High-performance grouting sleeve connecting piece for rapid assembly of bridge

Abstract

The application relates to a high-performance grouting sleeve connecting piece for rapid assembly of a bridge, and relates to the technical field of bridge splicing construction.The connecting piece comprises an upper grouting sleeve embedded into a bridge and used for inserting a splicing steel bar in the bridge, a connecting seat fixed at the bottom of the upper grouting sleeve, an adjusting block slidingly connected in the connecting seat, and a lower grouting sleeve fixed below the adjusting block and used for inserting an installation steel bar in a pier; an adjusting groove is arranged at the bottom of the connecting seat; the lower grouting sleeve can slide in the adjusting groove; the adjusting block abuts against the top of the adjusting groove and seals the top of the adjusting groove; a butt joint cavity is arranged in the connecting seat and communicates with the upper grouting sleeve and the lower grouting sleeve; a grouting pipe is fixed at one side of the top of the upper grouting sleeve; and a grouting inlet pipe is fixed at one side of the bottom of the lower grouting sleeve.The application has the effect of accurately and quickly butt joining the grouting sleeve with the installation steel bar at the top of the pier, reducing the difficulty of splicing the bridge with the pier, and improving the splicing efficiency.

Description

Technical Field

[0001] This application relates to the field of bridge splicing construction technology, and in particular to high-performance grouting sleeve connectors for rapid bridge assembly. Background Technology

[0002] In the field of bridge construction, with the continuous growth of traffic demand and the increasing requirements for engineering construction efficiency, rapid bridge assembly technology has become increasingly important. Rapid assembly technology can effectively shorten the construction period, reduce construction costs, and reduce the impact on the surrounding environment.

[0003] In traditional bridge assembly processes, grouting is commonly used to connect the bridge structure to the piers. This involves embedding a grouting sleeve within the bridge structure and simultaneously fitting it over the outer side of the splicing reinforcing bars. During connection, the bottom of the grouting sleeve embedded in the bridge is inserted into the outer side of the pre-embedded reinforcing bars at the top of the pier, and then grout is injected under pressure through the grout inlet pipe on the sleeve. This grouting method effectively connects the bridge structure to the piers, and the solidified grout provides high connection strength.

[0004] However, when using grouting to splice bridges and piers, the grouting sleeve needs to be precisely aligned with the pre-embedded reinforcing steel bars at the top of the pier. This method is difficult to adapt to potential positional deviations during bridge assembly. If a positional deviation occurs, the position cannot be flexibly adjusted, which will prevent the grouting sleeve from being properly fitted onto the outside of the reinforcing steel bars at the top of the pier. This will affect the grouting process and the quality and stability of the bridge-pier connection. Utility Model Content

[0005] In order to enable the grouting sleeve to be precisely and quickly connected with the installed steel bars on the top of the bridge pier, reduce the difficulty of splicing the bridge and the bridge pier, and improve the construction efficiency, this application provides a high-performance grouting sleeve connector for rapid bridge assembly.

[0006] The high-performance grouting sleeve connector for rapid bridge assembly provided in this application adopts the following technical solution: A high-performance grouting sleeve connector for rapid bridge assembly includes an upper grouting sleeve pre-embedded in the bridge for inserting spliced ​​steel bars, a connecting seat fixed to the bottom of the upper grouting sleeve, an adjusting block slidably connected in the connecting seat, and a lower grouting sleeve fixed below the adjusting block for inserting steel bars installed in the pier. The bottom of the connecting seat has an adjusting groove, and the lower grouting sleeve can slide in the adjusting groove. The adjusting block abuts against the top of the adjusting groove and seals the top of the adjusting groove. The connecting seat has a docking cavity inside, which is connected to both the upper grouting sleeve and the lower grouting sleeve. A grout outlet pipe is fixed on one side of the top of the upper grouting sleeve, and a grout inlet pipe is fixed on one side of the bottom of the lower grouting sleeve.

