An automated walking construction auxiliary platform for steel-concrete composite beam cable-stayed bridges

Abstract

This utility model discloses an automatic walking construction auxiliary platform for steel-concrete composite girder cable-stayed bridges, relating to the technical field of steel-concrete composite girder cable-stayed bridges. The platform includes a track, multiple limiting plates, a working platform, a walking assembly, and an operating cabinet. The track is longitudinally arranged above the lower horizontal joint of the steel beam. By placing the working platform above the track and supporting it on the walking assembly, workers can disassemble the anchor bolts and connectors at the top of the beam without slowly lowering them to the ground using ropes. Instead, they can directly place the disassembled anchor bolts and connectors onto the working platform above the track. The walking assembly drives the working platform forward or backward along the track, quickly transporting the anchor bolts and connectors from the area below the steel beam and precast slab. The entire transportation process requires no manual assistance at the bottom of the beam, effectively solving the problems of low construction efficiency and the risk of falling objects from heights.

Description

Technical Field

[0001] This utility model relates to the field of steel-concrete composite beam cable-stayed bridge technology, and in particular to an automatic walking construction auxiliary platform for steel-concrete composite beam cable-stayed bridges. Background Technology

[0002] Steel-concrete composite beams are a novel structural form that integrates shear connectors between steel beams and concrete flanges, allowing the two materials to work together to bear loads. They combine the tensile strength of steel with the compressive strength of concrete and have been widely used in the construction of long-span cable-stayed bridges. During the construction of steel-concrete composite beam cable-stayed bridges, steel beam segments and precast concrete slabs are often assembled using bridge cranes via cantilever operations. Due to construction limitations, the crane base must be temporarily anchored to the installed steel beam segments and precast slabs using anchor bolts and other connectors during hoisting operations. These anchorage points are all located below the steel beams and precast slabs.

[0003] After the steel beams and precast slabs are hoisted into place, workers need to go to the corresponding locations to dismantle the anchoring points. However, because the anchoring points are located below the steel beams and precast slabs, it is difficult for workers to reach these locations for construction work, posing significant construction difficulties and safety risks. Currently, the common practice in actual construction is for workers to dismantle the anchor bolts and connectors on top of the beam and then slowly lower them to the ground using ropes. This method is not only inefficient and labor-intensive, but the bolts and connectors are also prone to swaying during rope hoisting, posing a risk of falling objects from height and seriously threatening ground workers and equipment. This severely impacts both construction progress and operational safety. Utility Model Content

[0004] This invention provides an automated walking construction auxiliary platform for steel-concrete composite beam cable-stayed bridges, which can solve the problems of low construction efficiency and risk of falling objects from heights mentioned in the background art.

[0005] An automated walking construction auxiliary platform for a steel-concrete composite girder cable-stayed bridge includes a track, multiple limiting plates, a working platform, a walking assembly, and an operating cabinet. The track is longitudinally arranged above the lower horizontal bracing of the steel beam. The multiple limiting plates are fixedly connected to the lower horizontal bracing and press against the track to limit its lateral displacement. The working platform is located above the track and is used to carry workers and / or construction materials. The walking assembly is installed at the bottom of the working platform and is used to drive the working platform to move. The operating cabinet is located on the working platform and is electrically connected to the walking assembly to control the working platform to move forward or backward along the track.

[0006] The automatic walking construction auxiliary platform for steel-concrete composite beam cable-stayed bridge provided by this utility model has the following beneficial effects compared with the prior art: This automated walking construction auxiliary platform for steel-concrete composite girder cable-stayed bridge provides a stable and reliable walking path for the work platform by setting the track longitudinally along the lower horizontal joint of the steel beam. By placing the work platform above the track and supporting it on the walking component, workers can directly place the disassembled anchor bolts and connectors from the top of the beam down onto the work platform above the track without having to slowly lower them to the ground using ropes. The walking component drives the work platform forward or backward along the track, quickly transporting the anchor bolts and connectors from the area under the steel beam and precast slab. The entire transportation process does not require manual assistance at the bottom of the beam, avoiding the risk of the bolts and connectors swinging and falling and injuring people during rope hoisting. It also eliminates cumbersome procedures such as slow lowering and ground receiving, significantly reducing the auxiliary time for single-point anchor removal operations and effectively solving the problems of low construction efficiency and the risk of falling objects from heights.

