Connecting structure of steel reinforced concrete column and reinforced concrete beam and implementation method of connecting structure

Abstract

The invention relates to a connecting structure of a steel reinforced concrete column and a reinforced concrete beam, which comprises the steel reinforced concrete column and the reinforced concrete beam, the steel reinforced concrete column is connected with the reinforced concrete beam, and cross steel, a first steel bar connecting butt strap and a stiffening plate are arranged in the steel reinforced concrete column; the position, corresponding to the reinforced concrete beam, of the cross-shaped end of the cross-shaped steel is fixedly connected with the first steel bar connecting butt strap. The stiffening plate is welded at the right angle of the cross-shaped steel; a beam main rib and a beam bending rib are arranged in the reinforced concrete beam; one end of the beam main rib and one end of the beam bending rib extend into the steel reinforced concrete column, one end of the beam main rib is fixedly connected with the first steel bar connecting butt strap, the end, close to the cross-shaped steel, of the beam bending rib bends and extends upwards, and the beam bending rib is fixedly connected with the stiffening plate. The invention further relates to an implementation method of the connecting structure of the steel reinforced concrete column and the reinforced concrete beam, cross-shaped steel does not need to be perforated, the mechanical property is higher, and the method belongs to the technical field of building construction.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a connection structure of a steel-concrete column and a reinforced concrete beam and an implementation method thereof. Background Art

[0002] In modern construction projects, the connection structure between steel-concrete columns and reinforced concrete beams is a key node widely used in buildings. CN204609002U discloses a steel-concrete column and a prestressed beam frame node, which is achieved by setting a cross-shaped web with flanges inside the steel-concrete column and passing the prestressed steel bars in the prestressed beam through the holes on the web to achieve the connection between the two. Although this design provides certain structural strength and construction convenience, it also has some obvious shortcomings:

[0003] Web openings affect structural strength: In order to allow prestressed steel bars to pass through, web openings must be processed. However, these openings inevitably weaken the integrity and local strength of the web, and may become the weak link of the structure, especially when subjected to large loads.

[0004] Concrete pouring quality issues: In the actual construction process, due to the special geometric shape of the openings, it is difficult to completely and densely fill every corner with concrete, and it is easy to form holes or honeycomb defects, which not only reduces the density of the concrete, but also seriously affects its compressive and other mechanical properties, ultimately leading to a decrease in the bearing capacity of the entire structure.

[0005] Increased processing difficulty and cost: The web opening requires precise processing technology, which increases the technical requirements and complexity of the manufacturing process. It also brings additional time costs and material waste, and increases the overall cost of the construction project.

[0006] Long-term durability issues: Over time, stress concentrations caused by openings may increase metal corrosion or other forms of degradation, affecting the long-term safety and durability of the building. Summary of the invention

[0007] In view of the technical problems existing in the prior art, the purpose of the present invention is to provide a connection structure between a steel-concrete column and a reinforced concrete beam and an implementation method thereof, wherein the cross-shaped steel does not require holes to be opened and has higher mechanical properties.

[0008] In order to achieve the above object, the present invention adopts the following technical solution:

[0009] The connection structure of a steel-concrete column and a reinforced concrete beam comprises a steel-concrete column and a reinforced concrete beam, wherein the steel-concrete column is connected to the reinforced concrete beam, and a cross-shaped steel, a first steel bar connection strap and a stiffening plate are arranged in the steel-concrete column; the length of the cross-shaped steel extends in the up-down direction, and the cross end of the cross-shaped steel is fixedly connected with the first steel bar connection strap at a position corresponding to the reinforced concrete beam; the stiffening plate is welded at a right angle of the cross-shaped steel; main beam reinforcement and beam bending reinforcement are arranged in the reinforced concrete beam; the main beam reinforcement and the beam bending reinforcement both extend in the length direction of the reinforced concrete beam, and one end of the main beam reinforcement and the beam bending reinforcement both extend into the steel-concrete column, and one end of the main beam reinforcement is fixedly connected with the first steel bar connection strap, and the beam bending reinforcement is bent upward and extended near one end of the cross-shaped steel, and the beam bending reinforcement is fixedly connected with the stiffening plate.

[0010] As a preferred embodiment, a wing plate is provided at the cross end of the cross-shaped steel, the length of the wing plate extends in the up-down direction, and the cross end of the cross-shaped steel is fixedly connected to the first steel bar connecting strap through the wing plate.

