Cast-in-place large cantilever prestress cover beam secondary tension construction platform device

Abstract

The utility model relates to a cast-in-place large cantilever prestress cover beam secondary tension construction platform device which comprises a supporting frame and a ladder, the upper end of the supporting frame is fixed below one end of a cross beam assembly, the lower portion of the other end of the cross beam assembly is fixed at the upper end of the ladder, and the supporting frame and the ladder are distributed in a perpendicular mode. A working platform is fixed to the lower end of the escalator, a loading platform is fixed to the lower end of the supporting frame, rollers are installed at the four corners of the bottom of the loading platform, the supporting frame is located on the cover beam through the loading platform, the escalator is located outside the cover beam, and the working platform is moved through the rollers on the loading platform; according to the utility model, by adding the concrete blocks, the load on the loading platform can be adjusted to keep balance with operators and tensioning equipment carried by the working platform below; meanwhile, the rollers are arranged below the loading platform, so that horizontal sliding of the whole tensioning operation platform can be guaranteed, the working efficiency in the construction process is greatly improved, the process of re-disassembly and re-assembly is omitted, and construction is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of safety protection for aerial work platforms, and particularly relates to a construction platform device for the secondary tensioning of cast-in-place large cantilever prestressed capping beams. Background Art

[0002] At present, since the construction operation of the elevated large cantilever prestressed capping beam belongs to aerial work, the construction tensioning operation is relatively difficult. In order to ensure operation safety and improve operation efficiency, it is necessary to build a temporary construction platform. Since the platform is only used for the secondary tensioning of the large cantilever prestressed capping beam, the cycle is short, and a large amount of manpower and cost are required during the building process. The construction labor team often directly uses steel bars to make a simple hanging basket, which has a relatively high safety risk, or builds a support frame and cooperates with a crane for hoisting construction. However, when constructing the next large cantilever prestressed capping beam, it needs to be disassembled and reassembled again, the process is relatively cumbersome, the work efficiency is very low, and the safety risk is high. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and provide a construction platform device for the secondary tensioning of cast-in-place large cantilever prestressed capping beams to solve the problems of safety and cumbersome process during the tensioning of large cantilever prestressed capping beams in the prior art.

[0004] The purpose of the utility model is achieved by the following technical solutions. This construction platform device for the secondary tensioning of cast-in-place large cantilever prestressed capping beams includes a support frame and a ladder. The upper end of the support frame is fixed below one end of a crossbeam assembly, the lower end of the other end of the crossbeam assembly is fixed to the upper end of the ladder, and the support frame and the ladder are vertically distributed; the lower end of the ladder is fixed with an operation platform, the lower end of the support frame is fixed with a load platform, rollers are installed at the four corners of the bottom of the load platform, the support frame is located on the capping beam through the load platform, the ladder is located outside the capping beam, and the movement of the operation platform is realized through the rollers on the load platform.

[0005] The beneficial effects of the utility model are as follows: Compared with the prior art, concrete blocks can be added to adjust the load on the load platform to balance the operators and tensioning equipment carried by the lower operation platform; at the same time, rollers are arranged below the load platform to ensure the horizontal sliding of the entire tensioning operation platform, greatly improving the work efficiency during the construction process, eliminating the process of re-disassembly and re-assembly, and facilitating construction.

[0006] Preferably, there are two support frames which are symmetrically distributed and fixed on both sides of the load platform respectively. The support frame includes two vertical rods and two cross rods. The two cross rods are fixed between the two vertical rods, and the two vertical rods are fixed on the load platform. Through the above structure, the load platform and the cross beam assembly connected to the support frame have better stability and higher structural strength after connection and fixation.

[0007] Preferably, the cross beam assembly includes two cross beams and a connecting rod. The two cross beams are fixed on the support frame and the escalator, and the connecting rod is fixed between the two cross beams. And there are two connecting rods distributed at the upper ends of each support frame and the upper end of the escalator. The above cross beam assembly has better strength and stability. At the same time, with two connecting rods distributed at the upper ends of each support frame and the upper end of the escalator, the overall strength and stability are better.

