Pile foundation underwater and bridge pier column junction cap reinforcement structure

Abstract

The application relates to an underwater structure and belongs to the technical field of foundations, and discloses a pile cap reinforcing structure at a connecting position of an underwater pile foundation and a bridge pier column, which comprises a pile cap main body, intermediate platforms arranged on the two sides of the pile cap main body, second pile foundations arranged on the lower sides of the intermediate platforms, buffer assemblies arranged in the intermediate platforms, buffer seats arranged on the outer sides of the intermediate platforms, and third pile foundations arranged on the lower sides of the buffer seats. The intermediate platforms, the buffer assemblies and the buffer seats are additionally arranged on the two sides of the pile cap main body, a multilayer buffer anti-collision system is constructed, the buffer assemblies arranged in the intermediate platforms and the buffer seats work cooperatively, when a ship or a floating object collides, damping buffer pieces in the buffer assemblies absorb the collision energy through elastic deformation, and the impact force is reduced and directly transmitted to the pile cap main body.

Description

Technical Field

[0001] This invention relates to underwater structures, specifically to a reinforced structure for the connection between an underwater pile foundation and a bridge pier. Background Technology

[0002] A pile foundation is a structural component that extends deep into the ground to transfer the load of the bridge superstructure to stable soil or rock layers deep underground, thereby ensuring the stability and safety of the bridge. In bridge engineering, pile foundations are key components that bear vertical and horizontal loads and play an important role in resisting external forces such as water erosion and earthquakes. The upper and lower ends of the bridge pile cap connect the pier and the pile component, respectively. Under the action of horizontal / vertical loads, they are in a complex stress state and are important components in the load transfer path of the bridge substructure.

[0003] Currently, the abutment structure at the connection between underwater pile foundations and bridge piers is simple, with pile foundations located beneath the abutment and the main pier structure above it. However, due to factors such as waterway upgrades, increased vessel tonnage, increased vessel numbers, and the establishment of new anchorages at bridge sites, the structural strength and collision resistance of the abutment need improvement. Summary of the Invention

[0004] The present invention aims to improve the strength of the abutment structure at the connection between underwater pile foundation and bridge pier, so as to improve the bridge's collision resistance, safety and service life.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: A reinforced structure for the connection between an underwater pile foundation and a bridge pier includes a pile foundation body, a plurality of first pile foundations are evenly arranged on the lower side of the pile foundation body, a pier body is arranged on the upper side of the pile foundation body, an intermediate platform is fixedly arranged at the left and right ends of the pile foundation body, a second pile foundation is arranged on the lower side of the intermediate platform, and a first cavity is arranged in the middle of the outer side of the intermediate platform, a buffer component can be placed into the first cavity from above and covered by a protective cover; A buffer seat is provided on the outer side of the intermediate platform, and a third pile foundation is provided on the lower side of the buffer seat. A first V-shaped surface is provided on the outer side of the intermediate platform, and a second V-shaped surface corresponding to the first V-shaped surface is provided on the inner side of the buffer seat. The outer end of the buffer assembly abuts against the inner side of the buffer seat to achieve buffering. The outer side of the buffer seat is provided with a third V-shaped surface, which is sharper than the first V-shaped surface. The third V-shaped surface is provided with guide grooves evenly spaced at the top and bottom. The front and rear outer sides of the intermediate platform are provided with slots. The front and rear sides of the buffer seat extend toward the intermediate platform to form a protective shield. The inner side of the protective shield is provided with a plug corresponding to the slot. The protective shields on the left and right sides are connected by a third damping buffer, so that the buffer seats on the left and right sides, together with the third damping buffer, clamp the intermediate platform and the main body of the support platform together.

[0006] As a preferred embodiment of the above solution, the buffer assembly includes an assembly vertical plate fixedly installed in the first cavity. Fixing plates are symmetrically arranged on the outer side of the assembly vertical plate. Each fixing plate has a first damping buffer extending laterally on its outer side, and each fixing plate has a second damping buffer extending laterally on its inner side. The telescopic ends of the second damping buffers are connected to a second transmission block. A rubber buffer block is located in the middle of the outer side of the assembly vertical plate. A connecting rod is rotatably connected to the outer side of the second transmission block. The other sides of the two connecting rods are rotatably connected to the front and rear ends of the same third transmission block. A pressure block corresponding to the rubber buffer block is provided on the third transmission block. The third transmission block and the first damping buffers both abut against the inner side of the buffer seat.

[0007] More preferably, a second cavity is provided in the center of the inner side of the buffer seat, a first transmission block is provided in the second cavity, a rectangular hole is provided in the middle of the first transmission block, and the third transmission block is inserted into the rectangular hole.

[0008] More preferably, the telescopic end of the first damping buffer is provided with a connecting piece, and the connecting piece abuts against the inner wall of the second cavity.

