A pier reinforcement structure for a steel structure bridge

Abstract

The present application discloses a pier reinforcement structure of a steel structure bridge, which relates to the technical field of bridges, and includes a pier and a reinforcement body for reinforcing the pier, wherein a mounting ring surrounding the pier is arranged inside the reinforcement body, a sealing ring is arranged on the inner wall of the mounting ring, a water storage bag with water stored inside and surrounding the sealing ring is arranged inside the mounting ring, the inner peripheral side wall of the water storage bag is abutted against the outer peripheral side wall of the sealing ring, a pressurizing bag is arranged inside the mounting ring, the pressurizing bag stores water inside and is provided with a connecting pipe connected to the water storage bag, an extrusion plate corresponding to the pressurizing bag and located at the bottom of the pressurizing bag is slid up and down inside the mounting ring, a floating ring sliding up and down on the outer peripheral side of the reinforcement body following the water level movement, and a driving assembly is arranged on the mounting ring, and when the floating ring moves upward, the driving assembly drives the extrusion plate to squeeze the pressurizing bag, and when the floating ring moves downward, the driving assembly drives the extrusion plate away from the pressurizing bag. The present application can reduce the possibility of water entering the gap between the reinforcement structure and the pier when it rains.

Description

Technical Field

[0001] The present application relates to the technical field of bridges, and in particular to a pier reinforcement structure of a steel structure bridge. Background Art

[0002] A steel structure bridge is a bridge whose main load-bearing structure is made of steel. It is also called a steel structure bridge or steel bridge. It is mainly composed of five parts, including the span structure, support system, piers, abutments and piers.

[0003] Among them, the pier is the supporting structure of the bridge and can be made of steel structure. At the same time, in order to improve the stability of the pier and protect the pier structure, a concrete reinforcement structure will be poured on the outer side of the root of the pier during construction to reinforce and protect the pier.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there are the following defects: the materials of the bridge pier and the reinforcement structure are different and cannot be completely integrated. As time goes by, gaps may appear at the connection between the reinforcement structure and the bridge pier. Especially for bridges across rivers, when the water level rises due to rain, the water flows over the bridge piers. At this time, the water easily enters the gap and starts to corrode the connection, affecting the supporting strength of the bridge pier. Summary of the invention

[0005] In order to reduce the possibility of water flowing into the gap between the reinforcement structure and the bridge pier when it rains, the present application provides a pier reinforcement structure for a steel structure bridge.

[0006] The present application provides a pier reinforcement structure for a steel structure bridge, which adopts the following technical solution:

[0007] A pier reinforcement structure for a steel structure bridge comprises a pier and a reinforcement body for reinforcing the pier, wherein a mounting ring surrounding the pier is arranged in the reinforcement body, the inner wall of the mounting ring abuts against the outer wall of the pier, the inner wall of the mounting ring is arranged with a sealing ring surrounding the pier and abutting against the outer peripheral side of the pier, a water storage bag storing water inside and surrounding the sealing ring is arranged in the mounting ring, the inner peripheral side wall of the water storage bag abuts against the outer peripheral side wall of the sealing ring, a plurality of pressurizing bags arranged at intervals along the circumferential direction and surrounding the water storage bag are arranged in the mounting ring, the pressurizing bag stores water inside and is provided with a connecting pipe connected with the water storage bag, an extrusion plate corresponding to the pressurizing bag one by one and located at the bottom of the pressurizing bag is slid up and down in the mounting ring, a floating ring sliding up and down on the outer peripheral side of the reinforcement body following the water level movement, and a driving assembly connecting the floating ring and the extrusion plate is arranged in the mounting ring, when the floating ring moves upward, the driving assembly drives the extrusion plate to extrude the pressurizing bag, and when the floating ring moves downward, the driving assembly drives the extrusion plate away from the pressurizing bag.

[0008] By adopting the above technical solution, the water level around the reinforcement body rises when it rains, and the floating ring moves upward at this time. The driving assembly drives the extrusion plate to squeeze the pressurized bag, so that the water in the pressurized bag flows into the water storage bag. At this time, the water storage bag expands and deforms to squeeze the sealing ring, thereby improving the tightness between the sealing ring and the bridge pier. When the rain stops and the water level drops, driving the floating ring to move downward, the driving assembly drives the extrusion plate to move downward. At this time, the water in the water storage bag flows back into the pressurized bag, and the water storage bag returns to its state before expansion, reducing the difficulty of water that enters the connection between the bridge pier and the reinforcement body through other means and evaporates and passes through the sealing ring. The whole process is simple, and the sealing ring is used to improve the sealing degree between the bridge pier and the reinforcement body, which can reduce the possibility of water entering the gap between the reinforced structure and the bridge pier when it rains.