[0007] By adopting the above technical solution, the lower grouting sleeve is used to connect with the reinforcing bars installed inside the bridge pier. The connecting cavity inside the connecting seat is connected to both the upper and lower grouting sleeves. Grout is injected from the inlet pipe on one side of the bottom of the lower grouting sleeve, and the grout flows into the upper grouting sleeve through the connecting cavity. At the same time, the adjusting block abuts against the top of the adjusting groove and seals it, which can prevent the grout from leaking from the adjusting groove and ensure the grouting quality. When the grout is full, it flows out from the outlet pipe on one side of the top of the upper grouting sleeve, thus completing the grouting operation. When the grouting sleeve is misaligned with the reinforcing bars pre-embedded in the top of the bridge pier, the lower grouting sleeve can slide in the adjusting groove because the adjusting block is slidably connected in the connecting seat. By sliding the adjusting block, the lower grouting sleeve moves in the adjusting groove, thereby adjusting the position of the lower grouting sleeve to align with the reinforcing bars pre-embedded in the top of the bridge pier. The lower grouting sleeve has an adjustable docking position to accommodate possible misalignment of the reinforcing bars during installation, ensuring the connection between the grouting sleeve connector and the pier and bridge, and improving the efficiency and accuracy of rapid bridge assembly.

[0008] Optionally, the top of the adjusting block is fixed with a plurality of connecting plates extending into the docking cavity, and the connecting seat is provided with a clearance groove adapted to the connecting plate along the moving direction of the adjusting block.

[0009] By adopting the above technical solution, when the adjusting block moves within the connecting seat, multiple connecting plates fixed to the top of the adjusting block will move together with the adjusting block within the docking cavity. The clearance groove opened within the connecting seat provides space for the movement of the connecting plates, preventing them from being obstructed during the movement of the adjusting block. At the same time, the connecting plates increase the contact area between the adjusting block and the concrete poured in the connecting cavity. After the concrete poured in the connecting cavity solidifies, it can firmly lock the position of the adjusting block, thereby locking the position of the lower grouting sleeve.

[0010] Optionally, the sidewall of the connecting plate is fixed with protruding attachment particles.

[0011] By adopting the above technical solution, the protruding attachment particles fixed on the side wall of the connecting plate will fully contact the concrete in the docking cavity. As the concrete solidifies, the attachment particles are wrapped in the concrete, further increasing the contact area between the adjusting block and the concrete poured in the connecting cavity, so that the concrete in the connecting cavity can more firmly lock the position of the adjusting block after solidification.

[0012] Optionally, a slide rail is fixed inside the docking cavity, and the adjusting block is slidably connected to the slide rail.

[0013] By adopting the above technical solution, the adjusting block can slide on the slide rail. When it is necessary to adjust the position of the lower grouting sleeve, the adjusting block slides along the slide rail, thereby driving the lower grouting sleeve to slide in the adjusting groove to achieve position adjustment. The slide rail makes the sliding of the adjusting block more stable and smooth, ensuring the accuracy of the lower grouting sleeve position adjustment and improving the efficiency and quality of rapid bridge assembly.

[0014] Optionally, a support cover is fixed below the connecting seat, and the lower grouting sleeve is located inside the support cover.

[0015] By adopting the above technical solution, the support cover fixed below the connecting seat wraps around the lower grouting sleeve, providing support and protection for the lower grouting sleeve, while also providing displacement space for the lower grouting sleeve during bridge assembly.

[0016] Optionally, a sealing gasket is provided on the side of the adjusting block near the adjusting groove, and the sealing gasket is interference-fitted with the top of the adjusting groove.

[0017] By adopting the above technical solution, the sealing gasket is interference-fitted with the top of the regulating groove, so that the regulating block and the top of the regulating groove are tightly fitted. When grouting is performed, the sealing gasket can prevent the grout from leaking from the gap between the regulating block and the top of the regulating groove, ensuring the smooth progress of the grouting process.

