Fabricated seismic beam-column connection node structure
By introducing inclined reinforcing components and bolted connections into the prefabricated beam-column connection nodes to form triangular supports, the problem of weak connections between beams and between beams and columns is solved, achieving higher seismic performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU URBAN CONSTR DEV & DESIGN INST CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-26
AI Technical Summary
The existing prefabricated beam-column connection structure has poor connection strength between beams and between beams and columns, resulting in insufficient seismic performance and difficulty in meeting actual needs.
By employing first and second reinforcing components, and through inclined reinforcing rods and connectors combined with a bolt structure, the beams and supports are quickly connected and reinforced, forming a triangular support structure to improve stability.
This improves the connection strength between the beams and the columns, enhances the overall seismic performance, ensures that the beams are not easily damaged or broken during an earthquake, and improves the seismic performance of the prefabricated structure.
Smart Images

Figure CN224412829U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of earthquake-resistant beams and columns, and in particular to a prefabricated earthquake-resistant beam and column connection node structure. Background Technology
[0002] Prefabricated seismic-resistant beams and columns refer to beam and column structures that are prefabricated in the factory and transported to the construction site for assembly using precast components and parts connected by high-strength bolts. The seismic performance of this type of structure is mainly achieved through its structural design. Beam and column connection nodes usually need to be connected using prefabricated methods. The traditional prefabricated connection method is to use L-shaped connectors for transitional connection between steel beams and steel columns. The L-shaped connectors are connected to both the steel columns and steel beams using high-strength bolts to achieve a rigid connection between the L-shaped connectors and the steel columns and steel beams.
[0003] Chinese utility model patent CN218622658U discloses a prefabricated beam-column joint connection structure. This structure involves inserting a connector block into a connector slot to initially fix the frame plate column and H-shaped plate. Then, tightening the locking bolts locks the connector plate into a locking groove, thus securing it and enabling rapid connection between the frame plate column and H-shaped plate. Simultaneously, the locking bolts are inserted into the connector block, locking it in the connector slot and further improving the connection stability between the frame plate column and H-shaped plate. However, this prefabricated beam-column joint connection structure lacks a reinforcing structure between the beams, resulting in poor connection strength between the beams and the support column. This reduces its practicality and hinders widespread adoption. Utility Model Content
[0004] The purpose of this utility model is to provide a prefabricated earthquake-resistant beam-column connection node structure that is easy to install and makes the connection between the beam and the column more secure.
[0005] To achieve the above objectives, this utility model provides a prefabricated seismic-resistant beam-column connection node structure, including a support column and a crossbeam. A first fixing block is provided on one side of the support column near the crossbeam. A connector is provided between the first fixing block and one end of the crossbeam. One end of the connector and the first fixing block, and the other end of the connector and the end of the crossbeam are connected by a convex-concave plug-in fit and a bolt structure. It also includes an inclined second reinforcing component, which is detachably connected between the side walls of the support column and the crossbeam.
[0006] As a further improvement of this utility model, the two ends of the connector are respectively provided with a first groove and a second groove; the first fixing block on the support column is inserted into the first groove and the two are connected by a first bolt; one end of the crossbeam is inserted into the second groove of the connector and the two are connected by a second bolt.
[0007] As a further improvement of this utility model, the connector is fixedly connected with a plug located in the middle of the second groove, and one end of the crossbeam is provided with a third slot, which is engaged with the plug of the connector.
[0008] As a further improvement of this utility model, the second reinforcing component includes an inclined second reinforcing rod, one end of which is provided with a mounting sliding plate. The mounting sliding plate forms a vertically arranged sliding strip through its curved edge. A second fixing block is provided on the side wall of the support column, and a first slot is provided on the side wall of the second fixing block. The first slot of the second fixing block is engaged with the sliding strip of the mounting sliding plate. The second fixing block and the mounting sliding plate are connected by a fourth bolt.
[0009] As a further improvement of this utility model, the other end of the second reinforcing rod is provided with a mounting groove plate, and the mounting groove plate forms a snap-fit groove through its curved edge; the outer wall of the crossbeam is provided with a second slot, and the snap-fit groove of the mounting groove plate is fastened to the second slot and the two are connected by a fifth bolt.
[0010] As a further improvement of this utility model, it also includes a first reinforcing component arranged at an angle; at least two crossbeams at the same height on the same support column are provided at an angle to each other, and the first reinforcing component is detachably connected between adjacent crossbeams.
[0011] As a further improvement of this utility model, the first reinforcing component includes an inclined first reinforcing rod, both ends of which are provided with end plates, and vertically arranged guide blocks are provided on the end plates; a guide groove is provided on the side wall of the crossbeam, and the guide blocks are inserted into the guide grooves in an upper and lower engagement; the end plates of the first reinforcing rod are connected to the crossbeam by a third bolt.