[0007] Furthermore, the track is a 32a I-beam, and the track is positioned above the lower horizontal bracing.

[0008] Furthermore, the limiting pressure plate includes a first limiting pressure plate and a second limiting pressure plate with the same structure. Both the first limiting pressure plate and the second limiting pressure plate are welded to the lower flat joint. The first limiting pressure plate and the second limiting pressure plate are respectively arranged on both sides of the track.

[0009] Furthermore, the first limiting pressure plate includes a plate body, the bottom of which is provided with a limiting groove, and the plate body is welded to the lower flat joint.

[0010] Furthermore, the first limiting pressure plate and the second limiting pressure plate are 10mm steel plates.

[0011] Furthermore, the work platform includes a base plate and a protective frame, the protective frame being fixed to the base plate, and the bottom of the base plate being connected to the walking assembly.

[0012] Furthermore, the base plate is made of 40×40 square steel, and the protective frame is made of I-beams of 20mm diameter.

[0013] Furthermore, the walking assembly includes multiple walking wheels, all of which are rolled on the upper flange surface of the track, and at least one of the walking wheels is provided with a driving component.

[0014] Furthermore, the multiple walking wheels are arranged in a rectangular pattern at the bottom of the work platform.

[0015] Furthermore, the control cabinet is equipped with multiple control buttons and has a wireless remote control function. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an automatic walking construction auxiliary platform for a steel-concrete composite beam cable-stayed bridge according to an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the middle limiting pressure plate; Figure 3 This is a schematic diagram of the installation of an automatic walking construction auxiliary platform for a steel-concrete composite beam cable-stayed bridge according to an embodiment of the present invention; Figure 4 This is a top view of the installation of an automatic walking construction auxiliary platform for a steel-concrete composite beam cable-stayed bridge according to an embodiment of this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Track; 2. Limiting plate; 3. Working platform; 4. Walking assembly; 5. Control cabinet; 6. Lower horizontal coupling; 21. First limiting plate; 22. Second limiting plate; 211. Plate body; 212. Limiting slot; 31. Base plate; 32. Protective frame; 41. Walking wheel; 42. Drive component. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, specific embodiments of this application are described clearly and completely below with reference to the accompanying drawings. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," "comprise," etc., in the specification, claims, and accompanying drawings of this application are open-ended terms, indicating that a method comprises one or more steps, or an apparatus comprises one or more elements, but do not exclude the inclusion of other steps or elements. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or primary / secondary relationship. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] In this application, the term "and / or" 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, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0023] like Figure 1-4 As shown, an automatic walking construction auxiliary platform for a steel-concrete composite beam cable-stayed bridge includes a track 1, multiple limiting pressure plates 2, a working platform 3, a walking assembly 4, and an operating cabinet 5. The track 1 is longitudinally arranged above the lower horizontal bracing 6 of the steel beam. The multiple limiting pressure plates 2 are fixedly connected to the lower horizontal bracing 6 and press against the track 1 to limit the lateral displacement of the track 1. The working platform 3 is arranged above the track 1 and is used to carry workers and / or construction materials. The walking assembly 4 is installed at the bottom of the working platform 3 and is used to drive the working platform 3 to move. The operating cabinet 5 is arranged on the working platform 3 and is electrically connected to the walking assembly 4 to control the working platform 3 to move forward or backward along the track 1.

