Prefabricated type steel column corbel and steel reinforced concrete beam joint

Abstract

This invention relates to the field of building construction technology, specifically to a prefabricated steel column corbel and steel-concrete beam joint, comprising an installation sleeve that is fitted onto the steel column corbel, which is mounted on the steel column. The installation sleeve has side grooves on both sides, into which steel-concrete longitudinal reinforcement bars are inserted. One end of each steel-concrete longitudinal reinforcement bar is inserted into the steel column. A limit frame is inserted into one end of the installation sleeve, and a hoop is integrally formed on the surface of the limit frame. A rubber clamp is provided between the hoop and the steel-concrete longitudinal reinforcement bar. The advantages are: by adopting a prefabricated technical solution, the installation sleeve containing the steel-concrete longitudinal reinforcement bars is directly fitted onto the steel column corbel, which greatly reduces the workload and time of on-site construction compared to the existing method of directly binding the reinforcing steel frame on site.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a prefabricated steel column corbel and steel-concrete beam joint. Background Technology

[0002] In the field of building construction, the connection between the steel column corbel and the steel-concrete beam joint is a critical link. The quality of the connection and the construction efficiency directly affect the safety and stability of the entire building structure as well as the progress of the project.

[0003] In traditional techniques, the reinforcement frames for steel-concrete composite beams are typically erected and tied directly on-site. This method has several drawbacks: Firstly, tying the reinforcement frames on-site requires significant manpower and time, and the process is cumbersome, resulting in low on-site construction efficiency for steel-concrete composite beams and extending the overall project duration. Secondly, the complex on-site operating environment makes it difficult to ensure consistent reinforcement binding quality, leading to uneven reinforcement spacing and insecure binding, which in turn affects the reliability of the connection between the steel-concrete composite beam and the steel column bracket, posing potential risks to the safety of the building structure.

[0004] Furthermore, traditional connection methods lack sufficient flexibility and adaptability when dealing with complex construction environments and diverse building requirements, making it difficult to meet the demands of modern construction projects for efficient and high-quality construction. Therefore, developing a new type of precast steel column corbel connection technology to steel-concrete beam joints is of significant practical importance. Summary of the Invention

[0005] The purpose of this invention is to provide a prefabricated steel column corbel and steel-concrete beam joint to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated steel column corbel and steel-concrete beam joint, comprising an installation sleeve, which is fitted onto the steel column corbel, the steel column corbel being installed on the column body of the steel column, side grooves being provided on both sides of the installation sleeve, steel-concrete longitudinal reinforcement bars being inserted into the side grooves, one end of the steel-concrete longitudinal reinforcement bars being inserted into the column body of the steel column, a limit frame being inserted into one end of the installation sleeve, a hoop being integrally formed on the surface of the limit frame, a rubber clamp being provided between the hoop and the steel-concrete longitudinal reinforcement bars, a buckle plate being fixed on both the top and bottom surfaces of the installation sleeve, a hoop plate being hinged at both ends of the buckle plate, and the two hoop plates being connected by bolts.

[0007] Preferably, a connecting plate is fixed to the other end of the mounting sleeve, and a pad is provided on one side of the steel column. The pad and the connecting plate are symmetrically distributed about the steel column. Multiple perforations are opened on the surfaces of the connecting plate, the pad, and the steel column. The perforations on the surfaces of the connecting plate, the pad, and the steel column are penetrated by tie rods, and the connecting plate and the pad are fixed to both sides of the steel column by the tie rods.

[0008] Preferably, a plurality of jack holes are formed on the surface of the steel column, and the jack holes correspond to the side grooves one by one. The profiled steel concrete longitudinal bars penetrate through the side grooves and then are inserted into the jack holes. A plurality of stirrups are sleeved and fixed at the ends of the profiled steel concrete longitudinal bars.

[0009] Preferably, a notch is formed at one end of the installation sleeve, the limiting frame is inserted into the notch, screw holes are formed on the top and bottom surfaces of the limiting frame and the notch, and the same hand-tightening screw is screwed on the surfaces of the notch and the limiting frame.