[0012] Beneficial effects
[0013] Compared with existing technologies, the advantages of the prefabricated seismic-resistant beam-column connection node structure of this utility model are:
[0014] 1. The quick installation of the support column and the connector can be achieved through the cooperation of the first fixing block, the first groove, the second bolt, the second threaded hole, and the first threaded hole. The quick connection of the crossbeam and the connector can be achieved through the cooperation of the first fixing block and the first groove, the insert block and the third slot, the second bolt, the third threaded hole, and the fourth threaded hole, thereby improving the installation efficiency of the workers.
[0015] 2. Due to the stability of a triangle, the design of the first reinforcing rod effectively supports different beams at the same height on the support column during an earthquake, making the beams less prone to damage and breakage, thus increasing the strength between the beams and providing high seismic performance. The design of the second reinforcing rod further enhances the strength between the beams and the support column, making them less prone to damage and breakage, and further improving the overall seismic performance.
[0016] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the installation structure of the connector of this utility model;
[0020] Figure 3 This is a schematic diagram of the installation structure of the first reinforcing component of this utility model;
[0021] Figure 4 This is a schematic diagram of the beam installation structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the installation structure of the second reinforcing component of this utility model;
[0023] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle. Detailed Implementation
[0024] Embodiments of the present invention will now be described with reference to the accompanying drawings.
[0025] Example
[0026] The specific embodiments of this utility model are as follows: Figures 1 to 6As shown, a prefabricated seismic-resistant beam-column connection node structure includes a support column 1 and a crossbeam 2. A first fixing block 3 is provided on one side of the support column 1 near the crossbeam 2. A connector 5 is provided between the first fixing block 3 and one end of the crossbeam 2. One end of the connector 5 and the first fixing block 3, and the other end of the connector 5 and the end of the crossbeam 2, are connected by a tongue-and-groove joint and bolts. It also includes an inclined second reinforcing component 16, which is detachably connected between the side walls of the support column 1 and the crossbeam 2. In this embodiment, the second reinforcing component 16 is provided on both the upper and lower sides of the crossbeam 2.
[0027] The connector 5 has a first groove 7 and a second groove 9 at both ends. The first fixing block 3 on the support column 1 is inserted into the first groove 7 and the two are connected by a first bolt 8. Specifically, the first fixing block 3 has a first threaded hole 4, and the connector 5 has a second threaded hole 6 that communicates with the side wall of the first groove 7. The first bolt 8 passes through the second threaded hole 6 and the first threaded hole 4 in sequence, and the first bolt 8 is threaded into the second threaded hole 6 and the first threaded hole 4 respectively.
[0028] One end of the crossbeam 2 is inserted into the second groove 9 of the connector 5 and the two are connected by the second bolt 14. Specifically, the connector 5 is provided with a third threaded hole 10 that communicates with the side wall of the second groove 9, and the side wall of one end of the crossbeam 2 is provided with a fourth threaded hole 13. The second bolt 14 passes through the third threaded hole 10 and the fourth threaded hole 13 in sequence, and the second bolt 14 is threadedly engaged with the third threaded hole 10 and the fourth threaded hole 13 respectively.
[0029] A plug 11 located in the middle of the second groove 9 is fixedly connected to the connector 5. A third slot 12 is provided at one end of the crossbeam 2. The third slot 12 of the crossbeam 2 is engaged with the plug 11 of the connector 5.
[0030] The second reinforcing component 16 includes an inclined second reinforcing rod 1601, which forms a 45° angle with the support column 1 and with the crossbeam 2. One end of the second reinforcing rod 1601 is provided with a mounting sliding plate 1602, and both sides of the mounting sliding plate 1602 form vertically arranged sliding strips through their curved edges. The side wall of the support column 1 is provided with a second fixing block 1605, and both sides of the second fixing block 1605 are provided with first slots 1606. The two first slots 1606 of each second fixing block 1605 are inserted into the two sliding bars of the mounting sliding plate 1602. The second fixing block 1605 and the mounting sliding plate 1602 are connected by a fourth bolt 1609. Specifically, the mounting sliding plate 1602 is provided with a seventh threaded hole 1604, and the second fixing block 1605 is provided with an eighth threaded hole 1607. The fourth bolt 1609 passes through the seventh threaded hole 1604 and the eighth threaded hole 1607 in sequence, and the fourth bolt 1609 is threadedly engaged with the seventh threaded hole 1604 and the eighth threaded hole 1607 respectively.
[0031] The other end of the second reinforcing rod 1601 is provided with a mounting groove 1603, which forms a snap-fit groove through its curved edge. The outer wall of the crossbeam 2 is provided with a second slot 1608, and the snap-fit groove of the mounting groove 1603 is fastened to the second slot 1608 and the two are connected by a fifth bolt 1600. Specifically, the mounting groove 1603 is provided with a seventh threaded hole 1604, and the fifth bolt 1600 passes through the seventh threaded hole 1604 of the mounting groove 1603 and is threadedly connected to the threaded hole on the second slot 1608.
