Primary and secondary beam tongue-and-groove connecting node for warehouse

Abstract

The utility model discloses a main and secondary beam tongue-and-groove connection node for a warehouse, which relates to the technical field of prefabricated beam connection in constructional engineering and comprises a prefabricated secondary beam, and a shear-resistant steel plate is arranged on the inner side of a beam head at the end part of the prefabricated secondary beam. According to the secondary beam head formed by the anti-shearing steel plate, the triangular steel plate, the bottom steel plate, the reinforcing steel plate, the arc-shaped base plate and the hanging bar, when the prefabricated secondary beam is connected with the prefabricated main beam, the prefabricated secondary beam is placed in the groove of the prefabricated main beam, the installation steps of the prefabricated main beam and the prefabricated secondary beam are simplified, and the installation efficiency is improved. Meanwhile, damage caused by local compressive stress concentration can be avoided, shear damage of the prefabricated secondary beam cannot occur before bending damage, the bending damage belongs to a suitable rib damage form, the bearing capacity of the prefabricated secondary beam has high safety reserve, the reliability of connection between the prefabricated main beam and the prefabricated secondary beam is guaranteed, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of precast beam connection technology, specifically to the tongue-and-groove connection node of main and secondary beams for warehouses. Background Technology

[0002] During the construction of prefabricated housing structures, precast concrete components are often used for rapid assembly to improve construction efficiency and ensure that the building can be put into use quickly. During the installation of precast beams, tongue-and-groove joints are used to connect the main and secondary beams to ensure the reliability of the connection and improve construction efficiency.

[0003] Existing main and secondary beam connection nodes are generally connected by anchorage. The construction steps between the main and secondary beams are cumbersome, resulting in low construction efficiency and unclear economic benefits. Furthermore, shear failure at the connection point between the precast secondary beam head and the precast main beam occurs before bending failure, causing the tongue-and-groove connection point between the precast secondary beam and the precast main beam to break. Utility Model Content

[0004] The technical problem this utility model aims to solve is to overcome existing defects and provide a tongue-and-groove connection node for main and secondary beams in warehouses. Through the inclusion of shear-resistant steel plates, triangular steel plates, bottom steel plates, reinforcing steel plates, arc-shaped pads, hanging rods, locking grooves, and recesses, the precast secondary beams are connected to the precast main beams by inserting the beam heads into the locking grooves. This simplifies the installation steps of the precast main and secondary beams, avoids damage from concentrated local compressive stress, ensures that shear failure of the precast secondary beams does not precede bending failure, and that bending failure is a properly reinforced failure mode. The precast secondary beams have a high safety reserve in load-bearing capacity, guaranteeing the reliability of the connection between the precast main and secondary beams, and effectively solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a primary and secondary beam tongue-and-groove connection node for a warehouse, comprising a precast secondary beam, wherein a shear-resistant steel plate is provided on the inner side of the beam head at the end of the precast secondary beam, a triangular steel plate and a bottom pad are provided on the lower side of the shear-resistant steel plate, an arc-shaped pad is provided on the upper side of the shear-resistant steel plate, a hanger is provided on the upper side of the arc-shaped pad, a precast main beam is provided on the lower side of the precast secondary beam, and a groove is provided on the precast main beam corresponding to the position of the precast secondary beam.

[0006] Furthermore, a composite floor slab is provided on the upper side of the precast main beam and the precast secondary beam, and the beam head of the precast secondary beam rests in the groove of the precast main beam.

[0007] Furthermore, the shear-resistant steel plate is welded to the arc-shaped pad inside the precast secondary beam head, and the shear-resistant steel plate is also welded to the triangular steel plate and the bottom steel plate.

[0008] Furthermore, the arc-shaped pad is spot-welded to the shear-resistant steel plate for positioning.

[0009] Furthermore, the arc-shaped pad is equipped with welding rods for limiting its position.

[0010] Furthermore, the head of the precast secondary beam rests in the groove of the precast main beam.

[0011] Furthermore, composite floor slabs are integrally cast onto the precast main beams and the precast secondary beams.

[0012] Furthermore, the limiting arc plate has a semi-circular ring structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the secondary beam head formed by the shear-resistant steel plate, triangular steel plate, bottom steel plate, reinforcing steel plate, arc-shaped pad, and hanger, allows the precast secondary beam to be placed in the groove of the precast main beam when connected to the precast main beam. This simplifies the installation steps of the precast main beam and the precast secondary beam, and avoids damage caused by local compressive stress concentration. It ensures that the shear failure of the precast secondary beam does not precede the bending failure, and the bending failure is a properly reinforced failure mode. The precast secondary beam has a high safety reserve in bearing capacity, ensuring the reliability of the connection between the precast main beam and the precast secondary beam, and improving construction efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Schematic diagram of the main sectional structure;

[0017] Figure 3 This utility model Figure 2 Structural diagram with composite floor slabs removed;

[0018] Figure 4 This utility model Figure 3 Structural diagram excluding precast secondary beams;

[0019] Figure 5 This is a schematic diagram of the structure after the reinforcing steel plate and the shear-resistant steel plate are separated in this utility model.

[0020] In the diagram: 1. Precast main beam; 2. Precast secondary beam; 3. Composite floor slab; 4. Bottom steel plate; 5. Shear steel plate; 6. Reinforcing steel plate; 7. Triangular steel plate; 8. Arc-shaped pad; 9. Hanging rod; 10. Groove. 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] Please see Figure 1-5 This embodiment provides a technical solution: including a precast secondary beam 2, a shear-resistant steel plate 5 is provided at the beam head of the precast secondary beam 2, a bottom steel plate 4 is provided on the lower side of the shear-resistant steel plate 5, a triangular steel plate 7 is provided on one side of the bottom steel plate 4, an arc-shaped pad 8 is provided on the upper side of the shear-resistant steel plate 5, a hanging rod 9 is provided on the arc-shaped pad 8, a precast main beam 1 is provided on the lower side of the beam head of the precast secondary beam 2, and a groove 10 is provided on the precast main beam 1 corresponding to the position of the precast secondary beam 2.

