Steel beam and concrete column combined frame connecting joint and building

Abstract

The utility model discloses a steel beam and concrete column combined frame connecting node and a building, and the steel beam and concrete column combined frame connecting node comprises a concrete column; the outer hoop ring plate covers the outer part of the concrete column; the profile steel short bracket is fixedly connected to the outer wall of the outer hoop ring plate and is used for being fixedly connected with a steel beam; the cross anchoring key is embedded into the concrete column, and the end of the cross anchoring key is fixedly connected with the inner wall of the outer hoop ring plate; and the #-shaped hoop plate is embedded into the concrete column wrapped by the outer hoop ring plate, the #-shaped hoop plate is arranged in a # shape, the end of the #-shaped hoop plate is fixedly connected with the inner wall of the outer hoop ring plate, and the steel beam and concrete column combined frame connecting joint is adopted for the building. The steel beam and concrete column combined frame connecting joint and the building have the advantages of being convenient to construct, high in structural strength, safe, reliable, good in economical efficiency and the like which are not achieved in the prior art.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a steel beam and concrete column combined frame connection node and a building. Background Art

[0002] This new composite frame system, comprised of reinforced concrete columns and steel beams, economically utilizes and leverages the respective characteristics of steel and concrete. Currently widely used in construction projects, it is particularly well-suited for use in large spaces, such as multi-story industrial plants and multi-story, open-top floor slabs, or in localized locations. It fully leverages the advantages of steel's flexural strength and concrete's compressive strength, stiffness, ductility, and functional suitability.

[0003] Replacing the steel columns in conventional steel frames with reinforced concrete columns is much more economical than steel columns for bearing large axial loads. It also increases the overall structural rigidity, reduces lateral displacement, and avoids on-site welding at beam-column joints. Replacing the concrete beams in conventional concrete frames with steel beams reduces the need for concrete formwork and scaffolding support for the floor slab, especially in areas requiring high formwork. It also allows for localized increases in beam spans to meet functional space requirements. Furthermore, steel beams can accelerate construction progress and reduce costs, while also reducing the floor slab's deadweight and thus mitigating seismic effects.

[0004] The beam-column joint structure, which involves complex stress transfer between the steel beam and the reinforced concrete column, is crucial for ensuring the safety of the system. Connecting the steel beam to the reinforced concrete column is challenging. Traditional steel plate embedded connections cannot meet the required stiffness and load-bearing capacity. While connecting the steel beam through the concrete column can ensure joint strength and stiffness, it is complex to construct on-site, and this complexity can lead to poor project economics.

[0005] In summary, the existing technology has the disadvantages of great construction difficulty, difficulty in ensuring node strength and stiffness, and poor economy. These disadvantages have seriously restricted the further development and promotion and application of this field.

[0006] Therefore, the purpose of this utility model is to provide a new technical solution to solve the existing technical problems. Utility Model Content

[0007] In order to overcome the deficiencies of the prior art, the utility model provides a steel beam and concrete column combined frame connection node and building, which solves the technical defects of the prior art such as high construction difficulty, difficulty in ensuring node strength and rigidity, and poor economy.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] A steel beam and concrete column composite frame connection node, comprising:

[0010] concrete columns;

[0011] an outer hoop plate, the outer hoop plate covering the outside of the concrete column;

[0012] A short steel corbel, the short steel corbel being fixedly connected to the outer wall of the outer hoop plate and used for being fixedly connected to the steel beam;

[0013] A cross anchor key, wherein the cross anchor key is embedded in the concrete column, and an end of the cross anchor key is fixedly connected to the inner wall of the outer hoop plate;

[0014] The well-shaped hoop plate is embedded in the concrete column covered by the outer hoop ring plate. The well-shaped hoop plate is arranged in a well shape and the end of the well-shaped hoop plate is fixedly connected to the inner wall of the outer hoop ring plate.

[0015] As a further improvement of the above technical solution, one end of the steel short corbel close to the outer hoop ring plate is welded to the outer wall of the outer hoop ring plate, and the steel short corbel includes a short corbel web and a short corbel wing plate.

[0016] As a further improvement of the above technical solution, the cross anchor key includes two anchor keys connected in a cross shape, the ends of the anchor keys are welded to the inner wall of the outer hoop plate, and the anchor key includes an anchor key web and an anchor key wing plate.

