A construction device and method for large cantilever vase-shaped bridge piers utilizing a steel cage frame.

By using a folding and movable steel cage formwork and an intelligent control system, the high cost and low efficiency of traditional formwork in the construction of vase-shaped bridge piers have been solved. This has enabled the reuse of steel cage formwork and improved construction quality, thus meeting the construction needs of large cantilever beams.

CN116122158BActive Publication Date: 2026-03-06中电建路桥集团有限公司
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Patent Information

Application Number
CN202211608666.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-14
Publication Date
2026-03-06
Estimated Expiration
2042-12-14

AI Technical Summary

Technical Problem

Traditional steel reinforcement frames have problems such as time-consuming and labor-intensive manufacturing, high cost, low utilization rate, and high site requirements in the construction of vase-shaped bridge piers, making it difficult to meet the construction needs of large cantilever beams.

Method used

The system employs a foldable mobile rebar cage frame, which is assisted by a detachable rebar bending machine via a drive vertical slide rail and a drive horizontal slide rail. Combined with a high-strength chain and a detachable rebar bending machine, the rebar cage frame can be reused and precisely tied. Equipped with an intelligent control unit and power supply device, it improves construction efficiency and quality.

Benefits of technology

It enables the reuse of steel cage frames, reduces costs, improves construction efficiency and quality, reduces site requirements, and enhances the level of automation and intelligence in construction.

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Abstract

This invention relates to a construction device and method for large cantilever vase-shaped bridge piers utilizing a rebar cage jig. The construction device includes a rebar cage jig body, with different jig bodies connected by connecting plates to achieve reusability. The jig body is fixed with a driving vertical slide rail and a driving horizontal slide rail for a detachable rebar bending machine to move and bend the rebars for tying the stirrups. In this invention, the movable rebar cage jig can complete the tying of rebar cages of different diameters and shapes, avoiding the need to replace the entire jig. Reusability increases its utilization rate and reduces costs, solving problems such as repeated material consumption and insufficient installation space. Furthermore, its ingenious structure allows for on-site splicing and installation, saving time and labor in the manufacturing process, reducing site requirements, minimizing wear during handling, and improving tying quality. The intelligent, autonomous operation of the equipment saves manpower, improves accuracy, construction efficiency, and quality.
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Description

Technical Field

[0001] This invention relates to a construction device for a large cantilever vase-shaped bridge pier, and more particularly to a construction device for a large cantilever vase-shaped bridge pier utilizing a folding and movable steel cage frame. Background Technology

[0002] With the continuous development of roads and bridges in my country, the construction of large bridges has increased dramatically, bringing with it a rise in construction technical challenges. Compared to ordinary square or columnar piers, "vase piers" are used in many large cantilever beams due to their aesthetic appeal and space-saving advantages.

[0003] The complex construction design of vase-shaped bridge piers, with its numerous types of bent steel bars and the need for multiple pours, significantly increases the difficulty of the project. Traditional steel reinforcement jigs suffer from several drawbacks in addressing these technical challenges: manufacturing different jigs requires overall fabrication; installation is time-consuming, labor-intensive, and material-intensive; costs are too high; jig utilization is low; and processing sites are difficult to guarantee. To better adapt to the construction technology of vase-shaped bridge piers, this invention provides a large-arm vase-shaped bridge pier construction device and its usage method utilizing a folding and movable steel cage jig, thereby improving the shortcomings of traditional steel cage jigs and enhancing the construction quality of vase-shaped bridge piers. Summary of the Invention

[0004] This manual provides a construction device and method for using a large cantilever vase-shaped bridge pier with a folding movable steel cage frame.

[0005] This specification provides a construction device for a large cantilever vase-shaped bridge pier using a folding movable steel cage frame. The device includes a steel cage frame body, a driving vertical slide rail and a driving horizontal slide rail fixed on the frame body, a detachable steel bar bending machine that moves on the driving vertical slide rail and the driving horizontal slide rail, and different frame bodies connected by a frame body connecting plate.

