A bracing-free assembly type main and secondary beam connecting joint

Abstract

The utility model relates to the technical field of building, and disclose a kind of bracing-free fabricated main secondary beam connecting joint, the bracing-free fabricated main secondary beam connecting joint, including main beam, the lateral wall of main beam is provided with secondary beam, the lateral wall of main beam is provided with connecting assembly, the connecting assembly includes the trapezoidal block fixedly connected in the end face of secondary beam, the end face of trapezoidal block is inserted with reinforcing bar, the lateral wall of main beam is provided with trapezoidal groove, the inner wall of trapezoidal groove is provided with slot, the lateral wall of main beam is fixedly connected with beam support. The bracing-free fabricated main secondary beam connecting joint, reinforcing bar of trapezoidal block top is inserted into the slot of lateral wall of main beam, while trapezoidal block and the trapezoidal groove of lateral wall of main beam form insertion engagement, to realize the preliminary positioning and transverse constraint of main beam and secondary beam, trapezoidal block insertion, beam support and reinforcing bar support form triple connecting structure, and the overall stiffness and carrying capacity of node are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of building technology, specifically to a support-free prefabricated main and secondary beam connection node. Background Technology

[0002] Prefabricated main and secondary beams consist of main beams and secondary beams. The main beams, acting as the load-bearing framework, are installed at the main stress locations of the building structure. The secondary beams are fixed to or plugged into the main beams via connectors to form an overall frame structure. This structure allows for factory prefabrication and rapid on-site assembly, and its dimensions and connection methods can be flexibly adjusted according to design requirements. The main beams bear the main loads, while the secondary beams distribute the loads and provide support and connection surfaces.

[0003] According to a publicized prefabricated main and secondary beam connection node (publication number: CN222835082U), the above application includes a prefabricated main beam and a prefabricated secondary beam. The side of the prefabricated main beam is provided with a prefabricated beam support cast integrally with it, and the end of the prefabricated secondary beam rests on the prefabricated beam support. The prefabricated beam support is provided with a groove, and the end of the prefabricated secondary beam rests in the groove. The bottom of the end of the prefabricated secondary beam is provided with a notch, and the protruding end above the notch rests in the groove. The width of the groove is slightly larger than the width of the prefabricated secondary beam.

[0004] However, the above-mentioned device only sets one beam support on the side of the main beam to support the secondary beam. All the weight and load of the secondary beam end are concentrated on the beam support on the side of the main beam, which can easily cause stress concentration or local damage to the beam support. Under long-term stress or live load, the beam support may crack or the end of the secondary beam may slip. In view of this, we propose a supportless prefabricated main and secondary beam connection node. Utility Model Content

[0005] The purpose of this invention is to provide a support-free prefabricated main and secondary beam connection node to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a support-free prefabricated main and secondary beam connection node, including a main beam, a secondary beam provided on the side wall of the main beam, a connection component provided on the side wall of the main beam, the connection component including a trapezoidal block fixedly connected to the end face of the secondary beam, a reinforcing rib inserted into the end face of the trapezoidal block, a trapezoidal groove provided on the side wall of the main beam, a slot provided on the inner wall of the trapezoidal groove, a beam support fixedly connected to the side wall of the main beam, and a grouting port provided on the top end face of the main beam.

[0007] Preferably, the trapezoidal block is inserted into the trapezoidal groove, and the reinforcing rib is inserted into the slot.

[0008] Preferably, a gasket is fixedly connected to the inner bottom surface of the beam support, and the top end face of the gasket abuts against the secondary beam, thereby supporting the secondary beam.

[0009] Preferably, the top of the trapezoidal block is provided with an exhaust groove, and the number of exhaust grooves is set in several groups, with the several groups of exhaust grooves being equally spaced on the trapezoidal block.

[0010] Preferably, the slot is connected to the grouting port, and the grouting port is provided with a chamfer on one side of the top of the main beam to allow cement grout to flow into the grouting port.

[0011] Preferably, a sealing ring is fixedly connected to the side wall of the main beam, and the inner wall of the sealing ring is movably connected to the secondary beam.

[0012] Preferably, the sealing ring is U-shaped, and the top of the sealing ring has an opening, the direction of which is consistent with the opening direction of the exhaust groove.

