Maintenance device for bridge bearing platform

Abstract

The utility model relates to the field of overhauling devices, in particular to a bridge bearing platform overhauling device which comprises a bearing and supporting mechanism and a plurality of bearing and hanging mechanisms arranged on the bearing and supporting mechanism. The upper supporting assembly comprises bailey supporting pads arranged on the two bearing platforms correspondingly, an upper bearing beam erected on the bailey supporting pads correspondingly and a supporting plate. The lower supporting assembly comprises a lower bearing beam arranged below the upper bearing beam. The lifting mechanism comprises jacks, a lifting rod and a pressure sensor, the jacks are installed on the upper bearing beam and the supporting plate respectively, one end of the lifting rod is connected with the jacks to drive the lifting rod to ascend and descend, and the other end of the lifting rod is connected with the lower bearing beam; the pressure sensor is arranged on the jack, and the suspender abuts against the pressure sensor so as to detect the tension of the suspender. By adopting the device, the normal lowering of the hanging box is ensured, and the structure is simple and reliable.

Description

Technical Field

[0001] This utility model relates to the field of maintenance devices, and in particular to a maintenance device for bridge abutments. Background Technology

[0002] The bridge is constructed primarily by sequentially installing main piers, abutments, and pile foundations across the river and sea. The abutments are not only subjected to repeated erosion by corrosive tidal waters but also to the influence of organisms such as snails and oysters, as well as the rise and fall of the tide level. Therefore, over long-term use, the abutments will experience wear and tear. To ensure the bridge's safe operation, maintenance is necessary.

[0003] Existing maintenance devices are generally installed between two adjacent foundations. Support components are erected on these foundations, and the caisson is suspended from the support components before being lowered. Once in place, divers go underwater to seal the gap between the bottom of the caisson and the foundation. After sealing, underwater sealing is performed, followed by concrete pouring. The current lowering method uses multiple jacks and multiple steel rods connected to the caisson. Multiple jacks are activated simultaneously, and the caisson is lowered via the steel rods. Because the jacks and steel rods are one-to-one, uneven lowering speeds during the process can easily cause the caisson to tilt, or even collide with nearby structures (e.g., foundations). Furthermore, interference with buildings can prevent lowering, significantly impacting construction progress, increasing maintenance costs, and making it difficult to effectively control the speed and position of the caisson's descent. In addition, existing maintenance devices are complex, heavy, and unreliable. They are costly to manufacture and not only affect the efficiency of lowering the caisson but also compromise the overall structural reliability and stability, resulting in poor safety. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a maintenance device for bridge abutments that ensures the normal lowering of the caisson, and has a simple and reliable structure.

[0005] To solve the above-mentioned technical problems, this utility model provides a maintenance device for bridge abutments. The maintenance device is located between two adjacent abutments and includes a support mechanism and several lifting mechanisms on the support mechanism. The support mechanism includes an upper support assembly and a lower support assembly. The upper support assembly includes Bailey bridge supports respectively on the two abutments, upper load-bearing beams respectively mounted on the Bailey bridge supports, and a support plate. The lower support assembly includes a lower load-bearing beam located below the upper load-bearing beam.

[0006] The lifting mechanism includes a jack, a boom, and a pressure sensor. The jack is installed on the upper load-bearing beam and the support plate respectively. One end of the boom is connected to the jack to drive the boom to rise and fall, and the other end is connected to the lower load-bearing beam. The pressure sensor is located on the jack, and the boom and the pressure sensor abut against each other to detect the boom tension.

[0007] As an improvement to the above solution, the upper load-bearing beam is provided with a first load-bearing position, the lower load-bearing beam is provided with a first lower connecting position, the jack is provided on the first load-bearing position, and the lifting rod is fixedly provided on the lower connecting position;

[0008] The first load-bearing position and the first lower connection position are set in a one-to-one correspondence.

[0009] As an improvement to the above solution, the support plate is provided with a second load-bearing position, and the jack is provided on the second load-bearing position; the lower load-bearing beam is provided with a second lower connection position;

[0010] The second load-bearing position and the second lower connection position are set in a one-to-one correspondence.

[0011] As an improvement to the above solution, the Bailey support and the upper load-bearing beam are connected perpendicularly to each other;

[0012] The support plate and the Bailey pad are connected at the middle, and the upper load-bearing beams are symmetrically arranged on both sides of the support plate.

