a web plate of the H-shaped steel beam is smaller than that of a common I-steel with the same height as the web plate, and the width of a flange is larger than that of the common I-steel with the same height as the web plate, so that the H-shaped steel beam is named as wide-flange I-steel. The section modulus, the inertia moment and the corresponding strength of the H-shaped steel beam are obviously superior to those of common I-shaped steel with the same single weight due to the shape. When the steel is used in metal structures with different requirements, the steel shows excellent performance no matter bears bending moment, pressure load and eccentric load, the bearing capacity can be greatly improved compared with that of the common I-steel, and the metal is saved by 10-40%. The existing H-shaped steel beam has no shape change at the connecting part, and can be connected and fixed only through a plurality of connecting parts such as bolts or screws, and the operation is complicated. Accordingly, the present application is directed to an expanded H-beam that overcomes the above-mentioned disadvantages.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an expanded H-shaped steel beam.

The purpose of the invention is realized by the following technical scheme: the utility model provides an extension type H shaped steel roof beam, includes web, first flange board and second flange board at least, first flange board sets up in the first end of web, the second flange board sets up in the second end of web, and first flange board and second flange board are roughly parallel to each other, are provided with first buckle board and second buckle board on the outside of first flange board, and the outside of second flange board is provided with third buckle board and fourth buckle board, first buckle board with the second buckle board is about first axis symmetry, the third buckle board with the fourth buckle board about first axis symmetry, wherein, first distance between first buckle board and the second buckle board is less than the second distance between third buckle board and the fourth buckle board.

Preferably, a first included angle smaller than 90 degrees is formed between the first buckling plate and the first flange plate, and a second included angle larger than 90 degrees is formed between the third buckling plate and the second flange plate.

Preferably, the first and second flange plates are substantially equal in length, and the web has a length less than the length of the first flange plate.

Preferably, the inner wall of the first flange plate is provided with a plurality of first protrusions spaced from each other, and the inner wall of the second flange plate is provided with a plurality of second protrusions spaced from each other.

The invention has the following advantages:

(1) when two H-shaped steel beams need to be expanded and used side by side, the first buckling plate and the third buckling plate only need to be abutted and contacted, and the second buckling plate and the fourth buckling plate are abutted and contacted. The whole expansion process is convenient and quick to operate, and expansion can be completed without additional fixing pieces.

(2) Be provided with the first arch of a plurality of interval each other on the inner wall of first flange board, be provided with the second arch of a plurality of interval each other on the inner wall of second flange board, the H shaped steel roof beam that can be convenient for expands along length direction.

(3) The first protrusion and the second protrusion can increase the bending strength of the H-beam.

Drawings

FIG. 1 is a front view of a preferred expanded H-beam of the present invention;

FIG. 2 is a schematic diagram illustrating a manner of expanding and splicing two preferred expanded H-shaped steel beams in the width direction according to the present invention;

FIG. 3 is a top view of a preferred expanded H-beam of the present invention;

FIG. 4 is a schematic view of the preferred manner of expanding and splicing two expanded H-shaped steel beams along the length direction;

fig. 5 is a sectional view of section a-a.

In the figure, 1-web, 2-first flange plate, 3-second flange plate, 4-first buckle plate, 5-second buckle plate, 6-third buckle plate, 7-fourth buckle plate, 8-first central axis, 9-first protrusion, 10-second protrusion, alpha-first included angle, beta-second included angle, 11-plug connector and 12-third protrusion.

Detailed Description

The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:

as shown in fig. 1 to 5, the present application provides an extended H-shaped steel beam, which at least includes a web 1, a first flange plate 2 and a second flange plate 3. A first flange plate 2 is provided at a first end of the web 1. A second flange plate 3 is provided at a second end of the web 1. The first 2 and second 3 flanges are substantially parallel to each other. As shown in fig. 1, the first end may be a left end of the web 1, and the second end may be a right end of the web 1.

