A double-T plate seam connection structure

Abstract

This utility model relates to the field of building splice connection technology, and discloses a double-T plate splice connection structure, including a double-T plate body. A hollow block is fixedly connected to one side of the double-T plate body. An insertion groove is opened on the outer side of the hollow block. A groove is opened on the top of the hollow block. Reinforcing steel frames are fixedly connected to both sides of the hollow block. An insertion block is fixedly connected to the side of the double-T plate body away from the hollow block. A groove is opened on the top of the insertion block. Multiple connecting steel bars are embedded on the side of the double-T plate body away from the hollow block. In this utility model, the hollow block on one side of the double-T plate body slides into the insertion block on the other side of the double-T plate body, and the groove on the top of the hollow block matches the groove on the top of the insertion block. This achieves rapid initial positioning of the two plates. Then, the connecting steel bars are welded to the reinforcing steel frames to make the splice position fixed and stable, avoiding the problems of large positioning deviation and multiple adjustments in traditional splicing, thus laying the foundation for subsequent pouring.

Description

Technical Field

[0001] This utility model relates to the field of building joint connection technology, and in particular to a double-T plate joint connection structure. Background Technology

[0002] With the rapid development of the prefabricated building industry, double-T slabs, due to their strong load-bearing capacity and high construction efficiency, are widely used in the floor or roof structures of industrial plants, warehouses, and large public buildings. As a key component in the installation process of double-T slabs, the double-T slab joint connection structure plays a crucial role in connecting multiple independent double-T slab bodies into an integral load-bearing structure. This ensures that the building floor or roof can stably bear vertical and horizontal loads, while also ensuring the sealing of the joints to prevent water and grout leakage. This provides support for the structural safety and durability of prefabricated buildings.

[0003] In existing double-T slab joint connection technologies, most connection methods lack targeted positioning structures and rely solely on manual adjustment of the double-T slab positions for splicing. This often results in the splicing position deviating from the design requirements, leading to a significant need for subsequent adjustments. This increases the workload and also affects the connection quality due to positioning deviations. Furthermore, some slab joints lack effective support and leak-proof structures during pouring, causing concrete filler material to leak from the bottom of the joint. This results in an unsealed joint and uneven distribution of the filler material within the joint, failing to form a stable overall load-bearing system with the connecting steel reinforcement components. Consequently, this affects the sealing and load-bearing stability of the double-T slab connection, making it difficult to meet the high standards of construction quality and structural performance required for prefabricated buildings. Therefore, a double-T slab joint connection structure is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a double-T plate joint connection structure, which aims to improve the problems of large positioning deviation, grout leakage during joint pouring, and poor connection stability in the existing technology of double-T plate splicing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a double-T plate joint connection structure, comprising a double-T plate body, a hollow block fixedly connected to one side of the double-T plate body, an insertion groove opened on the outer side of the hollow block, a groove one opened on the top of the hollow block, steel reinforcement frames fixedly connected to both sides of the hollow block, an insertion block fixedly connected to the side of the double-T plate body away from the hollow block, a groove two opened on the top of the insertion block, and multiple connecting steel bars embedded on the side of the double-T plate body away from the hollow block; As a further description of the above technical solution: The connecting part of the two double-T plate bodies is provided with a support plate, and the bottom of the support plate is provided with two abutment posts; As a further description of the above technical solution: The outer side of the plug block is slidably connected to the inside of the plug slot; As a further description of the above technical solution: The first groove matches the second groove; As a further description of the above technical solution: The end of the connecting steel bar away from the double-T plate body abuts against one side of the other double-T plate body; As a further description of the above technical solution: The outer side of the steel reinforcement frame is welded to multiple connecting steel bars, and the end of the steel reinforcement frame is embedded inside the double-T plate body; As a further description of the above technical solution: The top of the abutting post abuts against the bottom of the support plate; As a further description of the above technical solution: The outer side of the steel reinforcement frame abuts against the inner wall of the support plate.

[0006] This utility model has the following beneficial effects: 1. In this utility model, the hollow block on one side of the double-T plate body slides into the plug block on the other side of the double-T plate body, and the groove one on the top of the hollow block matches the groove two on the top of the plug block. This drives the two double-T plate bodies to quickly complete the initial positioning. At the same time, the connecting steel bars embedded in the double-T plate body are welded to the steel bars on both sides of the hollow block. This achieves the effect that the splicing position of the two double-T plate bodies meets the design requirements and is initially fixed and stable. This avoids the problems of large positioning deviation and large amount of subsequent adjustment work in traditional splicing, and lays a good foundation for subsequent pouring operations. 2. In this utility model, with the cooperation of the support plate and the abutment column, the top of the abutment column supports the support plate to remain horizontal, and the inner wall of the support plate abuts against the steel reinforcement frame to restrict the displacement of the steel reinforcement frame. This allows the support plate to stably support the joint area of ​​the two double-T plate bodies. At the same time, the support plate can prevent the leakage of concrete filling material. Concrete is poured into the joint and the space formed by groove one and groove two to solve the problem of poor connection and uneven distribution of filling material caused by leakage in traditional joint pouring. Finally, the concrete, the connecting steel bars, and the steel reinforcement frame form an integral force system, ensuring the sealing and load-bearing stability of the two double-T plate bodies after connection. Attached Figure Description

