Movable pedestal for prefabricated box girder construction

Abstract

The utility model relates to a movable pedestal for prefabricated box girder construction, and belongs to the technical field of prefabricated box girder construction.The movable pedestal comprises a road surface, the movable pedestal is arranged on a track in a sliding mode, a prefabricated pedestal is arranged in the movable pedestal, a prefabricated box girder is arranged on the prefabricated pedestal, and a movable pedestal structure is arranged in the movable pedestal; a reinforcing structure is arranged on the side edge of the prefabricated box girder; the movable pedestal structure comprises a servo motor, a threaded rod, a sleeve and walking wheels. According to the movable pedestal for construction of the prefabricated box girder, the movable pedestal structure is arranged at the bottom of the prefabricated box girder, and the movable pedestal structure not only can make the prefabricated box girder flexibly move on a road surface assembly line, but also can flexibly go to different processes for construction in the construction process; and the reinforcing structures are arranged at the joints of the prefabricated box girder and the supporting rods, so that the stability of the prefabricated box girder and the movable pedestal during displacement is enhanced through the reinforcing structures, and the practicability of the movable pedestal for prefabricated box girder construction is enhanced.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated box girder construction, and in particular to a mobile pedestal for prefabricated box girder construction. Background Art

[0002] At present, prefabricated box girders have been increasingly widely used in bridge construction because they can be constructed simultaneously with the bridge substructure, have a short construction period, can be produced in factories, and their quality is easier to control than cast-in-place box girders.

[0003] Most of the mobile pedestals for prefabricated box girder construction on the market are mainly completed in prefabricated beam yards. First, the fixed pedestal is poured with concrete in the beam yard. After the strength of the fixed pedestal reaches the design requirements, the bottom formwork is installed on the fixed pedestal, the bottom plate steel bars and web steel bars are tied, the side formwork, inner membrane and top formwork are installed, the top plate steel bars are tied, concrete is poured, maintenance is carried out, prestressed tendons are tensioned, and the beam prefabrication is completed. After hoisting to the beam storage area, the next beam prefabrication is carried out. This method is a flow operation construction, and the subsequent process can only be carried out after the previous process is completed and the quality meets the requirements. This method not only seriously restricts the prefabrication speed of the box girder, but also the pedestal of the prefabricated beam box cannot be moved, which makes the mobile pedestal for prefabricated box girder construction need to be improved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present application provides a mobile pedestal for prefabricated box girder construction, which has the advantages of enhancing the practicality of the mobile pedestal for prefabricated box girder construction and solves the problem that the mobile pedestal for prefabricated box girder construction needs to be improved.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a mobile pedestal for the construction of prefabricated box girders, comprising a road surface, a track is arranged on the road surface, a mobile pedestal slides on the track, a prefabricated pedestal is arranged inside the mobile pedestal, a prefabricated box girder is arranged on the prefabricated pedestal, a mobile pedestal structure is arranged inside the mobile pedestal, and a reinforcement structure is arranged on the side of the prefabricated box girder.

[0006] The movable platform structure includes a servo motor, a threaded rod, a sleeve and a travel wheel. The servo motor is arranged on the movable platform, one end of the threaded rod is fixedly connected to the output end of the servo motor, the sleeve is threadedly connected to the threaded rod, and the travel wheel is rotatably connected to the lower end of the sleeve.

[0007] The reinforcement structure includes support rods, reinforcement blocks and reinforcing ribs. The lower ends of the two support rods are arranged on the sides of the movable pedestal, and the upper ends of the two support rods are arranged on the sides of the prefabricated box beam. The upper end of the reinforcement block is fixedly connected to the prefabricated box beam, and the reinforcing ribs are fixedly connected to the support rods.

[0008] By adopting the above technical solution, a movable pedestal structure is provided at the bottom of the prefabricated box girder, and the movable pedestal structure can not only enable the prefabricated box girder to be flexibly moved on the pavement assembly line, but also can be flexibly moved to different process locations for construction during the construction process.