[0009] A further preferred embodiment is that the pointed portion of the third V-shaped surface is provided with a vertical buffer strip.

[0010] More preferably, guide grooves are provided on the inner side of the first cavity and the lower side of the protective cover, and the upper and lower sides of the second transmission block are slidably connected to the guide grooves.

[0011] More preferably, the insert is T-shaped, and the shape of the slot matches the shape of the insert.

[0012] A more preferred embodiment is that a base is provided on one side of the protective shield, and the third damping buffer is mounted on the base.

[0013] More preferably, the outer side of the protective cover is provided with a fourth V-shaped surface, which matches the first V-shaped surface and the second V-shaped surface.

[0014] More preferably, the second V-shaped surface is provided with horizontal buffer strips at even intervals on the top and bottom, and the horizontal buffer strips and the guide grooves are alternately arranged.

[0015] The beneficial effects of the present invention are as follows: By adding an intermediate platform, a buffer assembly and a buffer seat on both sides of the main body of the pier, a multi-layered buffer anti-collision system is constructed. The buffer assembly and the buffer seat set in the intermediate platform work together. When a ship or drifting object collides, the damping buffer in the buffer assembly absorbs the impact energy through elastic deformation, reducing the impact force directly transmitted to the main body of the pier. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the first three-dimensional structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the buffer seat of the present invention.

[0019] Figure 4 This is a schematic diagram of the first three-dimensional structure of the present invention without a buffer seat.

[0020] Figure 5 This is a schematic diagram of the second three-dimensional structure of the present invention without a buffer seat.

[0021] Figure 6 For this Figure 5 A partially enlarged structural diagram.

[0022] In the diagram: 1. Foundation body, 2. First pile foundation, 3. Pier main body, 4. Intermediate platform, 5. Second pile foundation, 6. Protective cover, 7. Connecting lug, 8. Bolt, 9. First V-shaped surface, 10. Buffer seat, 11. Third pile foundation, 12. Second V-shaped surface, 13. First transmission block, 14. Third V-shaped surface, 15. Guide channel, 16. Slot, 17. Protective shield, 18. Insert block, 19. Assembly vertical plate, 20. First damping buffer component, 21. Fixing plate, 22. Second damping buffer component, 23. Second transmission block, 24. Rubber buffer block, 25. Connecting rod, 26. Third transmission block, 27. Pressure block, 28. Vertical buffer strip, 29. Guide groove, 30. Connecting piece, 31. Base, 32. Third damping buffer component, 33. Fourth V-shaped surface, 34. Horizontal buffer strip. Detailed Implementation

[0023] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figures 1-6 As shown, a reinforced structure for the connection between an underwater pile foundation and a bridge pier includes a pile foundation body 1, a plurality of first pile foundations 2 are evenly arranged on the lower side of the pile foundation body 1, and a pier body 3 is arranged on the upper side of the pile foundation body 1. The above description is consistent with the existing structure and will not be repeated here.

[0025] The difference lies in the fact that intermediate platforms 4 are fixedly installed at both ends of the main body 1 of the foundation to increase the overall width of the foundation. A second pile foundation 5 is installed on the lower side of the intermediate platform 4, and a first cavity is provided in the middle of the outer side of the intermediate platform 4. The buffer component can be inserted into the first cavity from above and covered by the protective cover 6.

[0026] A buffer seat 10 is provided on the outer side of the intermediate platform 4, and a third pile foundation 11 is provided on the lower side of the buffer seat 10. A first V-shaped surface 9 is provided on the outer side of the intermediate platform 4, and a second V-shaped surface 12 corresponding to the first V-shaped surface 9 is provided on the inner side of the buffer seat 10. The outer end of the buffer assembly abuts against the inner side of the buffer seat 10 to achieve buffering.

[0027] The outer side of the buffer seat 10 is provided with a third V-shaped surface 14, which is more pointed than the first V-shaped surface 9. The third V-shaped surface 14 is provided with guide grooves 15 evenly spaced vertically. To increase the buffering effect, the pointed part of the third V-shaped surface 14 is provided with a vertical buffer strip 28.

[0028] Slots 16 are provided on both the front and rear outer sides of the intermediate platform 4. The front and rear sides of the buffer seat 10 extend toward the intermediate platform 4 to form a protective shield 17. The inner side of the protective shield 17 is provided with a plug 18 corresponding to the slot 16. The plug 18 is preferably T-shaped, and the shape of the slot 16 matches the shape of the plug 18.

[0029] The protective shields 17 on the left and right sides are connected by the third damping buffer 32, so that the buffer seats 10 on the left and right sides, together with the third damping buffer 32, bind the middle platform 4 and the main body of the support platform 1 together, thus forming an overall structure with multi-level buffering effect.

