CN114453450A - Steel constructs uses H shaped steel - Google Patents
Steel constructs uses H shaped steel Download PDFInfo
- Publication number
- CN114453450A CN114453450A CN202210184783.8A CN202210184783A CN114453450A CN 114453450 A CN114453450 A CN 114453450A CN 202210184783 A CN202210184783 A CN 202210184783A CN 114453450 A CN114453450 A CN 114453450A
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- China
- Prior art keywords
- shaped steel
- steel
- shaped
- hollow
- manufacturing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 98
- 239000010959 steel Substances 0.000 title claims abstract description 98
- 238000004519 manufacturing process Methods 0.000 claims abstract description 22
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims description 6
- 239000012779 reinforcing material Substances 0.000 claims description 5
- 210000001015 abdomen Anatomy 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 9
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000007847 structural defect Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012763 reinforcing filler Substances 0.000 description 2
- 238000009785 tube rolling Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
Abstract
An H-shaped steel for steel structure, which is internally hollow H-shaped. Because the inside of the H-shaped steel is hollow, the inside hollow H-shaped steel has larger section area under the same length and weight, so that the strength and the rigidity of the H-shaped steel can be greatly enhanced. In addition, this H shaped steel has more reasonable structural shape, and this structural shape accords with H shaped steel's actual stress state, therefore this H shaped steel has apparent advantage on saving steel and avoiding structural defect to help realizing the lightweight of steel structure building. A method for manufacturing H-shaped steel comprises the step of rolling strip steel into hollow H-shaped steel by a press roll. The manufacturing method of the H-shaped steel does not need a complex welding process and can realize automatic production. In the long term, the comprehensive production cost of the H-shaped steel is lower than that of the existing H-shaped steel. Moreover, the surface of the H-shaped steel is in a closed state, and has no burrs and welding seams and good appearance quality.
Description
Technical Field
The invention relates to the field of steel structures, in particular to H-shaped steel for steel structures.
Background
A large amount of H-shaped steel is needed to be used in a steel structure building, the existing H-shaped steel is formed by welding an upper wing plate, a lower wing plate and a web plate, and the welding quality is a main factor influencing the integral bearing strength of the H-shaped steel. As described in the patent No. 201611045607.7, a complicated welding process is required between the wing plate and the web plate to reduce welding defects and ensure the bearing strength of the H-beam.
In terms of production process, the existing H-shaped steel can be manufactured only by cutting, blanking and welding, is seemingly simple, but is not ideal in energy and steel consumption. The reason is that the forming shape of the existing H-shaped steel is not the forming shape with the best strength, and a thicker steel plate and a complex welding process are needed to meet the bearing strength required by the H-shaped steel. Therefore, the existing production process of H-type steel is not economically and structurally optimal.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses H-shaped steel for steel structure, which aims to: the structure and the forming mode of the H-shaped steel are changed, the consumption of steel and energy is reduced on the premise of not reducing the bearing strength, and the influence of welding on the bearing strength of the H-shaped steel is avoided.
In order to achieve the purpose, the invention adopts the following technical scheme:
the H-shaped steel for the steel structure has a hollow inner H-shaped section; the manufacturing method of the H-shaped steel comprises the following steps:
s1: rolling the steel strip into a round pipe;
s2: rolling the round tube into the H-shaped steel.
According to the technical scheme, the fillet is arranged at the joint of the wing part and the abdomen of the H-shaped steel.
Further improves the technical proposal that the hollow part of the H-shaped steel is filled with composite reinforced materials.
Due to the adoption of the technical scheme, compared with the existing H-shaped steel, the H-shaped steel has the following beneficial effects:
because the inside of the H-shaped steel is hollow, the inside hollow H-shaped steel has larger section area under the same length and weight, so that the strength and the rigidity of the H-shaped steel can be greatly enhanced. In addition, this H shaped steel has more reasonable structural shape, and this structural shape accords with H shaped steel's actual stress state, therefore this H shaped steel has apparent advantage on saving steel and avoiding structural defect to help realizing the lightweight of steel structure building.
The manufacturing method of the H-shaped steel does not need a complex welding process and can realize automatic production. Although the equipment investment in the early stage is large, the comprehensive production cost is lower than that of the existing H-shaped steel in the long term due to the fact that manual welding is not needed and the production efficiency is high. In addition, the surface of the H-shaped steel is in a closed state, has no burrs and welding seams, and has good appearance quality.
Drawings
FIG. 1 is a schematic structural view of the H-shaped steel.
FIG. 2 is a schematic view showing the structure of the hollow portion of the H-beam after filling the composite reinforcing material.
Fig. 3 to 8 are schematic views illustrating a process of rolling a circular tube into H-section steel.
In the figure: 1. h-shaped steel; 2. a composite reinforcement material; 3. a circular tube; 4. and (4) pressing the rolls.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. It should also be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in FIG. 1, the cross-sectional shape of the H-section steel 1 is an H-shape having a hollow interior, and a fillet is provided at the joint between the wing and the abdomen. Since the present H-section steel 1 is hollow inside, the hollow inside H-section steel has a larger cross-sectional area for the same length and weight. Thus, the strength and rigidity of the H-shaped steel can be greatly enhanced in structural mechanics. Moreover, compare current H shaped steel, this H shaped steel has more reasonable structural shape, and this structural shape accords with H shaped steel's actual stress state, does not have unnecessary and unnecessary structure, therefore this H shaped steel has apparent advantage on saving steel and avoiding structural defect to help realizing the lightweight of steel structure building.
In addition, in order to further enhance the strength and rigidity of the present H-shaped steel, as shown in fig. 2, a composite reinforcing material 2 may be filled in the hollow portion of the H-shaped steel. The composite reinforcing material 2 is composed of resin and reinforcing filler, and the reinforcing filler can be glass fiber or carbon fiber and other reinforcing materials.