[0013] As an improvement to the above solution, the lifting rod is made of threaded steel.

[0014] The support plate is made of concrete.

[0015] As an improvement to the above solution, the lower support assembly also includes a distribution beam, which is mounted on the lower load-bearing beam.

[0016] As an improvement to the above scheme, the lower load-bearing beam and the distribution beam are connected perpendicularly to each other.

[0017] As an improvement to the above solution, the jack is a through-hole jack;

[0018] The jack includes a jack body, a piston, and fasteners. The piston is located inside the jack body. One end of the lifting rod passes through the jack body and the piston. The piston is located inside the jack body. The pressure sensor is located on the piston. The lifting rod abuts against the pressure sensor through the fasteners.

[0019] As an improvement to the above solution, a support pad is provided between the jack body and the upper load-bearing beam;

[0020] A support pad is provided between the jack body and the support plate.

[0021] As an improvement to the above solution, a suspended box is also included, which includes a bottom template and side templates disposed around the bottom template, the bottom template being placed on a lower support assembly.

[0022] Implementing this utility model has the following beneficial effects:

[0023] This utility model's bridge pier maintenance device is equipped with a pressure sensor, which is mounted on the jacks, and the lifting rods rest on the pressure sensor. During the lowering of the caisson, the tension in the lifting rods can be monitored in real time, allowing for timely adjustment of the jacks to ensure synchronized lowering of each lifting rod, preventing caisson tilting, ensuring construction progress, and reducing maintenance costs. Furthermore, the pressure sensor can assess the stress condition of the caisson and effectively and precisely control its lowering speed and position.

[0024] Furthermore, the Bailey bridge support enhances the overall structural strength. Combined with the upper load-bearing beam and support plate, which work together to support the lower load-bearing beam and other lower support components, the overall structural strength is significantly strengthened, ensuring the reliability and stability of the lifting and lowering of the lower load-bearing beam and other components, and guaranteeing the normal lowering of the caisson. Therefore, this utility model has a simple, lightweight, and high-strength overall structure, improving the lowering efficiency of the caisson, enhancing the reliability and stability of the overall structure, and ensuring high safety. Attached Figure Description

[0025] Figure 1 This is a front view of the bridge pier maintenance device of this utility model in use.

[0026] Figure 2 yes Figure 1 Side view;

[0027] Figure 3 yes Figure 2 Enlarged view of point A;

[0028] Figure 4 yes Figure 1 Top view of the upper support component;

[0029] Figure 5 yes Figure 1 Bottom view of the lower support component. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0031] See Figure 1-5This utility model discloses a maintenance device for bridge abutments. The maintenance device is located between two adjacent abutments 100 and includes a support mechanism and several lifting mechanisms on the support mechanism. The support mechanism includes an upper support assembly and a lower support assembly. The upper support assembly includes Bailey bridge supports 1 respectively on the two abutments 100, upper load-bearing beams 2 respectively mounted on the Bailey bridge supports 1, and a support plate 3. The lower support assembly includes a lower load-bearing beam 4 located below the upper load-bearing beam 2.

[0032] The lifting mechanism includes a jack 6, a lifting rod 7, and a pressure sensor 8. The jack 6 is mounted on the upper load-bearing beam 2 and the support plate 3 respectively. One end of the lifting rod 7 is connected to the jack 6 to drive the lifting rod 7 to rise and fall, and the other end is connected to the lower load-bearing beam 4. The pressure sensor 8 is located on the jack 6, and the lifting rod 7 and the pressure sensor 8 abut against each other to detect the tension of the lifting rod 7. The lifting rod 7 is preferably made of threaded steel, which has high strength. The support plate 3 is preferably made of concrete, which has low cost and high strength.

[0033] This utility model's bridge pier maintenance device is equipped with a pressure sensor, which is mounted on the jacks, and the lifting rods rest on the pressure sensor. During the lowering of the caisson, the tension in the lifting rods can be monitored in real time, allowing for timely adjustment of the jacks to ensure synchronized lowering of each lifting rod, preventing caisson tilting, ensuring construction progress, and reducing maintenance costs. Furthermore, the pressure sensor can assess the stress condition of the caisson and effectively and precisely control its lowering speed and position.

