Fabricated building connection node structure

By using a stable frame structure of longitudinal support columns and I-beams and bolted connections in prefabricated buildings, the problems of difficult installation and insufficient stability of connection nodes in traditional prefabricated buildings are solved, achieving the effects of simplifying the construction process and improving structural stability.

CN224281618UActive Publication Date: 2026-05-26史斌
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
史斌
Filing Date
2025-07-03
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional prefabricated building connection nodes suffer from installation difficulties and poor stability, affecting construction efficiency and the overall structural safety of the building.

Method used

The system employs a robust frame structure with longitudinal support columns and I-beams, combined with bolted connections and reinforcement structures. The design of the mounting plate and the I-beams, along with multiple fastening methods, enhances the connection strength and stability.

Benefits of technology

It simplifies the on-site assembly process, improves construction efficiency, enhances the stability of nodes under vertical and lateral loads, and ensures the long-term safe use of the building.

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Abstract

The utility model relates to the technical field of buildings, in particular to an assembly type building connecting joint structure which comprises a longitudinal supporting column, I-shaped beams are arranged on the four side surfaces of the longitudinal supporting column respectively, mounting plates are arranged on the connecting faces of the I-shaped beams and the longitudinal supporting column, the lower end of the longitudinal supporting column is fixedly connected with a base cross beam, and the base cross beam is fixedly connected with a base. Reinforcing structures are arranged on the surfaces of the four sides of the base cross beam, and mounting grooves are formed in the I-shaped beams. Through the design of the mounting plates, the I-shaped beams and the longitudinal supporting columns, the on-site assembly process is greatly simplified, the construction difficulty is reduced, the construction efficiency is improved, the assembly is simple during use, meanwhile, the stability is improved, the construction efficiency is improved, and through the arrangement of the reinforcing structures and a stable frame structure formed by the I-shaped beams and the longitudinal supporting columns, the construction efficiency is improved. The stability of the joint under the action of vertical and lateral loads is improved in all directions, and looseness and deformation are effectively prevented.
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Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a connection node structure for prefabricated buildings. Background Technology

[0002] With the rapid development of industrialized construction, prefabricated buildings have been widely used due to their advantages such as high construction efficiency, strong quality control, energy saving, and environmental protection. However, the connection nodes of prefabricated buildings have always been a key factor affecting their overall performance.

[0003] The inventors discovered in daily life that traditional connection nodes have many drawbacks. For example, the connection methods at the nodes are often quite complex, making on-site assembly and construction difficult. It requires professional technicians to spend a lot of time performing precise operations, which not only prolongs the construction period but also easily leads to quality problems due to human error. Moreover, some existing connection nodes are not very stable when subjected to vertical and lateral loads, and are prone to loosening and deformation after long-term use, which seriously affects the overall structural safety of the building. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of difficult installation and poor stability in the existing technology, and to propose a prefabricated building connection node structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a prefabricated building connection node structure, including a longitudinal support column, with I-beams respectively provided on the four sides of the longitudinal support column, and mounting plates provided on the connection surfaces of the I-beams and the longitudinal support column, with a base beam fixedly connected to the lower end of the longitudinal support column, and reinforcement structures provided on the four sides of the base beam, with mounting grooves opened inside the I-beams, and the mounting plate including a right-angle mounting block, with a connecting plate provided inside the right-angle mounting block, and the connecting plate fitting into the mounting groove.

[0006] Furthermore, the I-beam includes a first I-beam, a second I-beam, a third I-beam, and a fourth I-beam. The first I-beam is located on one side of the longitudinal support column, the second I-beam is located on the other side of the longitudinal support column, the third I-beam is symmetrically distributed with the first I-beam, the fourth I-beam is symmetrically distributed with the first I-beam, the first I-beam and the second I-beam are distributed at right angles, the first I-beam and the third I-beam are distributed in a straight line, and the third I-beam and the fourth I-beam are distributed at right angles, so that the longitudinal support column and the I-beam form a stable three-dimensional frame structure, effectively bearing the building load from multiple directions and enhancing the overall structural stability.