[0007] Figure 1 This is a three-dimensional schematic diagram of a double-T plate seam connection structure proposed in this utility model; Figure 2 This is a schematic diagram of the structure of a support plate with a double-T plate seam connection structure proposed in this utility model; Figure 3This is a schematic diagram of the cross-sectional structure of a hollow block in a double-T plate seam connection structure proposed in this utility model.

[0008] Legend: 1. Rebar frame; 2. Groove 1; 3. Hollow block; 4. Support plate; 5. Double T plate body; 6. Connecting rebar; 7. Groove 2; 8. Insertion block; 9. Insertion groove; 10. Abutment column. Detailed Implementation

[0009] 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.

[0010] Reference Figures 1-3 This utility model provides an embodiment of a double-T plate joint connection structure, comprising a double-T plate body 5, a hollow block 3 fixedly connected to one side of the double-T plate body 5, an insertion groove 9 formed on the outer side of the hollow block 3, a groove 2 formed on the top of the hollow block 3, and steel reinforcement frames 1 fixedly connected to both sides of the hollow block 3. An insertion block 8 is fixedly connected to the side of the double-T plate body 5 away from the hollow block 3, and a groove 7 is formed on the top of the insertion block 8. Multiple connecting steel bars 6 are embedded on the side of the double-T plate body 5 away from the hollow block 3. A support plate 4 is provided at the connecting part of the double T plate body 5. Two abutment posts 10 are provided at the bottom of the support plate 4. The outer side of the plug block 8 is slidably connected to the inside of the plug groove 9. Groove 1 2 matches groove 2 7. The end of the connecting steel bar 6 away from the double T plate body 5 abuts against the side of another double T plate body 5. The outer side of the steel bar frame 1 is welded to multiple connecting steel bars 6. The end of the steel bar frame 1 is embedded inside the double T plate body 5. The top of the abutment post 10 abuts against the bottom of the support plate 4. The outer side of the steel bar frame 1 abuts against the inner wall of the support plate 4.

[0011] The double-T slab body 5 is the core load-bearing foundation of the entire connection structure, bearing the vertical and horizontal loads of the building, providing an installation carrier for various components, and ensuring the overall stability of the structure after connection. When the double-T slab body 5 is at the edge of the installation sequence or is the last component to be installed, it does not need to be connected to other double-T slab bodies 5 on both sides, and no splicing components are set. Only the flat end face of the double-T slab body 5 is retained, forming a smooth surface without additional protrusions or embedded parts. This smooth surface can directly cooperate with the surrounding structure of the building walls, supporting beams, and other components without the need for welding or concrete pouring across the slab joints. Only edge sealing or anti-corrosion treatment is required according to design requirements. The hollow block 3 is fixed on one side of the double-T slab body 5, and its outer side has an insertion groove. 9 provides a mating space for the plug-in block 8, achieving initial positioning of the two plates. The top groove 1 2 and groove 2 7 mate to form a filling space. The sides also provide fixed support points for the reinforcing steel frame 1, serving as a key transitional component for connection positioning and component installation. The reinforcing steel frame 1 is fixed to both sides of the hollow block 3, with its ends embedded in the double-T plate body 5. This enhances the structural strength of the double-T plate body 5 and the connection area, and allows it to be welded with the connecting reinforcing steel 6 to form a load-bearing frame across the plate joint, enabling force transfer between the two plates. Simultaneously, it abuts against the inner wall of the support plate 4, ensuring the stability of the support plate 4's installation position. Groove 1 2 is located on the top of the hollow block 3, and after matching with groove 2 7, forms a complete filling groove, providing space for the concrete filling material. This ensures the material fully encapsulates the reinforcing steel structure, improving connection sealing and overall integrity. 4 is installed at the bottom of the connection between the two double T-plate bodies 5 to support the joint area and prevent grout leakage during concrete pouring. It also assists in fixing the reinforcing steel frame 1 by abutting against it, preventing it from shifting during construction and ensuring uniform distribution of the filling material. The connecting steel bar 6 is embedded on the side of the double T-plate body 5 away from the hollow block 3, with one end abutting against the other double T-plate body 5 and welded to the reinforcing steel frame 1, forming a rigid connection between the two plates, improving the shear and tensile strength of the joint, and preventing relative displacement between the two plates during use. The second groove 7 is opened at the top of the insertion block 8, cooperating with the first groove 2 to form a filling space, ensuring that the concrete can fully fill the top of the joint, enhancing the top sealing, and increasing the contact area between the material and the double T-plate body 5, improving the bonding effect. The insertion block 8 is fixed to the double T-plate body. 5. On the side away from the hollow block 3, it slides with the interlocking groove 9 to quickly achieve the initial positioning of the two double T-plate bodies 5, ensuring uniform plate joint width, reducing the workload of splicing and adjustment, and constraining the two plates in the horizontal direction to prevent lateral displacement after splicing; the interlocking groove 9 is opened on the outside of the hollow block 3, and achieves the initial connection and positioning of the two plates through cooperation with the interlocking block 8, ensuring that the plate joint width is consistent, laying a precise foundation for subsequent welding and pouring, and avoiding the connection quality being affected by positioning deviation; the abutment column 10 is set at the bottom of the support plate 4 to provide stable support for the support plate 4, transfer the weight of the support plate 4 and the filling material to the structure below, prevent the support plate 4 from deforming or sinking under force, ensure that the support plate 4 is always horizontal, ensure the stability of the pouring process and the uniform distribution of the filling material, and its bottom abuts against the load-bearing beam.