[0017] As a further improvement of the above technical solution, the anchoring key wing plate is designed with a variable cross-section, and the cross-sectional width of the anchoring key wing plate becomes smaller as it extends inward from the outer end thereof connected to the outer hoop ring plate.

[0018] As a further improvement of the above technical solution, the cross-sectional width of the anchoring key wing plate at the end position where it is connected to the outer hoop ring plate is 200 mm, and the cross-sectional width of the middle position inward from the end position of the anchoring key wing plate is 100 mm.

[0019] As a further improvement of the above technical solution, studs are provided on both sides of the anchor key web, and the studs are embedded in the concrete column.

[0020] As a further improvement of the above technical solution, there are multiple studs, and the multiple studs are evenly distributed in the length direction and height direction of the anchor key web, and the spacing between the studs is 200 mm.

[0021] As a further improvement of the above technical solution, the thickness of the outer hoop ring plate is 20 mm and not less than 0.7 times the thickness of the short corbel wing plate of the steel short corbel. The upper end of the outer hoop ring plate is flush with the floor, and the distance between the lower end of the outer hoop ring plate and the short corbel wing plate at the lower end of the steel short corbel exceeds 50 mm.

[0022] As a further improvement of the above technical solution, the cross-shaped hoop plate includes a vertically arranged transverse hoop plate and a longitudinal hoop plate, the transverse hoop plate and the longitudinal hoop plate are vertically connected to each other, and the ends of the transverse hoop plate and the longitudinal hoop plate are fixedly connected to the inner wall of the outer hoop ring plate.

[0023] As a further improvement of the above technical solution, the single-limb cross-section height of the transverse hoop plate and the longitudinal hoop plate is 100 mm, and the thickness of the transverse hoop plate and the longitudinal hoop plate is 12 mm.

[0024] As a further improvement of the above technical solution, the cross-shaped hoop plates have multiple rows in the height direction, and the distance between two adjacent cross-shaped hoop plates in the height direction is 250 mm.

[0025] As a further improvement of the above technical solution, the concrete column includes a concrete body and concrete column longitudinal reinforcement and concrete stirrups embedded in the concrete body. The concrete column longitudinal reinforcement passes through the internal space of the outer hoop ring plate and the concrete column longitudinal reinforcement avoids the cross anchor key and the cross hoop plate when passing through the outer hoop ring plate.

[0026] As a further improvement of the above technical solution, the concrete column stirrups are arranged in the part of the concrete column outside the range covered by the outer hoop ring plate, wherein the height distance between the concrete column stirrup closest to the outer hoop ring plate and the outer hoop ring plate is 50 mm.

[0027] As a second implementation improvement of the above technical solution, the side edge of the short corbel wing plate of the short corbel of the steel section is provided with a beam end arm, and the end point of the beam end arm is aligned with the first hoop plate of the cross hoop plate.

[0028] As a third implementation improvement of the above technical solution, the concrete column is a corner column, and there are two short steel corbels, which are fixedly connected to two adjacent outer wall surfaces of the outer hoop plate.

[0029] As a further improvement of the above technical solution, it also includes a steel beam, which includes a steel beam web and a steel beam wing plate. The steel beam web is fixedly connected to the short corbel web of the steel short corbel by high-strength bolts, and the steel beam wing plate is welded to the short corbel wing plate of the steel short corbel.

[0030] The utility model also provides:

[0031] A building adopts the steel beam and concrete column combined frame connection node.

[0032] The utility model also provides:

[0033] A construction process for connecting a steel beam and concrete column composite frame includes the following construction steps:

[0034] S1. Welding a short steel bracket to the outer wall of the outer hoop plate in a factory, setting a cross anchor key and a cross hoop plate inside the outer hoop plate, wherein the ends of the cross anchor key and the cross hoop plate are welded and fixed to the inner wall of the outer hoop plate, so that the outer hoop plate, the short steel bracket, the cross anchor key, and the cross hoop plate form a prefabricated assembly;

[0035] S2. Tie the longitudinal reinforcement and stirrups of the concrete columns on site. After the reinforcement is tied, close the mold and hoist the prefabricated components into place on site, so that the longitudinal reinforcement of the concrete columns passes through the inner space of the outer hoop plate.

[0036] S3. Pour concrete into the interior of the formwork and the inner space of the outer hoop plate to form a concrete column, so that the cross anchor key and the cross hoop plate are covered with concrete.

[0037] S4: Concrete curing, completing the construction of the connection nodes of the steel beam and concrete column composite frame.