[0018] Optionally, a reinforcing support block is fixed to the top of the lower grouting sleeve, and the top of the reinforcing support block abuts against the bottom of the connecting seat.

[0019] By adopting the above technical solution, the support block plays a stronger supporting role for the lower grouting sleeve and the connecting seat, and the connection between the lower grouting sleeve and the connecting seat is strengthened, making the connection between the two more stable.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. When the grouting sleeve is misaligned with the pre-embedded reinforcing bars at the top of the pier, the lower grouting sleeve can slide within the adjustment groove because the adjusting block is slidably connected to the connecting seat. The lower grouting sleeve is moved within the adjustment groove by the sliding adjusting block, thereby adjusting the position of the lower grouting sleeve to align with the pre-embedded reinforcing bars at the top of the pier. The mating position of the lower grouting sleeve is adjustable to accommodate possible misalignment deviations of the reinforcing bars during installation, ensuring the connection between the grouting sleeve connector and the pier and bridge, and improving the efficiency and accuracy of rapid bridge assembly. 2. The connecting plate increases the contact area between the adjusting block and the concrete poured in the connecting cavity. After the concrete poured in the connecting cavity solidifies, it can firmly lock the position of the adjusting block, thereby locking the position of the lower grouting sleeve. 3. The protruding attachment particles fixed on the side wall of the connecting plate will make full contact with the concrete in the connecting cavity. As the concrete solidifies, the attachment particles are wrapped in the concrete, further increasing the contact area between the adjusting block and the concrete poured in the connecting cavity, so that the concrete in the connecting cavity can more firmly lock the position of the adjusting block after solidification. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the high-performance grouting sleeve connector for rapid bridge assembly in this application; Figure 2 This is a partial sectional view showing a high-performance grouting sleeve connector for rapid bridge assembly; Figure 3 It is a partial sectional view showing the relative positional relationship between the adjusting groove and the adjusting block.

[0022] Explanation of reference numerals in the attached drawings: 1. Upper grouting sleeve; 2. Connecting seat; 21. Adjusting groove; 22. Docking cavity; 23. Slide rail; 24. Clearance groove; 3. Adjusting block; 31. Sealing gasket; 32. Connecting plate; 33. Adhering particles; 4. Lower grouting sleeve; 41. Reinforcing support block; 5. Spliced ​​reinforcing bar; 6. Installed reinforcing bar; 7. Grout outlet pipe; 8. Grout inlet pipe; 9. Support cover. Detailed Implementation

[0023] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0024] This application discloses a high-performance grouting sleeve connector for rapid bridge assembly. (Refer to...) Figures 1-3 The high-performance grouting sleeve connector for rapid bridge assembly includes an upper grouting sleeve 1, a connecting seat 2, an adjusting block 3, and a lower grouting sleeve 4. The upper grouting sleeve 1 is pre-embedded inside the bridge for installation and fixation to the outside of the spliced ​​reinforcing bars 5 within the bridge. The connecting seat 2 is fixed to the bottom of the upper grouting sleeve 1. The adjusting block 3 is slidably connected within the connecting seat 2. The lower grouting sleeve 4 is fixed below the adjusting block 3 for installation and fixation to the outside of the reinforcing bars 6 within the bridge pier. An adjusting groove 21 is provided at the bottom of the connecting seat 2, allowing the lower grouting sleeve 4 to slide within it. The shape of the adjusting groove 21 matches the shape of the lower grouting sleeve 4. The adjusting block 3 abuts against the top of the adjusting groove 21 and seals the top of the adjusting groove 21 to prevent grout leakage from the adjusting groove 21. The connecting seat 2 has a docking cavity 22 inside, which is connected to both the upper grouting sleeve 1 and the lower grouting sleeve 4. A grout outlet pipe 7 is fixed on one side of the top of the upper grouting sleeve 1. The grout outlet pipe 7 is used to discharge air and excess grout during the grouting process to ensure the compactness of the grout. A grout inlet pipe 8 is fixed on one side of the bottom of the lower grouting sleeve 4. The grout inlet pipe 8 is used to inject grout into the lower grouting sleeve 4, the docking cavity 22 and the upper grouting sleeve 1.