[0009] Optionally, the driving assembly includes a driving column, a driving plate and a connecting column, the connecting column slides up and down and passes through the mounting ring and the reinforcement body, the connecting column corresponds to the extrusion plate one-to-one and the bottom is fixed to the top of the extrusion plate, the driving column corresponds to the connecting column one-to-one and is arranged at the top of the floating ring, the driving plate is fixed to the top of the connecting column, the driving column slides up and down and passes through the driving plate, the driving blocks are symmetrically arranged on the upper and lower peripheral sides of the driving column, and the driving plate is located between the upper and lower driving blocks.

[0010] By adopting the above technical solution, when the floating ring moves upward, the driving block located below drives the driving plate to move upward, so that the connecting column drives the extrusion plate to squeeze the pressurization bag, which is conducive to the water flow in the pressurization bag entering the water storage bag to drive the water storage bag to expand and squeeze the sealing ring, thereby improving the sealing degree of the sealing ring.

[0011] Optionally, the mounting ring is provided with a mounting sleeve which is passed through the reinforcement body and protrudes out of the reinforcement body, and the connecting column slides up and down on the mounting sleeve.

[0012] By adopting the above technical solution, the connecting column slides up and down on the installation sleeve, which facilitates the installation of the installation ring and reduces the possibility of the reinforcement body and the connecting column being solidified into one.

[0013] Optionally, a plurality of installation grooves extending in the horizontal direction are evenly opened on the upper and lower outer sides of the connecting column, the connecting column is provided with support columns corresponding to the installation grooves one by one and sliding in the installation grooves, the connecting column is provided with a pushing spring driving the support column to protrude into the installation groove, and the connecting column is provided with a control component that controls the support column to slide into the installation groove when the driving block located above approaches the driving plate.

[0014] By adopting the above technical solution, the spring pushes the support column to slide out of the installation groove during use, so that the support column can abut against the top of the installation sleeve, which is conducive to keeping the water storage bag in a state of expanding and squeezing the sealing ring.

[0015] Optionally, the control component includes a control column and a control rope, the control column slides up and down on the connecting column and protrudes upward outside the connecting column, the control rope corresponds to the support column one by one and one end is connected to the support column, and the other end passes through a push spring and is connected to the outer peripheral side of the control column, and the driving block located above is provided with a power plate extending to directly above the control column.

[0016] By adopting the above technical solution, when the control column slides downward, the support column is pulled into the installation groove through the control rope, which is beneficial for the connecting column to enter a downward sliding state.

[0017] Optionally, a guide surface is provided on a side of the support column away from the push spring.

[0018] By adopting the above technical solution, when in use, the support column slides on the installation sleeve through the guide surface, which is beneficial to reducing the friction generated when the support column slides on the installation sleeve.

[0019] Optionally, the inner side wall of the mounting sleeve is provided with a sealing ring for abutting against the outer side of the connecting column.

[0020] By adopting the above technical solution, the amount of rainwater passing through the installation sleeve and the connecting column can be reduced.

[0021] Optionally, the extrusion plate is fixedly connected to the pressurized bag.

[0022] By adopting the above technical solution, the extrusion plate can drive the pressurizing bag to recover its deformation when moving downward and absorb the water flow in the water storage bag back to the pressurizing bag.

[0023] Optionally, a drainage surface is provided on the top of the reinforcement body, slanting downwardly away from the pier, and a shielding ring is provided on the outer peripheral side of the pier and close to the reinforcement body.

[0024] By adopting the above technical solution, rainwater flows to the top of the reinforcement body through the shielding ring and moves away from the piers through the drainage surface, which is helpful to reduce the possibility of rainwater entering the connection between the piers and the reinforcement body when it rains.