[0011] As a preferred embodiment, a reinforcing steel component is fixedly connected to the first steel bar connection strap, and the reinforcing steel component is fixedly connected to the wing plate.

[0012] As a preferred embodiment, the reinforcing steel assembly includes a first reinforcing steel and two second reinforcing steels, the first reinforcing steel and the second reinforcing steel are respectively fixedly connected to the first steel bar connecting plate, and the first reinforcing steel and the second reinforcing steel are respectively fixedly connected to the wing plate; the two second reinforcing steels are symmetrically distributed on both sides of the first reinforcing steel, and a beam main reinforcement positioning groove is formed between the first reinforcing steel and the second reinforcing steel.

[0013] As a preferred embodiment, the cross steel includes four webs, and the four webs are connected to each other; the reinforced concrete beam includes two straight reinforced concrete beams and two inclined reinforced concrete beams, the number of first steel bar connection plates corresponding to one straight reinforced concrete beam on the wing plate is two, and the two first steel bar connection plates are arranged up and down in the vertical direction; the number of first steel bar connection plates corresponding to one inclined reinforced concrete beam on the wing plate is two, and the two first steel bar connection plates are arranged up and down in the vertical direction; a second steel bar connection plate is fixedly connected to the wing plate corresponding to the inclined reinforced concrete beam, the first steel bar connection plate and the second steel bar connection plate are both horizontally arranged, and the second steel bar connection plate is located between the two first steel bar connection plates; the main beam reinforcement is provided with multiple rows in the up and down direction, and a row of beam main reinforcement is fixedly connected to the first steel bar connection plate and the second steel bar connection plate.

[0014] As a preferred embodiment, in the straight reinforced concrete beam, the number of main beam bars in each row is two, and one end of the two main beam bars in the same row passes through the corresponding main beam bar positioning grooves; in the inclined reinforced concrete beam, the number of main beam bars in each row is three, and the main beam bars are fixedly connected to the upper surface of the first steel bar connecting plate, wherein one end of two adjacent main beam bars passes through the main beam bar positioning groove, and one end of the other main beam bar is close to the outer side of the second reinforcing steel.

[0015] As a preferred embodiment, the stiffening plates are arranged in two layers, with four stiffening plates in each layer, and the stiffening plates are fixedly connected between two adjacent webs. The stiffening plates are arranged horizontally, and the top surface of the stiffening plates is at the same height as the top surface of the first steel bar connection strap. In each reinforced concrete beam, beam bending reinforcements are arranged in two upper and lower rows, with two beam bending reinforcements in each row, and the two beam bending reinforcements in the same row are arranged on both sides of a row of beam main reinforcements on the first steel bar connection strap. The beam bending reinforcements of two adjacent reinforced concrete beams are staggered up and down at the intersection, and the two beam bending reinforcements are welded at the intersection.

[0016] As a preferred embodiment, the two first steel bar connection plates are respectively located at the inner upper part and the inner lower part of the reinforced concrete beam, and a plurality of beam stirrups are also arranged in the reinforced concrete beam. The beam stirrups simultaneously surround and bind the main reinforcement and the beam bending reinforcement of the beam, and the plurality of beam stirrups are arranged along the length direction of the reinforced concrete beam.

[0017] As a preferred embodiment, a plurality of bolts are welded on each wing plate, and the plurality of bolts are arranged in the up-down direction.

[0018] The construction method of the connection structure of the steel-concrete column and the reinforced concrete beam, the construction method steps are as follows: step 1: welding a stiffening plate on the right angle of the cross-shaped steel, and the cross end of the cross-shaped steel is fixedly connected to the first steel bar connection plate; step 2: positioning and installing the cross-shaped steel, and vertically installing the cross-shaped steel on the target plane; step 3: setting a column formwork at the corresponding position of the steel-concrete column, setting a beam bottom formwork at the corresponding position of the reinforced concrete beam bottom, and placing the beam main reinforcement and beam bending reinforcement at the corresponding position of the reinforced concrete beam; welding the beam bending reinforcement on the stiffening plate, and welding the beam main reinforcement on the first steel bar connection plate; step 4: setting a beam side formwork on the beam bottom formwork; step 5: pouring self-compacting concrete in the steel-concrete column and the reinforced concrete beam, and removing the column formwork, the beam bottom formwork and the beam side formwork after the self-compacting concrete solidifies.