[0034] Furthermore, the Bailey bridge support enhances the overall structural strength. Combined with the upper load-bearing beam and support plate, which work together to support the lower load-bearing beam and other lower support components, the overall structural strength is significantly strengthened, ensuring the reliability and stability of the lifting and lowering of the lower load-bearing beam and other components, and guaranteeing the normal lowering of the caisson. Therefore, this utility model has a simple, lightweight, and high-strength overall structure, improving the lowering efficiency of the caisson, enhancing the reliability and stability of the overall structure, and ensuring high safety.

[0035] It should be noted that, as Figure 2 , 5 As shown, this utility model also includes a suspended box, which includes a bottom template 9 and side templates 10 arranged around the bottom template 9. The bottom template 9 is placed on the lower support assembly. The lifting rod 7 is driven to rise and fall by the jack 6, which in turn drives the lower support assembly to rise and fall, thereby driving the suspended box to rise and fall.

[0036] Specifically, such as Figure 4-5As shown, the upper load-bearing beam 2 has a first load-bearing position 21, the lower load-bearing beam 4 has a first lower connecting position 41, the jack 6 is mounted on the first load-bearing position 21, and the lifting rod 7 is fixedly mounted on the lower connecting position 41. The first load-bearing position 21 and the first lower connecting position 41 are arranged in a one-to-one correspondence to ensure that the lifting rod is in a vertical state, ensuring that the jack can smoothly lift or lower the lifting rod, ensuring that the lower support assembly and the hoisting box rise and fall vertically, avoiding tilting of the hoisting box, ensuring the normal lowering of the hoisting box, thereby ensuring the construction progress and reducing maintenance costs. It also enables the pressure sensor to detect the accurate tension of the lifting rod, thereby effectively and precisely controlling the speed and position of the hoisting box lowering.

[0037] Preferably, such as Figure 2 , 4 As shown, the support plate 3 has a second load-bearing position 31, and the jack 6 is mounted on the second load-bearing position 31; the lower load-bearing beam 4 has a second lower connecting position 42; the second load-bearing position 31 and the second lower connecting position 42 are arranged in a one-to-one correspondence. The support plate connects the two Bailey bridge supports, thereby strengthening the overall structural strength. The support plate also has load-bearing positions, meaning some of the jacks are mounted on the support plate, serving a supporting function similar to the upper load-bearing beam. These positions correspond one-to-one with the second lower connecting positions of the lower load-bearing beam below the support plate, ensuring the boom is vertical and allowing the jacks to smoothly lift or lower the boom. This ensures the lower support assembly and the hoisting box move vertically, preventing the hoisting box from tilting and ensuring normal lowering, thus ensuring construction progress and reducing maintenance costs. It also allows the pressure sensor to detect accurate boom tension, effectively controlling the speed and position of the hoisting box's descent.

[0038] Preferably, the Bailey support 1 and the upper load-bearing beam 2 are perpendicularly connected to each other to form a stable "well" structure, which effectively improves the reliability and stability of the upper support component, thereby improving the strength of the overall structure.

[0039] Preferably, such as Figure 4 As shown, the support plate 3 and the Bailey support 1 are connected at the middle, and the upper load-bearing beams 2 are symmetrically arranged on both sides of the support plate 3. Specifically, the number of upper load-bearing beams 2 on both sides of the support plate 3 is the same, and the distance from the support plate 3 is the same. This includes the symmetrical arrangement of the first load-bearing positions 21 to ensure the overall structural stress balance, thereby ensuring the stability of the lowering of the caisson. More preferably, the second load-bearing positions 31 are evenly distributed on the support plate 3.

[0040] Preferably, such as Figure 2 , 5As shown, the lower support assembly also includes a distribution beam 5, which is mounted on the lower load-bearing beam 4. The distribution beam 5 and the lower load-bearing beam 4 are fixedly connected to ensure the stability of the lower support assembly structure, thereby ensuring the stable lowering of the caisson. The distribution beam also increases the strength of the lower support assembly, providing effective support for the caisson.

[0041] More preferably, the lower load-bearing beam 4 and the distribution beam 5 are perpendicularly connected to each other to form a stable "well" structure, which effectively improves the reliability and stability of the lower support components, thereby improving the overall structural strength.