[0010] Preferably, the hoop piece is in the shape of an arc-shaped piece, and the hoop pieces correspond to the side grooves one by one. An embedding groove is formed at one end of the hoop piece, and the embedding groove is in the shape of an arc-shaped groove. The rubber clamping piece is fixed in the embedding groove. The inner ring diameter of the rubber clamping piece is smaller than the inner diameter of the hoop piece. The rubber clamping piece is clamped between the hoop piece and the profiled steel concrete longitudinal bar to generate elastic deformation.

[0011] Preferably, the length of the profiled steel concrete longitudinal bar extending out of the steel column is greater than the length of the installation sleeve.

[0012] Preferably, the buckle plate is in the shape of a "C"-shaped plate structure, a reinforcing block is fixed on the surface of the buckle plate, one end of the reinforcing block is fixed on the outer wall of the installation sleeve, the hoop plate is hinged to the buckle plate through a hinge, a bolt hole is formed at the end of the hoop plate far away from the buckle plate, and a bolt penetrates through the bolt hole.

[0013] Preferably, two reserved grooves are formed on the surface of the buckle plate, and the two reserved grooves are symmetrically distributed with respect to the installation sleeve. Splicing columns are fixed on the surfaces of the reserved grooves and the connecting plate. The splicing columns are in the shape of semi-cylinders with external threads. The external threads on the splicing columns on the surfaces of the reserved grooves and the connecting plate are connected to form a stud, and a nut is sleeved on the stud.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The precast profiled steel column corbel and profiled steel concrete beam node proposed by the present invention adopts a precast technical solution, directly sleeving the installation sleeve provided with profiled steel concrete longitudinal bars on the profiled steel column corbel. Compared with the prior art of directly binding the steel bar frame on site, the workload and time of on-site construction are greatly reduced. Construction workers do not need to perform cumbersome steel bar binding operations on site. They only need to perform simple sleeving and fixing operations to complete the preliminary construction of the node, significantly improving the on-site construction efficiency of the profiled steel concrete beam and being beneficial to shortening the construction period of the entire project.

[0016] Multiple fixing methods ensure the robustness of the joint connection. Tie rods are used to fix the connecting plate and pad to both sides of the steel column, allowing the steel column corbel to be stably suspended. One end of the steel-concrete longitudinal reinforcement is inserted into the steel column to effectively transfer the load. A limiting frame and rubber clamps work together to elastically prevent the steel-concrete longitudinal reinforcement from loosening and falling off. Buckle plates and hoops fix the mounting sleeve to the steel column corbel, and the buckle plates and connecting plates are further reinforced by splicing columns and nuts. These multiple fixing measures work together to enhance the stability and reliability of the joint between the steel column corbel and the steel-concrete beam, ensuring the safety of the building structure.

[0017] Prefabricated installation sleeves are produced in a standardized manner in the factory, which can strictly control the spacing, quantity and binding quality of the longitudinal reinforcement of steel-concrete composite beams. This ensures that the position of each steel bar is accurate and the binding is firm, avoiding quality differences caused by human factors during on-site construction. It improves the construction quality of steel-concrete composite beams, enabling the building structure to better bear the load and extend its service life.

[0018] The technical solution of this invention has strong flexibility and adaptability, and can adapt to different construction environments and building requirements. Components such as mounting sleeves, limiting frames, and buckles can be designed and adjusted according to actual engineering conditions, making it convenient for construction personnel to install and disassemble. It is especially suitable for engineering projects with high requirements for construction efficiency and quality, limited construction space, or complex construction conditions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a top view of the structure of the present invention;

[0021] Figure 3 for Figure 2 Sectional view of the structure at point AA;

[0022] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the connection structure between the limiting frame and the mounting sleeve of the present invention;

[0024] Figure 6 This is a schematic diagram of the connection structure between the mounting frame and the buckle plate of the present invention;

[0025] Figure 7 This is a schematic diagram of the limiting frame structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the hinged structure of the buckle plate and hoop plate of the present invention;

[0027] Figure 9This is a schematic diagram of the connection structure between the steel column and the steel column bracket of the present invention.