[0025] In summary, the present application includes at least one of the following beneficial effects:

[0026] 1. When in use, the connection between the reinforcement body and the bridge pier is sealed by the sealing ring, and when it rains, the driving assembly drives the extrusion plate to squeeze the pressurized bag, so that water flows into the water storage bag. At this time, the water storage bag expands and squeezes the sealing ring, thereby improving the sealing ability of the sealing ring and reducing the possibility of water flowing into the gap between the reinforcement structure and the bridge pier when it rains;

[0027] 2. When in use, the support column abuts against the top of the mounting sleeve to keep the water storage bag in an expanded state, so that the state of the water storage bag squeezing the sealing ring is maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is the external structural intention of the embodiment of the present application;

[0029] Figure 2 is a schematic diagram of an internal cross-section of an embodiment of the present application;

[0030] Figure 3 yes Figure 2 A magnified schematic diagram of part A;

[0031] Figure 4 yes Figure 2 An enlarged schematic diagram of part B.

[0032] Figure numerals: 1. Bridge pier; 11. Shielding ring; 2. Reinforcement body; 21. Floating ring; 22. Drainage surface; 3. Mounting ring; 31. Sealing ring; 311. Sealing groove; 32. Water storage bag; 321. Storage groove; 33. Pressurization bag; 331. Pressurization groove; 34. Connecting pipe; 35. Extrusion plate; 4. Drive assembly; 41. Drive column; 411. Drive block; 42. Drive plate; 421. Power plate; 43. Connecting column; 431. Mounting sleeve; 4311. Sealing ring; 432. Mounting groove; 433. Support column; 4331. Guide surface; 434. Push spring; 5. Control assembly; 51. Control column; 52. Control rope. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-4 This application is described in further detail.

[0034] The present application embodiment discloses a pier reinforcement structure for a steel structure bridge. Figure 1 The pier reinforcement structure of the steel structure bridge includes a pier 1 and a reinforcement body 2. The reinforcement body 2 is formed by pouring concrete. The reinforcement body 2 surrounds the outer peripheral side of the root of the pier 1 and forms a truncated cone structure, which protects the root part of the pier 1 and improves the supporting strength of the pier 1.

[0035] See also Figure 1 A shielding ring 11 is fixedly connected to the outer peripheral side of the pier 1, and the shielding ring 11 extends obliquely downward, and is located near the reinforcement body 2. A drainage surface 22 extending obliquely downward in a direction away from the pier 1 is provided on the top of the reinforcement body 2. When it rains, rainwater falling on the shielding ring 11 flows along the shielding ring 11 to the top of the reinforcement body 2, and rainwater falling on the top of the reinforcement body 2 flows along the guide surface 4331, away from the connection between the reinforcement body 2 and the pier 1, which is conducive to reducing the possibility of rainwater entering the connection between the reinforcement body 2 and the pier 1.

[0036] See also Figure 2, a mounting ring 3 is provided inside the reinforcement body 2, the mounting ring 3 is sleeved on the outer peripheral side of the pier 1, and the inner peripheral side wall of the mounting ring 3 abuts against the outer peripheral side of the pier 1. During construction, the mounting ring 3 is sleeved on the outer peripheral side of the pier 1 first, and then the reinforcement body 2 is poured, so that the mounting ring 3 can be located inside the reinforcement body 2 after the reinforcement body 2 is solidified and formed, and the mounting ring 3 is located near the top of the reinforcement body 2.

[0037] See also Figure 2 and Figure 3 The inner side wall of the mounting ring 3 is provided with a sealing groove 311 extending in the circumferential direction. The mounting ring 3 is provided with a sealing ring 31. The sealing ring 31 is installed in the sealing groove 311, and the inner side of the sealing ring 31 abuts against the outer side of the pier 1, which is conducive to improving the sealing degree between the mounting ring 3 and the pier 1 and reducing the possibility of rainwater infiltration downward. The mounting ring 3 is provided with a storage groove 321 surrounding and connected to the sealing groove 311. The mounting ring 3 is provided with a water storage bag 32, and the water storage bag 32 is installed in the storage groove 321. The water storage bag 32 is made of a material with elastic deformation ability such as rubber or silicone. The inside of the water storage bag 32 is hollow and stores water. The inner side wall of the water storage bag 32 abuts against the outer side wall of the sealing ring 31.