[0019] The present invention has the following advantages:

[0020] (1) By arranging cross-shaped steel, first steel bar connection plate and stiffening plate in steel concrete columns and rationally connecting these components with the main reinforcement and bending reinforcement in reinforced concrete beams, the shear resistance and integrity of the node area can be greatly increased, thereby improving the stability and safety of the structure.

[0021] (2) One end of the main reinforcement and bending reinforcement of the beam extends into the steel concrete column and is fixedly connected to the first reinforcement connection plate and the stiffening plate. This design ensures effective force transmission, reduces stress concentration, and improves the structural bearing capacity.

[0022] (3) Due to the design of the beam main reinforcement positioning groove, the installation of the beam main reinforcement is more convenient and quick, while also ensuring the accuracy of the position of the beam main reinforcement, which helps to improve construction efficiency and reduce on-site adjustment time.

[0023] (4) The beam main reinforcement positioning groove provides accurate positioning of the beam main reinforcement at one end of the steel concrete column. The beam main reinforcement only needs to be inserted into the beam main reinforcement positioning groove to achieve accurate positioning, which solves the problem of the existing technology that the beam main reinforcement is difficult to accurately position, resulting in inaccurate binding position of the beam main reinforcement, and insufficient strength and stiffness of the connection node. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a top view of the beam main reinforcement, beam bending reinforcement, column longitudinal reinforcement, beam stirrups and beam waist reinforcement of the present invention that have not been cast and installed.

[0026] Figure 2 for Figure 1 A-direction view.

[0027] Figure 3 for Figure 1 B view.

[0028] Figure 4 It is a top view of the present invention before casting.

[0029] Figure 5 for Figure 4 C-direction view.

[0030] Figure 6 for Figure 4 D-direction view.

[0031] Among them, 1. Steel-concrete column; 2. Reinforced concrete beam; 3. Straight reinforced concrete beam; 4. Inclined reinforced concrete beam; 5. Cross-shaped steel; 6. Web; 7. First steel bar connection lap plate; 8. Second steel bar connection lap plate; 9. Stiffening plate; 10. Wing plate; 11. Beam main reinforcement; 12. Beam bending reinforcement; 13. Column longitudinal reinforcement; 14. Beam stirrups; 15. Beam waist reinforcement; 16. First reinforcing steel; 17. Second reinforcing steel; 18. Beam main reinforcement positioning groove; 19. Bolts; 20. Avoid groove; 21. Joint; 22. Reinforcement steel assembly; 23. Column stirrups. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0033] like Figures 1 to 6 As shown, the connection structure of the steel-concrete column and the reinforced concrete beam comprises a steel-concrete column 1 and a reinforced concrete beam 2. The steel-concrete column 1 is connected to the reinforced concrete beam 2. The steel-concrete column 1 and the reinforced concrete beam 2 are cast into one piece. A cross-shaped steel 5, a first steel bar connection plate 7 and a stiffening plate 9 are arranged in the steel-concrete column 1. The length of the cross-shaped steel 5 extends in the up-down direction. A wing plate 10 is arranged at the cross end of the cross-shaped steel 5. The length of the wing plate 10 extends in the up-down direction. The cross end of the cross-shaped steel 5 is connected by the wing plate 1. 0 is fixedly connected with the first steel bar connection strap 7; the stiffening plate 9 is welded at the right angle of the cross steel 5; the main beam reinforcement 11 and the beam bending reinforcement 12 are arranged in the reinforced concrete beam 2; the main beam reinforcement 11 and the beam bending reinforcement 12 are extended along the length direction of the reinforced concrete beam 2, and one end of the main beam reinforcement 11 and the beam bending reinforcement 12 are extended into the steel concrete column 1, one end of the main beam reinforcement 11 is fixedly connected with the first steel bar connection strap 7, the beam bending reinforcement 12 is bent upward and extends near one end of the cross steel 5, and the beam bending reinforcement 12 is fixedly connected with the stiffening plate 9. The cross steel 5 is the main load-bearing member of the steel concrete column 1, and bears the main load of the steel concrete column 1. The main body of the cross steel 5 does not need to be perforated for the main beam reinforcement 11 and the beam bending reinforcement 12 to pass through, so as to ensure that the overall force of the cross steel 5 is not damaged, and no holes are generated in the concrete due to perforation, so as to ensure the high mechanical properties of the connection structure. The invention is simple to construct and has strong applicability, and ensures the integrity and stability of the connection structure.

