CN211922974U - Cold-formed thin-walled steel combined frame - Google Patents

Cold-formed thin-walled steel combined frame Download PDF

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Publication number
CN211922974U
CN211922974U CN202020144338.5U CN202020144338U CN211922974U CN 211922974 U CN211922974 U CN 211922974U CN 202020144338 U CN202020144338 U CN 202020144338U CN 211922974 U CN211922974 U CN 211922974U
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China
Prior art keywords
steel
cold
walled
frame
thin
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Expired - Fee Related
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CN202020144338.5U
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Chinese (zh)
Inventor
王凯
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Tianhua Architecture Design Co ltd
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Tianhua Architecture Design Co ltd
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Abstract

The utility model provides a thin-walled cold-formed steel composite frame, including two piece at least girder steels and two piece at least steel columns, the girder steel with the steel column is ranks and distributes in order to inject at least one rectangular frame, be provided with the down tube on rectangular frame's the diagonal line, the both ends of down tube are fixed on rectangular frame's the apex angle. The diagonal rods are arranged on the diagonal lines of the rectangular frame, so that the diagonal rods, the steel beam and the steel column form a triangle, the buckling deformation of the steel column under vertical load can be effectively reduced by utilizing the stability principle of the triangle, the bearing capacity and the side-resisting rigidity of the cold-formed thin-wall steel combined frame are improved, and the problems that the side-resisting capacity is weak and the transverse impact force is easy to deform when the traditional frame structure is supported by only the steel beam and the steel column are solved.

