An assembled prefabricated component for bridge connection

Abstract

The utility model relates to bridge engineering technical field and disclose a kind of prefabricated component for bridge connection, including prefabricated pier, still including the installation base compatible with prefabricated pier, the first extension platform greater than the lower end of prefabricated pier is equipped in the lower end of prefabricated pier, installation base is internally provided with the placement platform passing through its upper portion and compatible with the first extension platform, several vertical reserved steel bars are equipped in prefabricated pier, and reserved steel bar lower end extends to outside, grouting cavity compatible with reserved steel bar is formed in the bottom of placement platform, and the leveling unit for leveling prefabricated pier is equipped in placement platform. In the utility model, by the first extension platform of the lower end of prefabricated pier and the lower end of prefabricated pier is placed in placement platform position, grouting cavity and placement platform inside are grouted or the pouring of concrete, and it is convenient to install prefabricated pier for bridge connection.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering technology, specifically to a prefabricated assembly component for bridge connections. Background Technology

[0002] Bridges, as a crucial component of transportation infrastructure, play a vital role in promoting economic exchange and personnel movement between regions. Bridge piers, as key supporting structures, bear the important task of transferring the load of the bridge superstructure to the foundation. Their stability and reliability directly affect the overall safety and service life of the bridge. Traditionally, bridge piers are constructed using on-site concrete pouring. This method has many drawbacks, such as long construction cycles and significant susceptibility to weather and seasonal factors. During rainy seasons or winter, concrete pouring and curing conditions are difficult to guarantee, easily leading to construction delays. Furthermore, on-site construction requires substantial manpower and material resources, including formwork erection, rebar tying, concrete pouring, and subsequent curing. This not only involves high labor intensity but also makes construction quality highly dependent on worker skill levels and on-site management, making quality control difficult. In addition, the noise and dust generated during on-site pouring have a significant impact on the surrounding environment. Therefore, prefabricated bridge piers have emerged as a technological advancement.

[0003] A search revealed a patent, CN213571512U, which discloses a prefabricated bridge pier connection structure. This structure includes a pier and a support base located at the end of the pier. The pier comprises a pier body and an annular protrusion fixed to the end of the pier body and projecting radially outward. The annular protrusion is fixedly connected to the support base by several anchor bolts. A corrugated pipe is pre-embedded in the support base, and reinforcing bars are pre-embedded in the pier body. One end of each reinforcing bar is fixed inside the corrugated pipe. The advantages include a short construction period, minimal precision requirements for prefabricated components, good seismic performance of the anchor bolts, and reliable connection between the prefabricated pier and the support base (which may be a pier cap or cap beam) thanks to the grouting corrugated pipe connection.

[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:

[0005] The aforementioned comparative documents describe the installation of precast piers by pre-embedding multiple anchor bolts on the support base and then fitting the protruding part on the side of the anchor bolt during installation. However, this method requires precise positioning of several anchor bolts and simultaneous alignment of them, making the assembly and installation process cumbersome. Therefore, there is an urgent need in the field to improve precast components for bridge connections to address the shortcomings of the existing technology. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a prefabricated assembly component for bridge connections, which facilitates the installation of prefabricated bridge piers used for bridge connections.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated assembly component for bridge connection, including a prefabricated pier and an installation base adapted to the prefabricated pier. The lower end of the prefabricated pier is provided with a first extension platform larger than the lower end of the prefabricated pier. The installation base has a placement platform that penetrates its upper part and is adapted to the first extension platform. The prefabricated pier has a number of vertically reserved reinforcing bars, the lower ends of which extend to the outside. The bottom of the placement platform has a grouting cavity adapted to the reserved reinforcing bars. The placement platform has multiple sets of leveling units for leveling the prefabricated pier.