[0009] Furthermore, a process component is provided on the side of the pavement, and the process component includes a concrete pouring area, an installation module area, a web reinforcement area, a web pouring area, a reinforcement bundling area and a tensioning area. The concrete pouring area is arranged on the left side of the pavement, the installation module area is arranged on the side of the concrete pouring area, the web reinforcement area is arranged on the installation module area, the web pouring area is arranged on the side of the web reinforcement area, the reinforcement bundling area is arranged on the side of the web pouring area, and the tensioning area is arranged on the side of the reinforcement bundling area.

[0010] By adopting the above technical solution, the construction method of prefabricated box beam can be clearly demonstrated.

[0011] Furthermore, a thread groove is provided inside the sleeve on one side facing the inner wall of the movable platform, and the sleeve is threadedly connected to the threaded rod through the thread groove.

[0012] Furthermore, a through hole is provided inside the sleeve at the other side of the thread groove, a limiting frame passes through the through hole, and the limiting frame is fixedly connected to the movable platform.

[0013] Furthermore, the sleeve is T-shaped, and the structures in the movable base structure are all distributed based on the symmetrical structure of the movable base.

[0014] Furthermore, a small support block is fixedly connected to the inner wall of the reinforcement block, and a large support block is fixedly connected to a side of the inner wall of the reinforcement block away from the small support block.

[0015] Furthermore, a small side reinforcement rod is fixedly connected to the small support block, a large side reinforcement rod is fixedly connected to the large support block, and upper ends of the small side reinforcement rod and the large side reinforcement rod are fixedly connected to the steel bar block.

[0016] Furthermore, a circular hole is provided in the reinforcement block, and the support rod passes through the circular hole and penetrates the reinforcement block.

[0017] By adopting the above technical solution, a reinforcement structure is provided at the connection between the prefabricated box beam and the support rod, the stability of the prefabricated box beam and the mobile platform during displacement is enhanced through the reinforcement structure, and the practicality of the mobile platform used for the construction of prefabricated box beams is enhanced.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0019] The mobile pedestal for prefabricated box girder construction has the advantages of being provided with a mobile pedestal structure at the bottom of the prefabricated box girder, and the mobile pedestal structure can not only enable the prefabricated box girder to be flexibly displaced on the pavement assembly line, but also can be flexibly moved to different process locations for construction during the construction process. A reinforcement structure is provided at the connection between the prefabricated beam box and the support rod, and the stability of the prefabricated box girder and the mobile pedestal during displacement is enhanced by the reinforcement structure, thereby enhancing the practicality of the mobile pedestal for prefabricated box girder construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a cross-sectional view of the overall structure of this application;

[0021] Figure 2 The flow chart of the assembly line for the mobile platform of this application;

[0022] Figure 3 This is a sectional view of the prefabricated box girder structure of this application;

[0023] Figure 4 This is a three-dimensional diagram of the steel bar block structure for this application.

[0024] In the figure: 1. pavement; 2. concrete pouring area; 3. module installation area; 4. web reinforcement area; 5. web pouring area; 6. reinforcement bundling area; 7. tensioning area; 8. track; 9. prefabricated box girder; 10. mobile pedestal; 11. support rod; 12. prefabricated pedestal; 13. servo motor; 14. threaded rod; 15. sleeve; 16. walking wheel; 17. limit frame; 18. through hole; 19. threaded groove; 20. reinforcement block; 21. reinforcing rib; 22. reinforcement block; 23. small support block; 24. large support block; 25. small side reinforcement rod; 26. large side reinforcement rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] See also Figure 1-3 In this embodiment, a mobile pedestal for prefabricated box girder construction includes a road surface 1, a track 8 is arranged on the road surface 1, a mobile pedestal 10 is slidably arranged on the track 8, a prefabricated pedestal 12 is arranged in the mobile pedestal 10, a prefabricated box girder 9 is arranged on the prefabricated pedestal 12, a mobile pedestal structure is arranged in the mobile pedestal 10, and a reinforcement structure is arranged on the side of the prefabricated box girder 9.

