CN206769116U - A kind of lightgage steel joist - Google Patents
A kind of lightgage steel joist Download PDFInfo
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- CN206769116U CN206769116U CN201720375208.0U CN201720375208U CN206769116U CN 206769116 U CN206769116 U CN 206769116U CN 201720375208 U CN201720375208 U CN 201720375208U CN 206769116 U CN206769116 U CN 206769116U
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- steel joist
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- lightgage steel
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Abstract
The utility model provides a kind of lightgage steel joist, including has a pair of trough rim A and bottom surface A with opening direction opposite the first notch and the second notch, first notch, and there is second notch a pair of trough rim B and bottom surface B, the bottom surface A to be connected with the trough rim B.Using the technical solution of the utility model, because the opening direction of the first notch and the second notch is opposite, so as to reduce lightgage steel joist cross-sectional area, enhance the tensile strength of lightgage steel joist, and 2/3rds of depth of the trough rim B of the second notch width less than the first notch trough rim A, enhance the process industrial art performance of lightgage steel joist, it is more suitable for meeting the needs produced in enormous quantities, in addition, the medial surface that the utility model is additionally provided in the trough rim B of the second notch is provided with some projections to being arranged symmetrically along its notch central axis, the technical scheme of muscle portion is folded in the trough rim A of the first notch end set, further increase the intensity of lightgage steel joist.
Description
Technical field
It the utility model is related to a kind of lightgage steel joist.
Background technology
At present, the structure of all kinds of buildings in, which has, turns mixed set, timber structure, reinforced concrete structure and steel knot
The forms such as structure.This several architecture structure form respectively has advantage and disadvantage, such as turns mixed structure, needs during construction etc. to turn wall to be built with fragment of brick
Metope is smeared using concrete well and then in wall both sides, turn mixed structure construction technique is more complicated, and efficiency of construction is relatively low,
The construction material used required for simultaneously has cement, sand, stone, timber, metal and plastics etc., and construction cost is higher, turns mixed structure
Construction wall sound insulation and effect of heat insulation are poor, can not meet the functional requirement of residential housing in some occasions；Lightgage steel joist
It is a kind of new construction material, there is in light weight, intensity, adapt to waterproof, shockproof, dust-proof, sound insulation, sound-absorbing, constant temperature and other effects,
Also there is the advantages that construction period is short, easy construction simultaneously, high-quality continuous hot galvanizing strip is typically used as raw material, through cold
Bending process rolling forms, and light room is applied to ice coffin, terminal, passenger station, station, arenas, market, factory, office building, Old building
The places such as transformation, interior decoration setting.Current lightgage steel joist is according to its form of fracture mainly has U-shaped, c-type, T-shaped, L-type is imperial
Bone, with the raising of people's material life, the limitation of lightgage steel joist current version is more and more obvious, light steel dragon existing at present
The model of bone can not meet the needs of design and to sound insulation, insulation, bearing strength, the requirements at the higher level of fire protecting performance.It is existing
In technology, the patent document of Publication No. " CN201809941U ", disclose it is a kind of can be used for build, decorations field it is light
Steel joist, for building, decorations field.Vat is identical with the channel opening direction of sulculus, and vat has the first trough rim and second
Trough rim and top plate；The middle body of top plate is sulculus, and the 3rd trough rim of sulculus and the 4th trough rim are connected with top plate.But the reality
With the lightgage steel joist of new offer in use there is the defects of intensity deficiency, due to the opening of the first notch and the second notch
Direction is identical, expands the cross-sectional area of lightgage steel joist, adds the toughness of lightgage steel joist, thus is using the lightgage steel joist
The middle situation for intensity deficiency occur, in addition, the manufacturing process for the notch of lightgage steel joist second that the utility model provides is more difficult,
Existing process technology can not meet the needs produced in enormous quantities, also therefore reduce the use range of the utility model.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of lightgage steel joist.
The utility model is achieved by the following technical programs.
The utility model provides a kind of lightgage steel joist, main to include with opening direction opposite the first notch and the second groove
Mouthful, first notch has a pair of trough rim A and bottom surface A, and second notch has a pair of trough rim B and bottom surface B, the bottom surface
A is connected with the trough rim B.
The central axis of second notch along its length and the central axis weight of first notch along its length
Close.
The end face of the trough rim A is provided with door leaf portion A.
2/3rds of depth of the width of the trough rim B less than trough rim A.
The end of the trough rim A is provided with folded muscle portion.
The medial surface of the trough rim B is provided with some projections to being arranged symmetrically along its notch central axis.
The raised height is less than 2.5 millimeters.
The lightgage steel joist is made of hot-dip galvanizing sheet steel or steel band.
The beneficial effects of the utility model are：The utility model provides a kind of lightgage steel joist, main to include having
Opening direction opposite the first notch and the second notch, first notch have a pair of trough rim A and bottom surface A, second groove
Mouthful there is a pair of trough rim B and bottom surface B, the bottom surface A to be connected with the trough rim B, using the technical solution of the utility model, due to
The opening direction of first notch and the second notch enhances lightgage steel joist on the contrary, so as to reduce lightgage steel joist cross-sectional area
Tensile strength, and 2/3rds of depth of the trough rim B of the second notch width less than the first notch trough rim A, enhance light steel
The process industrial art performance of keel, existing process equipment and technology are entirely capable of meeting the need for producing the lightgage steel joist in enormous quantities
Will, in addition, the utility model be additionally provided in the trough rim B of the second notch medial surface be provided with it is some to along its notch central axis pair
Claim arrangement projection, the first notch trough rim A end set fold muscle portion technical scheme, further increase lightgage steel joist
Intensity.
