Floor seismic splicing structure

Abstract

The utility model discloses a floor anti-seismic splicing structure belongs to floor anti-seismic technical field, through the combination of multistage energy dissipation mechanism and reinforced design, has improved the anti-seismic performance of building structure significantly, first, the main body frame adopts truss type connection, and the surface contact design of protruding plate and connecting plate makes the load distribution more uniform, effectively avoids the stress concentration phenomenon produced by traditional point connection, and cooperates the prestress restraint of cross connecting plate system. The floor anti-seismic splicing structure includes the base plate, and the protruding plate is integrally formed and is symmetrically arranged on the base plate, the base plate is symmetrically arranged with two, the protruding plate on the side edge of the adjacent side of two base plates is installed with the connecting plate, the connecting place of protruding plate and connecting plate is connected and fixed through the first fixed plate, and the protruding plate and the first fixed plate and the connecting plate and the first fixed plate are fixedly connected through the first fixed bolt, and the side edge away from the protruding plate of base plate is symmetrically installed with the buffer component of auxiliary buffering.

Description

Technical Field

[0001] This utility model belongs to the field of seismic resistance technology for floor slabs, and specifically relates to a seismic-resistant splicing structure for floor slabs. Background Technology

[0002] A floor slab vertically divides a building into several levels and transfers the vertical loads of people and furniture, as well as the slab's own weight, to the foundation through walls, beams, or columns. Based on the materials used, floor slabs can be classified into several types, including wooden floor slabs, brick arch floor slabs, reinforced concrete floor slabs, and steel-lined load-bearing floor slabs. Prefabricated reinforced concrete floor slabs typically have reinforcing bars extending from the ends of the slab. After on-site assembly, the joints are filled with concrete to enhance overall integrity. This type of floor slab is divided into several components, including beams and slabs, which are prefabricated in a prefabrication plant or on-site before installation. Its advantages include saving on formwork, improving working conditions during fabrication, and accelerating construction; however, its overall integrity is relatively poor, and it requires certain lifting and installation equipment.

[0003] Most existing prefabricated floor slabs are fixed together by concrete pouring. However, rigidly connected concrete floor slabs do not have shock absorption function and are prone to vibration and stress concentration when under stress, which can lead to fracture. Therefore, a seismic splicing structure for floor slabs is needed to help solve this problem. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a seismic-resistant splicing structure for floor slabs. This seismic-resistant splicing structure significantly improves the seismic performance of building structures through a combination of multi-level energy dissipation mechanisms and reinforced design. First, the main frame adopts a truss-type connection, and the surface contact design of the protruding plate and the connecting plate makes the load distribution more uniform, effectively avoiding the stress concentration phenomenon caused by traditional point connections. Combined with the prestressed constraint of the cross-connecting plate system, the structure further enhances the shear strength of the joints. Combined with the tension constraint of the connecting plate system, it effectively suppresses inter-story displacement at the floor slab splice.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a seismic splicing structure for floor slabs. The seismic splicing structure for floor slabs includes a base plate, on which protrusions are integrally formed and symmetrically arranged. There are two base plates symmetrically arranged. A connecting plate is installed between the protrusions on adjacent sides of the two base plates. The connection between the protrusions and the connecting plate is fixed by a first fixing plate. The protrusions and the first fixing plate, as well as the connecting plate and the first fixing plate, are fixedly connected by a first fixing bolt.

[0008] Auxiliary buffer components are symmetrically installed on the side of the substrate away from the protrusion.

[0009] Optionally, the buffer component includes symmetrically arranged mounting plates, one mounting plate is fixed with a through post, and another through post is fixed with a sleeve. The through post and the sleeve are fitted together, and a friction pad and a steel sheet are fitted onto the outer edge of the sleeve.

[0010] Optionally, a plurality of friction pads and steel sheets are provided, with the friction pads and steel sheets spaced apart from each other.

[0011] Optionally, the friction pad is symmetrically provided with insertion holes, and the top and bottom of the steel sheet are provided with limiting posts that cooperate with the insertion holes for insertion.

[0012] Optionally, fixing holes are drilled at all four corners of the mounting plate, and the mounting plate is fixed to the base plate at the fixing holes by a third fixing bolt.

[0013] Optionally, a first connecting plate is fixed between the two protruding plates, and the two connecting plates are connected and fixed by a second connecting plate. The first connecting plate and the second connecting plate are connected by a second fixing plate, and the first connecting plate and the second fixing plate, as well as the second connecting plate and the second fixing plate, are all connected and fixed by a second fixing bolt.