[0024] In this embodiment, by setting the track 1 longitudinally along the lower horizontal connection 6 of the steel beam, a stable and reliable walking path is provided for the working platform 3. By setting the working platform 3 above the track 1 and supporting it on the walking component 4, after the workers disassemble the anchor bolts and connectors at the top of the beam, they do not need to use ropes to slowly lower them to the ground from a height. Instead, they can directly place the disassembled anchor bolts and connectors down onto the working platform 3 above the track 1. By driving the working platform 3 forward or backward along the track 1 through the walking component 4, the anchor bolts and connectors can be quickly transported out from the area under the steel beam and precast slab. The entire transportation process does not require manual assistance at the bottom of the beam, avoiding the risk of the bolts and connectors swinging and falling and injuring people during the rope hoisting process. At the same time, it eliminates the cumbersome procedures of slow lowering and ground receiving, greatly reducing the auxiliary time for single-point anchor removal operations and effectively solving the problems of low construction efficiency and the risk of falling objects from heights.

[0025] like Figure 1 and Figure 2 As shown, track 1 is an I-beam of 32a, and track 1 is placed above the lower horizontal tie 6.

[0026] In this embodiment, the I-beam has a reasonable flange width and height, providing a stable rolling working surface for the walking assembly 4, ensuring the stability and load-bearing capacity of the work platform 3 during movement. At the same time, the track 1 is only placed above the lower horizontal connector 6 and is not welded to the lower horizontal connector 6, forming a non-fixed connection between the track 1 and the lower horizontal connector 6. After the construction auxiliary platform is used up, the track 1 can be removed as a whole by removing the limiting pressure plate 2, which facilitates the repeated reuse of the track 1 between each construction segment. There is no need to re-lay the track 1 and wait for the welding to cool down during the construction of each steel beam segment, effectively shortening the construction preparation cycle. At the same time, since the track 1 is not welded to the lower horizontal connector 6, the thermal deformation caused by the high temperature of welding is avoided, ensuring the straightness and smoothness of the track 1 along its entire length, thereby making the running wheel 41 run more smoothly on the upper flange surface of the track 1.

[0027] like Figure 1 and Figure 2 As shown, the limiting pressure plate 2 includes a first limiting pressure plate 21 and a second limiting pressure plate 22 with the same structure. Both the first limiting pressure plate 21 and the second limiting pressure plate 22 are welded to the lower flat joint 6. The first limiting pressure plate 21 and the second limiting pressure plate 22 are respectively set on both sides of the track 1.

[0028] In this embodiment, the first limiting plate 21 and the second limiting plate 22 clamp and constrain the track 1 from both sides, effectively limiting the lateral displacement of the track 1 in the horizontal direction. This prevents the lateral force generated by the traveling wheel 41 during operation from pushing the track 1 to deviate or overturn, ensuring that the track 1 always remains in the designed position, and providing a reliable guarantee for the stable operation of the work platform 3. At the same time, the limiting plate 2 is welded and fixed to the lower horizontal connector 6, with high connection strength, which can withstand the repeated lateral impact loads transmitted through the track 1 during the movement of the work platform 3, avoiding loosening or displacement of the limiting plate 2 during long-term use, thereby ensuring the safety and reliability of the construction auxiliary platform for long-term use.

[0029] like Figure 1 and Figure 2 As shown, the first limiting pressure plate 21 includes a plate body 211, a limiting groove 212 is opened at the bottom of the plate body 211, and the plate body 211 is welded to the lower flat joint 6.

[0030] In this embodiment, the limiting slot 212 allows the plate 211 to be directly engaged with the lower flange and web of the track 1, increasing the contact area between the limiting pressure plate 2 and the track 1, reducing the degree of freedom of the track 1, and effectively preventing the track 1 from shifting or tilting in the horizontal and vertical directions. At the same time, the limiting slot 212 is adapted to the contour of the track 1. During installation, the first limiting pressure plate 21 and the second limiting pressure plate 22 are simply fastened to both sides of the track 1 through the limiting slot 212, and then welded to the lower flat connector 6 to complete the positioning. There is no need to repeatedly adjust the position of the track 1, which simplifies the on-site installation process and improves the track laying accuracy and construction efficiency.