[0034] The cross-shaped steel 5 includes four webs 6, which are connected to each other; the reinforced concrete beam 2 includes two positive reinforced concrete beams 3 and two inclined reinforced concrete beams 4; the number of first steel bar connection straps 7 corresponding to one positive reinforced concrete beam 3 on the wing plate 10 is two, and the two first steel bar connection straps 7 are arranged vertically up and down; the number of first steel bar connection straps 7 corresponding to one inclined reinforced concrete beam 4 on the wing plate 10 is two, and the two first steel bar connection straps 7 are arranged vertically up and down; the angle formed between adjacent positive reinforced concrete beams 3 and inclined reinforced concrete beams 4 is greater than 90° Or less than 90°; a second steel bar connection strap 8 is fixedly connected to the wing plate 10 corresponding to the inclined reinforced concrete beam 4, and the second steel bar connection strap 8 is not arranged at the wing plate 10 corresponding to the positive reinforced concrete beam 3, the first steel bar connection strap 7 and the second steel bar connection strap 8 are both arranged horizontally, and the second steel bar connection strap 8 is located between the two first steel bar connection straps 7; the main beam reinforcement 11 is provided with multiple rows in the up and down directions, and a row of beam main reinforcement 11 is welded on the first steel bar connection strap 7 and the second steel bar connection strap 8, and the number of each row of beam main reinforcement 11 is multiple, which significantly enhances the shear resistance and integrity of the connection structure.

[0035] The length of the second steel bar connection strap 8 is longer than that of the first steel bar connection strap 7. The second steel bar connection strap 8 extends into the inclined reinforced concrete beam 4, so that the length of the weld between the main beam reinforcement 11 on the second steel bar connection strap 8 and the second steel bar connection strap 8 is longer, which can better resist the shear force of the inclined reinforced concrete beam 4.

[0036] A plurality of beam stirrups 14 are also arranged in the reinforced concrete beam 2. The beam stirrups 14 surround and tie the beam main reinforcement 11 and the beam bending reinforcement 12 at the same time. The plurality of beam stirrups 14 are arranged along the length direction of the reinforced concrete beam 2. Multiple rows of beam waist reinforcements 15 are arranged between the beam main reinforcements 11 corresponding to the two first reinforcement connection straps 7. The length of the beam waist reinforcement 15 extends along the length of the reinforced concrete beam 2. The beam waist reinforcement 15 is inside the beam stirrups 14 and tied to the beam stirrups 14. The beam stirrups 14 fix the positions of the beam main reinforcement 11, the beam bending reinforcement 12 and the beam waist reinforcement 15, and help improve the shear strength of the reinforced concrete beam 2.

[0037] A reinforcing steel assembly 22 is fixedly connected to the first steel bar connection strap 7, and the reinforcing steel assembly 22 is fixedly connected to the wing plate 10. The reinforcing steel assembly 22 includes a first reinforcing steel 16 and two second reinforcing steels 17, the first reinforcing steel 16 and the second reinforcing steel 17 are respectively fixedly connected to the first steel bar connection strap 7, and the first reinforcing steel 16 and the second reinforcing steel 17 are respectively fixedly connected to the wing plate 10, and the first reinforcing steel 16 and the second reinforcing steel 17 strengthen the connection strength between the first steel bar connection strap 7 and the wing plate 10, thereby enhancing the connection strength between the main beam reinforcement 11 and the first steel bar connection strap 7, so as to enhance the resistance to the shear force of the reinforced concrete beam 2 and the steel concrete column 1; the two second reinforcing steels 17 are symmetrically distributed on both sides of the first reinforcing steel 16, and a beam main reinforcement positioning groove 18 is formed between the first reinforcing steel 16 and the second reinforcing steel 17. In the straight reinforced concrete beam 3, the number of beam main bars 11 in each row is two, and one end of the two beam main bars 11 in the same row passes through the corresponding beam main bar positioning groove 18; in the inclined reinforced concrete beam 4, the number of beam main bars 11 in each row is three, and the beam main bars 11 are fixedly connected to the upper surface of the first steel bar connection slat 7, wherein one end of two adjacent beam main bars 11 passes through the beam main bar positioning groove 18, and one end of the other beam main bar 11 is close to the outer side of the second reinforcing steel 17. The beam main bar positioning groove 18 provides accurate positioning of the beam main bar 11 at one end of the steel concrete column 1, and the beam main bar 11 can be accurately positioned by passing through the beam main bar positioning groove 18, which solves the problem that the beam main bar 11 in the prior art is difficult to accurately position, resulting in inaccurate binding position of the beam main bar 11, and insufficient strength and rigidity of the connection node. At the same time, it makes the installation of the beam main bar 11 more convenient and quick, ensures the accuracy of the position of the beam main bar 11, helps to improve construction efficiency, and reduces on-site adjustment time.