A first snap-in plate 4 and a second snap-in plate 5 are arranged on the outer side of the first flange plate 2. The outside of second flange plate 3 is provided with third buckle 6 and fourth buckle 7. The first and

second snap plates

4, 5 are symmetrical about a first central axis 8. The third snap 6 and the fourth snap 7 are symmetrical with respect to the first central axis 8. A first distance between the first latch plate 4 and the second latch plate 5 is smaller than a second distance between the third latch plate 6 and the fourth latch plate 7. The first buckling plate 4 and the first flange plate 2 form a first included angle alpha smaller than 90 degrees. The third clip 6 has a second angle beta with the second flange plate 3 which is greater than 90 deg.. When two H-shaped steel beams need to be expanded and used side by side, only the first buckling plate 4 and the third buckling plate 6 need to be abutted and contacted, and the second buckling plate and the fourth buckling plate 7 are abutted and contacted. The whole expansion process is convenient and quick to operate, and expansion can be completed without additional fixing pieces.

The first 2 and second 3 flanges are of substantially equal length, the web 1 being of a length less than the length of the first flange 2. A plurality of first protrusions 9 are arranged on the inner wall of the first flange plate 2 and a plurality of second protrusions 10 are arranged on the inner wall of the second flange plate 3. When the H-shaped steel beams need to be extended in the length direction thereof, the two H-shaped steel beams may be connected by the connectors 11. The plug-in unit 11 is in a cube shape, and the upper and lower surfaces thereof are provided with third protrusions 12. The width of the plug 11 is substantially equal to the distance between the first flange plate 2 and the second flange plate 3. The third protrusions 12 and the first protrusions 9 are in a staggered state, so that the third protrusions 12 can be nested in the grooves between two adjacent first protrusions 9 or two adjacent second protrusions 10, and finally, two H-shaped steel beams can be connected through the connectors 11.

The working principle of this application does: as shown in fig. 2, when the H-shaped steel beam needs to be expanded along the width direction thereof, only two H-shaped steel beams need to be placed in parallel, and then move in opposite directions so as to enable the first buckling plate 4 and the third buckling plate 6 to be abutted and contacted, and enable the second buckling plate and the fourth buckling plate 7 to be abutted and contacted. As shown in fig. 4, when the H-shaped steel beam is expanded in the length direction thereof, the connectors 11 are simply inserted into the grooves between the adjacent two first protrusions 9 or the adjacent two second protrusions 10. The whole expanding process is convenient and quick.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An extension type H shaped steel roof beam, includes web (1), first flange board (2) and second flange board (3) at least, first flange board (2) set up in the first end of web (1), second flange board (3) set up in the second end of web (1), and first flange board (2) and second flange board (3) are roughly parallel to each other, its characterized in that: be provided with first buckle board (4) and second buckle board (5) on the outside of first flange board (2), the outside of second flange board (3) is provided with third buckle board (6) and fourth buckle board (7), first buckle board (4) with second buckle board (5) are about second axis (8) symmetry, third buckle board (6) with fourth buckle board (7) are about first axis (8) symmetry, and wherein, the first distance between first buckle board (4) and second buckle board (5) is less than the second distance between third buckle board (6) and fourth buckle board (7).

2. An expanded H-beam steel according to claim 1, wherein: a first included angle (alpha) smaller than 90 degrees is formed between the first buckling plate (4) and the first flange plate (2), and a second included angle (beta) larger than 90 degrees is formed between the third buckling plate (6) and the second flange plate (3).

3. An expanded H-beam steel according to claim 1, wherein: the lengths of the first flange plate (2) and the second flange plate (3) are approximately equal, and the length of the web plate (1) is smaller than that of the first flange plate (2).

4. An expanded H-beam steel according to claim 1, wherein: the inner wall of the first flange plate (2) is provided with a plurality of first protrusions (9) which are mutually spaced, and the inner wall of the second flange plate (3) is provided with a plurality of second protrusions (10) which are mutually spaced.