[0027] The mobile pedestal structure includes a servo motor 13, a threaded rod 14, a sleeve 15 and a walking wheel 16. The servo motor 13 is arranged on the mobile pedestal 10, one end of the threaded rod 14 is fixedly connected to the output end of the servo motor 13, the sleeve 15 is threadedly connected to the threaded rod 14, and the walking wheel 16 is rotatably connected to the lower end of the sleeve 15.

[0028] The reinforcement structure includes a support rod 11, a reinforcement block 20 and a reinforcement rib 21. The lower ends of the two support rods 11 are arranged on the sides of the movable pedestal 10, and the upper ends of the two support rods 11 are arranged on the sides of the prefabricated box beam 9. The upper end of the reinforcement block 20 is fixedly connected to the prefabricated box beam 9, and the reinforcement rib 21 is fixedly connected to the support rod 11.

[0029] See also Figure 1 In this embodiment, a process component is arranged on the side of the pavement 1, and the process component includes a concrete pouring area 2, an installation module area 3, a web reinforcement area 4, a web pouring area 5, a reinforcement bundling area 6 and a tensioning area 7. The concrete pouring area 2 is arranged on the left side of the pavement 1, the installation module area 3 is arranged on the side of the concrete pouring area 2, the web reinforcement area 4 is arranged on the installation module area 3, the web pouring area 5 is arranged on the side of the web reinforcement area 4, the reinforcement bundling area 6 is arranged on the side of the web pouring area 5, and the tensioning area 7 is arranged on the side of the reinforcement bundling area 6.

[0030] Among them, stiffener 21 is a term often used in material mechanics and structural engineering, mainly used to improve the strength and stiffness of materials. In architecture, aviation, automobiles and many other engineering fields, in order to withstand greater loads or reduce deformation, it is often necessary to add stiffeners to the material. The stiffener can be an independent design or a part of the material itself.

[0031] See also Figure 2 In this embodiment, a thread groove 19 is formed inside the sleeve 15 on one side of the inner wall of the movable platform 1 , and the sleeve 15 is threadedly connected to the threaded rod 14 through the thread groove 19 .

[0032] In this embodiment, a through hole 18 is formed inside the sleeve 15 at the other side of the thread groove 19 , and a limiting frame 17 passes through the through hole 18 . The limiting frame 17 is fixedly connected to the movable platform 10 .

[0033] In this embodiment, the sleeve 5 is T-shaped, and the structures in the movable base structure are all distributed based on the movable base 10 in a symmetrical structure.

[0034] See also Figure 3-4 In this embodiment, a small support block 23 is fixedly connected to the inner wall of the reinforcement block 20 , and a large support block 24 is fixedly connected to the inner wall of the reinforcement block 20 away from the small support block 23 .

[0035] In this embodiment, a small side reinforcing rod 25 is fixedly connected to the small support block 23 , and a large side reinforcing rod 26 is fixedly connected to the large support block 24 . The upper ends of the small side reinforcing rod 25 and the large side reinforcing rod 26 are both fixedly connected to the steel bar block 22 .

[0036] In this embodiment, a circular hole is formed in the reinforcement block 20 , and the support rod 11 passes through the circular hole and penetrates the reinforcement block 20 .

[0037] The working principle of the above embodiment is:

[0038] Firstly, a concrete pouring area 2, a module installation area 3, a web reinforcement area 4, a web pouring area 5, a reinforcement bundling area 6 and a tensioning area 7 are sequentially arranged on the side of the pavement 1 to coordinate the construction process.

[0039] Secondly, the servo motor 13 is used to drive the threaded rod 14 to rotate, and the rotation of the threaded rod 14 drives the sleeve 15 to move, wherein the sleeve 15 is limited by the limit frame 17, and the displaced sleeve 15 drives the walking wheel 16 to move, thereby achieving the purpose of the prefabricated box girder being able to flexibly move with the moving base.