[0023] like Figure 1-5 As shown, when the precast main beam 1 is connected to the precast secondary beam 2, the precast secondary beam 2 has a secondary beam head formed by shear steel plate 5, triangular steel plate 7, bottom steel plate 4, reinforcing steel plate 6, arc-shaped pad 8, and hanger 9. When connecting the precast secondary beam 2 to the precast main beam 1, the secondary beam head is directly placed in the groove 10 on the precast main beam 1, which simplifies the installation steps of the precast main beam 1 and the precast secondary beam 2, avoids damage caused by local compressive stress concentration, ensures the reliability of the connection between the precast main beam 1 and the precast secondary beam 2, and improves construction efficiency.

[0024] The precast main beam 1 and the precast secondary beam 2 are provided with a composite floor slab 3 on the upper side, and the beam head of the precast secondary beam 2 is supported and connected to the groove 10.

[0025] Shear-resistant steel plate 5 is welded to triangular steel plate 7, which is the scrap material cut from shear-resistant steel plate 5.

[0026] The arc-shaped pad 8 is spot-welded to the shear steel plate 5 for positioning, and the shear steel plate 5 is reinforced with steel plates 6 on both sides.

[0027] The composite floor slab 3 is connected to the precast main beam 1 and the precast secondary beam 2 by integral casting.

[0028] The arc-shaped pad 8 has a semi-circular ring structure, and the triangular steel plate 7, shear steel plate 5, bottom steel plate 4 and reinforcing steel plate 6 are all built into the beam head of the precast secondary beam 2.

[0029] The arc-shaped pad 8 and the lifting rod 9 are spot-welded to limit their connection. The lifting rod 9 is set inside the precast secondary beam 2.

[0030] The limiting arc plate 8 is a semi-circular ring structure. The limiting arc plate 8 can effectively transfer the internal force of the precast secondary beam 2 to the fixed steel plate 5, ensuring effective force transmission between the precast secondary beam 2 and the precast main beam 1.

[0031] The working principle of the primary and secondary beam tongue-and-groove connection node for warehouses provided by this utility model is as follows: Figures 1-5 As shown, when the precast main beam 1 is connected to the precast secondary beam 2, the precast secondary beam 2 has a secondary beam head formed by shear steel plate 5, triangular steel plate 7, bottom steel plate 4, reinforcing steel plate 6, arc-shaped pad 8, and hanger 9. When connecting the precast secondary beam 2 to the precast main beam 1, the secondary beam head is directly placed in the groove 10 on the precast main beam 1, which simplifies the installation steps of the precast main beam 1 and the precast secondary beam 2. At the same time, it can avoid damage caused by local compressive stress concentration, ensure the reliability of the connection between the precast main beam 1 and the precast secondary beam 2, improve construction efficiency, and ensure that the shear failure of the precast secondary beam 2 will not occur before the bending failure. Moreover, the bending failure is a properly reinforced failure mode. The bearing capacity of the precast secondary beam 2 has a high safety reserve. In the setting of hanger 9, the steel strand of hanger 9 is placed on the beam head side.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A primary and secondary beam tongue-and-groove connection node for a warehouse, including a precast secondary beam (2), characterized in that: The precast secondary beam (2) is provided with a shear-resistant steel plate (5) at the beam head, a bottom steel plate (4) is provided on the lower side of the shear-resistant steel plate (5), a triangular steel plate (7) is provided on one side of the bottom steel plate (4), an arc-shaped pad (8) is provided on the upper side of the shear-resistant steel plate (5), and a hanger (9) is provided on the arc-shaped pad (8). The precast main beam (1) is provided on the lower side of the beam head of the precast secondary beam (2), and a groove (10) is provided on the precast main beam (1) corresponding to the position of the precast secondary beam (2).

2. The mortise and tenon joint for main and secondary beams in a warehouse according to claim 1, characterized in that: The precast main beam (1) and the precast secondary beam (2) are provided with a composite floor slab (3) on the upper side, and the beam head of the precast secondary beam (2) is placed and connected to the groove (10).

3. The tongue-and-groove connection node for main and secondary beams in a warehouse according to claim 1, characterized in that: The shear-resistant steel plate (5) is welded to the triangular steel plate (7), and the triangular steel plate (7) is the scrap material cut from the shear-resistant steel plate (5).

4. The tongue-and-groove connection node for main and secondary beams in a warehouse according to claim 1, characterized in that: The arc-shaped pad (8) is spot-welded to the shear-resistant steel plate (5) for positioning, and the shear-resistant steel plate (5) is provided with reinforcing steel plates (6) on both sides.

5. The mortise and tenon joint for main and secondary beams in a warehouse according to claim 2, characterized in that: The composite floor slab (3) is connected to the precast main beam (1) and the precast secondary beam (2) by integral casting.

6. The mortise and tenon joint for main and secondary beams in a warehouse according to claim 4, characterized in that: The arc-shaped pad (8) has a semi-circular ring structure. The triangular steel plate (7), the shear steel plate (5), the bottom steel plate (4) and the reinforcing steel plate (6) are all built into the beam head of the precast secondary beam (2).

7. The mortise and tenon joint for main and secondary beams in a warehouse according to claim 1, characterized in that: The arc-shaped pad (8) is spot-welded to the lifting rod (9) for positioning.

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