[0006] The main body of the rebar cage frame is fixed with a driving vertical slide rail and a driving horizontal slide rail. A high-strength chain is located inside the driving slide rail, which assists the detachable rebar bending machine to move on the driving slide rail.

[0007] The main body connecting plate of the frame can connect two steel cage frame bodies with bolts. Different steel cage frame bodies can be spliced ​​for different vertical reinforcement forms. After the stirrups are tied, the bolts can be removed to ensure the reuse of the steel cage frame body.

[0008] The detachable rebar bending machine can perform the bending of stirrups, and the inner side of the rebar bending machine includes:

[0009] The horizontal slide rail ensures that the detachable rebar bending machine can move parallel to the drive horizontal slide rail; the vertical slide rail ensures that the detachable rebar bending machine can move vertically to the drive vertical slide rail.

[0010] The detachable rebar bending machine includes:

[0011] The rebar bending device can process rebars in situ during construction, transforming them into suitable stirrups; the power supply device provides the necessary energy for the operation of each part of the detachable rebar bending machine, including both a battery and a motor; the measuring device precisely controls the movement distance of the detachable rebar bending machine to ensure accurate stirrup binding; the processing unit, addressing the issue of different stirrup leg counts in different pier structures, can control the movement distance of the detachable rebar bending machine each time based on input data and transmit this data to the measuring device; the control unit controls the bending machine's on / off switch, as well as the drive mechanism and the rotation angle of the rotating tray.

[0012] The rebar bending device is the site for bending rebars. Internally, it includes: a bending lever, through which the rebar enters the rebar groove; during bending, the lever applies a binding force to the rebar, promoting more precise bending; a drive device, which controls the rotation of a rotating tray; a rotating tray, which fixes the rebar groove and controls its rotation; and a rebar groove, mounted on the rotating tray, which can be adjusted according to the rebar's thickness.

[0013] The beneficial effects of this invention are:

[0014] Due to the adoption of the above technical solution, the present invention has the following advantages compared with the prior art:

[0015] (1) The movable steel cage frame in this invention can complete the binding work of steel cages of different diameters and shapes, avoiding the need to replace the entire steel cage frame. The reusable steel cage frame improves its utilization rate and reduces the cost of the steel cage frame, solving problems such as serious repeated material consumption and insufficient installation space.

[0016] (2) The invention has a clever structure that enables on-site splicing and installation, making the manufacturing process time-saving and labor-saving, with lower site requirements, while reducing the wear and tear on the reinforcing bars that may be caused during transportation and improving the quality of reinforcing bar binding.

[0017] (3) This invention patent has a high degree of automation and is more inclined to digitalization, intelligence and autonomy, realizing intelligent operation of equipment with manual control, and has the advantages of saving manpower, improving accuracy, construction efficiency and quality.

[0018] (4) The present invention provides a large cantilever vase pier construction device that utilizes a folding movable steel cage frame to reduce the difficulty of manual operation and improve the construction quality of vase piers. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the folding movable steel cage frame of the present invention;

[0020] Figure 2 This is a schematic diagram of the drive slide rail of the present invention;

[0021] Figure 3 This is a structural schematic diagram of the main connecting plate of the tire frame.

[0022] Figure 4 This is a structural schematic diagram of the inner cross-section of a rebar bending machine;

[0023] Figure 5 This is a schematic diagram of the internal structure of a rebar bending machine;

[0024] Figure 6 This is a schematic diagram of the working principle of a rebar bending device.

[0025] In the picture:

[0026] 1-Rebar cage frame main body; 2-Drive vertical slide rail; 3-Drive horizontal slide rail; 4-Demountable rebar bending machine; 5-Frame main body connecting plate; 201-High-strength chain; 501-Bolt; 401-Horizontal slide rail; 402-Vertical slide rail; 403-Rebar bending device; 404-Power supply device; 405-Measuring device; 406-Processing unit; 407-Control unit; 408-Bending lever; 409-Drive device; 410-Rotating tray; 411-Rebar trough. Specific implementation methods

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0028] Referring to the figures, the present invention provides a technical solution:

[0029] like Figure 1 As shown in the figure, this specification provides a construction device and method for a large cantilever vase-shaped bridge pier using a folding movable rebar cage frame. It includes a rebar cage frame body 1, with a driving vertical slide rail 2 and a driving horizontal slide rail 3 fixed on the frame body. A detachable rebar bending machine 4 moves on the driving vertical slide rail 2 and the driving horizontal slide rail 3. Different frame bodies are connected by a frame body connecting plate 5.