[0040] Finally, by setting a reinforcement structure at the connection between the prefabricated box girder 9 and the support rod 11, by installing the steel bar block 22 at the upper end of the support rod 11, and by the small support block 23 and the large support block 24 set on the side of the inner wall of the reinforcement block 20 in conjunction with the small side reinforcement rod 25 and the large side reinforcement rod 26 to connect with the steel bar block 22, the stability of the prefabricated box girder and the mobile platform during displacement is enhanced, and the practicality of the mobile platform used for prefabricated box girder construction is enhanced.

Claims

1. A mobile pedestal for prefabricated box girder construction, comprising a pavement (1), characterized in that: A track (8) is arranged on the road surface (1), a movable pedestal (10) is slidably arranged on the track (8), a prefabricated pedestal (12) is arranged inside the movable pedestal (10), a prefabricated box beam (9) is arranged on the prefabricated pedestal (12), a movable pedestal structure is arranged inside the movable pedestal (10), and a reinforcement structure is arranged on the side of the prefabricated box beam (9); The movable platform structure comprises a servo motor (13), a threaded rod (14), a sleeve (15) and a running wheel (16); the servo motor (13) is arranged on the movable platform (10); one end of the threaded rod (14) is fixedly connected to the output end of the servo motor (13); the sleeve (15) is threadedly connected to the threaded rod (14); and the running wheel (16) is rotatably connected to the lower end of the sleeve (15); The reinforcement structure comprises a support rod (11), a reinforcement block (20) and a reinforcement rib (21); the lower ends of the two support rods (11) are arranged on the sides of the movable pedestal (10); the upper ends of the two support rods (11) are arranged on the sides of the prefabricated box beam (9); the upper ends of the reinforcement blocks (20) are fixedly connected to the prefabricated box beam (9); and the reinforcement rib (21) is fixedly connected to the support rod (11).

2. The mobile pedestal for prefabricated box girder construction according to claim 1, characterized in that: A process component is arranged on the side of the pavement (1), and the process component comprises a concrete pouring area (2), an installation module area (3), a web reinforcement area (4), a web pouring area (5), a reinforcement bundling area (6) and a tensioning area (7), wherein the concrete pouring area (2) is arranged on the left side of the pavement (1), the installation module area (3) is arranged on the side of the concrete pouring area (2), the web reinforcement area (4) is arranged on the installation module area (3), the web pouring area (5) is arranged on the side of the web reinforcement area (4), the reinforcement bundling area (6) is arranged on the side of the web pouring area (5), and the tensioning area (7) is arranged on the side of the reinforcement bundling area (6).

3. The mobile pedestal for prefabricated box girder construction according to claim 1, characterized in that: A thread groove (19) is provided inside the sleeve (15) on one side of the inner wall facing the movable platform (10), and the sleeve (15) is threadedly connected to the threaded rod (14) via the thread groove (19).

4. The mobile pedestal for prefabricated box girder construction according to claim 3 is characterized in that: A through hole (18) is provided inside the sleeve (15) at the other side of the thread groove (19), and a limiting frame (17) passes through the through hole (18). The limiting frame (17) is fixedly connected to the movable platform (10).

5. The mobile pedestal for prefabricated box girder construction according to claim 1, characterized in that: The sleeve (15) is T-shaped, and the structures in the movable base structure are all distributed based on the symmetrical structure of the movable base (10).

6. The mobile pedestal for prefabricated box girder construction according to claim 1, characterized in that: A small support block (23) is fixedly connected to the inner wall of the reinforcement block (20), and a large support block (24) is fixedly connected to the inner wall of the reinforcement block (20) at a side away from the small support block (23).

7. The mobile pedestal for prefabricated box girder construction according to claim 6, characterized in that: A small side reinforcing rod (25) is fixedly connected to the small support block (23), a large side reinforcing rod (26) is fixedly connected to the large support block (24), and upper ends of the small side reinforcing rod (25) and the large side reinforcing rod (26) are both fixedly connected to the steel bar block (22).

8. The mobile pedestal for prefabricated box girder construction according to claim 1, characterized in that: A circular hole is provided in the reinforcement block (20), and the support rod (11) passes through the circular hole and penetrates the reinforcement block (20).

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