A prefabricated prestressed beam-column joint

Abstract

This utility model provides a prefabricated prestressed beam-column joint, relating to the technical field of beam-column joints. It includes a main beam-column, an inner frame, and an outer frame. Vertical plates are fixed to both the upper and lower ends of the main beam-column, and slots are provided on both the left and right sides of the main beam-column. An inner frame is fitted into each slot, and an outer frame is fixed to the outside of the inner frame. The inner and outer frames are interconnected, and the centers of the main beam-column, inner frame, and outer frame are all located on the same axis. An outer plate is fixed to the outer end of the side fixing plate, and multiple sets of second external screw holes are provided on the outer plate. This utility model facilitates quick and easy assembly, and is further reinforced by fastening bolts. It allows for rapid positioning and assembly of the beam-column joint, ensuring convenient and stable on-site assembly and a tighter, more secure connection with the beam-column joint. It also facilitates disassembly, inspection, maintenance, or replacement later, making it more efficient, flexible, and practical.

Description

Technical Field

[0001] This utility model relates to the field of beam-column joint technology, specifically to a prefabricated prestressed beam-column joint. Background Technology

[0002] Frame structures, with their rigid beam-column joints, possess significant load-bearing capacity and lateral stiffness, making them typical multi-story and high-rise structural systems. However, rigid joints reduce the structure's energy dissipation capacity under dynamic loads such as earthquakes and wind, making it prone to brittle failure during strong earthquakes or winds. Conventional beam-column joints are mostly fixed using welding.

[0003] The description of a locally prestressed prefabricated energy-dissipating beam-column joint structure in the prior art (publication number CN212656404U) mentions that "the main component is movably connected to the crossbeam through a connecting mechanism. The main component includes a main column, a bearing plate and a crossbeam are fixedly installed on one side of the main column, and the end of the bearing plate away from the main column extends into the interior of the crossbeam; the connecting mechanism includes angle steel and metal energy-dissipating rods. An angle steel is movably installed on one side of the main column, and there are two angle steels. Friction dampers are movably installed on the opposite surfaces of the two angle steels. The top and bottom of the crossbeam overlap with the opposite surfaces of the two friction dampers, and the interiors of the angle steel, crossbeam and bearing plate are movably sleeved with the surface of the metal energy-dissipating rods." However, the beam-column joint structure in the prior art is mainly set on the outer surface of the beam and column, and the connection with the beam and column body is not firm. Moreover, the connection cannot be positioned and plugged in for assembly, which is not efficient, stable and practical. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a prefabricated prestressed beam-column joint is provided to solve the problems of existing beam-column joint structures being mainly set on the outer surface of beams and columns, not being firmly connected to the beam-column body, and not being able to be positioned and plugged into the connection for assembly, which is not efficient, stable and practical.

[0005] To achieve the above objectives, a prefabricated prestressed beam-column joint is provided, comprising a main beam-column, an inner frame, and an outer frame. Vertical plates are fixed at both the upper and lower ends of the main beam-column, and slots are provided on both the left and right sides of the main beam-column. The inner frame is fitted inside the slots, and the outer frame is fixed to the outside of the inner frame. The inner frame and the outer frame are connected and connected, and the centers of the main beam-column, the inner frame, and the outer frame are all located on the same axis.

[0006] Furthermore, the bottom of the card slot is provided with multiple sets of first internal threaded holes, and the upper and lower parts of the card slot are provided with multiple sets of second internal threaded holes.

[0007] Furthermore, the inner frame is provided with side fixing plates on both the upper and lower sides, and an inner fixing plate is fixed between the two sets of side fixing plates, and multiple sets of first external screw holes are provided on the inner fixing plate.

[0008] Furthermore, an outer sleeve plate is fixed to the outer end of the side fixing plate, and multiple sets of second external screw holes are provided on the outer sleeve plate.

[0009] Furthermore, both the inner and outer frames are made of cast steel, and the outer surfaces of both the inner and outer frames are smoothly galvanized. The inner frame adopts a rectangular interlocking structure, and the outer frame adopts a trapezoidal interlocking structure.

