High-stability assembled concrete connecting joint structure

Abstract

This utility model discloses a highly stable prefabricated concrete connection node structure, belonging to the field of prefabricated concrete frame structure construction technology. The connection node structure body includes a frame column, and a prefabricated frame beam is fixedly installed on the surface of the frame column. A steel cage is set inside the prefabricated frame beam, and a connecting component is fixedly connected to the surface of the steel cage. This highly stable prefabricated concrete connection node structure adopts normal setting of the upper steel bars of the prefabricated frame beam, and the lower steel bars of the beam are connected by connecting steel bars or beam shoe bolts. No steel bars extend beyond the beam end of the entire prefabricated beam, which solves the problem of steel bar collision between beams and columns in prefabricated frame structures. It is easy to construct, easy to control the quality, has good seismic performance and durability, enhances the safety and stability of the structure, reduces dependence on the construction environment, thereby shortening the construction period and reducing additional costs caused by uncontrollable factors such as weather.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated concrete frame structure construction technology, and more specifically, to a highly stable prefabricated concrete connection node structure. Background Technology

[0002] With the continuous innovation in the construction industry, prefabricated buildings are gradually becoming the mainstream trend of future construction development due to their significant advantages such as high efficiency and environmental protection. This construction model involves prefabricating a large number of building components in factories and then transporting them to the construction site for assembly, which greatly improves the industrialization of construction.

[0003] Currently, the connection node technology of prefabricated concrete frame structures has become a key bottleneck restricting its further development. Traditional connection nodes face many challenges during construction, such as the complexity of traditional welding joints, the need for specialized welding equipment and technicians, the significant impact of environmental factors on welding quality, the difficulty in guaranteeing connection reliability, and the complexity of construction processes. These problems seriously affect the overall quality and widespread application of prefabricated buildings. Therefore, this solution focuses on the innovative design of efficient connection nodes for prefabricated concrete frame structures, aiming to break through existing technological bottlenecks and improve the performance of connection nodes. By optimizing the design of connection nodes, it is possible to effectively improve engineering construction efficiency, reduce construction cycle, and enhance the safety and stability of the structure, providing strong technical support for the widespread application of prefabricated buildings. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a highly stable prefabricated concrete connection node structure. This highly stable prefabricated concrete connection node structure adopts a prefabricated frame beam with normal upper reinforcement, and the lower reinforcement of the beam is connected by connecting reinforcement or beam shoe bolts. No reinforcement extends beyond the beam end of the entire prefabricated beam, solving the problem of beam-column reinforcement collision in prefabricated frame structures. It is easy to construct, easy to control the quality, has good seismic performance and durability, enhances the safety and stability of the structure, reduces dependence on the construction environment, thereby shortening the construction period and reducing additional costs caused by uncontrollable factors such as weather.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A highly stable prefabricated concrete connection node structure includes a connection node structure body, which comprises a frame column. A prefabricated frame beam is fixedly installed on the surface of the frame column. A reinforcing cage is installed inside the prefabricated frame beam. Connecting components are fixedly connected to the surface of the reinforcing cage. The surface of the reinforcing cage, the prefabricated frame beam, and the frame column is fixedly bonded to the cast-in-place frame beam with cast-in-place concrete. This highly stable prefabricated concrete connection node structure uses normal upper reinforcing bars in the prefabricated frame beam, while the lower reinforcing bars are connected using connecting reinforcing bars or beam shoe bolts. No reinforcing bars extend beyond the beam ends in the prefabricated beam section, solving the problem of reinforcing bar collision between beams and columns in prefabricated frame structures. Construction is simple, quality is easy to control, and it has good seismic performance and durability, enhancing the safety and stability of the structure. It reduces dependence on the construction environment, thereby shortening the construction period and reducing additional costs caused by uncontrollable factors such as weather.

[0007] Furthermore, the connecting assembly includes symmetrical beam shoes, the inner surface of which is movably connected to the surface of the frame column. The surface of the beam shoes has connecting holes, and connecting steel bars are movably connected to the inner wall of the connecting holes. The beam shoes facilitate the increase of the strength of the connection and also facilitate the installation of the connecting steel bars.