[0025] The lower grouting sleeve 4 is used to connect with the reinforcing steel 6 installed inside the pier. The connecting cavity 22 inside the connecting seat 2 is connected to both the upper grouting sleeve 1 and the lower grouting sleeve 4. Grout is injected from the grout inlet pipe 8 on one side of the bottom of the lower grouting sleeve 4. The grout flows into the upper grouting sleeve 1 through the connecting cavity 22. When the grout is full, it flows out from the grout outlet pipe 7 on one side of the top of the upper grouting sleeve 1, thus completing the grouting operation. When the grouting sleeve is misaligned with the reinforcing steel 6 pre-embedded in the top of the pier, the lower grouting sleeve 4 can slide in the adjusting groove 21 because the adjusting block 3 is slidably connected in the connecting seat 2. The lower grouting sleeve 4 is moved in the adjusting groove 21 by sliding the adjusting block 3, thereby adjusting the position of the lower grouting sleeve 4 to align with the reinforcing steel 6 pre-embedded in the top of the pier, so as to accommodate possible misalignment deviations of the reinforcing steel during the installation process.

[0026] Specifically, refer to Figure 2 and Figure 3 The upper grouting sleeve 1 is a cylindrical component used to accommodate the spliced ​​reinforcing bars 5 inside the bridge and to perform grouting operations. It is made of high-strength steel and must be able to withstand pressure without deformation during the grouting process. The lower grouting sleeve 4 is the same as the upper grouting sleeve 1 and is used to accommodate the installed reinforcing bars 6 inside the bridge pier.

[0027] A support cover 9 is fixed below the connecting seat 2. The support cover 9 is made of steel plate. The lower grouting sleeve 4 is located inside the support cover 9. The support cover 9 provides additional support and protection for the lower grouting sleeve 4, and also provides space for the sliding of the lower grouting sleeve 4. Its shape can be designed according to the shape of the lower grouting sleeve 4, as long as it can completely cover the lower grouting sleeve 4. A reinforcing support block 41 is fixed to the top of the lower grouting sleeve 4. The top of the reinforcing support block 41 abuts against the bottom of the connecting seat 2 to strengthen the connection between the lower grouting sleeve 4 and the connecting seat 2.

[0028] Reference Figure 2 and Figure 3 A slide rail 23 is fixed inside the docking cavity 22. The adjusting block 3 is slidably connected to the slide rail 23. The slide rail 23 can be a T-shaped slide rail 23 or a dovetail-shaped slide rail 23, as long as it can ensure the smooth sliding of the adjusting block 3. A sealing gasket 31 is laid on the side of the adjusting block 3 near the adjusting groove 21. The sealing gasket 31 is made of rubber with good elasticity and sealing performance and is interference fit with the top of the adjusting groove 21 to prevent grout leakage. Multiple connecting plates 32 extending into the docking cavity 22 are fixed to the top of the adjusting block 3. Several protruding attachment particles 33 are fixed to the side wall of the connecting plate 32. The attachment particles 33 are used to increase the contact area between the adjusting block 3 and the concrete poured in the docking cavity 22, so that the position of the adjusting block 3 is firmly locked after the concrete poured in the connecting cavity solidifies. An avoidance groove 24 adapted to the connecting plate 32 is also opened in the connecting seat 2 along the moving direction of the adjusting block 3 to accommodate the connecting plate 32 and ensure the smooth sliding of the adjusting block 3.