[0028] In the diagram: 1. Installation sleeve; 2. Steel column bracket; 3. Connecting plate; 4. Pad; 5. Through hole; 6. Tie rod; 7. Side groove; 8. Insertion hole; 9. Stirrup; 10. Notched groove; 11. Limiting frame; 12. Hoop plate; 13. Screw hole; 14. Hand-tightening screw; 15. Embedding groove; 16. Rubber clip; 17. Buckle plate; 18. Reinforcing block; 19. Hoop plate; 20. Bolt; 21. Reserved groove; 22. Splicing column; 23. Nut; 24. Steel column; 25. Steel-concrete longitudinal reinforcement. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1 to 9This invention provides a technical solution: a precast steel column corbel and steel-concrete beam joint, including an installation sleeve 1, which is fitted onto the body of the steel column corbel 2, which is installed on the body of the steel column 24. A connecting plate 3 is fixed to the other end of the installation sleeve 1. A pad 4 is provided on one side of the steel column 24. The pad 4 and the connecting plate 3 are symmetrically distributed about the steel column 24. Multiple perforations 5 are provided on the surfaces of the connecting plate 3, the pad 4, and the steel column 24. The perforations 5 on the surfaces of the connecting plate 3, the pad 4, and the steel column 24 are... A tie rod 6 passes through the steel column 24, and the connecting plate 3 and the pad 4 are fixed to both sides of the steel column 24 by the tie rod 6. The mounting sleeve 1 has side grooves 7 on both sides, and steel-concrete longitudinal reinforcement 25 is inserted into the side grooves 7. The surface of the steel column 24 has multiple insertion holes 8, and the insertion holes 8 correspond one-to-one with the side grooves 7. The steel-concrete longitudinal reinforcement 25 passes through the side grooves 7 and is inserted into the insertion holes 8. Multiple stirrups 9 are fixed to the ends of the steel-concrete longitudinal reinforcement 25. The length of the steel-concrete longitudinal reinforcement 25 extending out of the steel column 24 is greater than the length of the mounting sleeve 1. In use, the connecting plate 3 is pre-welded to one end of the steel column bracket 2. Then, the connecting plate 3 and the pad 4 are placed on both sides of the steel column 24. After the rod of the tie rod 6 passes through the connecting plate 3, the pad 4, and the through hole 5 on the surface of the steel column 24, the threaded structure is screwed onto both ends of the tie rod 6 and locked, thus fixing the connecting plate 3 and the pad 4 to the steel column 24. At this time, the steel column bracket 2 is suspended on one side of the steel column 24 to cooperate with the pouring and installation of the steel-concrete beam. One end of the steel-concrete longitudinal reinforcement 25 is inserted into the column body of the steel column 24, and at this time, one end of the steel-concrete longitudinal reinforcement 25 is inserted into the steel column 24, so that the cast steel-concrete beam distributes the load at the end to the steel column 24. Compared with the existing technology of directly binding the steel reinforcement frame on site, the installation sleeve 1 with the steel-concrete longitudinal reinforcement 25 is directly fitted onto the steel column bracket 2, which improves the on-site construction efficiency of the steel-concrete beam.