[0038] See also Figure 2 and Figure 3 A plurality of pressurized grooves 331 are provided in the mounting ring 3. The pressurized grooves 331 are arranged at intervals along the circumferential direction and are located on the side of the storage groove 321 away from the sealing groove 311. The mounting ring 3 is provided with a pressurized bag 33. The pressurized bag 33 corresponds to the pressurized groove 331 one by one and is installed in the pressurized groove 331. The pressurized bag 33 is made of a material with elastic deformation ability such as rubber and silicone. The pressurized bag 33 is hollow inside and stores water. The mounting ring 3 is provided with a connecting pipe 34 corresponding to the pressurized bag 33 one by one. One end of the connecting pipe 34 is connected to the top part of the pressurized bag 33, and the other end is connected to the water storage bag 32. When the pressurized bag 33 is squeezed, the water in the pressurized bag 33 flows into the water storage bag 32. Then, since the water storage bag 32 is restricted by the wall of the storage groove 321, the water storage bag 32 begins to expand toward the sealing groove 311, squeezing the sealing ring 31, thereby increasing the strength of the sealing ring 31 against the outer peripheral side of the pier 1, and further increasing the sealing ability of the sealing ring 31. At the same time, the water in the water storage bag 32 can flow, so that the force of the water storage bag 32 expanding and squeezing the sealing ring 31 is relatively uniform, that is, each part of the sealing ring 31 can be affected by the force from the water storage bag 32.

[0039] See also Figure 2 and Figure 3The mounting ring 3 is provided with a pressing plate 35, which corresponds to the pressurizing bag 33 one by one and slides up and down in the pressurizing groove 331. The pressing plate 35 is located at the bottom of the pressurizing bag 33 and is connected and fixed to the outer wall of the pressurizing bag 33. The outer peripheral side of the reinforcement body 2 is provided with a floating ring 21 which can be made of foam material. When it rains, the water level around the reinforcement body 2 rises, and at this time, the floating ring 21 moves upward following the rise of the water level.

[0040] See also Figure 2 and Figure 3 The mounting ring 3 is provided with a driving assembly 4, which includes a driving column 41, a driving plate 42 and a connecting column 43. The connecting column 43 corresponds to the extrusion plate 35 one by one and is slidably arranged in the mounting ring 3 up and down. The bottom of the connecting column 43 is fixedly connected to the middle position of the top of the extrusion plate 35. The pressurized bag 33 is annular and sleeved on the outer peripheral side of the connecting column 43. The outer peripheral side of the connecting column 43 is sleeved with a mounting sleeve 431. The bottom of the mounting sleeve 431 is fixed to the top of the mounting ring 3. The mounting sleeve 431 extends upward and protrudes outside the reinforcement body 2, which is conducive to reducing the possibility of the connecting column 43 and the reinforcement body 2 being connected and fixed. A sealing ring 4311 is embedded and fixed on the inner wall of the mounting sleeve 431. The inner peripheral side of the sealing ring 4311 is in sliding contact with the outer peripheral side of the connecting column 43, which reduces the possibility of water flow penetrating between the mounting sleeve 431 and the connecting column 43. The driving plate 42 corresponds to the connecting column 43 one by one and is fixedly connected to the top of the connecting column 43. The driving plate 42 extends to the top of the floating ring 21 in a direction away from the bridge pier 1. The driving column 41 corresponds to the connecting column 43 one by one and is fixed to the top of the floating ring 21. The driving column 41 slides up and down through the driving plate 42. Two driving blocks 411 are symmetrically fixed on the outer peripheral side of the driving column 41, and the driving plate 42 is located between the two driving blocks 411.

[0041] See also Figure 2 and Figure 3 When the floating ring 21 moves upward, the driving column 41 first slides upward on the driving plate 42 until the driving block 411 located below abuts against the bottom of the driving plate 42. Then, when the floating ring 21 continues to move upward, the driving block 411 drives the driving plate 42 to move upward. At this time, the connecting column 43 drives the extrusion plate 35 to slide upward to squeeze the pressurization bag 33, so that the water in the pressurization bag 33 flows into the water storage bag 32. When the floating ring 21 moves downward, the driving column 41 first slides on the driving plate 42 until the driving block 411 located above abuts against the top of the driving plate 42, and then the floating ring 21 continues to move downward. At this time, the driving block 411 located above drives the driving plate 42 to move downward, so that the connecting column 43 drives the extrusion plate 35 to slide downward, which is conducive to driving the pressurization bag 33 to recover and re-absorb the water flow in the water storage bag 32 into the pressurization bag 33. At this time, the sealing ring 31 abuts against the pier 1 with downward strength, which is conducive to reducing the difficulty of water that enters the connection between the pier 1 and the reinforcement body 2 through other means and evaporates through the sealing ring 31.