[0007] Furthermore, the surface of the right-angle mounting block is provided with connecting holes, and bolts are fixedly connected to the sides of the longitudinal support column. The bolts pass through the connecting holes, and a nut is threaded to the end of the bolt away from the longitudinal support column. The mounting plate and the longitudinal support column are quickly and reliably fastened by the bolt and nut connection, which facilitates on-site assembly operations.

[0008] Furthermore, the upper surface of the I-beam is provided with threaded holes, and the upper surface of the right-angle mounting block is provided with connecting holes. The positions of the threaded holes and connecting holes correspond to each other, and there are several threaded holes and connecting holes. The threaded holes and connecting holes are connected through the thread of the fixing bolt, which further strengthens the connection strength between the I-beam and the mounting plate. The multiple fastening methods work together to prevent the nodes from loosening or shifting during the stress process, ensuring the long-term stability of the structure.

[0009] Furthermore, the reinforcement structure includes a support block and a connecting plate. The support block is fixedly connected to the four sides of the base beam. The connecting plate is located at the lower end of the longitudinal support column. A tripod is fixedly connected to the surface of the support block. The tripod is fixedly connected to the four sides of the base beam by connecting bolts, which enhances the load-bearing capacity of the node under complex stress conditions and effectively resists the effects of external forces such as earthquakes and wind loads.

[0010] Furthermore, there are several connecting holes and bolts, and the connecting holes are distributed on both sides of the connecting plate, which further improves the reliability of the node connection.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the design between the mounting plate and the I-beam and longitudinal support column allows the connecting plate to be snapped into the mounting groove during use. The convenient bolt connection method greatly simplifies the on-site assembly process, reduces construction difficulty, and improves construction efficiency. The assembly is simple during use, while also increasing stability and improving construction efficiency.

[0013] 2. In this utility model, the stability of the nodes under vertical and lateral loads is comprehensively improved by setting up a reinforced structure and forming a stable frame structure with I-beams and longitudinal support columns, effectively preventing loosening and deformation, providing a solid guarantee for the long-term safe use of the building, and meeting the needs of different building heights and structural forms. Attached Figure Description

[0014] Figure 1 This utility model provides a three-dimensional structural diagram of a prefabricated building connection node structure;

[0015] Figure 2This utility model provides a three-dimensional structural diagram of a prefabricated building connection node structure viewed from below;

[0016] Figure 3 This utility model provides a top view of the structure of a prefabricated building connection node without the mounting plate.

[0017] Figure 4 This utility model provides a structural schematic diagram of the base beam in the connection node structure of a prefabricated building;

[0018] Figure 5 This is a schematic diagram of the connection between the crossbeam and the mounting plate in a prefabricated building connection node structure according to this utility model.

[0019] Legend:

[0020] 1. Longitudinal support column; 2. I-beam; 21. First I-beam crossbeam; 22. Second I-beam crossbeam; 23. Third I-beam crossbeam; 24. Fourth I-beam crossbeam; 3. Mounting groove; 4. Mounting plate; 41. Right-angle mounting block; 42. Connecting plate; 43. Connecting hole; 44. Bolt; 45. Nut; 5. Base crossbeam; 6. Reinforcing structure; 61. Support block; 62. Connecting plate; 63. Tripod. Detailed Implementation

[0021] Please see Figure 1-5 This utility model provides a technical solution: a prefabricated building connection node structure, including a longitudinal support column 1, with I-beams 2 respectively provided on the four sides of the longitudinal support column 1, and mounting plates 4 provided on the connection surfaces of the I-beams 2 and the longitudinal support column 1, with a base beam 5 fixedly connected to the lower end of the longitudinal support column 1, and a reinforcing structure 6 provided on the four sides of the base beam 5, and mounting grooves 3 opened inside the I-beams 2.