[0030] like Figure 2 As shown, the main body 1 of the rebar cage is fixed with a driving vertical slide rail 2 and a driving horizontal slide rail 3. A high-strength chain 201 is present inside the driving slide rail. The high-strength chain 201 assists the detachable rebar bending machine 4 to move on the driving slide rail.

[0031] like Figure 3 As shown, the main body connecting plate 5 of the frame can connect two steel cage frame bodies 1 by bolts 501. Different steel cage frame bodies can be spliced ​​for different types of vertical reinforcement. After the stirrups are tied, the bolts 501 can be removed to ensure the reuse of the steel cage frame body 1.

[0032] like Figure 4 As shown, the detachable rebar bending machine 4 can complete the bending of stirrups. The inner side of the rebar bending machine includes:

[0033] The horizontal slide rail 401 ensures that the detachable rebar bending machine 4 can move parallel to the drive horizontal slide rail 3.

[0034] The vertical slide rail 402 ensures that the detachable rebar bending machine 4 can move vertically on the drive vertical slide rail 2.

[0035] like Figure 5 As shown, the detachable rebar bending machine 4 includes the following internal components:

[0036] The rebar bending device 403 can process rebars in situ during construction, turning them into suitable stirrups.

[0037] The power supply device 404 provides the energy required for operation to each part of the detachable steel bar bending machine 4, including a battery and an engine.

[0038] The measuring device 405 precisely controls the moving distance of the detachable rebar bending machine 4 to ensure the accurate binding of the stirrups;

[0039] The processing unit 406, in response to the problem of different numbers of stirrups in different piers of the vase bridge, can control the moving distance of the detachable rebar bending machine each time according to the input data and transmit it to the measuring device;

[0040] The control unit 407 controls the switch of the bending machine 4, and simultaneously controls the drive of the drive device 409 and the rotation angle of the rotating tray 410.

[0041] like Figure 6 As shown, the rebar bending device 403 is the location for bending rebars, and its internal components include:

[0042] The bending lever 408 allows the reinforcing bar to enter the reinforcing bar groove 411 from the bottom of the bending lever. When bending the reinforcing bar, the bending lever can exert a binding force on the reinforcing bar by utilizing the lever principle, which promotes more precise bending of the reinforcing bar.

[0043] Drive unit 409, which can control the rotation of the rotating tray 410 on it;

[0044] The rotating tray 410 serves to fix the rebar groove 411 and control the rotation of the rebar groove 411.

[0045] The rebar channel 411 is mounted on the rotating tray 410, and the rebar channel can be adjusted according to the thickness of the rebar.

[0046] Example: During the reinforcement binding of the vase-shaped bridge pier, the main body 1 of the reinforcement cage is installed close to the vertical reinforcement according to the distribution pattern of the vertical reinforcement, using bolts 501, to prepare for the binding of different limb stirrups within the vase-shaped bridge pier. After the main body 1 of the reinforcement cage is installed, the reinforcement binding parameters are input into the processing unit 406, and the horizontal and vertical coordinates of the detachable reinforcement bending machine 4 are determined. The machine can then move freely on the main body 1 of the reinforcement cage. At this time, the control unit 407 determines the moving distance of the detachable reinforcement bending machine 4 for each binding; the measuring device 405 ensures that the detachable reinforcement bending machine 4 moves to the precise position.

[0047] After the device is installed, the reinforcing bar is fed into the reinforcing bar groove 411 through the lower part of the bending lever 408. The control unit 407 controls the movement range of the drive device 409 and the rotating tray 410 to successfully complete the binding of the stirrups.