[0038] The beneficial effects of the utility model are as follows: the utility model provides: a steel beam and concrete column combined frame connection node and a building, the steel beam and concrete column combined frame connection node and the building comprising a concrete column, an outer hoop plate, a steel short bracket, a cross anchor key and a cross hoop plate, firstly connecting the outer hoop plate, the steel short bracket, the cross anchor key and the cross hoop plate into a prefabricated assembly and then integrally casting the concrete column to form the assembly, which can effectively reduce the construction difficulty and also ensure the structural strength and rigidity of the node;

[0039] The steel beam and concrete column combined frame connection node and building provided by the utility model have the following advantages:

[0040] 1. Convenient construction: The use of outer hoop plates and cross-shaped hoop plates replaces stirrups in the node area, eliminating the need for conventional stirrups to intersect with the core steel section. This reduces the complexity of factory processing and on-site reinforcement threading, and results in less compacted concrete. This helps reduce construction difficulty and project quality. Furthermore, the cross-shaped hoop plates, outer hoop plates, and cross-shaped anchor keys form an integral unit, facilitating transportation and installation. The cross-shaped anchor keys feature a variable cross-section, reducing flange size and preventing column longitudinal reinforcement from passing through the flange.

[0041] 2. Safe and reliable; after the node is hoisted as a whole, it is poured integrally with the concrete column to form a whole with the steel beam and the concrete column, realizing the design concept of strong node and weak component, ensuring the overall stiffness and seismic performance of the node, and meeting the seismic fortification performance target of strong node and weak component under moderate and major earthquakes.

[0042] 3. Economic feasibility; it avoids the use of steel-concrete columns or steel tube concrete columns to match steel beams in conventional projects, avoids material loss and safety risks in large spaces and high formwork, speeds up on-site construction progress, effectively saves steel usage, and reduces project costs.

[0043] In summary, this type of steel beam and concrete column combined frame connection node and building solves the technical defects of the existing technology, such as high construction difficulty, difficulty in ensuring node strength and rigidity, and poor economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0045] Figure 1 This is a schematic diagram of the assembly of Example 1 of the utility model;

[0046] Figure 2 This is another assembly diagram of Example 1 of the utility model;

[0047] Figure 3 This is a schematic diagram of the assembly of the prefabricated components in Example 1 of the present utility model;

[0048] Figure 4 This is a structural breakdown diagram of the prefabricated components in Example 1 of the present utility model;

[0049] Figure 5 This is a schematic diagram of the assembly of Example 2 of the utility model;

[0050] Figure 6 This is a schematic diagram of the assembly of Example 3 of the utility model;

[0051] Figure 7 This is a schematic diagram of the assembly of Example 4 of the utility model;

[0052] Figure 8 This is an assembly diagram of Example 5 of the present invention. DETAILED DESCRIPTION

[0053] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present utility model can be combined interactively without conflicting with each other. Reference Figure 1-8 .

[0054] Example 1:

[0055] Reference Figure 1-4 ,

[0056] A steel beam and concrete column composite frame connection node, comprising:

[0057] Concrete column 1, outer hoop plate 2, steel short corbel 3, cross anchor key 4, cross hoop plate 5 and steel beam.

[0058] The concrete column 1 includes a concrete body and concrete column longitudinal bars 11 and concrete stirrups 12 embedded within the concrete body. The concrete column longitudinal bars 11 pass through the interior space of the outer hoop plate 2 and avoid the cross anchor key 4 and the cross hoop plate 5 when passing through the outer hoop plate 2. The concrete column stirrups 12 are arranged in the portion of the concrete column 1 outside the area covered by the outer hoop plate 2, wherein the concrete column stirrup 12 closest to the outer hoop plate 2 is 50 mm in height from the outer hoop plate 2.

[0059] The longitudinal reinforcement 11 of the concrete column is arranged to avoid the cross anchor key 4 and pass through the node area, which is convenient for construction.

[0060] The concrete column stirrups 12 are set outside the outer hoop plate 2, the first stirrup is 250mm away from the outer hoop plate, and the remaining areas are set according to the requirements of normal concrete columns.

[0061] The outer hoop plate 2 is wrapped around the outside of the concrete column 1; the thickness of the outer hoop plate 2 is 20 mm and is not less than 0.7 times the thickness of the short corbel wing plate of the steel short corbel 3. The upper end of the outer hoop plate 2 is flush with the floor, and the distance between the lower end of the outer hoop plate 2 and the short corbel wing plate at the lower end of the steel short corbel 3 exceeds 50 mm.