[0031] One end of the installation sleeve 1 is inserted with a limiting frame 11. A hoop piece 12 is integrally formed on the surface of the limiting frame 11. A rubber clip 16 is provided between the hoop piece 12 and the profiled steel concrete longitudinal bar 25. A notch 10 is formed at one end of the installation sleeve 1. The limiting frame 11 is inserted into the notch 10. Threaded holes 13 are formed on the top and bottom surfaces of the limiting frame 11 and the notch 10. The same hand-tightening screw 14 is screwed on the surfaces of the notch 10 and the limiting frame 11; the hoop piece 12 is in the shape of an arc-shaped piece, and the hoop piece 12 corresponds to the side groove 7 one by one. An embedding groove 15 is formed at one end of the hoop piece 12. The embedding groove 15 is in the shape of an arc-shaped groove. The rubber clip 16 is fixed in the embedding groove 15. The inner ring diameter of the rubber clip 16 is smaller than the inner diameter of the hoop piece 12. The rubber clip 16 is clamped between the hoop piece 12 and the profiled steel concrete longitudinal bar 25 to generate elastic deformation. After the steel column bracket 2 is installed on the steel column 24, multiple profiled steel concrete longitudinal bars 25 are inserted into the corresponding side grooves 7 one by one. Since one end of the profiled steel concrete longitudinal bar 25 is inserted into the steel column 24, the profiled steel concrete longitudinal bar 25 will not directly fall off. At this time, the limiting frame 11 is sleeved in the notch 10. At this time, the rubber clip 16 is clamped between the profiled steel concrete longitudinal bar 25 and the limiting frame 11. To a certain extent, elastic anti-drop clamping of the profiled steel concrete longitudinal bar 25 is achieved. Subsequently, the hand-tightening screw 14 is passed through the limiting frame 11 and screwed into the threaded hole 13 on the surface of the notch 10 to prevent the limiting frame 11 from falling off the notch 10.

[0032] Buckling plates 17 are fixed on both the top surface and the bottom surface of the installation sleeve 1. Hoop plates 19 are hinged at both ends of the buckling plates 17. The two hoop plates 19 are connected by bolts 20; the buckling plate 17 is in the shape of a "C"-shaped plate structure. A reinforcing block 18 is fixed on the surface of the buckling plate 17. One end of the reinforcing block 18 is fixed on the outer wall of the installation sleeve 1. The hoop plate 19 is hinged to the buckling plate 17 through a hinge. A bolt hole is formed at the end of the hoop plate 19 away from the buckling plate 17. The bolt 20 passes through the bolt hole. After the two hoop plates 19 are connected, the installation sleeve 1 is fixed on the steel column bracket 2 under the traction of the buckling plate 17 and the hoop plate 19. It should be noted that the hoop plate 19 has a certain toughness. In order to facilitate bending the hoop plate 19 to deform around the steel column 24 to open and remove the hoop plate 19.

[0033] Two reserved grooves 21 are formed on the surface of the buckling plate 17. The two reserved grooves 21 are symmetrically distributed with respect to the installation sleeve 1. Splicing columns 22 are fixed on the surfaces of the reserved grooves 21 and the connecting plate 3. The splicing column 22 is in the shape of a semi-cylinder with external threads. The external threads on the splicing columns 22 on the surfaces of the reserved grooves 21 and the connecting plate 3 are connected to form a stud. A nut 23 is sleeved on the stud; after the buckling plate 17 is buckled on one side of the steel column 24, the nut 23 is sleeved and screwed on the stud. At this time, the buckling plate 17 and the connecting plate 3 are fixed together, thereby improving the firmness of the installation sleeve 1 fixed on the steel column bracket 2.