[0038] When the main beam reinforcement 11 on the first reinforcement connection strap 7 is welded to the first reinforcement connection strap 7, the weld extends on the first reinforcement connection strap 7 along the length of the main beam reinforcement 11, and there is a weld on both sides of the length direction of the main beam reinforcement 11. When the main beam reinforcement 11 on the second reinforcement connection strap 8 is welded to the second reinforcement connection strap 8, the weld extends on the second reinforcement connection strap 8 along the length of the main beam reinforcement 11, and there is a weld on both sides of the length direction of the main beam reinforcement 11. Having welds on both sides of the main beam reinforcement 11 can ensure effective welding connection and ensure connection rigidity.

[0039] The stiffening plate 9 is arranged in two layers, the number of stiffening plates 9 in each layer is four, the stiffening plate 9 is fixedly connected between two adjacent web plates 6, the stiffening plate 9 is arranged horizontally, the stiffening plate 9 enhances the shear strength of the cross-shaped steel 5, and increases the structural stability and bearing capacity of the cross-shaped steel 5; the top surface of the stiffening plate 9 is at the same height as the top surface of the first steel bar connection strap 7; in each reinforced concrete beam 2, the beam bending ribs 12 are arranged in two rows, the number of the beam bending ribs 12 in each row is two, and the two beam bending ribs 12 in the same row are arranged on one of the first steel bar connection straps 7 On both sides of the main reinforcement 11 of the beam row, the beam bending reinforcement 12 of the two adjacent reinforced concrete beams 2 are staggered up and down at the intersection 21, and the two beam bending reinforcements 12 are welded at the intersection 21. The beam bending reinforcement 12 is bent upward to enhance the anchoring effect of the beam bending reinforcement 12 and the concrete. The ends of the beam bending reinforcement 12 form upward hooks, which increase the vertical contact area between the beam bending reinforcement 12 and the concrete, thereby improving the anchoring force of the beam bending reinforcement 12. This design can effectively prevent the beam bending reinforcement 12 from being pulled out of the concrete, thereby ensuring the stability and safety of the connection structure.

[0040] The upward bending length of the beam bending reinforcement 12 is 15 times the diameter of the beam bending reinforcement 12, ensuring that the upward hook formed at the end of the beam bending reinforcement 12 has sufficient anchoring force.

[0041] A plurality of bolts 19 are welded on each wing plate 10, and the plurality of bolts 19 are arranged in the up-down direction. The cross-shaped steel 5 is anchored to the concrete through the bolts 19 to strengthen the connection strength with the concrete.

[0042] A plurality of column longitudinal bars 13 are arranged in the steel-concrete column 1, and the plurality of column longitudinal bars 13 are evenly distributed along the circumference. Column stirrups 23 are arranged outside the column longitudinal bars 13, and the column stirrups 23 surround the outer sides of the plurality of column longitudinal bars 13. The plurality of column stirrups 23 are arranged in the up-down direction, and the column stirrups 23 help to limit the deformation of the concrete and the column longitudinal bars 13, and maintain the structural integrity of the steel-concrete column 1. The first steel bar connection strap 7 and the second steel bar connection strap 8 are both provided with avoidance grooves 20 for avoiding the column longitudinal bars 13.

