Segmental construction cast-in-place continuous beam web operation workbench

Abstract

The utility model relates to bridge pouring tool technical field, concretely discloses a section construction cast-in-situ continuous beam web operation workstation, its including workstation main part, workstation main part includes the mounting frame that sets up along the web height direction interval, the mounting frame includes a plurality of along the web length direction interval setting up submounting frame, is equipped with the support platform between adjacent submounting frame, and the both sides of submounting frame are equipped with fixed mechanism, and fixed mechanism is used for with the web cooperation, stabilizes mounting frame. Can prevent the construction personnel on the platform construction, platform shakes, overturns.

Description

Technical Field

[0001] This utility model relates to the field of bridge casting tools, specifically to a workbench for the construction of the web of a segmental continuous beam. Background Technology

[0002] In the construction of cantilever continuous beams, the web height is typically greater than the safe operating limit of 2 meters. Therefore, tasks such as grinding and repairing the web formwork are classified as high-altitude work, posing significant safety risks. Currently, most widely used hanging basket and bridge-building machine systems do not integrate a dedicated web working platform that can adaptively adjust with each segment. Consequently, on-site personnel often have to resort to temporary measures such as installing tie rods and laying timber to erect non-standard, makeshift operating platforms.

[0003] These temporary platforms have several problems. First, their construction and dismantling are cumbersome and inefficient, heavily reliant on manual labor, and make it inconvenient for workers to get on and off the platform. Second, due to the lack of standardized design and reliable protection, the overall stability, load-bearing safety, and protective integrity of the platform are difficult to guarantee, posing a risk of falling from heights. Utility Model Content

[0004] This utility model provides a workbench for segmental construction of cast-in-place continuous beam web, which can overcome some or all of the defects of the prior art.

[0005] According to the present invention, a workbench for segmental construction of cast-in-place continuous beam web plate includes: a workbench body, the workbench body including mounting frames spaced apart along the height direction of the web plate; the mounting frames including multiple sub-mounting frames spaced apart along the length direction of the web plate, and a support platform provided between adjacent sub-mounting frames; and fixing mechanisms provided on both sides of the sub-mounting frames, the fixing mechanisms being used to cooperate with the web plate to stabilize the mounting frames.

[0006] With this invention, before grinding and repairing the web formwork, construction workers first use a crane to lift the sub-installation frame from above the bridge formwork and place it between the web of the inner and outer formwork. Workers then rotate the threaded post on the side wall of the hollow tube to extend the post out of the sleeve and press the circular plate against the web, thus fixing the sub-installation frame. Next, workers use a crane to lift the next sub-installation frame onto the previous one, aligning the column on the lower hollow tube with the upper hollow tube and inserting it into the upper hollow tube. Then, a pin is passed through the third and second through holes to connect the upper and lower sub-installation frames. After connection, the above operation of rotating the threaded post is repeated to fix the sub-installation frame. Sub-installation frames are then stacked sequentially according to the web height. After all sub-installation frames are installed, workers climb from one side of the sub-installation frame, using the first, second, and third climbing poles to reach the support platform for grinding and repairing the web formwork. Compared with existing technologies, this workbench forms a stable system with tight anchoring to the template and rigid connection between the frame sections by using threaded columns to tighten the web plate and pins to connect the sub-installation frame. This prevents the platform from shaking or overturning when construction workers are working on it. At the same time, the first, second, and third climbing poles make it easy for construction workers to climb onto the support platform from both sides of the sub-installation frame and also make it easy to get off the support platform. Furthermore, the workbench can be quickly assembled and disassembled through simple hoisting, splicing, and pin fixing, and can be moved forward synchronously with the hanging basket, and can be reused in various sections, which greatly reduces the repetitive labor and auxiliary work time of construction workers.

[0007] Preferably, the sub-mounting frame includes two parallel hollow tubes, and the upper sidewalls of the two hollow tubes are provided with support rods for connecting the two hollow tubes and the supporting platform; there are connecting rods that are cross-arranged between two adjacent sub-mounting frames and are used to connect the two adjacent hollow tubes.

[0008] With this invention, the two ends of the connecting rod are bolted to the hollow tube. When construction workers are performing high-altitude work, the connecting rod will protect them and prevent them from falling from the support platform.

[0009] Preferably, a first climbing rod is provided below the support rod for connecting the two hollow tubes, two second climbing rods are provided below the first climbing rod and arranged parallel to the hollow tubes, and a third climbing rod is provided between the second climbing rods and the hollow tubes for connecting the second climbing rods and the hollow tubes.

[0010] This invention connects the support rod, hollow tube, first climbing rod, second climbing rod, and third climbing rod by welding to form a climbing frame, which facilitates construction workers to climb onto the support platform and descend from the support platform.

[0011] Preferably, the fixing mechanism includes a sleeve disposed on the side wall of the hollow tube, and the inner side wall of the sleeve is provided with internal threads; the sleeve is provided with an extrusion member extending out of the sleeve, and the extrusion member includes a threaded post that mates with the thread of the sleeve; a circular plate is provided at the end of the threaded post away from the sleeve.

