Special-shaped C-shaped steel connecting node

Abstract

The invention discloses a special-shaped C-shaped steel connecting joint and belongs to the technical field of building steel structures. The C-shaped steel is provided with the small bending part and the large bending part, the web plate, namely the middle supporting part, is arranged between the small bending part and the large bending part, and the middle supporting part is used for supporting between the small bending part and the large bending part when being pressed, so that the condition of torsion is avoided; when the bearing capacity is large, the C-shaped steel is mutually buckled to form a whole, and the strength is further improved; the base connecting holes, the C-shaped steel connecting holes, the connecting plate connecting holes and the supporting plate connecting holes which can be aligned with one another are formed in the base, the supporting plate, the connecting plate and the C-shaped steel, during installation, the connecting holes in one-to-one correspondence can facilitate connection of bolt sets, and installation is convenient; a plurality of C-shaped steel connecting holes and threading holes are formed in the middle of the C-shaped steel, the threading holes can be used for transverse pipelines to penetrate through, pipe frames can be installed on the C-shaped steel connecting holes, the pipelines can be conveniently installed, and therefore the installation position is lifted, and loss of floor height is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of building steel structures, and in particular relates to a special-shaped C-shaped steel connection node. Background Art

[0002] Steel structure is a structure made of steel materials and is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates, and adopts rust removal and rust prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. The components or parts are usually connected by welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in large factories, stadiums, super high-rise buildings and other fields. Fire-fighting pipes refer to pipes used in fire-fighting to connect fire-fighting equipment and instruments and to transport fire-fighting water, gas or other media.

[0003] In existing steel structures, connection nodes are opened at fixed positions on the surface. The connection nodes are usually threaded holes, which are convenient for bolting two sets of steel structures. However, the two sets of steel structures need to be aligned, and are not suitable for steel structures of other sizes. In addition, the installation steps are cumbersome and time-consuming. In addition, since the ribs of traditional C-shaped steel are on one side, when the span is large, the C-shaped steel will twist under pressure, thereby affecting the structural stiffness. At the same time, the traditional C-shaped steel does not have a position for equipment such as fire pipe racks, and the remaining installed equipment needs to be hung at the bottom of the C-shaped steel, which will reduce the overall height of the steel structure. Summary of the invention

[0004] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides a special-shaped C-shaped steel connection node.

[0005] The above technical problems of the present invention are mainly solved by the following technical solutions: a special-shaped C-shaped steel connection node, including a base, two support plates, two connecting plates and four C-shaped steels, two of the C-shaped steels are reversely interlocked with each other to form an integral main beam, two of the support plates are connected to the left and right sides of the end of the main beam, and are fixedly connected to the base through the two support plates, and the remaining two of the C-shaped steels are arranged on both sides of the end of the main beam, and are connected to the main beam through the connecting plates, and a base connecting hole is provided on the base.

[0006] Preferably, the C-shaped steel is a special-shaped C-shaped steel, including a small bending part, a large bending part and an intermediate support part, wherein the small bending part is arranged at the top of the intermediate support part, and the large bending part is arranged at the bottom of the intermediate support part, and a plurality of groups of C-shaped steel connection holes and threading holes are evenly spaced on the intermediate support part. When the C-shaped steels are buckled together to form a main beam, the connection holes and threading holes in the two C-shaped steels are aligned one by one.

[0007] Preferably, the intermediate support portion is arranged in the middle position between the small bending portion and the large bending portion, and the small bending portion and the large bending portion both include a bending plane. When the two C-shaped steels in the main beam are interlocked with each other, the large bending portion covers the small bending portion of the other C-shaped steel.

[0008] Preferably, the connecting plate is T-shaped, including a longitudinal plate and a transverse plate, and both the longitudinal plate and the transverse plate are provided with connecting plate connecting holes that cooperate with the C-shaped steel connecting holes. The connecting plate connecting holes on the transverse plate are aligned with the C-shaped steel connecting holes on the C-shaped steel in the main beam, and the connecting plate connecting holes on the longitudinal plate are aligned with the C-shaped steel connecting holes in the C-shaped steel on both sides of the main beam.