Brief description of the drawings
Fig. 1 is front view of the present utility model；
Fig. 2 is top view of the present utility model.
In figure：1- trough rims A, 2- bottom surface A, 3- trough rims B, 4- bottom surface B, 5- door leafs portion A, 6- fold muscle portion, and 7- is raised.
Embodiment
The technical solution of the utility model is described further below, but claimed scope is not limited to.
As shown in Figure 1 and Figure 2, the utility model provides a kind of lightgage steel joist, including with the first opposite groove of opening direction
Mouth and the second notch, the first notch have a pair of trough rim A1 and bottom surface A2, and the second notch has a pair of trough rim B3 and bottom surface B4, bottom
Face A2 is connected with trough rim B3.Using the technical solution of the utility model, due to the opening direction phase of the first notch and the second notch
Instead, so as to reduce lightgage steel joist cross-sectional area, and it is decided by the shape of its cross section for Sheet Metal Part, its tensile strength
And the quantity of bending edges, in general, to a bending edges of sheet metal component, the later tensile strength of its bending is compared to before bending
4 times or so can be increased, using the technical solution of the utility model, the bending edges of the lightgage steel joist totally 6, therefore greatly strengthen light
The tensile strength of steel joist.
Central axis of the central axis of second notch along its length with the first notch along its length overlaps.
Trough rim A1 end face is provided with door leaf portion A5.Using the technical scheme, the strong of lightgage steel joist is on the one hand further increased
Degree, the use range of the lightgage steel joist is also increased on the other hand, can be any kind of light with other after door leaf portion A5 drillings
Steel joist is attached, and it is fastened using fasteners such as bolt, rivets, expands the use range of the lightgage steel joist.
2/3rds of depth of the trough rim B3 width less than trough rim A1.When the trough rim B of the second notch width is less than the
One notch trough rim A depth 2/3rds when, enhance the process industrial art performance of lightgage steel joist, existing process equipment and technique
Technology is entirely capable of meeting the needs for producing the lightgage steel joist in enormous quantities.
Trough rim A1 end is provided with folded muscle portion 6.The technical scheme of muscle portion is folded in the trough rim A of the first notch end set,
A bending edges are added due on the matrix of lightgage steel joist more, further increase the intensity of lightgage steel joist
Trough rim B3 medial surface is provided with some projections 7 to being arranged symmetrically along its notch central axis.Using the technical side
Case, some projections to being arranged symmetrically along its notch central axis are provided with the trough rim B of the second notch medial surface, are on the one hand entered
One step improves the intensity of lightgage steel joist, also increases the use range of the lightgage steel joist on the other hand, and the second notch can be with
The lightgage steel joist of any other type is attached, during connection, it is only necessary to lightgage steel joist is caught in the second notch, made corresponding
It is raised by lightgage steel joist compress can, installation is very convenient.
The height of projection 7 is less than 2.5 millimeters.Raised height also has necessarily to the bonding strength of lightgage steel joist connector
Influence, height of projection is too high, then lightgage steel joist can be caused situation about can not be caught in occur, preferably convex in order to avoid such case
The height risen is less than 2.5 millimeters.
Lightgage steel joist is made of hot-dip galvanizing sheet steel or steel band.Hot-dip galvanizing sheet steel can make connector improve antirust ability, extend
The service life of connector, in general the thickness of connector be generally less than 1.5 millimeters.
Claims (8)
- A kind of 1. lightgage steel joist, it is characterised in that：Including with opening direction opposite the first notch and the second notch, described the One notch has a pair of trough rim A (1) and bottom surface A (2), and second notch has a pair of trough rim B (3) and bottom surface B (4), described Bottom surface A (2) is connected with the trough rim B (3).
- 2. lightgage steel joist as claimed in claim 1, it is characterised in that：The central axis of second notch along its length with The central axis of first notch along its length overlaps.
- 3. lightgage steel joist as claimed in claim 1, it is characterised in that：The end face of the trough rim A (1) is provided with door leaf portion A (5).
- 4. lightgage steel joist as claimed in claim 1, it is characterised in that：The width of the trough rim B (3) is less than trough rim A (1) depth 2/3rds of degree.
- 5. lightgage steel joist as claimed in claim 1, it is characterised in that：The end of the trough rim A (1) is provided with folded muscle portion (6).
- 6. lightgage steel joist as claimed in claim 1, it is characterised in that：The medial surface of the trough rim B (3) be provided with it is some to along its The projection (7) that notch central axis is arranged symmetrically.
- 7. lightgage steel joist as claimed in claim 6, it is characterised in that：The height of the projection (7) is less than 2.5 millimeters.
- 8. lightgage steel joist as claimed in claim 1, it is characterised in that：The lightgage steel joist is hot-dip galvanizing sheet steel or steel band system Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720375208.0U CN206769116U (en) | 2017-04-11 | 2017-04-11 | A kind of lightgage steel joist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720375208.0U CN206769116U (en) | 2017-04-11 | 2017-04-11 | A kind of lightgage steel joist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206769116U true CN206769116U (en) | 2017-12-19 |
Family
ID=60630051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720375208.0U Active CN206769116U (en) | 2017-04-11 | 2017-04-11 | A kind of lightgage steel joist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206769116U (en) |
-
2017
- 2017-04-11 CN CN201720375208.0U patent/CN206769116U/en active Active
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