[0012] This invention allows for the placement of sleepers between the web and the circular plate when construction workers rotate the threaded column to push the circular plate to compress the web, thus preventing the circular plate from compressing and damaging the web.

[0013] Preferably, the threaded post has a first through hole penetrating the threaded post near the side wall of the circular plate.

[0014] With this invention, the length ratio of the sleeve to the threaded column is 2:3. The first through hole is set at the end of the threaded column that extends out of the sleeve. The construction worker can rotate the threaded column by passing the threaded steel or iron rod through the first through hole and then pushing the threaded steel or iron rod. This makes it convenient for the construction worker to rotate the threaded column.

[0015] Preferably, a connector is provided above the hollow tube to connect with the hollow tube. The connector includes a base plate, and a column is provided at one end of the base plate away from the hollow tube. The column is used to extend into the hollow tube on the adjacent mounting bracket. A second through hole is provided on the side wall of the column. A third through hole is provided on the lower side wall of the hollow tube, corresponding to the second through hole.

[0016] With this utility model, construction workers can connect the upper and lower sub-mounting brackets by passing a pin through the third and second through holes, making it convenient for construction workers to connect the two sub-mounting brackets; the base plate is welded to the hollow tube. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main body of the workbench in Example 1.

[0018] Figure 2 This is a schematic diagram of the mounting bracket in Example 1.

[0019] Figure 3 This is a schematic diagram of the sub-mounting bracket in Example 1.

[0020] Figure 4 This is an exploded view of the sub-mounting bracket in Example 1.

[0021] Figure 5 This is a schematic diagram of the extrusion component in Example 1.

[0022] Figure 6 This is a schematic diagram of the connector in Example 1. Detailed Implementation

[0023] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.

[0024] Example 1 like Figure 1-6 As shown, this embodiment provides a workbench for segmental construction of cast-in-place continuous beam web, which includes a workbench body 100. The workbench body 100 includes mounting frames 120 spaced apart along the height direction of the web. The mounting frames 120 include multiple sub-mounting frames 220 spaced apart along the length direction of the web. A support platform 240 is provided between adjacent sub-mounting frames 220. Fixing mechanisms 110 are provided on both sides of the sub-mounting frames 220. The fixing mechanisms 110 are used to cooperate with the web to stabilize the mounting frames 120.

[0025] In this embodiment, before grinding and repairing the web formwork, the construction workers first use a crane to lift the sub-installation frame 220 from above the bridge formwork and place it between the web of the inner and outer formwork. The workers then rotate the threaded post 430 on the side wall of the hollow tube 310, causing the threaded post 430 to extend from the sleeve 330 and press the circular plate 410 against the web, thus fixing the sub-installation frame 220 in place. Afterwards, the workers use the crane again to lift the next sub-installation frame 220 onto the previous one, aligning the column 510 on the lower hollow tube 310 with the upper hollow tube 310. 10. Insert the upper hollow tube 310, and then connect the upper and lower sub-mounting brackets 220 by passing the pin through the third through hole 360 ​​and the second through hole 520. After the connection is completed, repeat the above operation of rotating the threaded column 430 to fix the sub-mounting bracket 220. Then, according to the height of the web plate, stack the sub-mounting brackets 220 in sequence. After all the sub-mounting brackets 220 are installed, the construction workers climb from one side of the sub-mounting bracket 220. When climbing, they climb to the support platform 240 through the first climbing pole 380, the second climbing pole 350 and the third climbing pole 340 to grind and repair the web plate template. Compared with existing technologies, this workbench forms a stable system with tight anchoring to the template and rigid connection between the frame sections by using threaded columns 430 to tighten the web plate and pins to connect the sub-mounting frame 220. This prevents the platform from shaking or overturning when construction workers are working on it. At the same time, the first climbing pole 380, the second climbing pole 350, and the third climbing pole 340 make it easy for construction workers to climb from both sides of the sub-mounting frame 220 to the support platform 240 and also to climb down from the support platform 240. Furthermore, the workbench can be quickly assembled and disassembled through simple hoisting, splicing, and pin fixing, and can be moved forward synchronously with the hanging basket, making it reusable in various sections, thus significantly reducing repetitive labor and auxiliary work time for construction workers.

[0026] In this embodiment, the sub-mounting bracket 220 includes two parallel hollow tubes 310. The upper sidewall of the two hollow tubes 310 is provided with a support rod 390 for connecting the two hollow tubes 310 and the supporting platform 240. A connecting rod 230 is provided between two adjacent sub-mounting brackets 220 and is used to connect the two adjacent hollow tubes 310.

[0027] In this embodiment, the two ends of the connecting rod 230 are connected to the hollow tube 310 by bolts. When construction workers are carrying out high-altitude construction, the connecting rod 230 will protect the construction workers and prevent them from falling from the support platform 240.

[0028] In this embodiment, a first climbing rod 380 for connecting two hollow tubes 310 is provided below the support rod 390, two second climbing rods 350 arranged parallel to the hollow tubes 310 are provided below the first climbing rod 380, and a third climbing rod 340 for connecting the second climbing rods 350 and the hollow tubes 310 is provided between the second climbing rods 350 and the hollow tubes 310.