[0008] Furthermore, the steel cage includes load-bearing longitudinal bars and connecting longitudinal bars, and steel rings are fixedly connected to the surfaces of the load-bearing longitudinal bars and connecting longitudinal bars. The number of connecting longitudinal bars is three. The load-bearing longitudinal bars can increase the support strength of the upper part of the frame beam.

[0009] Furthermore, a connecting rod is fixedly connected to the inner wall of the reinforcing ring. The connecting rod and the reinforcing ring enclose a limiting hole. The connecting reinforcing bar is located within the limiting hole and has a limiting function. Moreover, the connecting reinforcing bar can increase the support strength of the lower part of the frame beam.

[0010] Furthermore, a baffle is fixedly connected to the surface of the stressed longitudinal reinforcement, one end of which is fixedly connected to the surface of the reinforcing ring. The baffle has a limiting function and can also increase the strength of the stressed longitudinal reinforcement.

[0011] Furthermore, a detachable support component is provided below the connection between the frame column and the prefabricated frame beam. The support component is a steel bracket, which is fastened to each other with bolts. It serves as a support point during the construction of the prefabricated frame beam. After the beam-column joint is poured and reaches the design strength, the steel bracket can be removed and reused.

[0012] Furthermore, the surface of the beam shoe is fixedly connected to the end face of the connecting longitudinal reinforcement, which can prevent the precast part of the entire precast beam from having no reinforcement extending out of the beam end, thus solving the problem of beam-column reinforcement collision in precast frame structures.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] (1) This scheme adopts the normal setting of the upper reinforcement of the precast frame beam, and the lower reinforcement of the beam is connected by connecting reinforcement or beam shoe bolts. The precast part of the whole precast beam has no reinforcement extending out of the beam end, which solves the problem of beam-column reinforcement collision in precast frame structure. The construction is simple, the quality is easy to control, and it has good seismic performance and durability. It enhances the safety and stability of the structure, reduces the dependence on the construction environment, thereby shortening the construction period and reducing the additional costs caused by uncontrollable factors such as weather. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0016] Figure 2 for Figure 1 Side view of the steel cage and beam shoe installation structure;

[0017] Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model;

[0018] Figure 4 for Figure 3 Side view of the installation structure of the steel cage and beam segment end plate.

[0019] Explanation of the labels in the diagram:

[0020] 1. Connecting node structure body; 2. Frame column; 3. Precast frame beam; 4. Cast-in-place frame beam; 5. Reinforcing cage; 51. Load-bearing longitudinal reinforcement; 52. Connecting longitudinal reinforcement; 53. Reinforcing ring; 54. Connecting rod; 55. Limiting hole; 6. Beam shoe; 61. Connecting hole; 7. Connecting reinforcement; 8. Beam segment end plate; 81. Connecting bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figure 1 and 2The high-stability prefabricated concrete connection node structure includes a connection node structure body 1, which includes frame columns 2. The connection method of the frame columns 2, prefabricated frame beams 3, and cast-in-place frame beams 4 is a prefabricated wet connection. Prefabricated wet connection refers to the connection method in which prefabricated beams and columns are connected or anchored at the joint with steel bars, and then connected to form an integral frame by cast-in-place concrete. Because it is necessary to connect by cast-in-place concrete, it is called wet connection. This method makes the connection part have high strength and can form an integral performance similar to or the same as the cast-in-place concrete structure. It is made of reinforced concrete. The prefabricated frame beams 3 are fixedly installed on the surface of the frame columns 2. The prefabricated frame beams 3 are made of reinforced concrete. The prefabricated frame beams 3 and the cast-in-place frame beams 4 are combined to form a frame beam. The upper steel bars of the prefabricated frame beams 3 are normally set. The interior of the prefabricated frame beams 3 is equipped with a steel cage 5. The steel cage 5 is a prior art. The surface of the steel cage 5 is fixedly connected with connecting components. The surface of the steel cage 5, the prefabricated frame beams 3, and the frame columns 2 is fixedly bonded to the cast-in-place frame beams 4 by cast-in-place concrete.