[0043] The invention also discloses a construction method of a connection structure of a steel-concrete column and a reinforced concrete beam, comprising the following steps:

[0044] Step 1: Weld the stiffening plate 9 and the wing plate 10 at the corresponding positions of the cross-shaped steel 5, weld the studs 19, the first steel bar connecting plate 7 and the second steel bar connecting plate 8 on the wing plate 10, and weld the first reinforcing steel 16 and the second reinforcing steel 17 on the first steel bar connecting plate 7;

[0045] Step 2: Position and install the cross-shaped steel 5, install the cross-shaped steel 5 upright on the target plane, set column longitudinal reinforcement 13 on the periphery of the cross-shaped steel 5, and tie column stirrups 23 around the column longitudinal reinforcement 13 at the corresponding position below the reinforced concrete beam 2;

[0046] Step 3: Setting a column formwork at a corresponding position of the steel concrete column 1, setting a beam bottom formwork at a corresponding position of the bottom of the reinforced concrete beam 2, welding the beam bending reinforcement 12 on the stiffening plate 9 located below, and welding the beam main reinforcement 11 on the first steel bar connection plate 7 located below;

[0047] Step 4: Set the beam side formwork on the beam bottom formwork, tie the column stirrups 23 around the column longitudinal reinforcement 13 within the range of the reinforced concrete beam 2, put the beam main reinforcement 11 and the beam waist reinforcement 15 into the range of the reinforced concrete beam 2, tie the beam stirrups 14 and the beam waist reinforcement 15, weld the beam main reinforcement 11 on the second reinforcement connection strap 8, weld the beam bending reinforcement 12 on the upper stiffening plate 9, and weld the beam main reinforcement 11 on the upper first reinforcement connection strap 7; finally, tie the column stirrups 23 around the column longitudinal reinforcement 13 at the corresponding position above the reinforced concrete beam 2;

[0048] Step 5: Pour self-compacting concrete, and remove the column formwork, beam bottom formwork and beam side formwork after the self-compacting concrete solidifies.

[0049] The above construction method process is simple and easy to operate, and can effectively improve construction efficiency and accuracy.

[0050] The present invention is further described above with the aid of specific embodiments. However, it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in the field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A connection structure of a steel-concrete column and a reinforced concrete beam, comprising a steel-concrete column (1) and a reinforced concrete beam (2), wherein the steel-concrete column (1) is connected to the reinforced concrete beam (2), and is characterized in that: A cross-shaped steel (5), a first steel bar connection strap (7) and a stiffening plate (9) are arranged in the steel-concrete column (1); the length of the cross-shaped steel (5) extends in the up-down direction, and the cross end of the cross-shaped steel (5) is fixedly connected to the first steel bar connection strap (7) at a position corresponding to the reinforced concrete beam (2); the stiffening plate (9) is welded at a right angle of the cross-shaped steel (5); a beam main reinforcement (11) and a beam bending reinforcement (12) are arranged in the reinforced concrete beam (2); the beam main reinforcement (11) and the beam bending reinforcement (12) both extend in the length direction of the reinforced concrete beam (2), one end of the beam main reinforcement (11) and the beam bending reinforcement (12) both extend into the steel-concrete column (1), one end of the beam main reinforcement (11) is fixedly connected to the first steel bar connection strap (7), the beam bending reinforcement (12) is bent upward near one end of the cross-shaped steel (5), and the beam bending reinforcement (12) is fixedly connected to the stiffening plate (9).

2. The connection structure of the steel concrete column and the reinforced concrete beam according to claim 1 is characterized in that: A wing plate (10) is provided at the cross end of the cross-shaped steel (5), the length of the wing plate (10) extending in the up-down direction, and the cross end of the cross-shaped steel (5) is fixedly connected to the first steel bar connection strap (7) via the wing plate (10).

3. The connection structure of the steel concrete column and the reinforced concrete beam according to claim 2 is characterized in that: A reinforcing steel component (22) is fixedly connected to the first steel bar connecting strap (7), and the reinforcing steel component (22) is fixedly connected to the wing plate (10).

4. The connection structure of the steel concrete column and the reinforced concrete beam according to claim 3 is characterized in that: The reinforcing steel assembly (22) comprises a first reinforcing steel (16) and two second reinforcing steels (17); the first reinforcing steel (16) and the second reinforcing steel (17) are respectively fixedly connected to the first steel bar connection strap (7); the first reinforcing steel (16) and the second reinforcing steel (17) are respectively fixedly connected to the wing plate (10); the two second reinforcing steels (17) are symmetrically distributed on both sides of the first reinforcing steel (16); a beam main reinforcement positioning groove (18) is formed between the first reinforcing steel (16) and the second reinforcing steel (17).