[0042] See also Figure 3 and Figure 4 , the outer peripheral side of the connecting column 43 is provided with a mounting groove 432 extending in the horizontal direction, and the mounting groove 432 has multiple and is arranged at intervals in the vertical direction. The connecting column 43 is provided with a support column 433 corresponding to the mounting groove 432 one by one, and the support column 433 is slidably connected in the mounting groove 432. The connecting column 43 is provided with a push spring 434, which corresponds to the mounting groove 432 one by one and is installed in the mounting groove 432, and one end of the push spring 434 abuts against the support column 433, and the other end abuts against the groove wall of the mounting groove 432. When in use, the push spring 434 is elastically released, pushing the support column 433 to slide out of the mounting groove 432. When the connecting column 43 slides upward until the mounting groove 432 slides out of the mounting sleeve 431, the push spring 434 is elastically released, pushing the support column 433 to slide and protrude outside the mounting groove 432, restricting the connecting column 43 from sliding downward, which is conducive to keeping the state of the water storage bag 32 squeezing the sealing ring 31.

[0043] See also Figure 2 and Figure 4 The connecting column 43 is provided with a control component 5. When the floating ring 21 moves downward and drives the driving block 411 located above to approach the driving plate 42, the control component 5 controls the supporting column 433 to slide into the installation groove 432, so that the connecting column 43 can slide into the installation sleeve 431 after the water level drops.

[0044] See also Figure 2 and Figure 4 The control assembly 5 includes a control column 51 and a control rope 52. A control groove extending downward is provided at the top of the connecting column 43, and the control column 51 slides up and down in the control groove. There are multiple control ropes 52 and they correspond to the support columns 433 one by one. The control rope 52 is slidably passed through the connecting column 43 and one end is fixed to the support column 433, and the other end is fixed to the outer peripheral side of the control column 51 after passing through the push spring 434. The driving block 411 located above is fixedly connected to the side close to the bridge pier 1 with a power plate 421, and the power plate 421 extends toward the bridge pier 1 until the power plate 421 is located directly above the control column 51. When the floating ring 21 moves downward, the power plate 421 abuts against the top of the control column 51 downward, and when the control column 51 is driven to slide downward into the control groove, the control column 51 drives the support column 433 to slide into the installation groove 432 through the control rope 52. An arc-shaped guide surface 4331 is formed at one end of the support column 433 away from the push spring 434. When the connecting column 43 slides downward, the guide surface 4331 guides the support column 433 to slide on the inner wall of the installation sleeve 431, thereby reducing the resistance encountered by the support column 433 when sliding on the inner wall of the installation sleeve 431.

[0045] The implementation principle of the pier reinforcement structure of a steel structure bridge in the embodiment of the present application is:

[0046] When it rains, the water level around the reinforcement body 2 rises, and the floating ring 21 moves upward. The upward movement of the connecting column 43 drives the extrusion plate 35 to squeeze the pressure bag 33, so that the water flows into the water storage bag 32 to drive the water storage bag 32 to expand, squeeze the sealing ring 4311, and improve the sealing degree between the sealing ring 4311 and the bridge pier 1. At the same time, during the upward movement of the connecting column 43, the supporting column 433 slides out of the installation groove 432, so that the supporting column 433 can abut the top of the installation sleeve 431, which is conducive to limiting the downward movement of the connecting column 43 and maintaining the expansion and squeezing state of the water storage bag 32. 31. When the rain stops and the surrounding water level drops, driving the floating ring 21 to move downward, the power plate 421 squeezes the control column 51, drives the supporting column 433 to slide into the installation groove 432, so that the connecting column 43 can slide downward into the installation sleeve 431, which is conducive to the water storage bag 32 returning to the state before deformation, and reduces the difficulty of water that enters the connection between the bridge pier 1 and the reinforcement body 2 through other means and evaporates and passes through the sealing ring 31.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pier reinforcement structure for a steel structure bridge, characterized in that: The invention comprises a bridge pier (1) and a reinforcement body (2) for reinforcing the bridge pier (1), wherein a mounting ring (3) surrounding the bridge pier (1) is arranged in the reinforcement body (2), the inner wall of the mounting ring (3) abuts against the outer wall of the bridge pier (1), the inner wall of the mounting ring (3) is provided with a sealing ring (31) surrounding the bridge pier (1) and abutting against the outer peripheral side of the bridge pier (1), a water storage bag (32) storing water inside and surrounding the sealing ring (31) is arranged in the mounting ring (3), the inner peripheral side wall of the water storage bag (32) abuts against the outer peripheral side wall of the sealing ring (31), a plurality of pressurizing bags (33) arranged at intervals along the circumferential direction and surrounding the water storage bag (32) are arranged in the mounting ring (3), and the pressurizing bags (33) surrounding the water storage bag (32) are arranged in the mounting ring (3), and the pressurizing bags (33) surrounding the water storage bag (32) are provided. The pressure bag (33) is provided with a connecting pipe (34) connected to the water storage bag (32), and an extrusion plate (35) corresponding to the pressure bag (33) and located at the bottom of the pressure bag (33) is slidable up and down inside the mounting ring (3), and a floating ring (21) that moves with the water level is slidable up and down on the outer peripheral side of the reinforcement body (2), and the mounting ring (3) is provided with a driving component (4) connecting the floating ring (21) and the extrusion plate (35), and when the floating ring (21) moves upward, the driving component (4) drives the extrusion plate (35) to extrude the pressure bag (33), and when the floating ring (21) moves downward, the driving component (4) drives the extrusion plate (35) to move away from the pressure bag (33).

