Connecting joint of assembly type prefabricated beam column

Abstract

The utility model discloses a connecting node of an assembly type prefabricated beam column, which is used for connecting column bodies and beam bodies and comprises a lifting piece and a connecting piece, the lifting piece is arranged on the column bodies, the connecting piece is arranged on the lifting piece, a first inserting groove and a second inserting groove are formed in the connecting piece, the first inserting groove is used for being connected with the column bodies in an inserting mode, and the second inserting groove is used for being connected with the beam bodies in an inserting mode. And the second slot is used for being inserted by the beam body, so that the column body is connected with the beam body. According to the connecting joint of the assembly type prefabricated beam column, through cooperation of the lifting piece and the connecting piece, rapid positioning of the column body and the beam body is achieved. The baffle of the lifting piece is matched with the connecting piece in width, so that the beam body can be accurately guided to be aligned, and the on-site adjustment time is shortened; the axial array arrangement of the second inserting grooves enables a plurality of beam bodies to be synchronously installed, the beam-column joint structure is particularly suitable for beam-column joint construction of a frame structure, and compared with a traditional welding or bolt connection mode, the installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a connection node for prefabricated beams and columns. Background Technology

[0002] Against the backdrop of rapid development in the construction industry, prefabricated modular buildings have been widely used in various construction projects due to their advantages such as high construction efficiency, energy conservation and environmental protection, and controllable quality. As the core load-bearing components of prefabricated buildings, the ease of construction and reliability of the connection nodes of prefabricated beams and columns directly affect the overall performance and construction efficiency of the building. Currently, traditional methods for connecting prefabricated beams and columns mainly include grouting sleeve connections, welding connections, or bolt connections. Grouting sleeve connections require on-site rebar positioning, sleeve installation, and grouting, which is not only complex and time-consuming, but also significantly affected by the construction environment in terms of grouting quality. Welding or bolt connections require extremely high precision in component processing, necessitating precise high-altitude alignment on-site. The welding process is easily affected by weather conditions, and bolt tightening requires repeated adjustments, all of which fail to meet the demands of rapid construction. In practice, these connection methods generally suffer from cumbersome construction steps, high reliance on manual labor, and poor process coordination, resulting in low installation efficiency of prefabricated beams and columns, becoming a key bottleneck restricting the construction progress of prefabricated buildings. Utility Model Content

[0003] The purpose of this utility model is to provide a connection node for prefabricated beams and columns to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated beam-column connection node for connecting columns and beams, comprising:

[0005] A lifting member, wherein the lifting member is disposed on the column;

[0006] A connector is provided on the supporting member. The connector has a first slot and a second slot. The first slot is for insertion into the column and the second slot is for insertion into the beam, thereby connecting the column and the beam.

[0007] Preferably, the second slot is further provided with a support plate, and the support plate is further provided with a connecting rod.

[0008] Preferably, there are at least four second slots, all of which are arranged in an axial array on the connector.

[0009] Preferably, the lifting member is further provided with a baffle, and the distance between the inner side of the baffle and the column body matches the width of the connecting member.

[0010] Preferably, both the column and the beam are reinforced with steel bars, and the steel bars of the beam and the column intersect each other to form a cross node.

[0011] Preferably, the column has holes for reinforcing bars to be connected to the beam.

[0012] Preferably, the beam is provided with a mounting plate, the mounting plate has mounting holes for the connecting rod to pass through, and the connecting rod is provided with a nut for fixing the mounting plate to the bearing plate.

[0013] Preferably, the connecting end of the beam is provided with a plug-in steel bar, which is used to insert into the steel bar hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The prefabricated beam-column connection node achieves rapid positioning of the column and beam through the cooperation of the support and connector components. The baffle of the support component matches the width of the connector component, which can accurately guide the beam alignment and reduce on-site adjustment time; the axial array arrangement of the second slot allows multiple beams to be installed simultaneously, which is especially suitable for the construction of beam-column joints in frame structures, and improves installation efficiency compared with traditional welding or bolt connection methods.

[0016] The connection nodes of this prefabricated beam-column system feature interlocking reinforcing bars in the beams and rebar holes in the columns, forming a rebar intersection in the joint area. This ensures the continuity of structural stress and simplifies the traditional rebar tying process. The interlocking method avoids complex rebar bending and positioning operations, making node construction more convenient. Furthermore, the mechanical properties of the rebar intersection are superior to traditional lap joints, effectively transferring loads and improving the seismic performance of the node.

[0017] This prefabricated beam-column connection node features at least four second slots on the connector, allowing for simultaneous connection of beams in multiple directions. It is particularly suitable for complex "T"-shaped and "+"-shaped joints in architecture. This multi-directional adaptability makes this connection node suitable for a wide range of applications, meeting the needs of different building structures and reducing the cost of customized design and manufacturing for special joints. Attached Figure Description

[0018] Figure 1 This is a partial schematic diagram of the connection structure of this utility model;

[0019] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 This is a schematic diagram of the structure of the connector of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of this utility model with the beam removed;

[0022] Figure 5 This is a schematic diagram of the beam structure of this utility model.

[0023] In the diagram: 1. Column; 11. Rebar hole; 2. Supporting component; 21. Baffle; 3. Connector; 31. Bearing plate; 32. Connecting rod; 33. First slot; 34. Second slot; 35. Nut; 4. Beam; 41. Mounting plate; 42. Mounting hole; 43. Inserted rebar. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a prefabricated beam-column connection node for connecting a column 1 and a beam 4. Both the column 1 and the beam 4 contain reinforcing bars, which intersect with each other to form a cross node. The column 1 has multiple horizontally protruding reinforcing bar holes 11 along its sidewall, evenly spaced along its height. The hole diameters are matched to the diameters of the inserted reinforcing bars 43 at the connection ends of the beam 4, enabling precise alignment with the beam 4.