[0030] The specific structure of the buffer assembly is as follows: it includes an assembly vertical plate 19 fixedly installed in the first cavity. Fixing plates 21 are symmetrically arranged on the outer side of the assembly vertical plate 19. Each fixing plate 21 has a first damping buffer 20 extending laterally on its outer side, and each fixing plate 21 has a second damping buffer 22 extending laterally on its inner side. The telescopic ends of the second damping buffer 22 are connected to a second transmission block 23. A rubber buffer block 24 is arranged in the middle of the outer side of the assembly vertical plate 19. A connecting rod 25 is rotatably connected to the outer side of the second transmission block 23. The other sides of the two connecting rods 25 are rotatably connected to the front and rear ends of the same third transmission block 26. A pressure block 27 corresponding to the rubber buffer block 24 is provided on the third transmission block 26. The third transmission block 26 and the first damping buffer 20 both abut against the inner side of the buffer seat 10.

[0031] Ideally, a second cavity is centrally located on the inner side of the buffer seat 10, and a first transmission block 13 is disposed within the second cavity. A rectangular hole is provided in the center of the first transmission block 13, and a third transmission block 26 is inserted into the rectangular hole to prevent the position of the third transmission block 26 from shifting. A connecting piece 30 is provided at the telescopic end of the first damping buffer 20, and the connecting piece 30 abuts against the inner wall of the second cavity. Guide grooves 29 are provided on the inner side of the first cavity and the lower side of the protective cover 6. The upper and lower sides of the second transmission block 23 are slidably connected to the guide grooves 29, which can increase the smoothness of the second transmission block 23 during movement. A base 31 is provided on one side of the protective shield 17, and the third damping buffer 32 is mounted on the base 31. A fourth V-shaped surface 33 is provided on the outer side of the protective cover 6, and the fourth V-shaped surface 33 matches the first V-shaped surface 9 and the second V-shaped surface 12.

[0032] In addition, the second V-shaped surface 12 is provided with horizontal buffer strips 34 at even intervals on the top and bottom, and the horizontal buffer strips 34 and the guide grooves 15 are alternately arranged.

[0033] It should be noted that during construction, the main body of the pier cap 1, the first pile foundation 2, and the main body of the pier column 3 are installed first. Reinforcing bars are installed on both sides of the main body of the pier cap 1, and concrete is poured at the reinforcing bar locations to form an intermediate platform 4, thereby enlarging the original size of the main body of the pier cap 1 to enhance its load-bearing capacity.

[0034] During assembly, the buffer seat 10 is installed on the outside of the intermediate platform 4 through the insertion block 18 on the inner side of the protective shield 17 and the slot 16, thereby protecting the main body 1 of the platform from the direction of water flow; the first V-shaped surface 9 on the intermediate platform 4, the second V-shaped surface 12 and the third V-shaped surface 14 on the buffer seat 10, and the fourth V-shaped surface 33 on the protective cover 6 cooperate with each other, and the buffer seat 10 is tapered as a whole, which can reduce the impact it receives as a whole;

[0035] An intermediate platform 4 and a buffer seat 10 are added to both sides of the main body 1. A second pile foundation 5 and a third pile foundation 11 are respectively set on the lower side of the two, which can provide stable support for them. At the same time, a vertical buffer strip 28 is set on one side of the buffer seat 10, a transverse buffer strip 34 is evenly set on the surface of the second V-shaped surface 12, and a guide groove 15 is evenly set on the surface of the second V-shaped surface 12. The three of them work together to further reduce the impact on the buffer seat 3 as a whole.

[0036] The middle section of the intermediate platform 4 is provided with a first cavity, and a buffer assembly is provided inside the first cavity. The first damping buffer 20, the second damping buffer 22, the second transmission block 23, the rubber buffer block 24, the connecting rod 25, the third transmission block 26, the pressure block 27, the connecting piece 30 and the first transmission block 13 inside the second cavity cooperate to absorb impact energy through elastic deformation, reduce the impact force directly transmitted to the main body of the platform 1, effectively improve the impact resistance of the platform in the complex underwater environment, thereby achieving the purpose of platform reinforcement. It is especially suitable for scenarios of waterway upgrades and increased ship tonnage, and significantly enhances the overall safety of the bridge.

[0037] A protective cover 6 is provided on the upper side of the first cavity. The protective cover 6, through the connection lug 7 and bolt 8, can protect the buffer component inside the first cavity, increase its service life, and facilitate the maintenance of the buffer component by the operator.

[0038] The insert 18 is T-shaped, and the shape of the slot 16 matches the shape of the insert 18. The buffer seat 10 can move slightly through the cooperation of the insert 18 and the slot 16 to facilitate the buffering function. A third damping buffer 32 is provided on one side of the protective shield 17 to further increase the buffering effect.

