A new prestressed concrete double T plate

Abstract

This utility model relates to the technical field of double-T concrete slabs and discloses a novel prestressed concrete double-T slab, comprising a first concrete slab, on which two ribs are fixedly installed. A second concrete slab is fixedly installed on the side of the first concrete slab opposite to the ribs, and a pressure plate is fixedly installed on the second concrete slab. The first concrete slab has an exposed surface and is equipped with positioning and fixing components. This utility model, through precise positioning, enhanced sealing, and simplified fixing design, significantly improves installation accuracy, structural stability, and construction efficiency, while effectively preventing concrete leakage during pouring.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete double-T slabs, specifically a novel prestressed concrete double-T slab. Background Technology

[0002] Double-T slabs, named for their cross-sectional shape resembling two connected "T"s, are precast prestressed concrete components widely used in industrial and civil buildings. They are mainly composed of a wide flange at the top and two vertical ribs at the bottom, possessing excellent mechanical properties and space utilization. Double-T slabs can be used not only as floor slabs or roof slabs, but also for infrastructure projects such as bridges.

[0003] The patent currently published with the announcement number CN222065903U discloses a large-span prestressed concrete double-T composite slab, which includes a slab body, longitudinal reinforcement and transverse reinforcement. The top of the slab body is provided with longitudinal reinforcement, and the top of the longitudinal reinforcement is provided with transverse reinforcement. The middle of the transverse reinforcement is provided with a connecting part. The sides of the longitudinal reinforcement are provided with truss reinforcement. The bottom of both sides of the slab body are provided with fixing cavities. The fixing cavity includes a first embedded reinforcement, a second embedded reinforcement and a steel cage.

[0004] However, the above-mentioned device has the following problems in use: A series of technical challenges are often encountered during the installation of this type of double-T concrete slab. First, when splicing adjacent double-T slabs, minor errors in design or construction may lead to inaccurate positioning, which not only increases the installation difficulty but may also affect the overall integrity of the structure. Second, even if initial splicing is successfully achieved through adjustments, the gaps between the edges of the double-T slabs can easily lead to leakage during subsequent concrete pouring. To solve this problem, additional joint measures are usually required, such as using sealing materials or other methods to seal these gaps. However, these additional steps undoubtedly increase the time and complexity of construction, and also place higher demands on the technical skills of the construction personnel. Furthermore, improper joint treatment may, in the long run, cause structural leakage, corrosion, and other problems, affecting the service life of the building. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a new type of prestressed concrete double-T slab, which significantly improves construction quality and structural performance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A novel prestressed concrete double-T slab includes a first concrete slab with two ribs fixedly installed on it. A second concrete slab is fixedly installed on the side of the first concrete slab away from the ribs. A pressure plate is fixedly installed on the second concrete slab. An exposed surface is formed on the first concrete slab. A positioning component and a fixing component are provided on the first concrete slab.

[0008] Preferably, the exposed surface is located in the portion of the first concrete slab that does not overlap with the second concrete slab, and the exposed surface is adapted to the pressure plate.

[0009] Preferably, the positioning component includes positioning posts, which are fixedly installed at equal intervals on the exposed surface, and the pressure plate has positioning grooves at corresponding positions that are adapted to the positioning posts.

[0010] Preferably, a sealing gasket is inlaid on the exposed surface opposite to the rib beam.

[0011] Preferably, the fixing component includes a fixing hole, a rod, and a slot. The fixing hole is formed on the positioning post, the slot is formed on the pressure plate, and the rod is movably mounted on the pressure plate. The rod is adapted to the fixing hole and the slot.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) This utility model adopts the design of positioning columns and positioning grooves, which greatly simplifies the splicing process between adjacent plates. The positioning columns are fixedly installed at equal intervals on the exposed surface of the first concrete slab, while the pressure plate is provided with positioning grooves that match the positioning columns. During the installation process, the positioning columns can be quickly and accurately aligned by simply inserting them into the corresponding positioning grooves. Construction personnel can complete the splicing without complicated measurements, which significantly reduces human error. This design not only simplifies the construction steps, but also ensures that the components can be quickly and accurately assembled, providing a solid foundation for subsequent processes.