[0029] The implementation principle of a high-performance grouting sleeve connector for rapid bridge assembly in this application embodiment is as follows: the upper grouting sleeve 1 is pre-embedded in the bridge and connected to the lower grouting sleeve 4 through the connecting seat 2. The adjusting block 3 slides along the slide rail 23 within the connecting seat 2, driving the lower grouting sleeve 4 to move within the adjusting groove 21 to accommodate positional deviations during bridge assembly. The support cover 9 provides protection and support for the lower grouting sleeve 4. During grouting, the grout is injected from the inlet pipe 8, passes through the lower grouting sleeve 4 and the docking cavity 22, and is finally discharged from the outlet pipe 7, achieving the connection between the bridge and the pier. At the same time, the connecting plate 32 and the attached particles 33 increase the contact area between the adjusting block 3 and the concrete poured in the docking cavity 22, so that the position of the adjusting block 3 can be firmly locked after the concrete solidifies. The reinforced support block 41 improves the connection strength between the lower grouting sleeve 4 and the connecting seat 2. This application solves the problem of difficulty in adapting to positional deviations during bridge assembly in the prior art through the sliding structure of the adjusting block 3 and the lower grouting sleeve 4. If a positional deviation occurs during bridge assembly, the lower grouting sleeve 4 can slide within the adjustment groove 21. After adjusting to the appropriate position, grout is injected through the grout inlet pipe 8. The grout fills the entire connection area and solidifies to achieve a firm connection between the bridge and the pier.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-performance grouting sleeve connector for rapid bridge assembly, characterized in that, An upper grouting sleeve (1) is pre-embedded in the bridge for inserting spliced ​​steel bars (5) in the bridge, a connecting seat (2) is fixed to the bottom of the upper grouting sleeve (1), an adjusting block (3) is slidably connected in the connecting seat (2), and a lower grouting sleeve (4) is fixed below the adjusting block (3) for inserting steel bars (6) installed in the pier. The bottom of the connecting seat (2) is provided with an adjusting groove (21), and the lower grouting sleeve (4) can slide in the adjusting groove (21). The adjusting block (3) abuts against the top of the adjusting groove (21) and seals the top of the adjusting groove (21). The connecting seat (2) has a docking cavity (22) inside. The docking cavity (22) is connected to both the upper grouting sleeve (1) and the lower grouting sleeve (4). A grout outlet pipe (7) is fixed on one side of the top of the upper grouting sleeve (1), and a grout inlet pipe (8) is fixed on one side of the bottom of the lower grouting sleeve (4).

2. The high-performance grouting sleeve connector for rapid bridge assembly according to claim 1, characterized in that, The top of the adjusting block (3) is fixed with a plurality of connecting plates (32) extending into the docking cavity (22), and the connecting seat (2) is provided with a relief groove (24) adapted to the connecting plate (32) along the moving direction of the adjusting block (3).

3. The high-performance grouting sleeve connector for rapid bridge assembly according to claim 2, characterized in that, The sidewall of the connecting plate (32) is fixed with protruding attachment particles (33).

4. The high-performance grouting sleeve connector for rapid bridge assembly according to claim 1, characterized in that, A slide rail (23) is fixed inside the docking cavity (22), and the adjusting block (3) is slidably connected to the slide rail (23).

5. The high-performance grouting sleeve connector for rapid bridge assembly according to claim 1, characterized in that, A support cover (9) is fixed below the connecting seat (2), and the lower grouting sleeve (4) is located inside the support cover (9).

6. The high-performance grouting sleeve connector for rapid bridge assembly according to claim 1, characterized in that, A sealing gasket (31) is laid on the side of the adjusting block (3) near the adjusting groove (21), and the sealing gasket (31) is interference-fitted with the top of the adjusting groove (21).

7. The high-performance grouting sleeve connector for rapid bridge assembly according to claim 1, characterized in that, The top of the lower grouting sleeve (4) is fixed with a reinforcing support block (41), and the top of the reinforcing support block (41) abuts against the bottom of the connecting seat (2).

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