[0014] Optionally, a reinforcing plate is obliquely fixed to the outer side of the substrate and the protrusion.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model significantly improves the seismic performance of building structures by combining a multi-level energy dissipation mechanism with a reinforced design. First, the main frame adopts a truss connection, and the surface contact design of the protruding plate and the connecting plate makes the load distribution more uniform, effectively avoiding the stress concentration phenomenon caused by traditional point connections. Combined with the prestress constraint of the cross-connecting plate system, the triangular support structure of the reinforcing plate increases the shear strength of the nodes. Combined with the tension constraint of the connecting plate system, it effectively suppresses the inter-story displacement at the floor slab splice.

[0018] This invention can dissipate vibration energy through a friction-metal dual energy dissipation mechanism of the buffer component. The elastic deformation stage of the friction pad absorbs low-frequency vibration, while the plastic deformation stage of the steel sheet absorbs high-frequency impact. This graded energy dissipation mode prolongs the natural vibration period of the structure and avoids resonance effects. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0022] Figure 3 This is a schematic diagram of the structure of the buffer component of this utility model;

[0023] Figure 4 This is a half-sectional view of the buffer component of this utility model.

[0024] The markings in the attached diagram are as follows: 1. Base plate; 2. Protruding plate; 3. Connecting plate; 31. Reinforcing plate; 4. First fixing plate; 5. First fixing bolt; 6. First connecting plate; 7. Second connecting plate; 8. Second fixing plate; 81. Second fixing bolt; 9. Buffer member; 10. Mounting plate; 11. Fixing hole; 12. Through post; 13. Sleeve; 14. Limiting post; 15. Friction pad; 16. Steel sheet; 17. Third fixing bolt. Detailed Implementation

[0025] 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.

[0026] This specific implementation method is a seismic-resistant splicing structure for floor slabs, such as... Figure 1 and Figure 2As shown, the seismic splicing structure of the floor slab includes a base plate 1. Two protruding plates 2 are integrally formed and symmetrically arranged on the base plate 1. A connecting plate 3 is installed between the protruding plates 2 on adjacent sides of the two base plates 1. The connection between the protruding plate 2 and the connecting plate 3 is fixed by a first fixing plate 4. The protruding plate 2 and the first fixing plate 4, as well as the connecting plate 3 and the first fixing plate 4, are fixedly connected by a first fixing bolt 5. A first connecting plate 6 is fixed between the two protruding plates 2. The two connecting plates 3 are fixed by a second connecting plate 7. The first connecting plate 6 and the second connecting plate 7 are connected by a second fixing plate 8. The first connecting plate 6 and the second fixing plate 8, as well as the second connecting plate 7 and the second fixing plate 8, are all fixed by a second fixing bolt 81. A reinforcing plate 31 is obliquely fixed to the outer side of the base plate 1 and the protruding plate 2.

[0027] The main frame adopts a truss connection. The surface contact design of the protruding plate 2 and the connecting plate 3 makes the load distribution more uniform and effectively avoids the stress concentration phenomenon caused by traditional point connection. With the prestress constraint of the cross connecting plate system, the triangular support structure of the reinforced plate 31 increases the shear strength of the node. With the tension constraint of the connecting plate system, it effectively suppresses the inter-story displacement at the floor splice.

[0028] Reference Figure 1 , Figure 3 and Figure 4 As shown, auxiliary buffer components 9 are symmetrically installed on the side of the substrate 1 away from the protruding plate 2. The buffer components 9 include symmetrically arranged mounting plates 10. Fixing holes 11 are drilled at the four corners of the mounting plates 10. The mounting plates 10 are fixed to the substrate 1 by the fixing holes 11 through the third fixing bolts 17. One mounting plate 10 is fixed with a through post 12, and another through post 12 is fixed with a sleeve 13. The through post 12 and the sleeve 13 are fitted together. Friction pads 15 and steel plates 16 are fitted and installed on the outer edge of the sleeve 13. Several friction pads 15 and steel plates 16 are provided, and they are spaced apart. The friction pads 15 are symmetrically provided with insertion holes. The top and bottom of the steel plates 16 are provided with limiting posts 14 that are fitted and inserted into the insertion holes.