[0009] Preferably, the support plate includes a vertical plate and a horizontal plate, both of which are provided with support plate connecting holes, the support plate connecting holes on the vertical plate are aligned with the C-shaped steel connecting holes on the C-shaped steel in the main beam, and the support plate connecting holes on the horizontal plate are aligned with the base connecting holes on the base.

[0010] Preferably, the base connection holes, C-shaped steel connection holes, connection plate connection holes and support plate connection holes are fastened and connected to each other through bolt groups.

[0011] Preferably, the support plate is pre-connected with the end of the main beam, and the remaining two C-shaped steels are connected to the C-shaped steel connecting holes in the main beam inside the support plate through connecting plates.

[0012] Preferably, the C-shaped steels on both sides of the main beam can be directly connected to the main beam together with the support plates through connecting plates.

[0013] Preferably, the main beam is erected above the base via two support plates, and the bottom of the main beam is lifted off the surface of the base.

[0014] The present invention has the following beneficial effects: by arranging a small bend and a large bend in the C-shaped steel, and arranging the traditional web, i.e., the middle support part, in the middle position between the small bend and the large bend, the middle support part of this structure can support in the middle position between the small bend and the large bend when under pressure, which can effectively avoid the overall twisting; in the position with larger load-bearing capacity, the C-shaped steels can be interlocked with each other to form a whole, so as to further increase the strength; by providing base connecting holes, C-shaped steel connecting holes, connecting plate connecting holes and supporting plate connecting holes that can be matched and aligned with each other on the base, support plate, connecting plate and C-shaped steel, during installation, the connecting holes that can correspond to each other one by one can facilitate the connection of the bolt group, which is convenient for installation; by arranging a plurality of C-shaped steel connecting holes and threading holes in the middle position of the C-shaped steel, the threading holes can be used to thread horizontal pipelines, and pipe racks can be installed on the C-shaped steel connecting holes, which is convenient for installing pipelines, thereby improving the installation position and avoiding loss of floor height. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the C-shaped steel of the present invention;

[0017] Figure 3 It is a structural schematic diagram of the base of the present invention.

[0018] In the figure: 1. base; 2. support plate; 3. connecting plate; 4. C-shaped steel; 5. main beam; 6. base connecting hole; 7. small bending part; 8. large bending part; 9. middle supporting part; 10. C-shaped steel connecting hole; 11. threading hole; 12. bending plane; 13. longitudinal plate; 14. transverse plate; 15. connecting plate connecting hole; 16. vertical plate; 17. horizontal plate; 18. supporting plate connecting hole. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0020] Embodiment: A special-shaped C-shaped steel connection node, such as Figure 1-Figure 3 As shown, it includes a base 1, two support plates 2, two connecting plates 3 and four C-shaped steels 4. Two of the C-shaped steels 4 are reversely interlocked with each other to form an integral main beam 5. The two support plates 2 are connected to the left and right sides of the end of the main beam 5, and are fixedly connected to the base 1 through the two support plates 2. The remaining two C-shaped steels 4 are arranged on both sides of the end of the main beam 5, and are connected to the main beam 5 through the connecting plates 3. The base 1 is provided with a base 1 connecting hole.

[0021] The C-shaped steel 4 is a special-shaped C-shaped steel 4, including a small bending portion 7, a large bending portion 8 and an intermediate support portion 9. The small bending portion 7 is arranged at the top of the intermediate support portion 9, and the large bending portion 8 is arranged at the bottom of the intermediate support portion 9. The intermediate support portion 9 is provided with multiple groups of C-shaped steel connection holes 10 and threading holes 11 at equal intervals. When the C-shaped steels 4 are buckled together to form the main beam 5, the connection holes and threading holes 11 in the two C-shaped steels 4 are aligned one by one.

[0022] The middle support portion 9 is arranged in the middle position between the small bending portion 7 and the large bending portion 8. The small bending portion 7 and the large bending portion 8 both include a bending plane 12. When the two C-shaped steels 4 in the main beam 5 are interlocked with each other, the large bending portion 8 covers the small bending portion 7 of the other C-shaped steel 4.