[0014] (2) This utility model, through the design of fixing holes, insert rods, and slots, enables rapid connection while simultaneously applying necessary pressure to ensure a sealing effect. Fixing holes are located on the positioning posts, slots are set on the pressure plate, and insert rods are movably mounted on the pressure plate and adapted to the fixing holes and slots. After initial positioning, inserting the insert rods into the fixing holes and slots not only securely connects the components but also ensures that the pressure plate applies continuous pressure to the sealing gasket, filling the tiny gaps between the contact surfaces and further enhancing the sealing performance. This design not only simplifies the construction process and reduces additional joint treatment steps but also improves the safety and convenience of construction, ensuring efficient and high-quality construction results. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a novel prestressed concrete double-T slab proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the installation position of a novel prestressed concrete double-T plate sealing gasket proposed in this utility model;

[0017] Figure 3 This is a schematic diagram showing the location of a novel prestressed concrete double-T slab slot proposed in this utility model.

[0018] Figure 4 This is a schematic diagram showing the location of the positioning groove for a novel prestressed concrete double-T slab proposed in this utility model.

[0019] In the diagram: 1. First concrete slab; 2. Rib beam; 3. Second concrete slab; 4. Pressure plate; 5. Exposed surface; 6. Positioning post; 7. Fixing hole; 8. Sealing gasket; 9. Positioning groove; 10. Insert rod; 11. Slot. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1 to 4 A novel prestressed concrete double-T slab includes a first concrete slab 1, two rib beams 2 fixedly installed on the first concrete slab 1, a second concrete slab 3 fixedly installed on the side of the first concrete slab 1 away from the rib beams 2, a pressure plate 4 fixedly installed on the second concrete slab 3, an exposed surface 5 on the first concrete slab 1, and positioning components and fixing components provided on the first concrete slab 1.

[0022] This design allows the exposed surface 5 of the double T-plate to provide additional support for the second concrete slab 3 and the pressure plate 4 during installation, while the presence of the exposed surface 5 provides a basis for subsequent precise docking.

[0023] By staggering the positions of the upper and lower joints, concrete leakage from the joints can be effectively prevented during pouring.

[0024] Preferably, the first concrete slab 1, the rib beam 2, the second concrete slab 3, and the pressure plate 4 can be cast as a single piece.

[0025] The exposed surface 5 is located in the part of the first concrete slab 1 that does not overlap with the second concrete slab 3, and the exposed surface 5 is adapted to the pressure plate 4. In this way, it is ensured that the pressure plate 4 can accurately cover a specific area of ​​the first concrete slab 1, thereby achieving a tighter splicing effect and reducing construction errors.

[0026] The positioning component includes positioning posts 6, which are fixedly installed at equal intervals on the exposed surface 5. The pressure plate 4 has positioning grooves 9 at corresponding positions that are adapted to the positioning posts 6. In the actual installation process, by inserting the positioning posts 6 into the positioning grooves 9 on the pressure plate 4, the precise alignment between adjacent double T plates can be ensured, which greatly improves the installation efficiency and accuracy.

[0027] A sealing gasket 8 is inlaid on the side of the exposed surface 5 away from the rib beam 2. The sealing gasket 8 plays a key role in the pouring of concrete. It can further prevent concrete from leaking from the gaps and ensure the integrity and durability of the structure.

[0028] The fixing component includes a fixing hole 7, a plug rod 10, and a slot 11. The fixing hole 7 is opened on the positioning post 6, the slot 11 is opened on the pressure plate 4, and the plug rod 10 is movably mounted on the pressure plate 4. The plug rod 10 is adapted to the fixing hole 7 and the slot 11.

[0029] Preferably, after the insertion rod 10 is fully inserted, it needs to be cut and then fixed by welding or other methods.

[0030] After the initial positioning is completed, the connection is further reinforced by inserting the insert rod 10 into the fixing hole 7 and the slot 11. This not only enhances the safety and stability of the overall structure and prevents accidental movement, but also ensures that the pressure plate 4 always applies a certain pressure to the sealing gasket 8. This not only ensures that the gap between the sealing gasket 8 and the contact surface of the pressure plate 4 is effectively filled, but also further enhances the sealing effect during pouring and prevents concrete leakage.