2. The pier reinforcement structure of a steel structure bridge according to claim 1 is characterized in that: The driving assembly (4) comprises a driving column (41), a driving plate (42) and a connecting column (43); the connecting column (43) is slidably arranged in the mounting ring (3) and the reinforcement body (2) in an up-and-down manner; the connecting column (43) corresponds to the extrusion plate (35) in a one-to-one manner and the bottom is fixed to the top of the extrusion plate (35); the driving column (41) corresponds to the connecting column (43) in a one-to-one manner and is arranged at the top of the floating ring (21); the driving plate (42) is fixed to the top of the connecting column (43); the driving column (41) is slidably arranged in the driving plate (42) in an up-and-down manner; driving blocks (411) are symmetrically arranged on the outer peripheral side of the driving column (41); and the driving plate (42) is located between the upper and lower driving blocks (411).

3. The pier reinforcement structure of a steel structure bridge according to claim 2 is characterized in that: The mounting ring (3) is provided with a mounting sleeve (431) which is penetrated through the reinforcement body (2) and protrudes out of the reinforcement body (2), and the connecting column (43) slides up and down on the mounting sleeve (431).

4. The pier reinforcement structure of a steel structure bridge according to claim 3 is characterized in that: A plurality of mounting grooves (432) extending in a horizontal direction are evenly formed on the upper and lower outer peripheral sides of the connecting column (43); the connecting column (43) is provided with a supporting column (433) corresponding to the mounting groove (432) one by one and sliding in the mounting groove (432); the connecting column (43) is provided with a pushing spring (434) for driving the supporting column (433) to protrude into the mounting groove (432); and the connecting column (43) is provided with a control component (5) for controlling the supporting column (433) to slide into the mounting groove (432) when the driving block (411) located above approaches the driving plate (42).

5. The pier reinforcement structure of a steel structure bridge according to claim 4 is characterized in that: The control assembly (5) comprises a control column (51) and a control rope (52); the control column (51) slides up and down on the connecting column (43) and protrudes upwards out of the connecting column (43); the control rope (52) corresponds to the support column (433) one by one and one end is connected to the support column (433); the other end passes through a push spring (434) and is connected to the outer peripheral side of the control column (51); the driving block (411) located above is provided with a power plate (421) extending to the top of the control column (51).

6. The pier reinforcement structure of a steel structure bridge according to claim 4, characterized in that: A guide surface (4331) is provided on a side of the support column (433) away from the push spring (434).

7. The pier reinforcement structure of a steel structure bridge according to claim 3 is characterized by: The inner peripheral side wall of the mounting sleeve (431) is provided with a sealing ring (4311) for abutting against the outer peripheral side of the connecting column (43).

8. The pier reinforcement structure of a steel structure bridge according to claim 1, characterized in that: The extrusion plate (35) is fixedly connected to the pressurized bag (33).

9. The pier reinforcement structure of a steel structure bridge according to claim 1, characterized in that: A drainage surface (22) is provided on the top of the reinforcement body (2) in a direction inclined downward away from the pier (1), and a shielding ring (11) is provided on the outer peripheral side of the pier (1) and close to the reinforcement body (2).

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