[0039] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforced structure for the connection between an underwater pile foundation and a bridge pier, comprising a pile foundation body (1), wherein a plurality of first pile foundations (2) are uniformly arranged on the lower side of the pile foundation body (1), and a pier body (3) is arranged on the upper side of the pile foundation body (1), characterized in that, The main body of the foundation (1) is fixedly provided with intermediate platforms (4) at its left and right ends respectively. A second pile foundation (5) is provided on the lower side of the intermediate platform (4). A first cavity is provided in the middle of the outer side of the intermediate platform (4). The buffer component can be placed into the first cavity from above and covered by a protective cover (6). A buffer seat (10) is provided on the outside of the intermediate platform (4), a third pile foundation (11) is provided on the lower side of the buffer seat (10), a first V-shaped surface (9) is provided on the outside of the intermediate platform (4), a second V-shaped surface (12) corresponding to the first V-shaped surface (9) is provided on the inside of the buffer seat (10), and the outer end of the buffer assembly abuts against the inside of the buffer seat (10) to achieve buffering. The buffer seat (10) has a third V-shaped surface (14) on its outer side, and the third V-shaped surface (14) is sharper than the first V-shaped surface (9). The third V-shaped surface (14) is evenly spaced with guide grooves (15) on its upper and lower sides. The front and rear outer sides of the intermediate platform (4) are provided with slots (16). The front and rear sides of the buffer seat (10) extend toward the intermediate platform (4) to form a protective shield (17). The inner side of the protective shield (17) is provided with a plug (18) corresponding to the slot (16). The protective shields (17) on the left and right sides are connected by a third damping buffer (32), so that the buffer seats (10) on the left and right sides, together with the third damping buffer (32), hold the intermediate platform (4) and the main body of the support platform (1) together.

2. The pile cap reinforcement structure at the connection between underwater pile foundation and bridge pier as described in claim 1, characterized in that, The buffer assembly includes an assembly vertical plate (19) fixedly installed in the first cavity. Fixing plates (21) are symmetrically arranged on the outer side of the assembly vertical plate (19). Each fixing plate (21) has a first damping buffer (20) extending to the left and right on its outer side. Each fixing plate (21) has a second damping buffer (22) extending to the front and back on its inner side. The telescopic end of the second damping buffer (22) is connected to a second transmission block (23). A rubber buffer block (24) is arranged in the middle of the outer side of the assembly vertical plate (19). A connecting rod (25) is rotatably connected to the outer side of the second transmission block (23). The other side of the two connecting rods (25) is rotatably connected to the front and rear ends of the same third transmission block (26). A pressure block (27) corresponding to the rubber buffer block (24) is arranged on the third transmission block (26). The third transmission block (26) and the first damping buffer (20) both abut against the inner side of the buffer seat (10).

3. The pile cap reinforcement structure at the connection between underwater pile foundation and bridge pier as described in claim 2, characterized in that, The buffer seat (10) has a second cavity in the center of its inner side. The second cavity contains a first transmission block (13), which has a rectangular hole in the middle. The third transmission block (26) is inserted into the rectangular hole.

4. The pile cap reinforcement structure at the connection between underwater pile foundation and bridge pier as described in claim 3, characterized in that, The first damping buffer (20) has a connecting piece (30) at its telescopic end, and the connecting piece (30) abuts against the inner wall of the second cavity.

5. The pile cap reinforcement structure at the connection between underwater pile foundation and bridge pier as described in claim 1, characterized in that, The pointed part of the third V-shaped surface (14) is provided with a vertical buffer strip (28).

6. The pile cap reinforcement structure at the connection between underwater pile foundation and bridge pier as described in claim 2, characterized in that, The first cavity and the lower side of the protective cover (6) are provided with guide grooves (29), and the upper and lower sides of the second transmission block (23) are slidably connected to the guide grooves (29).

7. The pile cap reinforcement structure at the connection between underwater pile foundation and bridge pier as described in claim 1, characterized in that, The insert (18) is T-shaped, and the shape of the slot (16) matches the shape of the insert (18).

8. The pile cap reinforcement structure at the connection between underwater pile foundation and bridge pier as described in claim 1, characterized in that, The protective shield (17) has a base (31) on one side, and the third damping buffer (32) is installed on the base (31).

9. The pile cap reinforcement structure at the connection between underwater pile foundation and bridge pier as described in claim 1, characterized in that, The protective cover (6) has a fourth V-shaped surface (33) on its outer side, which matches the first V-shaped surface (9) and the second V-shaped surface (12).

10. The pile cap reinforcement structure at the connection between underwater pile foundation and bridge pier as described in claim 1, characterized in that, The second V-shaped surface (12) is evenly provided with transverse buffer strips (34) at intervals on the top and bottom, and the transverse buffer strips (34) and the guide grooves (15) are alternately arranged.

Images