[0008] Preferably, each leveling unit includes a pre-embedded box located at the bottom of the placement platform. The pre-embedded box has an inclined groove with an inclined bottom. An adjustment seat is provided in the inclined groove. A first adjusting threaded rod with one end extending to the outside of the mounting base is threadedly connected to one side of the pre-embedded box. A first limiting nut is threadedly connected to the side of the first adjusting threaded rod. One end of the first adjusting threaded rod abuts against one side of the adjustment seat.

[0009] Preferably, two symmetrical limiting frames are fixedly installed on the side of the adjusting seat near the first adjusting threaded rod, and a rotating plate adapted to the limiting frame is fixedly connected to one end of the first adjusting threaded rod.

[0010] Preferably, threaded cylinders are pre-embedded on multiple sides of the upper part of the mounting base. The two ends of the threaded cylinders are threaded and connected to a second adjusting threaded rod. One end of the second adjusting threaded rod extends into the placement platform and its end is rotatably connected to an abutment plate. A second limiting nut is threadedly connected to the side of the second adjusting threaded rod.

[0011] Preferably, precast bridge piers have pre-embedded steel bars on multiple sides at the lower end, and the pre-embedded steel bars are located inside the placement platform.

[0012] Preferably, the mounting base has grouting holes on multiple sides, and the grouting holes are connected to the grouting cavity.

[0013] Preferably, the bottom of the placement platform has several pre-embedded grooves, which are compatible with the pre-embedded box.

[0014] Preferably, the upper part of the placement platform is provided with an inclined guide angle.

[0015] Preferably, the lower end of the mounting base is provided with a second extension platform that is larger than the lower part of the mounting base.

[0016] To address the shortcomings of existing technologies, this utility model provides a prefabricated assembly component for bridge connections, overcoming the deficiencies of the prior art. The beneficial effects of this utility model are as follows:

[0017] 1. In this utility model, by placing the lower end of the precast bridge pier and the first extension platform at the lower end of the precast bridge pier in the placement platform position, grouting or concrete pouring is carried out in the grouting cavity and the placement platform, which facilitates the installation of the precast bridge pier used for bridge connection.

[0018] 2. In this utility model, the position of the adjusting seat can be adjusted by the first adjusting threaded rod. The adjusting seat can be adjusted horizontally and vertically, so as to quickly adjust the precast bridge pier and facilitate the assembly of the precast bridge pier.

[0019] 3. In this utility model, the position of the abutment plate can be adjusted by rotating the second adjusting threaded rod, which can not only assist in adjusting the verticality of the precast bridge pier, but also assist in fixing the precast bridge pier after adjustment.

[0020] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic cross-sectional view of the present invention.

[0024] Figure 3 This is a schematic diagram of the embedded box and adjusting seat in this utility model;

[0025] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;

[0026] Figure 5 for Figure 2 Enlarged structural diagram at point B;

[0027] Figure 6 for Figure 3 Enlarged structural diagram at point C.

[0028] In the diagram: 1. Precast pier; 2. First extension platform; 3. Mounting base; 4. Placement platform; 5. Reserved reinforcing bar; 6. Grouting cavity; 7. Embedded box; 8. Inclined groove; 9. Adjustment seat; 10. First adjusting threaded rod; 11. First limiting nut; 12. Limiting frame; 13. Rotating plate; 14. Second adjusting threaded rod; 15. Abutment plate; 16. Second limiting nut; 17. Embedded reinforcing bar; 18. Grouting hole; 19. Embedded groove; 20. Guide angle; 21. Second extension platform; 22. Threaded cylinder. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-6 A prefabricated component for bridge connection includes a prefabricated pier 1 and an installation base 3 adapted to the prefabricated pier 1. The lower end of the prefabricated pier 1 has a first extension platform 2 larger than the lower end of the prefabricated pier 1. The installation base 3 has a placement platform 4 extending through its upper part and adapted to the first extension platform 2. The prefabricated pier 1 has several vertically reserved reinforcing bars 5, the lower ends of which extend to the outside. The bottom of the placement platform 4 has a grouting cavity 6 adapted to the reserved reinforcing bars 5. The placement platform 4 has multiple sets of leveling units for leveling the prefabricated pier 1. Each leveling unit includes an embedded box 7 located at the bottom of the placement platform 4, and the embedded box 7 has an inclined groove 8 with an inclined bottom. An adjusting seat 9 is provided in the inclined groove 8. A first adjusting threaded rod 10 with one end extending to the outside of the mounting base 3 is threadedly connected to one side of the pre-embedded box 7. A first limiting nut 11 is threadedly connected to the side of the first adjusting threaded rod 10. One end of the first adjusting threaded rod 10 abuts against one side of the adjusting seat 9. Two symmetrical limiting frames 12 are fixedly installed on the side of the adjusting seat 9 near the first adjusting threaded rod 10. A rotating plate 13 adapted to the limiting frame 12 is fixedly connected to one end of the first adjusting threaded rod 10. Grouting holes 18 are opened on multiple sides of the mounting base 3. The grouting holes 18 communicate with the grouting cavity 6. Several pre-embedded grooves 19 are opened at the bottom of the placement platform 4. The pre-embedded grooves 19 are adapted to the pre-embedded box 7.