[0023] The connecting plate 3 is T-shaped, including a longitudinal plate 13 and a transverse plate 14. The longitudinal plate 13 and the transverse plate 14 are both provided with connecting plate connecting holes 15 that cooperate with the C-shaped steel connecting holes 10. The connecting plate connecting holes 15 on the transverse plate 14 are aligned with the C-shaped steel connecting holes 10 on the C-shaped steel 4 in the main beam 5. The connecting plate connecting holes 15 on the longitudinal plate 13 are aligned with the C-shaped steel connecting holes 10 in the C-shaped steel 4 on both sides of the main beam 5.

[0024] The support plate 2 includes a vertical plate 16 and a horizontal plate 17, and support plate connecting holes 18 are opened on the vertical plate 16 and the horizontal plate 17. The support plate connecting holes 18 on the vertical plate are aligned with the C-shaped steel connecting holes 10 on the C-shaped steel 4 in the main beam 5, and the support plate connecting holes 18 on the horizontal plate 17 are aligned with the base 1 connecting holes on the base 1.

[0025] The connection holes of the base 1, the connection holes of the C-shaped steel 10, the connection holes of the connection plate 15 and the connection holes of the support plate 18 are corresponding to each other and are fastened and connected by bolt groups.

[0026] The support plate 2 is pre-connected with the end of the main beam 5 , and the remaining two C-shaped steels 4 are connected to the C-shaped steel connection holes 10 in the main beam 5 inside the support plate 2 through the connection plate 3 .

[0027] The C-shaped steels 4 on both sides of the main beam 5 can be directly connected to the main beam 5 together with the support plates 2 through the connecting plates 3.

[0028] The main beam 5 is erected above the base 1 through two support plates, and the bottom of the main beam 5 is lifted off the surface of the base 1 .

[0029] Principle of the present invention: When installing the node, the base 1 is fixed in advance, connected to the ground by pre-embedding or the like, and the two support plates 2 are connected to the base 1. The two C-shaped steels 4 that are interlocked with each other can be pre-fixed with a clamp or a bolt group, and inserted between the two support plates 2, and the C-shaped steel connection holes 10 are aligned with the support plate connection holes 18. There are multiple groups of support plate connection holes 18 on the vertical plate 16 in the support plate 2. Bolt groups are pre-installed between the support plate connection holes 18 at the edges of the two sides and the C-shaped steel connection holes 10 for fixing. The two connecting plates 3 are installed on the outside of the support plate 2, and the connecting plate connection holes 15 in the longitudinal plate 13 on the connecting plate 3 are aligned with the supporting plate connection holes 18 located in the middle position on the vertical plate 16 in the support plate 2, and connected by the bolt group, so as to complete the connection between the main beam 5, the base 1, the support plate 2 and the connecting plate 3, and then the remaining two C-shaped steels 4 are connected to the transverse plate 14 in the connecting plate 3 to complete the installation of the node;

[0030] The two connecting plates 3 can also be directly mounted on the main beam 5, and the connecting plates 3 are connected to the C-shaped steel connecting holes 10 on the inner side of the C-shaped steel 4 in the main beam 5 by bolt groups, thereby simplifying the structure of the node and distributing the load;

[0031] In a light structure, only one C-shaped steel 4 can be used to replace the main beam 5, thus reducing the use of steel.

[0032] By setting a small bend 7 and a large bend 8 on the C-shaped steel 4, and setting the traditional web and the middle support part 9 in the middle position between the small bend 7 and the large bend 8, the middle support part 9 can support the structure in the middle position between the small bend 7 and the large bend 8 when under pressure, which can effectively avoid the overall twisting; at a position with a larger load-bearing capacity, the C-shaped steels 4 can be buckled together to form a whole, so as to further increase the strength; by providing the base 1 connection holes, C-shaped steel connection holes 10, connection plate connection holes 15 and support plate connection holes 18 that can be aligned with each other on the base 1, the support plate 2, the connecting plate 3 and the C-shaped steel 4, when installing, the connection holes that can correspond to each other one by one can facilitate the connection of the bolt group, which is convenient for installation; by providing a plurality of C-shaped steel connection holes 10 and threading holes 11 in the middle position of the C-shaped steel 4, the threading holes 11 can be used to thread horizontal pipelines, and a pipe rack can be installed on the C-shaped steel connection holes 10, which is convenient for installing pipelines, thereby improving the installation position and avoiding loss of floor height.