[0010] Furthermore, a second fastening bolt is installed between the inner fixing plate on the inner sleeve frame and the first internal threaded hole in the slot, and a first fastening bolt is installed between the second external threaded hole on the inner sleeve frame and the second internal threaded hole on the slot, and the inner sleeve frame and the slot are detachably connected.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. The first and second internal threaded holes in this utility model are designed to secure the inner frame with bolts, making the installation more stable, secure, safe, and reliable. Furthermore, the main beam and column have symmetrical slots on both sides, facilitating symmetrical assembly of the prestressed beam and column joint structure, making it more efficient and practical.

[0013] 2. In this utility model, the side fixing plate and the inner fixing plate inside the inner frame are both smooth and straight, which makes the horizontal column insertion that needs to be assembled safer and more stable. Moreover, the outer plate is designed so that the upper and lower parts of the inner frame fit more closely to the upper and lower parts of the outer side of the slot, and the larger the contact area when assembled together, the safer and more stable it is.

[0014] 3. In this utility model, the inner frame and the outer frame are connected, which makes it easier to insert the horizontal column connectors that need to be connected on the outside more firmly and less likely to fall off. In addition, the inner frame and the outer frame are made of stronger and more durable materials, resulting in a longer service life.

[0015] 4. This utility model uses a first fastening bolt and a second fastening bolt to fasten the assembly between the inner sleeve frame and the retaining slot. Moreover, both the first fastening bolt and the second fastening bolt are easy to disassemble, making it easy to remove the inner sleeve frame from the retaining slot. This makes it more convenient for subsequent inspection, maintenance or replacement, and is more flexible and practical. Attached Figure Description

[0016] Figure 1 This is a right-side view of an embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the main beam and column structure of an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the structural arrangement between the inner frame and the inner frame in an embodiment of the present utility model.

[0020] In the diagram: 1. Main beam / column; 10. First internal threaded hole; 11. Slot; 12. Second internal threaded hole; 13. Vertical plate; 2. Inner frame; 20. Side fixing plate; 21. First external threaded hole; 22. Inner fixing plate; 23. Outer plate; 24. Second external threaded hole; 3. Outer frame; 4. First fastening bolt; 5. Second fastening bolt. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details, such as particular system structures and technologies, are provided to facilitate a more thorough understanding of the embodiments of the present utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0022] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] Figure 1 This is a right-side view of an embodiment of the present utility model. Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present utility model. Figure 3 This is a schematic diagram of the main beam and column structure of an embodiment of the present utility model. Figure 4 This is a schematic diagram of the structural arrangement between the inner frame and the inner frame in an embodiment of the present utility model.

[0024] Reference Figures 1 to 4 As shown, this utility model provides a prefabricated prestressed beam-column joint, including a main beam-column 1, an inner frame 2, and an outer frame 3. The upper and lower ends of the main beam-column 1 are fixed with vertical plates 13, and the left and right sides of the main beam-column 1 are provided with slots 11. The inner frame 2 is fitted inside the slots 11, and the outer frame 3 is fixed to the outside of the inner frame 2. The inner frame 2 and the outer frame 3 are connected and connected, and the centers of the main beam-column 1, the inner frame 2, and the outer frame 3 are all located on the same axis.

[0025] In this embodiment, the inner bottom of the slot 11 is provided with multiple sets of first internal threaded holes 10, and the upper and lower parts of the slot 11 are provided with multiple sets of second internal threaded holes 12.

[0026] As a preferred embodiment, the first internal threaded hole 10 and the second internal threaded hole 12 in this utility model are provided to secure the inner frame 2 with bolts, making the installation more stable, firm, safe and reliable. In addition, the main beam and column 1 has symmetrical slots 11 on both sides, which facilitates the symmetrical assembly of the prestressed beam and column joint structure, making it more efficient and practical.

[0027] In this embodiment, side fixing plates 20 are provided on both the upper and lower sides of the inner frame 2, and an inner fixing plate 22 is fixed between the two sets of side fixing plates 20. The inner fixing plate 22 has multiple sets of first external screw holes 21. An outer sleeve plate 23 is fixed to the outer end of the side fixing plate 20, and multiple sets of second external screw holes 24 are provided on the outer sleeve plate 23.

[0028] As a preferred embodiment, the side fixing plate 20 and the inner fixing plate 22 inside the inner frame 2 are both smooth and straight, making the horizontal column insertion that needs to be assembled safer and more stable. Moreover, the outer plate 23 is designed so that the upper and lower parts of the inner frame 2 fit more closely to the upper and lower parts of the outer side of the slot 11, and the larger the contact area when assembled together, the tighter and more stable it is.