[0008] Preferably, there are two escalators which are symmetrically distributed and fixed on both sides of the operation platform respectively. The two escalators are fixed by a support rod. This makes the structure of the escalator on the operation platform more stable.

[0009] Preferably, the escalator includes two handrails and steps. The two handrails are distributed in a V shape, and several steps are fixed between the two handrails. The adjacent steps are equally spaced and the spacing is less than 30 cm. Such an escalator structure has better stability, and is convenient for construction workers to climb up and down, facilitating construction.

[0010] Preferably, there are five support rods on the side of the escalator far from the support frame, and three support rods on the side of the escalator close to the support frame. And there is an inclined support rod above the escalator. One end of the inclined support rod is fixed to one side of the escalator, and the other end of the inclined support rod is fixed to one side of the cross beam assembly. This makes the overall structure more stable, and with three support rods on the side of the escalator close to the support frame, it is convenient for construction workers to operate. Description of the Drawings

[0011] Figure 1 is a three-dimensional structural schematic diagram of the cast-in-situ large cantilever prestressed capping beam secondary tensioning construction platform device of the present utility model.

[0012] Figure 2 is a three-dimensional structural schematic diagram of the escalator of the present utility model.

[0013] Figure 3 is a three-dimensional structural schematic diagram of the cross beam assembly of the present utility model.

[0014] The reference numerals in the drawings are respectively: 1, support frame; 2, escalator; 3, crossbeam assembly; 4, working platform; 5, load platform; 6, roller; 7, support rod; 8, inclined support rod; 11, vertical rod; 12, horizontal rod; 21, railing; 22, step; 31, crossbeam; 32, connecting rod. Detailed implementation mode

[0015] The following will introduce the present utility model in detail with reference to the drawings: As shown in the Figures 1 to 3 drawings, the present utility model includes a support frame 1 and an escalator 2. The upper end of the support frame 1 is fixed below one end of the crossbeam assembly 3, and the other end below the crossbeam assembly 3 is fixed to the upper end of the escalator 2, and the support frame 1 and the escalator 2 are vertically distributed; the lower end of the escalator 2 is fixed with a working platform 4, the lower end of the support frame 1 is fixed with a load platform 5, and rollers 6 are installed at the four corners of the bottom of the load platform 5. The support frame 1 is located on the capping beam through the load platform 5, and the escalator 2 is located outside the capping beam, and the movement of the working platform 4 is realized through the rollers 6 on the load platform 5.

[0016] Both the load platform 5 and the working platform 4 are composed of a panel and a back rib. The panel is made of steel plates, and the back rib is composed of channel steels at equal intervals. The thickness of the panel is d, and d≥3mm;

[0017] There are two support frames 1 which are symmetrically distributed and are respectively fixed on both sides of the load platform 5. The support frame 1 includes two vertical rods 11 and two horizontal rods 12. The two horizontal rods 12 are fixed between the two vertical rods 11, and the two vertical rods 11 are fixed on the load platform 5.

[0018] The crossbeam assembly 3 includes two crossbeams 31 and a connecting rod 32. The two crossbeams 31 are fixed on the support frame 1 and the escalator 2, and the connecting rod 32 is fixed between the two crossbeams 31, and two connecting rods 32 are distributed at the upper end of each support frame 1 and the upper end of the escalator 2.

[0019] There are two escalators 2 which are symmetrically distributed and are respectively fixed on both sides of the working platform 4. The two escalators 2 are fixed by a support rod 7.

[0020] The escalator 2 includes two railings 21 and steps 22, which are mainly used for the passage of operators up and down. The two railings 21 are distributed in a V shape, and a number of steps 22 are fixed between the two railings 21. The adjacent steps 22 are equally spaced and the spacing is less than 30 cm.