[0022] The following section will explain the specific configuration and function of the I-beam 2, mounting plate 4, and reinforcing structure 6.

[0023] In this embodiment: the mounting plate 4 includes a right-angle mounting block 41, and a connecting plate 42 is provided inside the right-angle mounting block 41. The connecting plate 42 fits into the mounting groove 3.

[0024] The effect achieved by the above components is as follows: In the assembly process of prefabricated buildings, the connecting plate 42 of the mounting plate 4 is first aligned with the mounting groove 3 inside the I-beam 2 and inserted. Since the two fit together, precise positioning can be achieved, which facilitates the subsequent fastening operation, ensures the initial stability of the connection between the I-beam 2 and the longitudinal support column 1, effectively prevents the relative displacement of the two in the early stage of assembly, and thus ensures the installation accuracy of the entire connection node.

[0025] Specifically, the I-beam 2 includes a first I-beam 21, a second I-beam 22, a third I-beam 23, and a fourth I-beam 24. The first I-beam 21 is located on one side of the longitudinal support column 1, the second I-beam 22 is located on the other side of the longitudinal support column 1, the third I-beam 23 is symmetrically distributed with the first I-beam 21, the fourth I-beam 24 is symmetrically distributed with the first I-beam 21, the first I-beam 21 and the second I-beam 22 are distributed at right angles, the first I-beam 21 and the third I-beam 23 are distributed in a straight line, and the third I-beam 23 and the fourth I-beam 24 are distributed at right angles.

[0026] The effect achieved by the above components is to greatly enhance the stability of the entire building structure, laying a solid foundation for the safe use of the building.

[0027] Specifically, the surface of the right-angle mounting block 41 is provided with connecting holes 43, and bolts 44 are fixedly connected to all four sides of the longitudinal support column 1. The bolts 44 pass through the connecting holes 43, and the end of the bolt 44 away from the longitudinal support column 1 is threaded with a nut 45.

[0028] The effect achieved by the above components is as follows: when the mounting plate 4 is connected to the longitudinal support column 1, the bolt 44 is passed through the connecting hole 43 on the right-angle mounting block 41, and then the nut 45 is tightened. The bolt tightening force is used to firmly fix the two together, effectively preventing the mounting plate 4 from separating from the longitudinal support column 1 due to external forces during the building's use, thus ensuring the integrity of the structure.

[0029] Specifically, the upper surface of the I-beam 2 is provided with threaded holes, and the upper surface of the right-angle mounting block 41 is provided with connecting holes. The positions of the threaded holes and connecting holes correspond to each other. There are several threaded holes and connecting holes, and the threaded holes and connecting holes are connected by a fixed bolt thread.

[0030] The effect achieved by the above components is as follows: by further using fixing bolts to pass through the corresponding threaded holes and connecting holes and tightening them, the multiple fastening methods work together to ensure that the connection nodes remain stable when subjected to long-term and repeated loads, effectively avoiding problems such as loosening and displacement, and ensuring that the building structure is in a safe and reliable state for a long time.

[0031] Specifically, the reinforcement structure 6 includes a support block 61 and a connecting plate 62. The support block 61 is fixedly connected to the four sides of the base beam 5. The connecting plate 62 is located at the lower end of the longitudinal support column 1. A tripod 63 is fixedly connected to the surface of the support block 61. The tripod 63 is fixedly connected to the four sides of the base beam 5 by connecting bolts.

[0032] The effects achieved by the above components are as follows: the support block 61 provides additional support area for the longitudinal support column 1, disperses the pressure transmitted to the base beam 5, reduces local pressure, and after being fixedly connected to the base beam 5 by the connecting bolt, it provides strong lateral support force for the connection node between the base beam 5 and the longitudinal support column 1, thereby ensuring the overall structural safety of the building.

[0033] Specifically, there are several connecting holes 43 and bolts 44, with connecting holes 43 distributed on both sides of the connecting plate 42.

