Bridge underpinning jacking equipment

Abstract

The utility model discloses bridge underpinning and jacking equipment which comprises a device body, and the device body comprises an original bearing table, a group of first steel supports, a group of second steel supports, a group of supporting blocks, a supporting bridge and a section steel transverse connection reinforcing device. The first steel support, the second steel support and the supporting block are all installed on the top of an original bearing table, the supporting bridge is supported on the first steel support and the second steel support, and the multiple sets of profile steel transverse connection reinforcing devices are installed between the first steel support and the second steel support. The first steel support and the second steel support are each of a cylindrical structure, and conversion connectors are installed on the tops of the first steel support and the second steel support. The device is good in economical efficiency, the early-stage installation time of the steel support and the installation and replacement time of the steel support during jacking are greatly shortened, the work efficiency is improved, and the construction safety risk of workers is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of bridge underpinning and jacking technology, specifically to a bridge underpinning and jacking device. Background Technology

[0002] With my country's rapid social development, the demand for transportation is constantly increasing. However, due to the early construction of bridges in some Chinese cities, they can no longer meet current transportation needs, necessitating the renovation and optimization of various outstanding bridge issues. The usual approach to bridge renovation and optimization is demolition and reconstruction. However, this process significantly impacts traffic, prolongs the renovation period, and incurs substantial costs. Therefore, the jacking and replacement technology for existing bridges has emerged. In current urban renewal projects, jacking and replacement technology is a crucial aspect of existing bridge renovation and optimization. It extends the lifespan of bridges, saving costs and resources; promotes urban development and transportation construction; maintains and upgrades existing infrastructure; and is an important means of driving sustainable urban development.

[0003] Existing bridge underpinning and jacking equipment has the following drawbacks:

[0004] Existing bridge support and jacking equipment is not economically viable, and the installation of steel supports involves a large workload. Most steel support installations require manual labor, which greatly increases the safety risks for workers. Furthermore, the installation and replacement of steel supports during jacking takes a long time, reduces efficiency, and poses significant safety hazards.

[0005] Therefore, a solution is needed. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a bridge support and lifting device to solve the problems mentioned in the background section.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a bridge support and lifting device, comprising a device body, the device body including an original load-bearing platform, a first steel support, a second steel support, a support block, a supporting bridge, and a transverse steel connection and reinforcement device. Each of the first and second steel supports is provided in a set. The first steel support, the second steel support, and the support block are all installed on the top of the original load-bearing platform. The first steel support is located to the left of the support block, and the second steel support is located to the right of the support block. The supporting bridge is supported on the first and second steel supports. Several sets of the transverse steel connection and reinforcement device are provided, and these sets are installed between the first and second steel supports. Both the first and second steel supports are cylindrical structures. A conversion joint is installed at the top of each of the first and second steel supports. A lifting jack is installed at the top of the conversion joint. A steel distribution beam is installed at the top drive end of the lifting jack. The steel distribution beam is square in shape, and a beam bottom leveling pad is provided between the top of the steel distribution beam and the bottom of the supporting bridge.

[0010] Preferably, the bottom of the supporting bridge is equipped with two sets of transversely equidistant jacks, and a modular steel pad is provided between the bottom drive end of the jack and the top of the support block.

[0011] Preferably, a displacement sensor is installed between the bottom of the supporting bridge and the supporting block, and the displacement sensor is located between the two sets of jacks.

[0012] Preferably, the transverse connection reinforcement device for the steel profile includes a bottom reinforcement plate, a top reinforcement plate, and reinforcing arms. Both the bottom reinforcement plate and the top reinforcement plate are rectangular in shape. The top of the bottom reinforcement plate and the top reinforcement plate are provided with a set of locking sleeves distributed transversely at equal intervals. The bottom reinforcement plate is located below the top reinforcement plate. Several sets of reinforcing arms are provided, and the several sets of reinforcing arms are installed on the outside of the bottom reinforcement plate and the top reinforcement plate. The several sets of reinforcing arms are installed in a triangular shape.

[0013] (III) Beneficial Effects

[0014] This utility model provides a bridge underpinning and lifting device. It has the following beneficial effects:

[0015] In this solution, one type of bridge support and jacking equipment is a single-set steel support with pier jacking support method. This method uses half the amount of steel support material as double-set steel supports, which is economical. The initial installation time of the steel support and the installation and replacement time of the steel support during jacking are greatly reduced, increasing work efficiency and greatly reducing the safety risks for workers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall initial state of this utility model;

[0018] Figure 3 This is a structural diagram of the overall working state of this utility model.