[0024] The connecting components include symmetrical beam shoes 6, the inner surface of which is movably connected to the surface of the frame column 2. The surface of the beam shoes 6 has connecting holes 61, and the inner wall of the connecting holes 61 is movably connected to connecting steel bars 7. The beam shoes 6 facilitate the increase of the strength of the connection and the installation of the connecting steel bars 7. A detachable support component is provided below the connection between the frame column 2 and the precast part of the frame beam 3. The support component is a steel bracket, which is fastened with bolts to serve as a support point during the construction of the precast frame beam. After the beam-column joint is poured and reaches the design strength, the steel bracket can be removed and reused. The surface of the beam shoes 6 is fixedly connected to the end face of the connecting longitudinal reinforcement 52, which can prevent the precast part of the entire precast beam from having no steel bars extending out of the beam end, thus solving the problem of steel bar collision between beams and columns in precast frame structures.

[0025] The reinforcing cage 5 includes longitudinal reinforcement bars 51 and connecting longitudinal reinforcement bars 52. Reinforcing rings 53 are fixedly connected to the surfaces of the longitudinal reinforcement bars 51 and 52. There are three connecting longitudinal reinforcement bars 52. The longitudinal reinforcement bars 51 can increase the support strength of the upper part of the frame beam. Connecting rods 54 are fixedly connected to the inner wall of the reinforcing rings 53. The connecting rods 54 and the reinforcing rings 53 enclose a limiting hole 55. The connecting reinforcing bars 7 are located within the limiting hole 55, serving a limiting function. Furthermore, the connecting reinforcing bars 7 can increase the support strength of the lower part of the frame beam. A baffle is fixedly connected to the surface of the longitudinal reinforcement bars 51. One end of the baffle is fixedly connected to the surface of the reinforcing rings 53. The baffle serves a limiting function and can also increase the strength of the longitudinal reinforcement bars 51.

[0026] Example 2

[0027] Please see Figure 2 and 3The high-stability prefabricated concrete connection node structure includes a connection node structure body 1, which includes frame columns 2. The connection method of the frame columns 2, prefabricated frame beams 3, and cast-in-place frame beams 4 is a prefabricated wet connection. Prefabricated wet connection refers to the connection method in which prefabricated beams and columns are connected or anchored at the joint with steel bars, and then connected to form an integral frame by cast-in-place concrete. Because it is necessary to connect by cast-in-place concrete, it is called wet connection. This method makes the connection part have high strength and can form an integral performance similar to or the same as the cast-in-place concrete structure. It is made of reinforced concrete. The prefabricated frame beams 3 are fixedly installed on the surface of the frame columns 2. The prefabricated frame beams 3 are made of reinforced concrete. The prefabricated frame beams 3 and the cast-in-place frame beams 4 are combined to form a frame beam. The upper steel bars of the prefabricated frame beams 3 are normally set. The interior of the prefabricated frame beams 3 is equipped with a steel cage 5. The steel cage 5 is a prior art. The surface of the steel cage 5 is fixedly connected with connecting components. The surface of the steel cage 5, the prefabricated frame beams 3, and the frame columns 2 is fixedly bonded to the cast-in-place frame beams 4 by cast-in-place concrete.

[0028] The connecting components include symmetrical beam shoes 6, whose inner surfaces are movably connected to the surface of the frame column 2. Beam segment end plates 8 are fixedly connected to the surface of the beam shoes 6, and connecting bolts 81 are movably connected to the surface of the beam segment end plates 8. The beam shoes 6 and beam segment end plates 8 are fastened by the connecting bolts 81, which facilitates the increase of the connection strength and the assembly of the frame column 2 and the precast frame beam 3. A detachable support component is provided below the connection between the frame column 2 and the precast frame beam 3. The support component is a steel bracket, which is fastened to each other with bolts. It serves as a support point during the construction of the precast frame beam. After the beam-column joint is poured and reaches the design strength, the steel bracket can be removed and reused. The surface of the beam shoes 6 is fixedly connected to the end face of the connecting longitudinal reinforcement 52, which can prevent the precast part of the entire precast beam from having no reinforcement extending out of the beam end, thus solving the problem of beam-column reinforcement collision in precast frame structures.