[0031] Specifically, firstly, the installation base 3 is cast on-site according to the bridge construction drawings, and precast piers 1 are produced in the factory according to the dimensions of the installation base 3. The first extension platform 2 and the precast pier 1 are precast as a whole. When the bridge needs to be connected, the positions of at least four adjusting seats 9 are first adjusted. By rotating the first adjusting threaded rod 10, the rotating plate 13 rotates within the limiting frame 12, causing the adjusting seats 9 to slide within the inclined groove 8. The bottom of the inclined groove 8 is inclined. When the adjusting seats 9 move horizontally, they move up and down. At the same time, the rotating plate 13 moves within the limiting frame 12. The levelness of the adjusting seats 9 distributed in four directions is measured by a level measuring device. Then, the precast pier 1 is vertically lifted by a lifting device. After lifting, the first extension platform 2 is aligned with the placement platform 4. The first extension platform 2 is placed on several adjusting seats 9, and the verticality is measured again. The measuring device measures the verticality of the precast pier 1. If the weight of the precast pier 1 is small, the position of the adjusting seat 9 can be finely adjusted by rotating the first adjusting threaded rod 10 with a professional tool. If the weight of the precast pier 1 is large, the precast pier 1 can be lifted to adjust the adjusting seat 9. When the verticality of the precast pier 1 is within the specified threshold, the first limit nut 11 is locked to limit and fix the position of the first adjusting threaded rod 10. The reserved steel bar 5 is located in the grouting cavity 6, and grout is injected into the grouting cavity 6 through the grouting hole 18 by the grouting equipment. At the same time, grouting or concrete pouring can be carried out in the placement platform 4. The lower end of the precast pier 1 is directly inserted into the placement platform 4, and grouting or concrete pouring is carried out to facilitate the installation of the precast pier 1 used for bridge connection. At the same time, the adjustable adjusting seat 9 facilitates quick adjustment of the precast pier 1 and facilitates the assembly of the precast pier 1.

[0032] As a technical optimization of this utility model, threaded cylinders 22 are pre-embedded on multiple sides of the upper part of the mounting base 3. The two ends of the threaded cylinders 22 are threaded and connected to a second adjusting threaded rod 14. One end of the second adjusting threaded rod 14 extends into the placement platform 4 and its end is rotatably connected to an abutment plate 15. A second limiting nut 16 is threadedly connected to the side of the second adjusting threaded rod 14. Pre-embedded steel bars 17 are provided on multiple sides of the lower end of the precast pier 1. The pre-embedded steel bars 17 are located in the placement platform 4. The upper part of the placement platform 4 is provided with an inclined guide angle 20. The lower end of the mounting base 3 is provided with a second extension platform 21 that is larger than the lower part of the mounting base 3.