[0012] Working Principle: In the operation of this double-T slab joint connection structure, the two double-T slab bodies 5 are first spliced ​​and positioned. A hollow block 3 on one side of one double-T slab body 5 cooperates with an insert block 8 on the other side. Simultaneously, the groove 1 2 on the top of the hollow block 3 matches the groove 2 7 on the top of the insert block 8. Through the synergistic effect of the hollow block 3, the insert block 8, groove 1 2, and groove 2 7, the relative positions of the two double-T slab bodies 5 are quickly determined, ensuring uniform joint width and precise positioning, avoiding deviations in subsequent connections. After positioning, the connecting steel bar 6 embedded on the side of the double-T slab body 5 away from the hollow block 3 comes into contact with the steel reinforcement frame 1 on both sides of the hollow block 3. The connecting steel bar 6 and the steel reinforcement frame 1 are then welded together. The two double-T slab bodies 5 are initially fixed using a welded structure, establishing a load-bearing connection foundation across the slab joint and preventing relative displacement of the two double-T slab bodies 5 during subsequent operations. After initial fixing, a support plate 4 is installed at the bottom of the joint between the two double-T slab bodies 5, providing support for the joint area. Then, concrete filling material is poured into the joint and the space formed by matching groove 1 2 and groove 2 7. The support plate 4 effectively prevents grout leakage during pouring, ensuring that the filling material fully fills the joint and groove space. After the filling material solidifies, it forms a stable connection system together with the connecting steel bar 6 and the steel frame 1, ultimately achieving reliable fixing of the two double-T slab bodies 5 and ensuring the stability and load-bearing capacity of the overall structure.

[0013] 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 double-T plate seam connection structure, comprising a double-T plate body (5), characterized in that: A hollow block (3) is fixedly connected to one side of the double T plate body (5). A plug groove (9) is provided on the outer side of the hollow block (3). A groove 1 (2) is provided on the top of the hollow block (3). A steel bar frame (1) is fixedly connected to both sides of the hollow block (3). A plug block (8) is fixedly connected to the side of the double T plate body (5) away from the hollow block (3). A groove 2 (7) is provided on the top of the plug block (8). Multiple connecting steel bars (6) are embedded on the side of the double T plate body (5) away from the hollow block (3).

2. The double-T plate seam connection structure according to claim 1, characterized in that: The two double-T plate bodies (5) are connected by a support plate (4), and the bottom of the support plate (4) is provided with two abutment posts (10).

3. The double-T plate seam connection structure according to claim 1, characterized in that: The outer side of the plug block (8) is slidably connected inside the plug slot (9).

4. The double-T plate seam connection structure according to claim 1, characterized in that: The first groove (2) matches the second groove (7).

5. The double-T plate seam connection structure according to claim 1, characterized in that: The end of the connecting steel bar (6) away from the double-T plate body (5) abuts against the other side of the double-T plate body (5).

6. The double-T plate seam connection structure according to claim 1, characterized in that: The outer side of the steel reinforcement frame (1) is welded to multiple connecting steel bars (6), and the end of the steel reinforcement frame (1) is embedded inside the double T plate body (5).

7. The double-T plate seam connection structure according to claim 2, characterized in that: The top of the abutting post (10) abuts against the bottom of the tray (4).

8. The double-T plate seam connection structure according to claim 2, characterized in that: The outer side of the steel frame (1) abuts against the inner wall of the support plate (4).

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