[0021] Five support rods 7 are provided on the side of the escalator 2 away from the support frame 1, three support rods 7 are provided on the side of the escalator 2 close to the support frame 1, and an inclined support rod 8 is provided above the escalator 2. One end of the inclined support rod 8 is fixed to one side of the escalator 2, and the other end of the inclined support rod 8 is fixed to one side of the crossbeam assembly 3.

[0022] By adding concrete blocks, the load on the load platform 5 can be adjusted to balance the operating personnel and tensioning equipment carried by the lower operating platform 4. At the same time, the four rollers provided under the load platform 5 can ensure the horizontal sliding of the entire tensioning operation platform, greatly improving the working efficiency during the construction process. Meanwhile, to ensure the overall structural strength and stability, six connecting rods 32 are provided in the two cross beams 31, and eight support rods 7 are provided between the escalators, further improving the overall structural safety and avoiding safety problems.

[0023] The above-mentioned support rods 7, inclined support rods 8, vertical rods 11, two cross rods 12, railings 21, and connecting rods 32 are all made of channel steel, and the steps 22 and cross beams 31 are all made of I-beams, and are fixed and formed by welding with each other. This not only greatly reduces the cost, but also makes the formed structure more stable.

[0024] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A cast-in-situ large cantilever prestressed capping beam secondary tensioning construction platform device, comprising a support frame (1) and a ladder (2), characterized in that: The upper end of the support frame (1) is fixed below one end of the crossbeam assembly (3), the other end below the crossbeam assembly (3) is fixed at the upper end of the escalator (2), and the support frame (1) and the escalator (2) are vertically distributed; a working platform (4) is fixed at the lower end of the escalator (2), a load platform (5) is fixed at the lower end of the support frame (1), rollers (6) are installed at the four corners of the bottom of the load platform (5), the support frame (1) is located on the capping beam through the load platform (5), the escalator (2) is located outside the capping beam, and the movement of the working platform (4) is realized through the rollers (6) on the load platform (5).

2. The cast-in-place large cantilever prestressed bent cap secondary tension construction platform device according to claim 1, characterized in that: There are two support frames (1) which are symmetrically distributed and are respectively fixed on both sides of the load platform (5). The support frame (1) includes two vertical rods (11) and two cross rods (12). The two cross rods (12) are fixed between the two vertical rods (11), and the two vertical rods (11) are fixed on the load platform (5).

3. The cast-in-situ large cantilever prestressed bent cap secondary tension construction platform device according to claim 1, wherein: The crossbeam assembly (3) includes two crossbeams (31) and a connecting rod (32). The two crossbeams (31) are fixed on the support frame (1) and the escalator (2), the connecting rod (32) is fixed between the two crossbeams (31), and two connecting rods (32) are distributed at the upper end of each support frame (1) and the upper end of the escalator (2).

4. The cast-in-situ large cantilever prestressed bent cap secondary tensioning construction platform device according to claim 1, characterized in that: There are two escalators (2) which are symmetrically distributed and are respectively fixed on both sides of the working platform (4). The two escalators (2) are fixed by a support rod (7).

5. The cast-in-situ large cantilever prestressed bent cap secondary tensioning construction platform device according to claim 4, characterized in that: The escalator (2) includes two handrails (21) and steps (22). The two handrails (21) are distributed in a V shape, and a number of steps (22) are fixed between the two handrails (21). The adjacent steps (22) are equally spaced and the spacing is less than 30 cm.

6. The cast-in-situ large cantilever prestressed bent cap secondary tension construction platform device according to claim 4, characterized in that: Five support rods (7) are provided on the side of the escalator (2) away from the support frame (1), three support rods (7) are provided on the side of the escalator (2) close to the support frame (1), and an inclined support rod (8) is provided above the escalator (2). One end of the inclined support rod (8) is fixed to one side of the escalator (2), and the other end of the inclined support rod (8) is fixed to one side of the crossbeam assembly (3).

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