[0034] Usage method of prefabricated profiled steel column bracket and profiled steel concrete beam joint: Weld the connecting plate 3 to one end of the profiled steel column bracket 2 in advance. Place the connecting plate 3 and the backing plate 4 on both sides of the steel column 24 respectively, ensuring that the multiple perforations 5 opened on the surfaces of the connecting plate 3, the backing plate 4 and the steel column 24 correspond to each other one by one. Pass the rod body of the tension bolt 6 through the perforations 5 on the surfaces of the connecting plate 3, the backing plate 4 and the steel column 24 in sequence. Set the screwing structure on both ends of the rod body of the tension bolt 6 and then lock it to fix the connecting plate 3 and the backing plate 4 on the steel column 24. At this time, the profiled steel column bracket 2 is suspended and installed on one side of the steel column 24, preparing for the pouring and installation of the subsequent profiled steel concrete beam. Insert multiple profiled steel concrete longitudinal bars 25 into the side grooves 7 opened on both sides of the installation sleeve 1 one by one. Since multiple jacks 8 corresponding to the side grooves 7 one by one are opened on the surface of the steel column 24, the profiled steel concrete longitudinal bars 25 pass through the side grooves 7 and then are inserted into the jacks 8, and multiple stirrups 9 are sleeved and fixed at the ends of the profiled steel concrete longitudinal bars 25. At the same time, ensure that the length of the profiled steel concrete longitudinal bars 25 extending out of the steel column 24 is greater than the length of the installation sleeve 1, so that the cast profiled steel concrete beam can distribute the load at the end to the steel column 24. A notch 10 is opened at one end of the installation sleeve 1, and the limiting frame 11 is inserted into the notch 10. A hoop piece 12 is integrally formed on the surface of the limiting frame 11. The hoop piece 12 is an arc-shaped piece and corresponds to the side groove 7 one by one. An installation groove 15 in the shape of an arc-shaped groove is opened at one end of the hoop piece 12, and the rubber clip 16 is fixed in the installation groove 15, and the inner ring diameter of the rubber clip 16 is smaller than the inner diameter of the hoop piece 12. At this time, the rubber clip 16 is clamped between the profiled steel concrete longitudinal bar 25 and the limiting frame 11, generating elastic deformation, and realizing the elastic anti-detachment clamping of the profiled steel concrete longitudinal bar 25 to a certain extent. Screwing holes 13 are opened on the top and bottom surfaces of the limiting frame 11 and the notch 10. Pass the hand-tightening screw 14 through the limiting frame 11 and then screw it into the screwing hole 13 on the surface of the notch 10 to prevent the limiting frame 11 from falling off the notch 10. Buckle plates 17 in the shape of a "C" - shaped plate structure are fixed on the top and bottom surfaces of the installation sleeve 1. A reinforcing block 18 is fixed on the surface of the buckle plate 17, and one end of the reinforcing block 18 is fixed on the outer wall of the installation sleeve 1. Hoop plates 19 are hinged at both ends of the buckle plate 17 through hinges, and bolt holes are opened at the ends of the hoop plates 19 far from the buckle plate 17. After passing the two hoop plates 19 around the steel column 24, connect them by passing the bolt 20 through the bolt holes. At this time, the installation sleeve 1 is fixed on the profiled steel column bracket 2 under the traction of the buckle plate 17 and the hoop plates 19. The hoop plate 19 has a certain toughness, which is convenient for bending the hoop plate 19 to deform and bypass the steel column 24 and then removing it after opening. Two reserved grooves 21 symmetrically distributed about the installation sleeve 1 are opened on the surface of the buckle plate 17. Splicing columns 22 are fixed on the surfaces of the reserved grooves 21 and the connecting plate 3. The splicing columns 22 are semi-cylinders with external threads. Make the external threads on the splicing columns 22 on the surfaces of the reserved grooves 21 and the connecting plate 3 connect to form a stud, and sleeve and screw the nut 23 on the stud. At this time, the buckle plate 17 and the connecting plate 3 are fixed together, further enhancing the firmness of the installation sleeve 1 fixed on the profiled steel column bracket 2.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precast steel column corbel and steel-concrete beam joint, comprising an installation sleeve (1), the installation sleeve (1) being fitted onto the rod of the steel column corbel (2), the steel column corbel (2) being installed on the column of the steel column (24), characterized in that: The mounting sleeve (1) has side grooves (7) on both sides. Steel-concrete longitudinal reinforcement (25) is inserted into the side grooves (7). One end of the steel-concrete longitudinal reinforcement (25) is inserted into the column body of the steel column (24). One end of the mounting sleeve (1) is inserted into a limit frame (11). The surface of the limit frame (11) is integrally formed with a hoop (12). A rubber clip (16) is provided between the hoop (12) and the steel-concrete longitudinal reinforcement (25). The top surface and the bottom surface of the mounting sleeve (1) are both fixed with a buckle plate (17). Both ends of the buckle plate (17) are hinged with a hoop plate (19). The two hoop plates (19) are connected by bolts (20). The other end of the mounting sleeve (1) is fixed with a connecting plate (3). A pad (4) is provided on one side of the steel column (24). The pad (4) and the connecting plate (3) are symmetrically distributed about the steel column (24). Multiple through holes (5) are opened on the surfaces of the connecting plate (3), the pad (4) and the steel column (24). The through holes (5) on the surfaces of the connecting plate (3), the pad (4) and the steel column (24) are penetrated by the tie rod (6). The connecting plate (3) and the pad (4) are fixed on both sides of the steel column (24) by the tie rod (6). After the rod of the tie rod 6 passes through the through holes (5) on the surfaces of the connecting plate 3, the pad 4 and the steel column 24, the screw connection structure is screwed onto both ends of the rod of the tie rod 6 and locked, so as to fix the connecting plate 3 and the pad 4 on the steel column 24. The surface of the steel column (24) is provided with multiple insertion holes (8), and the insertion holes (8) and the side grooves (7) correspond one to one. The steel-concrete longitudinal reinforcement (25) passes through the side grooves (7) and is inserted into the insertion holes (8). Multiple stirrups (9) are sleeved and fixed at the ends of the steel-concrete longitudinal reinforcement (25).