[0031] The first limiting pressure plate 21 and the second limiting pressure plate 22 are 10mm steel plates.

[0032] like Figure 1 and Figure 2 As shown, the work platform 3 includes a base plate 31 and a protective frame 32. The protective frame 32 is fixed on the base plate 31, and the bottom of the base plate 31 is connected to the walking assembly 4.

[0033] In this embodiment, the base plate 31 provides a flat and stable bearing surface for workers and construction materials. The protective frame 32 is fixed to the base plate 31, forming a protective structure around or at the edge of the work platform 3. This effectively protects workers standing on the base plate 31 from falling, and also prevents temporary anchor bolts, connectors, and other construction materials placed on the base plate 31 from slipping off the platform edge, significantly improving the overall safety of the beam bottom demolition operation. When the walking component 4 drives the work platform 3 to move, the base plate 31 and the protective frame 32 move horizontally together. Workers can remove the bolts and connectors at the anchor points without repeatedly climbing or relying on ropes to hoist tools, and place them directly on the base plate 31 for transport with the platform. This reduces the secondary transfer of materials and further improves the construction efficiency of the anchor point demolition operation.

[0034] The base plate 31 is made of 40×40 square steel, and the protective frame 32 is made of I-beam 20a steel.

[0035] like Figure 1 and Figure 2 As shown, the walking assembly 4 includes multiple walking wheels 41, all of which are rolled on the upper flange surface of the track 1, and at least one walking wheel 41 is provided with a drive member 42.

[0036] In this embodiment, multiple traveling wheels 41 jointly support the work platform 3, the workers on it, and the construction materials, so that the weight of the work platform 3 is evenly transferred to the track 1 through the traveling wheels 41, avoiding the problems of excessive local pressure and stress concentration caused by single or double wheel bearing. By providing a driving component 42 on at least one traveling wheel 41, the driving component 42 directly provides driving force to the traveling wheel 41, so that the work platform 3 can achieve automated movement without relying on external traction equipment. The workers can control the work platform 3 to move forward or backward along the track 1 through the control cabinet 5, which simplifies the on-site operation process and improves construction efficiency.

[0037] Specifically, the drive unit 42 can be a geared motor or a hub motor, etc.

[0038] Among them, multiple walking wheels 41 are arranged in a rectangular shape at the bottom of the working platform 3.

[0039] like Figure 1 and Figure 2 As shown, the control cabinet 5 is equipped with multiple control buttons and has a wireless remote control function.

[0040] In this embodiment, multiple control buttons correspond to different operation commands such as forward, backward, and emergency stop, which improves construction efficiency; the control cabinet 5 has a wireless remote control function, so the operator can remotely control the movement and stopping of the work platform 3 without being on the work platform 3.

[0041] Working principle: The track 1 is laid longitudinally above the lower horizontal bracing 6 of the steel beam. Multiple limiting pressure plates 2 are respectively set on both sides of the track 1 and welded to the lower horizontal bracing 6. The limiting pressure plates 2 press on the track 1 to form a horizontal clamping constraint on the track 1, thereby limiting the lateral displacement of the track 1 and providing a stable walking path for the entire platform. Then, the work platform 3 with the walking component 4 is hoisted onto the track 1 as a whole, so that multiple walking wheels 41 are rolled on the upper flange surface of the track 1. During operation, the drive component 42 is controlled by the control cabinet 5 to drive the walking wheels 41 to rotate. The walking wheels 41 roll on the upper flange surface of the track 1, driving the work platform 3 to move forward or backward along the track 1 to the designated position below the steel beam and precast slab. Workers disassemble the anchor bolts and connectors on the top of the beam. Since the base plate 31 of the work platform 3 is located below the anchoring point, the disassembled anchor bolts and connectors do not need to be hoisted a long distance from the top of the beam to the ground. Instead, workers guide them vertically onto the base plate 31 of the work platform 3 by manually supporting them or using conventional auxiliary tools such as short ropes. The base plate 31 provides a bearing surface for the anchor bolts and connectors, and the protective frame 32 surrounds the base plate 31 to prevent the anchor bolts and connectors from slipping off the edge of the work platform 3. After the anchor bolts and connectors are placed, the workers control the walking assembly 4 through the control cabinet 5 to move the work platform 3 along the track 1, thus horizontally transporting the anchor bolts and connectors from the area under the steel beam and precast slab. Throughout the process, the work platform 3 only serves as a material receiving and transfer carrier, eliminating the need for workers to stand and operate under the beam, thereby achieving safe and efficient operation of the anchor bolts and connectors from disassembly to transfer.