[0062] Specifically, the cross-sectional dimensions of the outer hoop plate 2 match the outer contour dimensions of the concrete column 1. It is externally connected to the concrete column 1 and replaces the outer stirrups of the concrete column 1 node. The outer hoop plate is flush with the floor, and its lower end extends 50mm beyond the lower flange of the steel short corbel 3. The outer hoop plate is 20mm thick and is no less than 0.7 times the flange thickness of the steel short corbel 3. This ensures reasonable rigidity and sufficient bearing capacity requirements, effectively transfers the bending moment and shear force of the steel short corbel 3 inward, and ensures a restraining effect on the concrete column 1 node area, effectively improving the strength and ductility of the concrete in the node area.

[0063] The short steel corbel 3 is fixedly connected to the outer wall of the outer hoop plate 2 and is used to be fixedly connected to the steel beam;

[0064] The end of the short steel corbel 3, which is adjacent to the outer hoop plate 2, is welded to the outer wall of the outer hoop plate 2. The short steel corbel 3 includes a short corbel web and a short corbel wing. One end of the short steel corbel 3 is welded to the outer hoop plate 2 in the factory, and the short steel corbel 3 is spliced ​​and connected to the steel beam at the construction site, which has the advantage of convenient installation and can improve on-site construction speed.

[0065] The cross anchor key 4 is embedded in the concrete column 1, and the end of the cross anchor key 4 is fixedly connected to the inner wall of the outer hoop ring plate 2; the cross anchor key 4 includes two anchor keys connected in a cross shape, and the end of the anchor key is welded to the inner wall of the outer hoop ring plate 2, and the anchor key includes an anchor key web and an anchor key wing plate.

[0066] The anchor key wing plate has a variable cross-section design, and its cross-sectional width decreases as it extends inward from its outer end connected to the outer hoop plate 2. The cross-sectional width of the anchor key wing plate at its end connected to the outer hoop plate 2 is 200 mm, and the cross-sectional width at the middle position inward from the end of the anchor key wing plate is 100 mm.

[0067] The cross anchor key 4 is assembled from sheet metal and factory-welded to the outer hoop plate 2. Its cross-sectional height matches the height of the connected steel short corbel 3. The flange width is tapered, with a 200mm end width to avoid interrupting the column longitudinal reinforcement, and narrows to 100mm in the middle. The cross anchor key 4 flange plate thickness is set to equal the flange area of ​​the steel short corbel 3, and the cross anchor key 4 web is set to the same thickness as the steel short corbel 3 web.

[0068] Studs 41 are provided on both sides of the anchor key web and are embedded in the concrete column 1. There are multiple studs 41, which are evenly distributed in the length and height directions of the anchor key web, and the spacing between the studs 41 is 200 mm.

[0069] The well-shaped hoop plates 5 are embedded in the concrete column 1 covered by the outer hoop ring plate 2 . The well-shaped hoop plates 5 are arranged in a well shape and the ends of the well-shaped hoop plates 5 are fixedly connected to the inner wall of the outer hoop ring plate 2 .

[0070] The cross-shaped hoop plates 5 include a vertically arranged transverse hoop plate 51 and a longitudinal hoop plate 52. The transverse hoop plates 51 and the longitudinal hoop plates 52 are perpendicularly connected to each other, and the ends of the transverse hoop plates 51 and the longitudinal hoop plates 52 are fixedly connected to the inner wall of the outer hoop ring plate 2. The cross-shaped hoop plates 5 have multiple heights, and the spacing between two adjacent cross-shaped hoop plates 51 in the height direction is 250 mm. The cross-sectional height of each cross-sectional hoop plate 51 and the longitudinal hoop plates 52 is 100 mm, and the thickness of each cross-sectional hoop plate 51 and the longitudinal hoop plates 52 is 12 mm.

[0071] Specifically, the crisscross hoop plates 5 are assembled from sheet materials and welded to the outer hoop plate 2 at the factory. Each limb of the crisscross hoop plate 5 has a cross-sectional height of 100 mm and a thickness of 12 mm. They are used to replace the stirrups within the joint of the concrete column 1. The crisscross hoop plates 5 are evenly spaced along the height of the joint, with spacing of 250 mm. The thickness and spacing of each limb of the crisscross hoop plates 5 can be adjusted based on calculation requirements to meet the shear resistance requirements of the concrete in the core area of ​​the joint.