[0033] Finally, it should be pointed out that the above embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be considered to belong to the protection scope of the present invention.

Claims

1. A special-shaped C-shaped steel connection node, comprising a base (1), two support plates (2), two connection plates (3) and four C-shaped steels (4), characterized in that: The two C-shaped steels (4) are interlocked with each other in reverse to form an integral main beam (5); the two support plates (2) are connected to the left and right sides of the end of the main beam (5) and are fixedly connected to the base (1) through the two support plates (2); the remaining two C-shaped steels (4) are arranged on both sides of the end of the main beam (5) and are connected to the main beam (5) through the connecting plate (3); and the base (1) is provided with a base (1) connecting hole.

2. The special-shaped C-shaped steel connection node according to claim 1, characterized in that: The C-shaped steel (4) is a special-shaped C-shaped steel (4), comprising a small bending portion (7), a large bending portion (8) and an intermediate support portion (9); the small bending portion (7) is arranged at the top of the intermediate support portion (9), the large bending portion (8) is arranged at the bottom of the intermediate support portion (9), and a plurality of groups of C-shaped steel connection holes (10) and threading holes (11) are equidistantly provided on the intermediate support portion (9); when the C-shaped steels (4) are interlocked to form a main beam (5), the connection holes and threading holes (11) in the two C-shaped steels (4) are aligned one by one.

3. A special-shaped C-shaped steel connection node according to claim 2, characterized in that: The intermediate support portion (9) is arranged at an intermediate position between the small bending portion (7) and the large bending portion (8); the small bending portion (7) and the large bending portion (8) both include a bending plane (12); and when two C-shaped steels (4) in the main beam (5) are interlocked, the large bending portion (8) covers the small bending portion (7) of another C-shaped steel (4).

4. The special-shaped C-shaped steel connection node according to claim 3, characterized in that: The connecting plate (3) is T-shaped and comprises a longitudinal plate (13) and a transverse plate (14). The longitudinal plate (13) and the transverse plate (14) are both provided with connecting plate connecting holes (15) that match the C-shaped steel connecting holes (10). The connecting plate connecting holes (15) on the transverse plate (14) are aligned with the C-shaped steel connecting holes (10) on the C-shaped steel (4) in the main beam (5). The connecting plate connecting holes (15) on the longitudinal plate (13) are aligned with the C-shaped steel connecting holes (10) in the C-shaped steel (4) on both sides of the main beam (5).

5. The special-shaped C-shaped steel connection node according to claim 4, characterized in that: The support plate (2) comprises a vertical plate (16) and a horizontal plate (17), and the vertical plate (16) and the horizontal plate (17) are both provided with support plate connection holes (18), the support plate connection holes (18) on the vertical plate are aligned with the C-shaped steel connection holes (10) on the C-shaped steel (4) in the main beam (5), and the support plate connection holes (18) on the horizontal plate (17) are aligned with the base (1) connection holes on the base (1).

6. The special-shaped C-shaped steel connection node according to claim 5, characterized in that: The base (1) connection hole, the C-shaped steel connection hole (10), the connection plate connection hole (15) and the support plate connection hole (18) are corresponding to each other and are fastened and connected by means of a bolt group.

7. The special-shaped C-shaped steel connection node according to claim 6, characterized in that: The support plate (2) is pre-connected to the end of the main beam (5), and the remaining two C-shaped steels (4) are connected to the C-shaped steel connection holes (10) in the main beam (5) inside the support plate (2) through the connection plate (3).

8. The special-shaped C-shaped steel connection node according to claim 7, characterized in that: The C-shaped steels (4) on both sides of the main beam (5) can be directly connected together with the support plates (2) through the connecting plates (3).

9. The special-shaped C-shaped steel connection node according to claim 8, characterized in that: The main beam (5) is erected above the base (1) via two support plates, and the bottom of the main beam (5) is lifted off the surface of the base (1).

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