[0026] A mounting plate 41 is provided on the beam 4. The mounting plate 41 is pre-embedded and cast integrally with the concrete of the beam 4. The surface is treated to make it flat and perpendicular to the axis of the beam 4. Four mounting holes 42 are symmetrically arranged on the mounting plate 41 in a rectangular array for the connecting rods 32 on the bearing plate 31 to pass through. The connecting rods 32 are made of high-strength threaded steel and have external threads at the top, which can be used with nuts 35. By tightening the nuts 35, the mounting plate 41 can be tightly fixed to the bearing plate 31 to form a stable connection structure. The connecting end of the beam 4 has protruding insert bars 43. The insert bars 43 are fixed integrally with the main reinforcement inside the beam 4. Their length and arrangement correspond one-to-one with the reinforcement holes 11 on the column 1, which are used to accurately insert the reinforcement holes 11 to ensure effective force transmission of the reinforcement at the beam-column joint.

[0027] The support component 2 is welded from steel plate and is fixedly installed at a predetermined position on the column 1 using high-strength bolts. The upper surface of the support component 2 is perpendicular to the axis of the column 1. The support component 2 is also equipped with an L-shaped baffle 21. The distance between the inner side of the baffle 21 and the column 1 is precisely designed to match the width of the connector 3. This baffle can play a precise limiting role during the installation of the connector 3, preventing the connector 3 from shifting and ensuring installation accuracy.

[0028] The bottom of the connector 3 is fixed to the center of the upper surface of the support 2 by welding. The web of the connector 3 has a first slot 33 and multiple second slots 34. The first slot 33 is vertically oriented, and its width and depth are adapted to the cross-sectional dimensions of the column 1, allowing for precise insertion by the top of the column 1 to achieve initial positioning of the connector 3 and the column 1. The second slots 34 are horizontally oriented on the connector 3, with at least four slots. All second slots 34 are arranged in an axial array with the central axis of the connector 3 as a reference, and the dimensions of each second slot 34 match the end cross-section of the beam 4, allowing for precise insertion by the end of the beam 4 to securely connect the column 1 and the beam 4.

[0029] A bearing plate 31, which is a square steel plate, is also welded and fixed in the second slot 34 to provide a stable support surface for the beam 4. Multiple connecting rods 32 are vertically welded on the bearing plate 31. The number of connecting rods 32 is consistent with the number of mounting holes 42 on the mounting plate 41 of the beam 4, and their positions correspond one-to-one. They are engaged with the mounting plate 41 by nuts 35 to further enhance the stability and reliability of the beam-column connection node.

[0030] When using prefabricated beam-column connection nodes, the support member 2 is first fixed to the predetermined position of the column 1 with high-strength bolts. The baffle 21 on the support member 2 can precisely limit the subsequent installation of the connector 3. Next, the bottom of the connector 3 is welded to the upper surface of the support member 2, and the top of the column 1 is inserted into the first slot 33 of the connector 3 to complete the initial positioning. Subsequently, the beam 4 is moved to the installation position, and the inserted steel bars 43 at the end of the beam 4 are inserted into the steel bar holes 11 of the column 1. At the same time, the end of the beam 4 is inserted into the second slot 34 of the connector 3, so that the mounting plate 41 on the beam 4 fits against the bearing plate 31. At this time, the connecting rod 32 on the bearing plate 31 passes through the mounting hole 42 of the mounting plate 41, and the mounting plate 41 is fastened to the bearing plate 31 by tightening the nut 35, realizing a stable connection between the beam 4 and the connector 3. During this process, the steel bars inside beam 4 and column 1 interweave to form cross nodes, further enhancing the mechanical properties of the connection nodes and ultimately completing a safe and reliable prefabricated connection between column 1 and beam 4.

[0031] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated beam-column connection node for connecting a column (1) and a beam (4), characterized in that, include: Lifting component (2), the lifting component (2) is provided on the column (1); A connector (3) is provided on the support member (2). The connector (3) has a first slot (33) and a second slot (34). The first slot (33) is used to be inserted into the column (1), and the second slot (34) is used to be inserted into the beam (4) to connect the column (1) and the beam (4).

2. The prefabricated beam-column connection node according to claim 1, characterized in that: The second slot (34) is also provided with a support plate (31), and the support plate (31) is also provided with a connecting rod (32).

3. A prefabricated beam-column connection node according to claim 1 or 2, characterized in that: There are at least four second slots (34), and all of the second slots (34) are arranged in an axial array on the connector (3).

4. The connection node for prefabricated beams and columns according to claim 1, characterized in that: The lifting member (2) is also provided with a baffle (21), and the distance between the inner side of the baffle (21) and the column (1) matches the width of the connector (3).

5. The connection node for prefabricated beams and columns according to claim 1, characterized in that: Both the column (1) and the beam (4) are reinforced with steel bars. The steel bars of the beam (4) and the steel bars of the column (1) intersect each other to form a cross node.

6. A prefabricated beam-column connection node according to claim 1 or 5, characterized in that: The column (1) has steel bar holes (11) for connecting the beam (4).

7. The prefabricated beam-column connection node according to claim 2, characterized in that: The beam (4) is provided with a mounting plate (41), and the mounting plate (41) is provided with a mounting hole (42). The mounting hole (42) is used for the connecting rod (32) to pass through. The connecting rod (32) is provided with a nut (35), and the nut (35) is used to fix the mounting plate (41) on the bearing plate (31).

8. The connection node for prefabricated beams and columns according to claim 6, characterized in that: The beam (4) has a protruding insert steel bar (43) at the connecting end, which is used to insert the steel bar hole (11).

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