[0072] The steel beam includes a steel beam web and a steel beam flange. The steel beam web is fixedly connected to the short corbel web of the section steel short corbel 3 by high-strength bolts, and the steel beam flange is welded to the short corbel flange of the section steel short corbel 3.

[0073] In this embodiment, there are four short steel brackets 3 , which are respectively welded to the four outer side walls of the outer hoop plate 2 .

[0074] Based on the above-mentioned steel beam and concrete column combined frame connection node, the utility model also provides:

[0075] A building adopts the steel beam and concrete column combined frame connection node.

[0076] The utility model also provides:

[0077] A construction process for connecting a steel beam and concrete column composite frame includes the following construction steps:

[0078] S1. Welding a short steel bracket 3 to the outer wall of the outer hoop plate 2 in a factory, setting a cross anchor key 4 and a cross hoop plate 5 inside the outer hoop plate 2, wherein the ends of the cross anchor key 4 and the cross hoop plate 5 are welded and fixed to the inner wall of the outer hoop plate 2, so that the outer hoop plate 2, the short steel bracket 3, the cross anchor key 4, and the cross hoop plate 5 form a prefabricated assembly;

[0079] S2, tying the concrete column longitudinal reinforcement 11 and the concrete column stirrups 12 on the construction site, closing the mold after the reinforcement is tied, and hoisting the prefabricated components into place on site so that the concrete column longitudinal reinforcement 11 passes through the inner space of the outer hoop plate 2;

[0080] S3, pouring concrete, pouring concrete into the interior of the formwork and the inner space of the outer hoop plate 2 to form a concrete column 1, so that the cross anchor key 4 and the cross hoop plate 5 are covered with concrete.

[0081] S4: Concrete curing, completing the construction of the connection nodes of the steel beam and concrete column composite frame.

[0082] The joint is welded and assembled into a single unit at the factory, enabling simple and effective control of joint quality. After the concrete column 1 is reinforced and the formwork is closed, the joint is hoisted directly into place on-site. Concrete for the concrete column 1 is then poured. Once the concrete has cured to 70% strength, the steel beams can be installed and the floor deck laid. This eliminates the complex reinforcement connection and binding processes associated with high formwork and conventional steel-concrete component joints.

[0083] Example 2:

[0084] Reference Figure 5 This embodiment is basically the same as embodiment 1, except that:

[0085] The side edge of the short corbel wing plate of the short steel corbel 3 is provided with a beam end haunch 31, and the end point of the beam end haunch 31 is aligned with the first hoop plate of the cross hoop plate 5, so the end bending moment transmission capacity is better.

[0086] Example 3:

[0087] Reference Figure 6 This embodiment is basically the same as embodiment 1, except that:

[0088] The concrete column 1 is a corner column, and the two steel short corbels 3 are fixedly connected to two adjacent outer wall surfaces of the outer hoop plate 2. Specifically, the two steel short corbels 3 are welded to the side wall and upper side wall of the outer hoop plate 2.

[0089] Example 4:

[0090] Reference Figure 7 This embodiment is basically the same as embodiment 3, except that:

[0091] There are two short steel brackets 3, which are fixedly connected to two opposite outer wall surfaces of the outer hoop plate 2. Specifically, the two short steel brackets 3 are welded to the right side wall and the left side wall of the outer hoop plate 2.

[0092] Example 5:

[0093] Reference Figure 8 This embodiment is basically the same as embodiment 1, except that:

[0094] There are three short steel brackets 3, which are fixedly connected to three adjacent outer wall surfaces of the outer hoop plate 2. Specifically, the three short steel brackets 3 are welded to the right side plate, the left side wall and the upper side wall of the outer hoop plate 2.

[0095] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A steel beam and concrete column composite frame connection node, characterized in that: include: Concrete column (1); An outer hoop plate (2), the outer hoop plate (2) being wrapped around the outside of the concrete column (1); A short steel bracket (3), wherein the short steel bracket (3) is fixedly connected to the outer wall of the outer hoop plate (2) and is used for being fixedly connected to the steel beam; A cross anchor key (4), wherein the cross anchor key (4) is embedded in the concrete column (1), and the end of the cross anchor key (4) is fixedly connected to the inner wall of the outer hoop plate (2); A tic-tac-toe hoop plate (5) is embedded in a concrete column (1) covered by the outer hoop ring plate (2), the tic-tac-toe hoop plate (5) is arranged in a tic-tac-toe shape and the end of the tic-tac-toe hoop plate (5) is fixedly connected to the inner wall of the outer hoop ring plate (2).