Description

Cold-formed thin-walled steel combined frame
Technical Field
The utility model relates to a building structure technical field especially relates to a thin-walled cold-formed steel composite frame.
Background
The cold-formed thin-wall section steel combined frame is a frame structure which adopts cold-formed thin-wall section steel as longitudinal and transverse main bearing members of a building structure, has the characteristics of short construction period, light dead weight, energy conservation, environmental protection, strong comprehensive performance and the like, and is widely applied to the field of buildings. However, the cold-formed thin-walled steel has small lateral force resistance and low bearing capacity, so that the use of the cold-formed thin-walled steel combined frame in medium and high-rise buildings is limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a thin-walled cold-formed steel sectional frame can improve the bearing capacity and the anti side rigidity of thin-walled cold-formed steel, has solved traditional thin-walled cold-formed steel sectional frame and has used the problem of limitation in well, high-rise building.
In order to achieve the above object, the utility model provides a thin-walled cold-formed steel combined frame, including two piece at least girder steels and two piece at least steel columns, the girder steel with the steel column is ranks and distributes in order to inject at least one rectangular frame, be provided with the down tube on rectangular frame's the diagonal line, the both ends of down tube are fixed on rectangular frame's the apex angle.
Optionally, the diagonal rod is cold-formed thin-walled C-shaped steel or cold-formed thin-walled U-shaped steel, and a notch of the diagonal rod is arranged obliquely downward.
Optionally, the number of the rectangular frames is multiple, the size of the rectangular frames is the same, and the inclined rods are parallel to each other.
Optionally, a steel plate is disposed on the front surface and/or the rear surface of the rectangular frame.
Optionally, the steel plate is triangular, three sides of the steel plate are parallel to the steel beam, the steel column and the diagonal rod, and two sides of the steel plate are in threaded connection with the steel beam and the steel column respectively.
Optionally, the number of the steel plates on one rectangular frame is two, the two steel plates are both arranged on the front surface of the rectangular frame, and the two steel plates are symmetrical about the diagonal rod.
Optionally, the outer fringe of thin-walled cold-formed steel sectional material combined frame is provided with a steel member, just the steel member with the steel column laminating.
Optionally, the bottom of the steel column is provided with an anti-pulling anchor bolt.
Optionally, the cold-formed thin-walled steel combined frame is formed by connecting a plurality of sub-steel beams and a plurality of sub-steel columns, and the lengths of each sub-steel beam and each sub-steel column are respectively equal to the length and the width of the rectangular frame.
Optionally, the steel beam and the steel column are cold-formed thin-walled steel, and the cold-formed thin-walled steel is cold-formed thin-walled C-shaped steel or cold-formed thin-walled U-shaped steel.
The utility model provides a pair of among thin-walled cold-formed steel composite frame, including two piece at least girder steels and two piece at least steel columns, the girder steel with the steel column is ranks and distributes in order to inject at least one rectangular frame, be provided with the down tube on rectangular frame's the diagonal line, the both ends of down tube are fixed on rectangular frame's the apex angle. The diagonal rods are arranged on the diagonal lines of the rectangular frame, so that the diagonal rods, the steel beam and the steel column form a triangle, the buckling deformation of the steel column under vertical load can be effectively reduced by utilizing the stability principle of the triangle, the bearing capacity and the side-resisting rigidity of the cold-formed thin-wall steel combined frame are improved, and the problems that the traditional frame structure is weak in side-resisting capacity and easy to deform due to transverse impact force when only the steel beam and the steel column are used for supporting are solved.
Drawings
Fig. 1 is a schematic structural diagram of a thin-walled cold-formed steel composite frame provided in an embodiment of the present invention;
fig. 2 is a perspective view of a rectangular frame according to an embodiment of the present invention;
fig. 3 is a front view of a rectangular frame according to an embodiment of the present invention;
wherein the reference numerals are:
10-a steel beam; 20-steel column; 30-a diagonal rod; 40-steel plate; 50-resistance to plucking anchor.
Detailed Description
The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As shown in fig. 1 to 3, the present embodiment provides a thin-walled cold-formed steel composite frame, which includes at least two steel beams 10 and at least two steel columns 20, where the steel beams 10 and the steel columns 20 are distributed in rows and columns to define at least one rectangular frame, diagonal lines of the rectangular frame are provided with diagonal rods 30, and two ends of the diagonal rods 30 are fixed on top corners of the rectangular frame.
Specifically, the steel beam 10 may be a cold-formed thin-walled steel, or may be a hot-rolled steel, such as an H-beam, an i-beam, etc., which is not limited in this application. Under the same cross section area, the turning radius of the cold-formed thin-walled steel member is increased by 50% -60% compared with that of hot-rolled section steel, the section inertia moment is increased by 1.5-4 times, the mechanical property is better, and the rigidity of the whole structure is improved, so that the cold-formed thin-walled steel is preferentially adopted in the application. The thin-walled cold-formed steel is, for example, U-shaped steel or C-shaped steel, and the application is not limited thereto. In this embodiment, the steel beam 10 is C-shaped steel cold-formed thin-walled steel. In this embodiment, the notches of the other steel beams 10 are downward, except that the notch of one steel beam at the bottommost portion of the thin-walled cold-formed steel combined frame is upward.
Similarly, the steel column 20 may be a cold-formed thin-walled steel section or a hot-rolled steel section, which is not limited in this application. In this embodiment, in order to ensure the uniformity of assembly and the balance of the combined frame of the thin-walled cold-formed steel, the steel column 20 is also made of C-shaped steel. The steel column 20 and the steel beam 10 can be connected by self-tapping screws, so that the cold-formed thin-wall section steel combined frame is changed into a truss structure, and the overall impact resistance of the cold-formed thin-wall section steel combined frame is improved. And, the mode through self tapping screw is convenient for the installation and the connection of whole structure, also is convenient for the change of girder steel or steel column. Specifically, as shown in fig. 2, each of the steel beam 10 and the steel column 20 is composed of a web and two flange plates, and a distance between the two flange plates of the steel beam 10 is slightly larger than a distance between the two flange plates of the steel column 20 so that the steel beam 10 receives an end of the steel column 20.
With reference to fig. 1 and 2, the inclined rod 30 is disposed on a diagonal line of the rectangular frame, so that the inclined rod 30, the steel beam 10 and the steel column 20 form a triangle, the buckling deformation of the steel column 20 under a vertical load is effectively reduced by using a stability principle of the triangle, the bearing capacity and the lateral rigidity of the cold-formed thin-walled steel combined frame are improved, and the problems that the traditional frame structure is weak in lateral resistance and easy to deform due to a transverse impact force when only the steel beam and the steel column are used for forming the frame structure are solved.