[0034] The effects achieved by the above components are: to further improve the reliability of node connections and extend the service life of building structures.

[0035] Working principle: At the prefabricated building construction site, the longitudinal support column 1 is first fixed in place according to the design position. Then, each I-beam 2 is moved to its corresponding position, so that the first I-beam 21, the second I-beam 22, the third I-beam 23, and the fourth I-beam 24 are accurately installed on the four sides of the longitudinal support column 1, forming a stable frame prototype. Next, the mounting plate 4 is picked up, and the connecting plate 42 is inserted into the mounting groove 3 of the I-beam 2 for initial positioning. Immediately afterwards, the bolts 44 are passed through the connecting holes 43 on the right-angle mounting block 41 in sequence, and the nuts 45 are tightened at the other end to complete the initial tightening. After that, the fixing bolts are used to connect the threaded holes on the upper surface of the I-beam 2 to the connecting holes on the upper surface of the right-angle mounting block 41 one by one and tighten them to achieve double tightening. Finally, the reinforcing structure 6 is installed on the four sides of the base beam 5 at the lower end of the longitudinal support column 1. Ensure that the entire connection node can stably withstand various vertical and lateral loads during the building's use, thus guaranteeing the overall structural safety and stability of the prefabricated building.

Claims

1. A prefabricated building connection node structure, comprising longitudinal support columns (1), characterized in that: The longitudinal support column (1) is provided with I-beams (2) on its four sides respectively. The connection surfaces of the I-beams (2) and the longitudinal support column (1) are provided with mounting plates (4). The lower end of the longitudinal support column (1) is fixedly connected to a base beam (5). The four sides of the base beam (5) are provided with reinforcing structures (6). The I-beams (2) are provided with mounting grooves (3). The mounting plate (4) includes a right-angle mounting block (41). The right-angle mounting block (41) is provided with a connecting plate (42). The connecting plate (42) matches the mounting groove (3).

2. The prefabricated building connection node structure according to claim 1, characterized in that: The I-beam (2) includes a first I-beam (21), a second I-beam (22), a third I-beam (23), and a fourth I-beam (24). The first I-beam (21) is located on one side of the longitudinal support column (1), and the second I-beam (22) is located on the other side of the longitudinal support column (1). The third I-beam (23) is symmetrically distributed with the first I-beam (21), and the fourth I-beam (24) is symmetrically distributed with the first I-beam (21). The first I-beam (21) and the second I-beam (22) are distributed at right angles. The first I-beam (21) and the third I-beam (23) are distributed in a straight line, and the third I-beam (23) and the fourth I-beam (24) are distributed at right angles.

3. The prefabricated building connection node structure according to claim 1, characterized in that: The surface of the right-angle mounting block (41) is provided with a connecting hole (43), and bolts (44) are fixedly connected to the sides of the longitudinal support column (1). The bolts (44) pass through the connecting hole (43), and a nut (45) is threaded to the end of the bolt (44) away from the longitudinal support column (1).

4. The prefabricated building connection node structure according to claim 3, characterized in that: The upper surface of the I-beam (2) is provided with a threaded hole, and the upper surface of the right-angle mounting block (41) is provided with a connecting hole. The positions of the threaded hole and the connecting hole correspond to each other. There are several threaded holes and connecting holes. The threaded hole and the connecting hole are connected by a fixed bolt thread.

5. A prefabricated building connection node structure according to claim 1, characterized in that: The reinforcement structure (6) includes a support block (61) and a connecting plate (62). The support block (61) is fixedly connected to the four sides of the base beam (5). The connecting plate (62) is located at the lower end of the longitudinal support column (1). A tripod (63) is fixedly connected to the surface of the support block (61). The tripod (63) is fixedly connected to the four sides of the base beam (5) by connecting bolts.

6. A prefabricated building connection node structure according to claim 3, characterized in that: There are several connecting holes (43) and bolts (44), and the connecting holes (43) are distributed on both sides of the connecting plate (42).