2. A steel beam and concrete column composite frame connection node according to claim 1, characterized in that: One end of the steel short corbel (3) close to the outer hoop ring plate (2) is welded to the outer wall of the outer hoop ring plate (2), and the steel short corbel (3) comprises a short corbel web plate and a short corbel wing plate.

3. A steel beam and concrete column composite frame connection node according to claim 1, characterized in that: The cross anchor key (4) comprises two anchor keys connected in a cross shape, the ends of the anchor keys are welded to the inner wall of the outer hoop plate (2), and the anchor keys comprise an anchor key web and an anchor key wing plate.

4. A steel beam and concrete column composite frame connection node according to claim 3, characterized in that: The anchor key wing plate is designed with a variable cross-section, and the cross-sectional width of the anchor key wing plate decreases as it extends inward from the outer end thereof connected to the outer hoop ring plate (2); The cross-sectional width of the anchor key wing plate at the end position where it is connected to the outer hoop ring plate (2) is 200 mm, and the cross-sectional width of the middle position inward from the end position of the anchor key wing plate is 100 mm.

5. The steel beam and concrete column composite frame connection node according to claim 3, characterized in that: Bolts (41) are arranged on both sides of the anchor key web, and the bolts (41) are embedded in the concrete column (1); There are a plurality of studs (41), and the plurality of studs (41) are evenly distributed in the length direction and the height direction of the anchor key web, and the spacing between the studs (41) is 200 mm.

6. A steel beam and concrete column composite frame connection node according to claim 1, characterized in that: The thickness of the outer hoop plate (2) is 20 mm and not less than 0.7 times the thickness of the short corbel wing plate of the steel short corbel (3); the upper end of the outer hoop plate (2) is flush with the floor, and the distance between the lower end of the outer hoop plate (2) and the short corbel wing plate at the lower end of the steel short corbel (3) exceeds 50 mm; The cross-shaped hoop plate (5) comprises a transverse hoop plate (51) and a longitudinal hoop plate (52) arranged vertically, wherein the transverse hoop plate (51) and the longitudinal hoop plate (52) are vertically connected to each other, and the ends of the transverse hoop plate (51) and the longitudinal hoop plate (52) are fixedly connected to the inner wall of the outer hoop ring plate (2); The height of the single-limb cross section of the transverse hoop plate (51) and the longitudinal hoop plate (52) is 100 mm, and the thickness of the transverse hoop plate (51) and the longitudinal hoop plate (52) is 12 mm; The well-shaped hoop plates (5) have a plurality of rows in the height direction, and the distance between two adjacent well-shaped hoop plates (5) in the height direction is 250 mm.

7. The steel beam and concrete column composite frame connection node according to claim 1, characterized in that: The concrete column (1) comprises a concrete body and concrete column longitudinal bars (11) and concrete stirrups (12) embedded in the concrete body, wherein the concrete column longitudinal bars (11) pass through the inner space of the outer hoop plate (2) and avoid the cross anchor key (4) and the cross hoop plate (5) when passing through the outer hoop plate (2); The concrete column stirrups (12) are arranged in a portion of the concrete column (1) outside the range covered by the outer hoop plate (2), wherein the height distance between the concrete column stirrups (12) closest to the outer hoop plate (2) and the outer hoop plate (2) is 50 mm.

8. The steel beam and concrete column composite frame connection node according to claim 1, characterized in that: The side edge of the short corbel wing plate of the short corbel (3) of the steel section is provided with a beam end axil (31), and the end point of the beam end axil (31) is aligned with the first hoop plate of the cross hoop plate (5); The concrete column (1) is a corner column, and the two steel short brackets (3) are provided, and the two steel short brackets (3) are fixedly connected to two adjacent outer wall surfaces of the outer hoop plate (2).

9. A steel beam and concrete column composite frame connection node according to any one of claims 1 to 8, characterized in that: It also includes a steel beam, which includes a steel beam web and a steel beam wing plate. The steel beam web is fixedly connected to the short corbel web of the steel short corbel (3) by high-strength bolts, and the steel beam wing plate is welded to the short corbel wing plate of the steel short corbel (3).

10. A building, characterized in that: The building adopts the steel beam and concrete column combined frame connection node described in any one of claims 1-9.

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