[0019] In the diagram: 1. Device body; 2. Original load-bearing platform; 3. First steel support; 4. Second steel support; 5. Support block; 6. Support bridge; 7. Lateral steel connection reinforcement device; 8. Converter joint; 9. Lifting jack; 10. Steel distribution beam; 11. Beam bottom leveling pad; 12. Replacement jack; 13. Modular steel pad; 14. Displacement sensor; 15. Bottom reinforcement plate; 16. Top reinforcement plate; 17. Reinforcing arm; 18. Locking sleeve. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-3 This utility model provides a technical solution:

[0022] Example

[0023] To address the aforementioned issues: existing bridge support and jacking equipment is not economically viable, the steel support installation work is extensive, and most steel support installations require manual labor, which greatly increases the safety risks for workers. Furthermore, the installation and replacement of steel supports during jacking takes a long time, reduces efficiency, and poses significant safety hazards.

[0024] The solution is as follows: A bridge underpinning and lifting device includes a device body 1. The device body 1 includes an original load-bearing platform 2, a first steel support 3, a second steel support 4, a support block 5, a supporting bridge 6, and a transverse steel connection and reinforcement device 7. The first steel support 3 and the second steel support 4 are each provided in a set. The first steel support 3, the second steel support 4, and the support block 5 are all installed on top of the original load-bearing platform 2. The first steel support 3 is located to the left of the support block 5, and the second steel support 4 is located to the right of the support block 5. The supporting bridge 6 is supported on the first steel support 3 and the second steel support 4. The transverse connection and reinforcement device 7 of the steel profile is provided in several sets, and the several sets of the transverse connection and reinforcement device 7 of the steel profile are installed between the first steel support 3 and the second steel support 4. The first steel support 3 and the second steel support 4 are both cylindrical structures, and the top of the first steel support 3 and the second steel support 4 are equipped with conversion joints 8. The top of the conversion joints 8 is equipped with lifting jacks 9. The top driving end of the lifting jacks 9 is equipped with steel distribution beams 10. The steel distribution beams 10 are square in shape. The top of the steel distribution beams 10 and the bottom of the supporting bridge 6 are provided with beam bottom leveling pads 11. The bottom of the supporting bridge 6 is equipped with two sets of transversely equidistant supporting jacks 12. The bottom driving end of the supporting jacks 12 and the top of the support block 5 are provided with modular steel pads 13. During the lifting operation, a set of lifting jacks 9 on the first steel support 3 and the second steel support 4 lift the supporting bridge 6. The lifting jacks 9 move the steel distribution beam 10 to lift the supporting bridge 6 at the top. The leveling pads 11 on the top of the steel distribution beam 10 and the bottom of the supporting bridge 6 can achieve the purpose of leveling and buffering, improving the safety of the lifting. When lifting the supporting bridge 6, the jacks 12 on the supporting bridge 6 can be lifted up, so that there is space between the bottom of the jacks 12 and the modular steel pads 13. At this time, the workers can add more modular steel pads 13 to the original modular steel pads 13. Finally, the bottom drive end of the jacks 12 contacts the modular steel pads 13 below, and then the drive end of the jacks 12 drives downward to lift the supporting bridge 6.

[0025] A displacement sensor 14 is installed between the bottom of the supporting bridge 6 and the supporting block 5. The displacement sensor 14 is located between the two sets of jacks 12. The displacement sensor 14 is a lifting height control device. When a deviation occurs, the displacement sensor 14 can detect it, thereby improving the safety during lifting. The displacement sensor 14 is a KEYENCE LK-G series.

[0026] The transverse steel reinforcement device 7 includes a bottom reinforcement plate 15, a top reinforcement plate 16, and reinforcing arms 17. Both the bottom reinforcement plate 15 and the top reinforcement plate 16 are rectangular in shape. A set of locking sleeves 18 distributed transversely at equal intervals are provided on the top of the bottom reinforcement plate 15 and the top reinforcement plate 16. The bottom reinforcement plate 15 is located below the top reinforcement plate 16. Several sets of reinforcing arms 17 are provided and installed on the outside of the bottom reinforcement plate 15 and the top reinforcement plate 16. The sets of reinforcing arms 17 are installed in a triangular shape. The transverse steel reinforcement device 7 connects and reinforces the first steel support 3 and the second rigid support 4 transversely into a whole, increasing the rigidity and stability of the entire steel support system. During installation, the bottom reinforcement plate 15 and the top reinforcement plate 16 are fitted onto the first steel support 3 and the second rigid support 4, and then fixed with bolts, thereby improving the structural strength and stability between the first steel support 3 and the second rigid support 4.