Specifically, the diagonal rod 30 is a C-shaped cold-formed thin-walled steel. The down tube 30 includes web and two flange plates that are parallel to each other, two are connected respectively at the both ends of web the lateral wall of flange plate so that the web reaches the flange plate constitutes C type or U type, just the equal oblique downward setting of notch of down tube 30 is so that improve the anti bending property of cold-formed thin-walled steel composite frame, prevents down tube 30 buckling deformation.
Referring to fig. 2, the end of the inclined rod 30 is detachably connected to the steel beam 10 or the steel column 20, and the detachable connection is a threaded connection. Specifically, the flange plates of the sway rod 30 can be connected with the steel beam 10 or the steel column 20 by self-tapping screws; or, a plurality of threaded holes are formed in the end portion of the flange plate of the sway rod 30, and threads with the same size are also formed in the positions of the steel beam 10 or the steel column 20 corresponding to the threaded holes, and then the sway rod 30 is connected with the steel beam 10 or the steel column 20 through a connecting member such as a bolt. Because the inclined rod 30 is detachably connected with the steel beam 10 or the steel column 20, the feasibility of field construction is improved, the difficulty of field construction is reduced, and the construction efficiency is improved. In this embodiment, the distance between the flange plates of the inclined rods 30 is slightly smaller than the distance between the flange plates of the steel columns 20, the upper ends of the inclined rods 30 are in threaded connection with the steel columns 20, and the lower ends of the inclined rods 30 are in threaded connection with the steel beams 10.
Referring to fig. 1, the number of the rectangular frames is the same, and the inclined bars 30 are parallel to each other. Because the cold-formed thin-walled steel combined frame is easy to be subjected to oblique shearing force and generate buckling deformation, and the oblique shearing force is consistent with the direction of the oblique rods 30, the oblique rods 30 are parallel to each other so as to improve the lateral rigidity resistance and the shearing force resistance of the cold-formed thin-walled steel combined frame. Of course, the inclined bars 30 may not be parallel, which is not limited in the present application. In this embodiment, the thin-walled cold-formed steel combined frame is formed by connecting a plurality of sub-steel beams and a plurality of sub-steel columns, and the lengths of each sub-steel beam and each sub-steel column are respectively equal to the length and the width of the rectangular frame.
Referring to fig. 3 in conjunction with fig. 1, a steel plate 40 is disposed on a front surface and/or a rear surface of the rectangular frame. The steel plate is arranged to generate a skin effect on the cold-formed thin-wall section steel combined frame, so that a part of external load is shared by the steel connecting beam 10 and the steel column 20, the stress condition of the cold-formed thin-wall section steel combined frame is improved, and the shear strength and the lateral stiffness of the cold-formed thin-wall section steel combined frame are improved. It is noted that the front surface as referred to herein is the major surface of the structure shown in fig. 3, and the back surface is the back surface of the structure shown in fig. 3.
Optionally, the steel plate 40 is a triangle, three sides of the triangle are respectively parallel to the steel beam 10, the steel column 20 and the inclined rod 30, and two sides of the steel plate are respectively in threaded connection with the steel beam and the steel column. In this embodiment, the steel plate 40 is connected to the steel beam 10 and the steel column 20 by self-tapping screws, so as to provide good lateral constraint and torsional constraint for the rectangular frame, and further enhance the stability of the rectangular frame. Of course, the steel plate 40 may have other shapes, such as a rectangular shape, or other shapes, which is not limited in this application. The steel plate 40 may also cover the entire surface of the rectangular frame to better improve the stability of the rectangular frame.
Referring to fig. 3, the number of the steel plates 40 on one rectangular frame is two, the two steel plates 40 are both disposed on the front surface of the rectangular frame, and the two steel plates 40 are symmetrical with respect to the diagonal member 30. The mechanical property of the cold-formed thin-walled steel combined frame is effectively improved through the two steel plates 40 which are symmetrically arranged, the material of the steel plates 40 can be saved, and the production cost is reduced.
Optionally, the outward flange of thin-walled cold-formed steel combined frame is provided with a steel member, just the steel member with the laminating of steel column 20 to reinforcing thin-walled cold-formed steel combined frame limit stand buckling deformation's ability has been solved traditional thin-walled cold-formed steel combined frame limit stand and has easily taken place the problem of buckling deformation, has promoted the stability of structure. The side columns are two steel columns 20 at two side edges of the cold-formed thin-walled steel composite frame in fig. 1. In this embodiment, a piece of C-shaped cold-formed thin-walled steel is arranged on the outer side of the side column of the cold-formed thin-walled steel composite frame, or it may be understood that the side column is composed of two pieces of C-shaped cold-formed thin-walled steel, and the two pieces of C-shaped cold-formed thin-walled steel may be connected by a self-tapping thread or may be welded, which is not limited in this application.
Referring to fig. 1 and 2, the bottom of the steel column 20 is provided with an anti-pulling anchor bolt 50. Through setting up the resistance to plucking crab-bolt not only be favorable to increasing the anti lateral stiffness of structure, can also be convenient for fix a position steel column 20 simultaneously. During the specific operation, each steel column 20 at the bottom of the thin-walled cold-formed steel combined frame is provided with a through hole, and then an anti-pulling anchor bolt 50 is pre-embedded in a corresponding foundation, so that the anti-pulling anchor bolt 50 penetrates through the through holes and is screwed down through bolts.
To sum up, the embodiment of the utility model provides a thin-walled cold-formed steel combined frame, including two piece at least girder steels and two piece at least steel columns, the girder steel with the steel column is ranks and distributes in order to inject at least one rectangular frame, be provided with the down tube on rectangular frame's the diagonal line, the both ends of down tube are fixed on rectangular frame's the apex angle. The diagonal rods are arranged on the diagonal lines of the rectangular frame, so that the diagonal rods, the steel beam and the steel column form a triangle, the buckling deformation of the steel column under vertical load can be effectively reduced by utilizing the stability principle of the triangle, the bearing capacity and the side-resisting rigidity of the cold-formed thin-wall steel combined frame are improved, and the problems that the traditional frame structure is weak in side-resisting capacity and easy to deform due to transverse impact force when only the steel beam and the steel column are used for supporting are solved.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims (10)