[0029] In this embodiment, the support rod 390, hollow tube 310, first climbing rod 380, second climbing rod 350 and third climbing rod 340 are connected by welding to form a climbing frame, which facilitates construction personnel to climb onto the support platform 240 and descend from the support platform 240.

[0030] In this embodiment, the fixing mechanism 110 includes a sleeve 330 disposed on the side wall of the hollow tube 310, and the inner side wall of the sleeve 330 is provided with an internal thread; the sleeve 330 is provided with an extrusion member 320 extending out of the sleeve 330, and the extrusion member 320 includes a threaded post 430 that is threadedly engaged with the sleeve 330; a circular plate 410 is provided at the end of the threaded post 430 away from the sleeve 330.

[0031] In this embodiment, when the construction worker rotates the threaded column 430 to push the circular plate 410 to squeeze the web, a sleeper is placed between the web and the circular plate 410 to prevent the circular plate 410 from squeezing and damaging the web.

[0032] In this embodiment, the threaded post 430 is provided with a first through hole 420 near the side wall of the circular plate 410.

[0033] In this embodiment, the length ratio of the sleeve 330 to the threaded post 430 is 2:3. The first through hole 420 is provided at the end of the threaded post 430 that extends out of the sleeve 330. The construction personnel can rotate the threaded post 430 by passing the threaded steel bar or iron bar through the first through hole 420 and then pushing the threaded steel bar or iron bar. This makes it convenient for the construction personnel to rotate the threaded post 430.

[0034] In this embodiment, a connector 210 is provided above the hollow tube 310 and connected to the hollow tube 310. The connector 210 includes a base plate 530. A column 510 is provided at one end of the base plate 530 away from the hollow tube 310. The column 510 is used to extend into the hollow tube 310 on the adjacent mounting bracket 120. A second through hole 520 is provided on the side wall of the column 510. A third through hole 360 ​​is provided on the lower side wall of the hollow tube 310, corresponding to the second through hole 520.

[0035] In this embodiment, the construction personnel connect the upper and lower sub-mounting brackets 220 by passing a pin through the third through hole 360 ​​and the second through hole 520, which facilitates the construction personnel to connect the two sub-mounting brackets 220; the base plate 530 is welded to the hollow tube 310.

[0036] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0037] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A work platform for segmental construction of cast-in-place continuous beam web, characterized in that: The system includes a main body (100) of a workbench, which includes mounting frames (120) spaced apart along the height of the web. Each mounting frame (120) includes multiple sub-mounting frames (220) spaced apart along the length of the web. A support platform (240) is provided between adjacent sub-mounting frames (220). Fixing mechanisms (110) are provided on both sides of each sub-mounting frame (220). The fixing mechanisms (110) are used to cooperate with the web to stabilize the mounting frames (120).

2. The work platform for segmental construction of cast-in-place continuous beam web as described in claim 1, characterized in that: The sub-mounting bracket (220) includes two parallel hollow tubes (310), and the upper sidewall of the two hollow tubes (310) is provided with a support rod (390) for connecting the two hollow tubes (310) and the supporting platform (240); there is a cross-arranged connecting rod (230) between two adjacent sub-mounting brackets (220) for connecting the two adjacent hollow tubes (310).

3. The work platform for segmental construction of cast-in-place continuous beam web as described in claim 2, characterized in that: Below the support rod (390) is a first climbing rod (380) for connecting two hollow tubes (310). Below the first climbing rod (380) are two second climbing rods (350) arranged parallel to the hollow tubes (310). Between the second climbing rods (350) and the hollow tubes (310) is a third climbing rod (340) for connecting the second climbing rods (350) and the hollow tubes (310).

4. The work platform for segmental construction of cast-in-place continuous beam web as described in claim 3, characterized in that: The fixing mechanism (110) includes a sleeve (330) disposed on the side wall of the hollow tube (310), and the inner side wall of the sleeve (330) is provided with an internal thread; the sleeve (330) is provided with an extrusion member (320) extending out of the sleeve (330), and the extrusion member (320) includes a threaded post (430) that is threaded with the sleeve (330); a circular plate (410) is provided at the end of the threaded post (430) away from the sleeve (330).

5. The work platform for segmental construction of cast-in-place continuous beam web as described in claim 4, characterized in that: The threaded post (430) has a first through hole (420) near the side wall of the circular plate (410).

6. A work platform for segmental construction of cast-in-place continuous beam webs according to claim 5, characterized in that: A connector (210) is provided above the hollow tube (310) to connect with the hollow tube (310). The connector (210) includes a base plate (530). A column (510) is provided at one end of the base plate (530) away from the hollow tube (310). The column (510) is used to extend into the hollow tube (310) on the adjacent mounting bracket (120). A second through hole (520) is provided on the side wall of the column (510) to penetrate the column (510). A third through hole (360) is provided on the lower side wall of the hollow tube (310) to correspond to the second through hole (520).

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