[0031] The workflow of this utility model is as follows: If integral casting is selected, the corresponding mold is first built, and the concrete for the first concrete slab 1, the rib beam 2, the second concrete slab 3, and the pressure plate 4 is poured according to the design requirements and allowed to solidify. During this process, exposed surfaces 5, positioning columns 6, fixing holes 7, positioning grooves 9, slots 11, and other structures are reserved simultaneously.

[0032] When installing adjacent double T-plates, align the positioning post 6 of one double T-plate with the positioning groove 9 on the pressure plate 4 of the other double T-plate, and then insert the positioning post 6 into the positioning groove 9. Through the cooperation of the positioning post 6 and the positioning groove 9, precise alignment between adjacent double T-plates is achieved, and the relative position of the double T-plates is determined.

[0033] Since a sealing gasket 8 is embedded on the side of the exposed surface 5 away from the rib beam 2, after the double T-plates are positioned, the sealing gasket 8 will be located between the contact surfaces of the two double T-plates. The pressure plate 4 applies a certain pressure to the sealing gasket 8 to prepare for sealing during subsequent concrete pouring.

[0034] After the double T-plates are initially positioned, the insert rod 10 is movably mounted on the pressure plate 4 and inserted into the fixing hole 7 and slot 11. The fit between the insert rod 10 and the fixing hole 7 and slot 11 further strengthens the connection between adjacent double T-plates and enhances the stability of the overall structure.

[0035] After the double T plate is positioned and fixed, concrete is poured. At this time, due to the staggered positions of the upper and lower joints, the sealing effect of the sealing gasket 8, and the pressure of the pressure plate 4 on the pressure plate 4 and the sealing gasket 8, concrete leakage from the joints can be effectively prevented.

[0036] 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 novel prestressed concrete double-T slab, comprising a first concrete slab (1), wherein two rib beams (2) are fixedly installed on the first concrete slab (1), characterized in that, A second concrete slab (3) is fixedly installed on the side of the first concrete slab (1) away from the rib beam (2). A pressure plate (4) is fixedly installed on the second concrete slab (3). An exposed surface (5) is opened on the first concrete slab (1). A positioning component and a fixing component are provided on the first concrete slab (1).

2. The novel prestressed concrete double-T slab according to claim 1, characterized in that, The exposed surface (5) is located in the part of the first concrete slab (1) that does not overlap with the second concrete slab (3), and the exposed surface (5) is adapted to the pressure plate (4).

3. A novel prestressed concrete double-T slab according to claim 1 or 2, characterized in that, The positioning component includes positioning posts (6), which are fixedly installed at equal intervals on the exposed surface (5). The pressure plate (4) has positioning grooves (9) that are adapted to the positioning posts (6) at corresponding positions.

4. A novel prestressed concrete double-T slab according to claim 1 or 2, characterized in that, A sealing gasket (8) is inlaid on the side of the exposed surface (5) away from the rib (2).

5. A novel prestressed concrete double-T slab according to claim 3, characterized in that, A sealing gasket (8) is inlaid on the side of the exposed surface (5) away from the rib (2).

6. A novel prestressed concrete double-T slab according to claim 1, 2, or 5, characterized in that, The fixing component includes a fixing hole (7), a plug (10), and a slot (11). The fixing hole (7) is opened on the positioning post (6), the slot (11) is opened on the pressure plate (4), and the plug (10) is movably installed on the pressure plate (4). The plug (10) is adapted to the fixing hole (7) and the slot (11).

7. A novel prestressed concrete double-T slab according to claim 4, characterized in that, The fixing component includes a fixing hole (7), a plug (10), and a slot (11). The fixing hole (7) is opened on the positioning post (6), the slot (11) is opened on the pressure plate (4), and the plug (10) is movably installed on the pressure plate (4). The plug (10) is adapted to the fixing hole (7) and the slot (11).

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