[0013] Compared with the prior art, this utility model provides a support-free prefabricated main and secondary beam connection node, which has the following advantages: 1. This supportless prefabricated main and secondary beam connection node, through the set connection components, the reinforcing bars at the top of the trapezoidal block are inserted into the slots opened in the side wall of the main beam. At the same time, the trapezoidal block and the trapezoidal groove in the side wall of the main beam form an interlocking engagement, thereby realizing the initial positioning and lateral constraint of the main beam and the secondary beam. After the interlocking and support are completed, steel bars can be arranged on the main beam and the secondary beam, and then the concrete is poured. The trapezoidal block interlocking, beam support and steel reinforcement form a triple connection structure, which enhances the overall rigidity and load-bearing capacity of the node. The top of the main beam has a chamfered grouting port to inject cement grout into the space between the trapezoidal block and the slot. Several sets of equally spaced venting grooves opened at the top of the trapezoidal block allow the air inside the node to be discharged smoothly, ensuring that the grout fully fills the joint and improves the density of the node.

[0014] 2. The prefabricated main and secondary beam connection node without supports, through the setting of a sealing ring, allows for fine-tuning of the position of the secondary beam during the assembly process, achieving precise alignment and ensuring the levelness and flatness of the main beam and secondary beam node, thereby avoiding the accumulation of construction errors. The sealing ring tightly wraps around the end of the secondary beam, sealing the node joint and preventing the injected cement grout from leaking along the gaps. The grout concentrates inside the node, improving the grout density. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is an exploded view of the secondary beam of this utility model; Figure 3 This utility model Figure 2 Schematic diagram of the structure of region A in the middle; Figure 4 This is a schematic diagram of the structure after the main and secondary beams of this utility model have been reinforced with steel bars.

[0016] In the diagram: 1. Main beam; 2. Secondary beam; 3. Connecting component; 301. Trapezoidal block; 302. Reinforcing rib; 303. Trapezoidal groove; 304. Slot; 305. Beam support; 306. Grouting port; 307. Venting groove; 4. Gasket; 5. Sealing ring. Detailed Implementation

[0017] like Figures 1-4 As shown, this utility model provides a technical solution: a support-free prefabricated main and secondary beam connection node, including a main beam 1, a secondary beam 2 provided on the side wall of the main beam 1, a connection component 3 provided on the side wall of the main beam 1, the connection component 3 including a trapezoidal block 301 fixedly connected to the end face of the secondary beam 2, a reinforcing rib 302 inserted into the end face of the trapezoidal block 301, a trapezoidal groove 303 opened on the side wall of the main beam 1, a slot 304 opened on the inner wall of the trapezoidal groove 303, a beam support 305 fixedly connected to the side wall of the main beam 1, and a grouting port 306 opened on the top end face of the main beam 1.

[0018] In one embodiment of this utility model, trapezoidal block 301 is inserted into trapezoidal groove 303, reinforcing rib 302 is inserted into slot 304, and a gasket 4 is fixedly connected to the inner bottom surface of beam support 305. The top end face of gasket 4 abuts against secondary beam 2, and gasket 4 supports secondary beam 2.

[0019] The top of the trapezoidal block 301 is provided with an exhaust groove 307. Several sets of exhaust grooves 307 are provided, and the sets of exhaust grooves 307 are equally spaced on the trapezoidal block 301. The slot 304 is connected to the grouting port 306. The grouting port 306 is located at the top of the main beam 1 and is provided with a chamfer to allow cement grout to flow into the grouting port 306.

[0020] A trapezoidal block 301 is fixed to the end of the secondary beam 2. The reinforcing rib 302 at the top of the trapezoidal block 301 is inserted into the slot 304 opened in the side wall of the main beam 1. At the same time, the trapezoidal block 301 and the trapezoidal groove 303 in the side wall of the main beam 1 form an interlocking engagement, thereby realizing the initial positioning and lateral constraint of the main beam 1 and the secondary beam 2. The end of the secondary beam 2 is placed on the beam support 305 fixed in the side wall of the main beam 1. The gasket 4 fixed in the bottom surface of the beam support 305 abuts against the bottom end of the secondary beam 2, providing support and horizontal support for the secondary beam 2. This allows the node to be stably stressed without additional support during the construction stage. After the interlocking and support are completed, steel bars can be arranged on the main beam 1 and the secondary beam 2, and then the concrete is poured. This forms a triple connection structure with the trapezoidal block 301 interlocking, the beam support 305 supporting, and the steel reinforcement, which enhances the overall rigidity and load-bearing capacity of the node.