[0029] The reinforcing cage 5 includes longitudinal reinforcement bars 51 and connecting longitudinal reinforcement bars 52. The surfaces of the longitudinal reinforcement bars 51 and the connecting longitudinal reinforcement bars 52 are fixedly connected with reinforcing rings 53. The number of connecting longitudinal reinforcement bars 52 is three. The longitudinal reinforcement bars 51 can increase the support strength of the upper part of the frame beam. The surfaces of the longitudinal reinforcement bars 51 are fixedly connected with baffles. One end of the baffle is fixedly connected to the surface of the reinforcing rings 53. The baffles have a limiting function and can also increase the strength of the longitudinal reinforcement bars 51.

[0030] During construction, this highly stable prefabricated concrete connection node structure first assembles the prefabricated frame beam 3 and frame column 2 using connecting steel bars 7 or connecting bolts 81. Then, a detachable steel bracket is installed below the connection between the frame column 2 and the prefabricated frame beam 3. Next, the cast-in-place frame beam 4 is formed by pouring concrete. After the cast-in-place frame beam 4 solidifies, the frame column 2 and the prefabricated frame beam 3 are connected as a whole to complete the assembly. The upper reinforcement of the prefabricated frame beam is set normally, while the lower reinforcement uses connecting steel bars 7 or connecting bolts 81. No steel bars extend beyond the beam end of the entire prefabricated beam, solving the problem of steel bar collision between beams and columns in prefabricated frame structures. The construction is simple, the quality is easy to control, and it has good seismic performance and durability, enhancing the safety and stability of the structure, reducing dependence on the construction environment, thereby shortening the construction period and reducing additional costs caused by uncontrollable factors such as weather.

[0031] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A highly stable prefabricated concrete connection node structure, comprising the connection node structure body (1), characterized in that: The main body (1) of the connecting node structure includes a frame column (2), a precast frame beam part (3) is fixedly installed on the surface of the frame column (2), a steel cage (5) is provided inside the precast frame beam part (3), a connecting component is fixedly connected to the surface of the steel cage (5), and the surface of the steel cage (5), the precast frame beam part (3) and the frame column (2) is fixedly bonded to the cast-in-place frame beam part (4) by cast-in-place concrete.

2. The highly stable prefabricated concrete connection node structure according to claim 1, characterized in that: The connecting assembly includes symmetrical beam shoes (6), the inner surface of which is movably connected to the surface of the frame column (2), and the surface of the beam shoes (6) has a connecting hole (61), the inner wall of which is movably connected to a connecting steel bar (7).

3. The highly stable prefabricated concrete connection node structure according to claim 2, characterized in that: The steel cage (5) includes a stressed longitudinal bar (51) and a connecting longitudinal bar (52). The surfaces of the stressed longitudinal bar (51) and the connecting longitudinal bar (52) are fixedly connected with steel rings (53). The number of connecting longitudinal bars (52) is three.

4. The highly stable prefabricated concrete connection node structure according to claim 3, characterized in that: A connecting rod (54) is fixedly connected to the inner wall of the reinforcing ring (53). The connecting rod (54) and the reinforcing ring (53) enclose a limiting hole (55), and the connecting reinforcing bar (7) is located inside the limiting hole (55).

5. The highly stable prefabricated concrete connection node structure according to claim 3, characterized in that: A baffle is fixedly connected to the surface of the stressed longitudinal reinforcement (51), and one end of the baffle is fixedly connected to the surface of the reinforcing ring (53).

6. The highly stable prefabricated concrete connection node structure according to claim 1, characterized in that: A detachable support assembly is provided below the connection between the frame column (2) and the prefabricated frame beam (3), and the support assembly is a steel bracket.

7. The highly stable prefabricated concrete connection node structure according to claim 2, characterized in that: The surface of the beam shoe (6) is fixedly connected to the end face of the connecting longitudinal reinforcement (52).

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