[0032] The prefabricated seismic-resistant beam-column connection node structure also includes an inclined first reinforcing component 15. Four crossbeams 2 are installed at the same height on the same column 1, with adjacent crossbeams 2 forming a 90° angle. The first reinforcing component 15 is detachably connected between adjacent crossbeams 2.
[0033] The first reinforcing component 15 includes an inclined first reinforcing rod 1501, which forms a 45° angle with the crossbeam 2. Both ends of the first reinforcing rod 1501 have end plates, and vertically arranged guide blocks 1504 are provided on the end plates. The cross-section of the guide blocks 1504 is T-shaped. Vertically arranged guide grooves 1502 are provided on the sidewall of the crossbeam 2. The guide blocks 1504 are inserted into the guide grooves 1502. The end plates of the first reinforcing rod 1501 are connected to the crossbeam 2 by a third bolt 1506. Specifically, the end plate of the first reinforcing rod 1501 has a sixth threaded hole 1505, and the sidewall of the crossbeam 2 has a fifth threaded hole 1503. The third bolt 1506 passes through the sixth threaded hole 1505 and the fifth threaded hole 1503 in sequence, and the third bolt 1506 is threaded into both the sixth threaded hole 1505 and the fifth threaded hole 1503.
[0034] When an earthquake occurs, the triangle's stability, combined with the design of the first reinforcing rod 1501, makes the crossbeam 2 less prone to damage and breakage, improving the strength between the crossbeams 2 and giving it high seismic performance. The design of the second reinforcing rod 1601 makes the crossbeam 2 and the support column 1 less prone to damage and breakage, improving the strength between the crossbeam 2 and the support column 1 and further enhancing the overall seismic resistance.
[0035] The present invention has been described above in conjunction with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations made in accordance with the essence of the present invention.
Claims
1. A prefabricated seismic-resistant beam-column connection node structure, comprising a column (1) and a beam (2), characterized in that, The support column (1) is provided with a first fixing block (3) on one side near the crossbeam (2). A connector (5) is provided between the first fixing block (3) and one end of the crossbeam (2). One end of the connector (5) and the first fixing block (3) and the other end of the connector (5) and the end of the crossbeam (2) are connected by a convex-concave plug-in fit and bolt structure. It also includes a second reinforcing component (16) arranged at an angle. The second reinforcing component (16) is detachably connected between the side walls of the support column (1) and the crossbeam (2). The two ends of the connector (5) are respectively provided with a first concave-convex plug-in fit. The first fixing block (3) on the support (1) is inserted into the first groove (7) and the two are connected by the first bolt (8); one end of the crossbeam (2) is inserted into the second groove (9) of the connector (5) and the two are connected by the second bolt (14); the connector (5) is fixedly connected with the insert (11) located in the middle of the second groove (9), and one end of the crossbeam (2) is provided with a third slot (12), and the third slot (12) of the crossbeam (2) is inserted into the insert (11) of the connector (5).
2. The prefabricated seismic-resistant beam-column connection node structure according to claim 1, characterized in that, The second reinforcing component (16) includes an inclined second reinforcing rod (1601), one end of which is provided with a mounting sliding plate (1602). The mounting sliding plate (1602) forms a vertically arranged sliding strip through its curved edge. The side wall of the support column (1) is provided with a second fixing block (1605), and the side wall of the second fixing block (1605) is provided with a first slot (1606). The first slot (1606) of the second fixing block (1605) is inserted into the sliding strip of the mounting sliding plate (1602) for vertical engagement. The second fixing block (1605) and the mounting sliding plate (1602) are connected by a fourth bolt (1609).
3. The prefabricated seismic-resistant beam-column connection node structure according to claim 2, characterized in that, The other end of the second reinforcing rod (1601) is provided with a mounting groove plate (1603), which forms a snap-fit groove through its curved edge; the outer wall of the crossbeam (2) is provided with a second slot (1608), and the snap-fit groove of the mounting groove plate (1603) is fastened to the second slot (1608) and the two are connected by a fifth bolt (1600).
4. The prefabricated seismic-resistant beam-column connection node structure according to claim 1, characterized in that, It also includes a first reinforcing component (15) arranged at an angle; at least two crossbeams (2) are provided at the same height on the same support (1), and the first reinforcing component (15) is detachably connected between adjacent crossbeams (2).
5. The prefabricated seismic-resistant beam-column connection node structure according to claim 4, characterized in that, The first reinforcing component (15) includes an inclined first reinforcing rod (1501), both ends of the first reinforcing rod (1501) are provided with end plates, and the end plates are provided with vertically arranged guide blocks (1504); the side wall of the crossbeam (2) is provided with a guide groove (1502), the guide block (1504) and the guide groove (1502) are inserted and matched vertically, and the end plate of the first reinforcing rod (1501) is connected to the crossbeam (2) by a third bolt (1506).