[0021] Cement grout is injected into the space between the trapezoidal block 301 and the slot 304 through the grouting port 306 with a chamfer at the top of the main beam 1. Several sets of equally spaced venting grooves 307 opened at the top of the trapezoidal block 301 allow the air inside the node to be discharged smoothly, ensuring that the grout fully fills the joint and improves the density of the node.

[0022] In addition, a sealing ring 5 is fixedly connected to the side wall of the main beam 1. The inner wall of the sealing ring 5 is movably connected to the secondary beam 2. The sealing ring 5 is U-shaped and has an opening at the top. The opening direction is consistent with the opening direction of the vent groove 307. The end of the secondary beam 2 can move slightly within the sealing ring 5, allowing construction personnel to fine-tune the position of the secondary beam 2 during assembly to achieve precise alignment. This ensures the levelness and flatness of the joint between the main beam 1 and the secondary beam 2, thereby avoiding the accumulation of construction errors. The sealing ring 5 tightly wraps around the end of the secondary beam 2 to seal the joint, preventing the injected cement grout from leaking along the gap. The grout concentrates inside the joint, improving the grout density, reducing material waste, and enhancing the strength and durability of the joint.

[0023] In this utility model, during use, the reinforcing rib 302 at the top of the trapezoidal block 301 is inserted into the slot 304 opened on the side wall of the main beam 1, and the trapezoidal block 301 and the trapezoidal slot 303 form an interlocking engagement, realizing the initial positioning and lateral constraint of the main beam 1 and the secondary beam 2. The end of the secondary beam 2 is placed on the beam support 305 fixed on the side wall of the main beam 1, providing support and horizontal support for the secondary beam 2, so that the node can be stably stressed without additional support during the construction stage. After the interlocking and support are completed, steel bars are arranged and poured on the main beam 1 and the secondary beam 2 to enhance the rigidity and load-bearing capacity of the node. The top of the main beam 1 is provided with a chamfered grouting port 306 to inject grout into the space between the trapezoidal block 301 and the slot 304. Several equally spaced venting grooves 307 on the top of the trapezoidal block 301 allow air to be discharged smoothly, improving the density of the node.

[0024] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A support-free prefabricated main and secondary beam connection node, comprising a main beam (1), wherein secondary beams (2) are provided on the side walls of the main beam (1), characterized in that: The main beam (1) has a connecting component (3) on its side wall. The connecting component (3) includes a trapezoidal block (301) fixedly connected to the end face of the secondary beam (2). A reinforcing rib (302) is inserted into the end face of the trapezoidal block (301). A trapezoidal groove (303) is opened on the side wall of the main beam (1). A slot (304) is opened on the inner wall of the trapezoidal groove (303). A beam support (305) is fixedly connected to the side wall of the main beam (1). A grouting port (306) is opened on the top end face of the main beam (1).

2. The prefabricated main and secondary beam connection node without support according to claim 1, characterized in that: The trapezoidal block (301) is inserted into the trapezoidal groove (303), and the reinforcing rib (302) is inserted into the slot (304).

3. The prefabricated main and secondary beam connection node without support according to claim 1, characterized in that: A gasket (4) is fixedly connected to the inner bottom surface of the beam support (305), and the top end face of the gasket (4) abuts against the secondary beam (2).

4. The prefabricated main and secondary beam connection node without support according to claim 1, characterized in that: The top of the trapezoidal block (301) is provided with an exhaust groove (307), and the number of exhaust grooves (307) is set in several groups, and the several groups of exhaust grooves (307) are equally spaced on the trapezoidal block (301).

5. The prefabricated main and secondary beam connection node without support according to claim 1, characterized in that: The slot (304) is connected to the grouting port (306), and the grouting port (306) is located at the top of the main beam (1) and is chamfered.

6. The prefabricated main and secondary beam connection node without support according to claim 1, characterized in that: The side wall of the main beam (1) is fixedly connected with a sealing ring (5), and the inner wall of the sealing ring (5) is movably connected to the secondary beam (2).

7. The prefabricated main and secondary beam connection node without support according to claim 6, characterized in that: The sealing ring (5) is arranged in a U-shape, and the top of the sealing ring (5) is provided with an opening, the direction of which is consistent with the opening direction of the exhaust groove (307).

Images