[0048] Since the concrete needs to be poured on-site, the concrete was also designed accordingly to ensure the concrete's rapid setting time, strength, and toughness. A new C50 fiber concrete mix design was proposed to assist in the construction.

[0049] The cotton and linen fibers used in this solution are taken from old cotton and linen clothing collected through waste recycling. The fibers are cut into strips with a length of 8mm and a single filament diameter of 0.4mm.

[0050] The mass proportions of the concrete were determined as follows: water 31, cement 96, sand 134, crushed stone 229, admixture 1.2, and cementitious materials 96; additionally, fiber volume content was added at 1.5%.

[0051] The foregoing has provided a detailed description of a construction device and method for a large cantilever vase-shaped bridge pier utilizing a steel cage frame, as provided in the embodiments of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and its core ideas; furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

[0052] Certain terms are used in the specification and claims to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The terms "comprising" and "including" used throughout the specification and claims are open-ended and should be interpreted as "comprising / including but not limited to". "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error. The following descriptions in the specification are preferred embodiments for carrying out this application; however, these descriptions are for the purpose of illustrating the general principles of this application and are not intended to limit the scope of this application. The scope of protection of this application shall be determined by the appended claims.

[0053] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0054] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0055] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A device for construction of a large cantilevered vase pier using a reinforcement cage jig, characterized in that, The construction device comprises a reinforcement cage jig main body and a detachable reinforcement bending machine. The reinforcement cage jig main body is provided with a driving vertical slide rail and a driving horizontal slide rail, and the driving vertical slide rail and the driving horizontal slide rail are both provided with chains.

2. The construction apparatus of claim 1, wherein The device further comprises a jig main body connecting plate which connects the two reinforcement cage jig main bodies through bolts.

3. The construction apparatus of claim 1, wherein The chains are high-strength chains.

4. The construction apparatus of claim 1, wherein The detachable reinforcement bending machine comprises a reinforcement bending device, an energy supply device, a processing unit, a control unit, a control switch, a driving device and a rotating tray. The processing unit, the control unit, the control switch and the driving device are connected with the reinforcement bending device, and the rotating tray is arranged in the reinforcement bending device.

5. The construction apparatus of claim 4, wherein The energy supply device is a storage battery or an engine.

6. The construction apparatus of claim 5, wherein The reinforcement bending device comprises a bending lever, and the reinforcement is fed into a reinforcement groove through the lower part of the bending lever.

7. The construction apparatus of claim 6, wherein The reinforcement bending device comprises a driving device which can control the rotation of the rotating tray.

8. The construction device according to claim 7, wherein the rotating tray of the reinforcement bending device serves to fix the reinforcement groove and control the rotation of the reinforcement groove.

9. The construction apparatus of claim 8, wherein The reinforcement groove of the reinforcement bending device is arranged on the rotating tray and can be adjusted according to the thickness of the reinforcement.

10. A method of using the construction apparatus of any one of claims 1-9, characterized by, Specifically, the method comprises the following steps: S1) When reinforcing the vase bridge pier, the reinforcement cage jig main body is tightly attached to the vertical reinforcement through bolts according to the distribution of the vertical reinforcement, so as to prepare for the binding work of the different limb hoop reinforcement in the vase bridge pier; S2) After the installation of the reinforcement cage jig main body, the reinforcement binding parameters are input into the processing unit, and the horizontal and vertical coordinates of the detachable reinforcement bending machine are determined, so that the detachable reinforcement bending machine can be moved on the reinforcement cage jig main body at will, and the control unit determines the moving distance of the detachable reinforcement bending machine each time; the measuring device ensures that the detachable reinforcement bending machine moves to the accurate position; S3) After the installation of the device, the reinforcement is fed into the reinforcement groove through the lower part of the bending lever, the control unit controls the moving range of the driving device and the rotating tray, and the binding work of the hoop reinforcement is completed.

Citation Information

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