[0033] Specifically, when adjusting the precast pier 1, the second adjusting threaded rod 14 can be rotated to move the abutment plate 15. The threaded cylinder 22 is pre-embedded during the pouring of the installation base 3. The abutment plate 15 can play an auxiliary adjustment role and can also play an auxiliary fixing role after the precast pier 1 is adjusted. After the position of the precast pier 1 is adjusted, the second limit nut 16 is locked to limit and fix the position of the second adjusting threaded rod 14. The pre-embedded steel bar 17 is pre-embedded during the production of the precast pier 1. After grouting or pouring concrete in the placement platform 4, the stability of the precast pier 1 after assembly is improved by the cooperation of the pre-embedded steel bar 17 and the first extension platform 2 which is larger than the lower end of the precast pier 1. The guide angle 20 mainly plays a guiding role when the first extension platform 2 is inserted into the placement platform 4. The second extension platform 21 increases the lower area of ​​the installation base 3 and improves the stability of the installation base 3.

[0034] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above description is merely 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 prefabricated assembly component for bridge connection, comprising a prefabricated bridge pier (1), characterized in that, It also includes an installation base (3) adapted to the precast pier (1), the lower end of the precast pier (1) is provided with a first extension platform (2) larger than the lower end of the precast pier (1), the installation base (3) is provided with a placement platform (4) that runs through its upper part and is adapted to the first extension platform (2), the precast pier (1) is provided with several vertically reserved steel bars (5), the lower end of the reserved steel bars (5) extends to the outside, the bottom of the placement platform (4) is provided with a grouting cavity (6) adapted to the reserved steel bars (5), and the placement platform (4) is provided with multiple sets of leveling units for leveling the precast pier (1).

2. The prefabricated assembly component for bridge connection according to claim 1, characterized in that, Each leveling unit includes a pre-embedded box (7) located at the bottom of the placement platform (4). The pre-embedded box (7) has an inclined groove (8) with an inclined bottom. An adjustment seat (9) is located in the inclined groove (8). A first adjusting threaded rod (10) with one end extending to the outside of the mounting base (3) is threaded to one side of the pre-embedded box (7). A first limiting nut (11) is threaded to the side of the first adjusting threaded rod (10). One end of the first adjusting threaded rod (10) abuts against one side of the adjustment seat (9).

3. A prefabricated assembly component for bridge connection according to claim 2, characterized in that, Two symmetrical limit frames (12) are fixedly installed on the side of the adjusting seat (9) near the first adjusting threaded rod (10). A rotating plate (13) adapted to the limit frame (12) is fixedly connected to one end of the first adjusting threaded rod (10).

4. A prefabricated assembly component for bridge connection according to claim 1, characterized in that, The mounting base (3) has multiple embedded threaded cylinders (22) on its upper sides. The threaded cylinders (22) are threaded through both ends and connected to a second adjusting threaded rod (14). One end of the second adjusting threaded rod (14) extends into the placement platform (4) and its end is rotatably connected to an abutment plate (15). The side of the second adjusting threaded rod (14) is threaded with a second limiting nut (16).

5. A prefabricated assembly component for bridge connection according to claim 1, characterized in that, The precast pier (1) has embedded steel bars (17) on multiple sides at the lower end, and the embedded steel bars (17) are located in the placement platform (4).

6. A prefabricated assembly component for bridge connection according to claim 1, characterized in that, The mounting base (3) has grouting holes (18) on multiple sides, and the grouting holes (18) are connected to the grouting cavity (6).

7. A prefabricated assembly component for bridge connection according to claim 2, characterized in that, Several pre-embedded grooves (19) are provided at the bottom of the placement platform (4), and the pre-embedded grooves (19) are adapted to the pre-embedded box (7).

8. A prefabricated assembly component for bridge connection according to claim 1, characterized in that, The upper part of the placement platform (4) is provided with an inclined guide angle (20).

9. A prefabricated assembly component for bridge connection according to claim 1, characterized in that, The lower end of the mounting base (3) is provided with a second extension platform (21) that is larger than the lower part of the mounting base (3).

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