[0029] Through the buffer component 9, the rubber substrate of the friction pad 15 undergoes elastic deformation, and the corrugated structure of the steel sheet 16 undergoes plastic deformation. The two work together to convert vibration energy into heat energy. At the same time, the vibration energy can be consumed through the friction-metal dual energy consumption mechanism of the buffer component 9. The elastic deformation stage of the friction pad 15 absorbs low-frequency vibration, and the plastic deformation stage of the steel sheet 16 absorbs high-frequency impact. This graded energy consumption mode prolongs the natural vibration period of the structure and avoids resonance effect.

[0030] Working principle:

[0031] During operation, two symmetrically arranged base plates 1 form the main load-bearing frame through protruding plates 2 and connecting plates 3. The contact surfaces of protruding plates 2 and connecting plates 3 are fixed by a first fixing plate 4, and a first fixing bolt 5 passes through all three to form a rigid connection. This design creates a truss structure at the floor slab joint, bearing the load as a whole. When a lateral load is applied, the force is evenly transmitted to the base plates 1 on both sides through the contact surfaces of protruding plates 2 and connecting plates 3, avoiding stress concentration. The first connecting plate 6 and the second connecting plate 7 form a cross-support system through the second fixing plate 8. The preload of the second fixing bolt 81 generates initial tension in the connecting plate system. When the floor slab torsional, the connecting plate system constrains the relative displacement of the base plates 1 through geometric invariance. The triangular cross-section design of the reinforcing plate 31 decomposes the oblique load into axial force, significantly improving the shear strength of the connection node between protruding plates 2 and base plates 1.

[0032] The buffer component 9 forms a relatively sliding connection pair through the axial insertion of the through-post 12 and the sleeve 13. When the seismic wave generates longitudinal vibration, the through-post 12 undergoes a slight axial displacement within the sleeve 13, forcing the friction pad 15 and the steel plate 16 to generate frictional damping. The rubber substrate of the friction pad 15 undergoes elastic deformation, and the corrugated structure of the steel plate 16 undergoes plastic deformation. The two work together to convert vibration energy into heat energy for dissipation. The limiting design of the pin and the insertion hole ensures that the friction assembly remains axially aligned during vibration.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A seismic-resistant splicing structure for floor slabs, comprising a base plate (1), characterized in that, The substrate (1) is integrally formed with symmetrical protrusions (2). There are two substrates (1) symmetrically arranged. A connecting plate (3) is installed between the protrusions (2) on the adjacent side of the two substrates (1). The connection between the protrusions (2) and the connecting plate (3) is connected and fixed by a first fixing plate (4). The protrusions (2) and the first fixing plate (4), as well as the connecting plate (3) and the first fixing plate (4), are fixedly connected by a first fixing bolt (5). A buffer member (9) for auxiliary buffering is symmetrically installed on the side of the substrate (1) away from the protrusion (2).

2. The seismic-resistant splicing structure for floor slabs according to claim 1, characterized in that, The buffer component (9) includes symmetrically arranged mounting plates (10), one mounting plate (10) is fixed with a through post (12), and another through post (12) is fixed with a sleeve (13). The through post (12) and the sleeve (13) are fitted together. A friction pad (15) and a steel sheet (16) are fitted on the outer edge of the sleeve (13).

3. The seismic-resistant splicing structure for floor slabs according to claim 2, characterized in that, Both the friction pad (15) and the steel sheet (16) are provided in multiples, and the friction pad (15) and the steel sheet (16) are spaced apart.

4. The seismic-resistant splicing structure for floor slabs according to claim 3, characterized in that, The friction pad (15) is symmetrically provided with insertion holes, and the top and bottom of the steel sheet (16) are provided with limiting posts (14) that are inserted into the insertion holes.

5. A seismic-resistant splicing structure for floor slabs according to claim 2, characterized in that, Fixing holes (11) are drilled at all four corners of the mounting plate (10), and the mounting plate (10) is fixed to the base plate (1) by a third fixing bolt (17) at the fixing holes (11).

6. The seismic-resistant splicing structure for floor slabs according to claim 1, characterized in that, A first connecting plate (6) is fixed between the two protruding plates (2), and the two connecting plates (3) are connected and fixed by a second connecting plate (7). The first connecting plate (6) and the second connecting plate (7) are connected by a second fixing plate (8). The first connecting plate (6) and the second fixing plate (8) and the second connecting plate (7) and the second fixing plate (8) are both connected and fixed by a second fixing bolt (81).

7. The seismic-resistant splicing structure for floor slabs according to claim 1, characterized in that, A reinforcing plate (31) is obliquely fixed on the outer side of the substrate (1) and the protrusion (2).

Images