2. The precast steel column corbel and steel-concrete beam joint according to claim 1, characterized in that: The mounting sleeve (1) has a notch (10) at one end, and the limiting frame (11) is inserted into the notch (10). The top and bottom surfaces of the limiting frame (11) and the notch (10) are provided with screw holes (13). The surfaces of the notch (10) and the limiting frame (11) are screwed with the same hand-tightening screw (14). After the hand-tightening screw (14) passes through the limiting frame (11), it is screwed into the screw hole (13) on the surface of the notch (10) to prevent the limiting frame (11) from falling off the notch (10).

3. The precast steel column corbel and steel-concrete beam joint according to claim 1, characterized in that: The hoop (12) is an arc-shaped piece, and the hoop (12) and the side groove (7) correspond one-to-one. One end of the hoop (12) is provided with an insert groove (15), which is an arc-shaped groove. The rubber clip (16) is fixed in the insert groove (15). The inner diameter of the rubber clip (16) is smaller than the inner diameter of the hoop (12). The rubber clip (16) is clamped between the hoop (12) and the steel-concrete longitudinal reinforcement (25) to produce elastic deformation.

4. The precast steel column corbel and steel-concrete beam joint according to claim 1, characterized in that: The length of the steel-concrete longitudinal reinforcement (25) extending out of the steel column (24) is greater than the length of the mounting sleeve (1).

5. The precast steel column corbel and steel-concrete beam joint according to claim 1, characterized in that: The buckle plate (17) is in a "U"-shaped plate structure. A reinforcing block (18) is fixed on the surface of the buckle plate (17). One end of the reinforcing block (18) is fixed on the outer wall of the mounting sleeve (1). The hoop plate (19) is hinged to the buckle plate (17) through a hinge. A bolt hole is formed at one end of the hoop plate (19) away from the buckle plate (17), and a bolt (20) penetrates through the bolt hole.

6. The precast steel column corbel and steel-concrete beam joint according to claim 1, characterized in that: Two reserved grooves (21) are formed on the surface of the buckle plate (17). The two reserved grooves (21) are symmetrically distributed with respect to the mounting sleeve (1). Splicing columns (22) are fixed on the surfaces of both the reserved grooves (21) and the connecting plate (3). The splicing columns (22) are semi-cylinders with external threads. The external threads on the splicing columns (22) on the surfaces of the reserved grooves (21) and the connecting plate (3) are joined to form a stud, and a nut (23) is sleeved on the stud.

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