[0027] Working principle: During operation, when lifting, a set of lifting jacks 9 on the first steel support 3 and the second steel support 4 lift the steel distribution beam 10, thereby lifting the supporting bridge 6 at the top. The leveling pads 11 at the top of the steel distribution beam 10 and the bottom of the supporting bridge 6 can achieve the purpose of leveling and buffering, improving the safety of lifting. When lifting the supporting bridge 6, the jacks 12 on the supporting bridge 6 can be lifted up, so that there is space between the bottom of the jacks 12 and the modular steel pads 13. At this time, the workers can add more modular steel pads 13 to the original modular steel pads 13. Finally, the bottom drive end of the jacks 12 contacts the modular steel pads 13 below, and then the drive end of the jacks 12 drives downward, thereby lifting the supporting bridge 6.

[0028] The components of this utility model are: 1. Device body; 2. Original load-bearing platform; 3. First steel support; 4. Second steel support; 5. Support block; 6. Support bridge; 7. Lateral steel connection reinforcement device; 8. Transformer joint; 9. Lifting jack; 10. Steel distribution beam; 11. Beam bottom leveling pad; 12. Replacement jack; 13. Modular steel pad; 14. Displacement sensor; 15. Bottom reinforcement plate; 16. Top reinforcement plate; 17. Reinforcing arm; 18. Locking sleeve. All components are general standard parts or parts known to those skilled in the art, and their structure and principles can be obtained by those skilled in the art through technical manuals. As can be known from conventional experimental methods, the problem solved by this utility model is that existing bridge support and jacking equipment has poor economic efficiency, a large amount of steel support installation work, and most steel support installations require manual installation, which greatly increases the safety risks for workers. In addition, the installation and replacement time of steel supports during jacking is long, reducing efficiency and posing significant safety hazards. This utility model, through the combination of the above-mentioned components, uses half the amount of steel support material as double-set steel supports, which is more economical. The initial installation time of steel supports and the installation and replacement time of steel supports during jacking are greatly reduced, increasing efficiency and greatly reducing the safety risks for workers.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bridge underpinning jacking apparatus, characterized by: The device includes a main body (1), which includes an original load-bearing platform (2), a first steel support (3), a second steel support (4), a support block (5), a support bridge (6), and a steel transverse connection reinforcement device (7). The first steel support (3) and the second steel support (4) are each provided in a set. The first steel support (3), the second steel support (4), and the support block (5) are all installed on the top of the original load-bearing platform (2). The first steel support (3) is located on the left side of the support block (5), and the second steel support (4) is located on the right side of the support block (5). The support bridge (6) is supported on the first steel support (3) and the second steel support (4). The steel transverse connection reinforcement device (7) is provided in several sets, and several sets of the steel transverse connection reinforcement device (7) are installed between the first steel support (3) and the second steel support (4). Both the first steel support (3) and the second steel support (4) are cylindrical structures. Both the first steel support (3) and the second steel support (4) are equipped with conversion joints (8) on their tops. A lifting jack (9) is installed on the top of the conversion joint (8). A steel distribution beam (10) is installed on the top drive end of the lifting jack (9). The steel distribution beam (10) is square in shape. A beam bottom leveling pad (11) is provided between the top of the steel distribution beam (10) and the bottom of the supporting bridge (6).

2. A bridge underpinning jacking apparatus according to claim 1, characterised in that: The bottom of the supporting bridge (6) is equipped with two sets of transversely equidistant jacks (12), and a modular steel pad (13) is provided between the bottom drive end of the jack (12) and the top of the support block (5).

3. The bridge underpinning jacking apparatus according to claim 1, wherein: A displacement sensor (14) is installed between the bottom of the supporting bridge (6) and the supporting block (5), and the displacement sensor (14) is located between the two sets of jacks (12).

4. The bridge underpinning and jacking apparatus of claim 1, wherein: The transverse connection reinforcement device (7) of the steel profile includes a bottom reinforcement plate (15), a top reinforcement plate (16) and a reinforcing arm (17). The bottom reinforcement plate (15) and the top reinforcement plate (16) are both rectangular structures. The bottom reinforcement plate (15) and the top reinforcement plate (16) are provided with a set of locking sleeves (18) distributed in a transversely equidistant manner. The bottom reinforcement plate (15) is located below the top reinforcement plate (16). The reinforcing arm (17) is provided in several sets. The several sets of reinforcing arms (17) are installed on the outside of the bottom reinforcement plate (15) and the top reinforcement plate (16). The several sets of reinforcing arms (17) are installed in a triangular shape.

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