[0029] In this embodiment, both the inner frame 2 and the outer frame 3 are made of cast steel, and the outer surfaces of both the inner frame 2 and the outer frame 3 are smooth and galvanized. The inner frame 2 adopts a rectangular inlay structure, and the outer frame 3 adopts a trapezoidal inlay structure.

[0030] As a preferred embodiment, the inner frame 2 and the outer frame 3 are connected, which makes it easier for the horizontal column connectors that need to be inserted on the outside to be more firmly inserted and less likely to come loose. In addition, the inner frame 2 and the outer frame 3 are made of stronger and more durable materials, resulting in a longer service life.

[0031] In this embodiment, a second fastening bolt 5 is installed between the inner fixing plate 22 on the inner frame 2 and the first internal threaded hole 10 in the slot 11, and a first fastening bolt 4 is installed between the second external threaded hole 24 on the inner frame 2 and the second internal threaded hole 12 on the slot 11, and the inner frame 2 and the slot 11 are connected separately.

[0032] As a preferred embodiment, the present invention uses the first fastening bolt 4 and the second fastening bolt 5 to fasten the assembly between the inner sleeve frame 2 and the slot 11. Moreover, the first fastening bolt 4 and the second fastening bolt 5 are easy to disassemble, so that the inner sleeve frame 2 can be easily removed from the slot 11, which is more convenient for subsequent inspection, maintenance or replacement, and is more flexible and practical.

[0033] This invention effectively solves the problems in the existing technology where beam-column joint structures are mainly located on the outer surface of beams and columns, are not firmly connected to the beam-column body, and cannot be positioned and plugged into for assembly, resulting in inefficiency, instability, and lack of practicality. This invention facilitates quick and easy fitting and assembly, and is further reinforced by fastening bolts, making it convenient for rapid positioning and assembly of beam-column joints. Not only is on-site assembly convenient and stable, but the assembly between beam-column joints is also tighter and more secure. It also facilitates disassembly, inspection, maintenance, or replacement in the future, making it more efficient, flexible, and practical.

[0034] The above embodiments are used to explain and illustrate the present utility model, and not to limit the utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims should be included within the protection scope of the present utility model.

Claims

1. A prefabricated prestressed beam-column joint, characterized in that: The main beam (1), inner frame (2) and outer frame (3) are included. The upper and lower ends of the main beam (1) are fixed with vertical plates (13), and the left and right sides of the main beam (1) are provided with slots (11). The inner frame (2) is fitted inside the slots (11), and the outer frame (3) is fixed outside the inner frame (2). The inner frame (2) and the outer frame (3) are connected and connected. The centers of the main beam (1), inner frame (2) and outer frame (3) are all located on the same axis.

2. The prefabricated prestressed beam-column joint according to claim 1, characterized in that, The inner bottom of the slot (11) is provided with multiple sets of first internal threaded holes (10), and the upper and lower parts of the slot (11) are provided with multiple sets of second internal threaded holes (12).

3. The prefabricated prestressed beam-column joint according to claim 1, characterized in that, The inner frame (2) is provided with side fixing plates (20) on both the upper and lower sides, and an inner fixing plate (22) is fixed between the two sets of side fixing plates (20), and multiple sets of first external screw holes (21) are opened on the inner fixing plate (22).

4. A prefabricated prestressed beam-column joint according to claim 3, characterized in that, The outer end of the side fixing plate (20) is fixed with an outer sleeve plate (23), and the outer sleeve plate (23) has multiple sets of second external screw holes (24).

5. A prefabricated prestressed beam-column joint according to claim 1, characterized in that, The inner frame (2) and the outer frame (3) are both made of cast steel, and the outer surfaces of the inner frame (2) and the outer frame (3) are both smooth and galvanized. The inner frame (2) adopts a rectangular inlay structure, and the outer frame (3) adopts a trapezoidal inlay structure.

6. A prefabricated prestressed beam-column joint according to claim 1, characterized in that, A second fastening bolt (5) is installed between the inner fixing plate (22) on the inner frame (2) and the first internal threaded hole (10) in the slot (11), and a first fastening bolt (4) is installed between the second external threaded hole (24) on the inner frame (2) and the second internal threaded hole (12) on the slot (11), and the inner frame (2) and the slot (11) are connected separately.

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