[0042] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. An automated walking construction auxiliary platform for a steel-concrete composite beam cable-stayed bridge, characterized in that, include: Track (1), the track (1) is longitudinally arranged above the lower horizontal bracing (6) of the steel beam; Multiple limiting pressure plates (2) are fixedly connected to the lower flat joint (6). The limiting pressure plates (2) are pressed on the track (1) to limit the lateral displacement of the track (1). The work platform (3) is set above the track (1) and is used to carry workers and / or construction materials; A walking component (4) is installed at the bottom of the work platform (3) and is used to drive the work platform (3) to move. The control cabinet (5) is set on the work platform (3) and is electrically connected to the walking component (4) to control the work platform (3) to move forward or backward along the track (1).

2. The automatic walking construction auxiliary platform for steel-concrete composite beam cable-stayed bridge as described in claim 1, characterized in that, The track (1) is an I-beam of 32a and is placed above the lower horizontal bracing (6).

3. The automatic walking construction auxiliary platform for steel-concrete composite beam cable-stayed bridges as described in claim 1, characterized in that, The limiting pressure plate (2) includes a first limiting pressure plate (21) and a second limiting pressure plate (22) with the same structure. The first limiting pressure plate (21) and the second limiting pressure plate (22) are both welded to the lower flat joint (6). The first limiting pressure plate (21) and the second limiting pressure plate (22) are respectively set on both sides of the track (1).

4. The automatic walking construction auxiliary platform for steel-concrete composite beam cable-stayed bridge as described in claim 3, characterized in that, The first limiting pressure plate (21) includes a plate body (211), a limiting groove (212) is opened at the bottom of the plate body (211), and the plate body (211) is welded to the lower flat joint (6).

5. The automatic walking construction auxiliary platform for steel-concrete composite beam cable-stayed bridges as described in claim 3, characterized in that, The first limiting pressure plate (21) and the second limiting pressure plate (22) are 10mm steel plates.

6. The automatic walking construction auxiliary platform for steel-concrete composite beam cable-stayed bridge as described in claim 1, characterized in that, The work platform (3) includes a base plate (31) and a protective frame (32). The protective frame (32) is fixed on the base plate (31), and the bottom of the base plate (31) is connected to the walking component (4).

7. The automatic walking construction auxiliary platform for steel-concrete composite beam cable-stayed bridge as described in claim 6, characterized in that, The base plate (31) is made of 40×40 square steel, and the protective frame (32) is made of I-beam steel.

8. The automatic walking construction auxiliary platform for steel-concrete composite beam cable-stayed bridge as described in claim 1, characterized in that, The walking assembly (4) includes multiple walking wheels (41), all of which are rolled on the upper flange surface of the track (1), and at least one of the walking wheels (41) is provided with a drive member (42).

9. The automatic walking construction auxiliary platform for steel-concrete composite beam cable-stayed bridge as described in claim 8, characterized in that, Multiple of the aforementioned walking wheels (41) are arranged in a rectangular pattern at the bottom of the work platform (3).

10. The automatic walking construction auxiliary platform for steel-concrete composite beam cable-stayed bridge as described in claim 1, characterized in that, The control cabinet (5) is equipped with multiple control buttons and has a wireless remote control function.

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