[0042] Furthermore, such as Figure 3 As shown, the jack 6 is a through-type jack. The jack 6 includes a jack body 61, a piston (not shown), and fasteners 63. The piston is located inside the jack body 61. One end of the lifting rod 7 passes through the jack body 61 and the piston 62. The pressure sensor 8 is located on the piston 62. The lifting rod 7 is connected to the pressure sensor 8 via the fasteners 63. The piston is driven by oil intake or exhaust from the jack body, which in turn drives the lifting rod to rise and fall. The pressure sensor 8 and the lifting rod 7 are configured in a one-to-one correspondence, allowing real-time detection of the tension in each lifting rod and the stress at different positions of the hoisting box. The oil supply to the jacks at different positions can be adjusted according to the stress state, ensuring synchronous movement of the lifting rods, stable lowering of the hoisting box, preventing tilting, and effectively and precisely controlling the lowering speed and position of the hoisting box.

[0043] Preferably, such as Figure 2-3 As shown, a first support pad 64 is provided between the jack body 61 and the upper load-bearing beam 2. The first support pad allows the jack body to be stably and reliably installed on the upper load-bearing beam, ensuring the normal operation of the jack. Specifically, the support pad 64 and the first load-bearing position 21 are configured in a one-to-one correspondence.

[0044] Preferably, such as Figure 2 As shown, a second support pad 62 is provided between the jack body 61 and the support plate 3. The second support pad allows the jack body to be stably and reliably mounted on the support plate, ensuring the normal operation of the jack. Specifically, the support pad 64 and the second load-bearing position 31 are provided in a one-to-one correspondence.

[0045] In summary, this utility model provides a maintenance device for bridge abutments, ensuring the normal lowering of the caisson, and is simple and reliable in structure.

[0046] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A maintenance device for bridge piers, wherein the maintenance device is disposed between two adjacent piers, characterized in that, It includes a support mechanism and several lifting mechanisms on the support mechanism. The support mechanism includes an upper support assembly and a lower support assembly. The upper support assembly includes Bailey pads respectively mounted on two piers, upper load-bearing beams respectively mounted on the Bailey pads, and a support plate. The lower support assembly includes a lower load-bearing beam located below the upper load-bearing beam. The lifting mechanism includes a jack, a boom, and a pressure sensor. The jack is installed on the upper load-bearing beam and the support plate respectively. One end of the boom is connected to the jack to drive the boom to rise and fall, and the other end is connected to the lower load-bearing beam. The pressure sensor is located on the jack, and the boom and the pressure sensor abut against each other to detect the boom tension.

2. The bridge pier maintenance device as described in claim 1, characterized in that, The upper load-bearing beam is provided with a first load-bearing position, the lower load-bearing beam is provided with a first lower connecting position, the jack is provided on the first load-bearing position, and the lifting rod is fixedly provided on the lower connecting position; The first load-bearing position and the first lower connection position are set in a one-to-one correspondence.

3. The bridge pier maintenance device as described in claim 2, characterized in that, The support plate is provided with a second load-bearing position, and the jack is provided on the second load-bearing position; the lower load-bearing beam is provided with a second lower connecting position; The second load-bearing position and the second lower connection position are set in a one-to-one correspondence.

4. The bridge pier maintenance device as described in claim 1, characterized in that, The Bailey support and the upper load-bearing beam are connected perpendicularly to each other; The support plate and the Bailey pad are connected at the middle, and the upper load-bearing beams are symmetrically arranged on both sides of the support plate.

5. The bridge pier maintenance device as described in claim 1, characterized in that, The lifting rod is made of threaded steel. The support plate is made of concrete.

6. The bridge pier maintenance device as described in claim 1, characterized in that, The lower support assembly also includes a distribution beam, which is mounted on the lower load-bearing beam.

7. The bridge pier maintenance device as described in claim 6, characterized in that, The lower load-bearing beam and the distribution beam are connected perpendicularly to each other.

8. The bridge pier maintenance device as described in claim 1, characterized in that, The jack is a through-type jack; The jack includes a jack body, a piston, and fasteners. The piston is located inside the jack body. One end of the lifting rod passes through the jack body and the piston. The pressure sensor is located on the piston. The lifting rod abuts against the pressure sensor through the fasteners.

9. The bridge pier maintenance device as described in claim 8, characterized in that, A first support pad is provided between the jack body and the upper load-bearing beam; A second support pad is provided between the jack body and the support plate.

10. The maintenance device for bridge piers as described in any one of claims 1-9, characterized in that, It also includes a caisson, which includes a bottom template and side templates arranged around the bottom template, with the bottom template placed on a lower support assembly.

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