Because the H-shaped steel 1 is hollow inside, when the node is connected, an I-shaped node connecting plate can be directly inserted into the hollow part at one end of the H-shaped steel 1, and then the node connecting plate is connected with the H-shaped steel 1 through bolts or rivets. Obviously, the node connection mode has better strength and reliability in structure.
The manufacturing method determines the manufacturing cost, and the manufacturing method of the H-shaped steel can be obtained by a multi-wheel rolling mode. Specifically, the manufacturing method of the H-shaped steel comprises the following steps:
s1: first, the width of the steel strip is determined according to the section circumference of the H-section steel, then the steel strip is rolled into a cylindrical shape by a circular tube rolling machine, and the butt seam of the cylindrical surface is subjected to high-frequency welding to produce a circular tube 3, as shown in fig. 3. The round tube rolling machine is the existing equipment, and the forming process of the round tube 3 is also the existing one.
S2: as shown in fig. 4 to 8, the round tube 3 is gradually rolled into an H-shaped steel having a hollow inside by a multi-roll rolling machine. As can be seen from fig. 4 to 8, in the forming process of the H-shaped steel, the shapes of the press rolls 4 of the multi-roll press are sequentially changed to gradually roll the circular tube 3 into the shape required by the desired design.
Compared with the existing manufacturing method of the H-shaped steel, the manufacturing method does not need a complex welding process and can realize automatic production. Although the investment of the equipment in the early stage is large, the comprehensive production cost is lower than the existing production cost in the long term because manual welding is not needed and the production efficiency is high. Moreover, the obtained H-shaped steel has no burrs and welding seams and has good appearance quality.
The details of which are not described in the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a steel constructs uses H shaped steel, characterized by: the cross section of the H-shaped steel is in a hollow H shape; the manufacturing method of the H-shaped steel comprises the following steps:
s1: rolling the steel strip into a round pipe;
s2: rolling the round tube into the H-shaped steel.
2. The H-section steel for steel structure as claimed in claim 1, wherein: the joint of the wing part and the abdomen part of the H-shaped steel is provided with a fillet.
3. The H-section steel for steel structure as claimed in claim 1, wherein: the hollow part of the H-shaped steel is filled with a composite reinforcing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210184783.8A CN114453450A (en) | 2022-02-28 | 2022-02-28 | Steel constructs uses H shaped steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210184783.8A CN114453450A (en) | 2022-02-28 | 2022-02-28 | Steel constructs uses H shaped steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114453450A true CN114453450A (en) | 2022-05-10 |
Family
ID=81414726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210184783.8A Pending CN114453450A (en) | 2022-02-28 | 2022-02-28 | Steel constructs uses H shaped steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114453450A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5612436A (en) * | 1979-07-13 | 1981-02-06 | Nitsusen Kagaku Kogyo Kk | Protecting method of underwater h-steel pile and protection cover thereof |
| JPH0558705U (en) * | 1992-01-24 | 1993-08-03 | 戸田建設株式会社 | Steel brace |
| JPH08338103A (en) * | 1995-06-12 | 1996-12-24 | Nippon Steel Corp | Structure material for construction |
| JPH10225718A (en) * | 1997-02-13 | 1998-08-25 | Sumikin Kozai Kogyo Kk | Manufacture of structural shape for building and device therefor |
| JP2000045387A (en) * | 1998-07-28 | 2000-02-15 | Fujita Corp | Connecting structure of concrete filling type steel-pipe column and flat slab and concrete filling type steel-pipe column |
| JP2000212954A (en) * | 1999-01-20 | 2000-08-02 | Giken Seisakusho Co Ltd | H-shaped steel |
| JP2011117135A (en) * | 2009-12-01 | 2011-06-16 | Mitsubishi Heavy Ind Ltd | Support reinforcing structure of long-sized body |
| TW201344018A (en) * | 2012-04-27 | 2013-11-01 | You-Feng Li | Reinforced fiber reinforced plastic (FRP) component |
| JP2014084605A (en) * | 2012-10-23 | 2014-05-12 | Jfe Steel Corp | Rolled h-shaped steel |
-
2022
- 2022-02-28 CN CN202210184783.8A patent/CN114453450A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5612436A (en) * | 1979-07-13 | 1981-02-06 | Nitsusen Kagaku Kogyo Kk | Protecting method of underwater h-steel pile and protection cover thereof |
| JPH0558705U (en) * | 1992-01-24 | 1993-08-03 | 戸田建設株式会社 | Steel brace |
| JPH08338103A (en) * | 1995-06-12 | 1996-12-24 | Nippon Steel Corp | Structure material for construction |
| JPH10225718A (en) * | 1997-02-13 | 1998-08-25 | Sumikin Kozai Kogyo Kk | Manufacture of structural shape for building and device therefor |
| JP2000045387A (en) * | 1998-07-28 | 2000-02-15 | Fujita Corp | Connecting structure of concrete filling type steel-pipe column and flat slab and concrete filling type steel-pipe column |
| JP2000212954A (en) * | 1999-01-20 | 2000-08-02 | Giken Seisakusho Co Ltd | H-shaped steel |
| JP2011117135A (en) * | 2009-12-01 | 2011-06-16 | Mitsubishi Heavy Ind Ltd | Support reinforcing structure of long-sized body |
| TW201344018A (en) * | 2012-04-27 | 2013-11-01 | You-Feng Li | Reinforced fiber reinforced plastic (FRP) component |
| JP2014084605A (en) * | 2012-10-23 | 2014-05-12 | Jfe Steel Corp | Rolled h-shaped steel |
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Application publication date: 20220510 |