5. The connection structure of the steel concrete column and the reinforced concrete beam according to claim 2 is characterized in that: The cross-shaped steel (5) includes four webs (6), and the four webs (6) are connected to each other; the reinforced concrete beam (2) includes two positive reinforced concrete beams (3) and two inclined reinforced concrete beams (4); the number of first steel bar connection straps (7) corresponding to one positive reinforced concrete beam (3) on the wing plate (10) is two, and the two first steel bar connection straps (7) are arranged vertically up and down; the number of first steel bar connection straps (7) corresponding to one inclined reinforced concrete beam (4) on the wing plate (10) is two, and the two The first steel bar connection straps (7) are arranged vertically up and down; the wing plate (10) is fixedly connected with a second steel bar connection strap (8) at a position corresponding to the inclined reinforced concrete beam (4); the first steel bar connection strap (7) and the second steel bar connection strap (8) are both arranged horizontally, and the second steel bar connection strap (8) is located between two first steel bar connection straps (7); multiple rows of beam main bars (11) are arranged in the vertical direction, and a row of beam main bars (11) is fixedly connected to each of the first steel bar connection strap (7) and the second steel bar connection strap (8).

6. The connection structure of the steel concrete column and the reinforced concrete beam according to claim 5, characterized in that: In the straight reinforced concrete beam (3), the number of beam main bars (11) in each row is two, and one end of the two beam main bars (11) in the same row passes through the corresponding beam main bar positioning groove (18); in the inclined reinforced concrete beam (4), the number of beam main bars (11) in each row is three, and the beam main bars (11) are fixedly connected to the upper surface of the first steel bar connection plate (7), wherein one end of two adjacent beam main bars (11) passes through the beam main bar positioning groove (18), and one end of the other beam main bar (11) is close to the outer side of the second reinforcing steel (17).

7. The connection structure of the steel concrete column and the reinforced concrete beam according to claim 5, characterized in that: The stiffening plates (9) are arranged in two layers, each layer of the stiffening plates (9) has four stiffening plates (9), the stiffening plates (9) are fixedly connected between two adjacent web plates (6), the stiffening plates (9) are arranged horizontally, and the top surface of the stiffening plates (9) is at the same height as the top surface of the first steel bar connection strap (7); in each reinforced concrete beam (2), two upper and lower rows of beam bending bars (12) are arranged, each row of beam bending bars (12) has two rows, two beam bending bars (12) in the same row are arranged on both sides of a row of beam main bars (11) on the first steel bar connection strap (7), the beam bending bars (12) of two adjacent reinforced concrete beams (2) are staggered up and down at the intersection (21), and the two beam bending bars (12) are welded at the intersection (21).

8. The connection structure of the steel concrete column and the reinforced concrete beam according to claim 7, characterized in that: The two first steel bar connection plates (7) are respectively located at the inner upper part and the inner lower part of the reinforced concrete beam (2). A plurality of beam stirrups (14) are also arranged in the reinforced concrete beam (2). The beam stirrups (14) simultaneously surround and bind the beam main reinforcement (11) and the beam bending reinforcement (12). The plurality of beam stirrups (14) are arranged along the length direction of the reinforced concrete beam (2).

9. The connection structure of the steel concrete column and the reinforced concrete beam according to claim 2, characterized in that: A plurality of studs (19) are welded on each wing plate (10), and the plurality of studs (19) are arranged in an up-down direction.

10. The construction method of the connection structure between a steel concrete column and a reinforced concrete beam according to any one of claims 1 to 9, characterized in that: The construction method steps are as follows: Step 1: Weld a stiffening plate (9) at a right angle to the cross-shaped steel (5), and fix the cross end of the cross-shaped steel (5) to the first steel bar connection plate (7); Step 2: Position and install the cross-shaped steel (5), and install the cross-shaped steel (5) upright on the target plane; Step 3: Setting a column formwork at a corresponding position of the steel concrete column (1), setting a beam bottom formwork at a corresponding position of the bottom of the reinforced concrete beam (2), placing beam main reinforcement (11) and beam bending reinforcement (12) at corresponding positions of the reinforced concrete beam (2); welding the beam bending reinforcement (12) on the stiffening plate (9), and welding the beam main reinforcement (11) on the first reinforcement connection plate (7); Step 4: Set the beam side formwork on the beam bottom formwork; Step 5: pour self-compacting concrete into the steel concrete column (1) and the reinforced concrete beam (2), and remove the column formwork, beam bottom formwork and beam side formwork after the self-compacting concrete solidifies.

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