1. The cold-formed thin-wall section steel combined frame is characterized by comprising at least two steel beams and at least two steel columns, wherein the steel beams and the steel columns are distributed in rows and columns to limit at least one rectangular frame, diagonal rods are arranged on diagonal lines of the rectangular frame, and two ends of each diagonal rod are fixed on the top corners of the rectangular frame.
2. The combined frame of thin-walled cold-formed steel as claimed in claim 1, wherein the diagonal members are thin-walled cold-formed C-section steel or thin-walled cold-formed U-section steel, and the notches of the diagonal members are disposed diagonally downward.
3. A combined frame of cold-formed thin-walled steel sections as claimed in claim 1 or 2, wherein the number of said rectangular frames is plural, the size of said plurality of rectangular frames is the same, and said diagonal bars are parallel to each other.
4. A combined frame of cold-formed thin-walled steel sections according to claim 1, wherein the rectangular frame is provided with steel plates on the front and/or rear surface thereof.
5. The assembled frame of cold-formed thin-walled steel sections as claimed in claim 4, wherein the steel plate is triangular, three sides of the steel plate are parallel to the steel beam, the steel columns and the diagonal rods, and two sides of the steel plate are threaded with the steel beam and the steel columns.
6. The assembled frame of cold-formed thin-walled steel sections according to claim 5, wherein the number of said steel plates on one of said rectangular frames is two, and both of said steel plates are provided on the front surface of said rectangular frame, and said two steel plates are symmetrical with respect to said diagonal members.
7. The thin-walled cold-formed steel composite frame of claim 1, wherein a steel member is provided on the outer edge of the thin-walled cold-formed steel composite frame, and the steel member is attached to the steel column.
8. The assembled framework of cold-formed thin-walled steel sections as claimed in claim 1, wherein the bottom of the steel columns are provided with anti-pulling anchors.
9. The combined frame of cold-formed thin-walled steel as claimed in claim 1, wherein the combined frame of cold-formed thin-walled steel is formed by connecting a plurality of sub-steel beams and a plurality of sub-steel columns, and the length of each sub-steel beam and each sub-steel column is equal to the length and width of the rectangular frame.
10. The composite framework of claim 1, wherein the steel beams and the steel columns are cold-formed thin-walled steel sections, and the cold-formed thin-walled steel sections are cold-formed thin-walled C-shaped steel sections or cold-formed thin-walled U-shaped steel sections.
CN202020144338.5U 2020-01-21 2020-01-21 Cold-formed thin-walled steel combined frame Expired - Fee Related CN211922974U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020144338.5U CN211922974U (en) 2020-01-21 2020-01-21 Cold-formed thin-walled steel combined frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020144338.5U CN211922974U (en) 2020-01-21 2020-01-21 Cold-formed thin-walled steel combined frame

Publications (1)

Publication Number Publication Date
CN211922974U true CN211922974U (en) 2020-11-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020144338.5U Expired - Fee Related CN211922974U (en) 2020-01-21 2020-01-21 Cold-formed thin-walled steel combined frame

Country Status (1)

Country Link
CN (1) CN211922974U (en)

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