Concrete box girder box outer web reinforcing construction operation platform

Abstract

The utility model relates to the technical field of bridge reinforcing construction, and provides a concrete box girder outer web reinforcing construction operation platform which comprises an anti-collision wall, a moving device and a workbench, the anti-collision wall is arranged at the end of a concrete box girder outer web, and the moving device is arranged on the anti-collision wall in the length direction of a concrete box girder. A first vertical rod is vertically arranged at the bottom of the moving device, a plurality of workbenches are horizontally arranged on the side, close to the concrete box girder, of the first vertical rod, the workbenches are connected through connecting ribs, the upper ends of the connecting ribs are anchored to a flange plate of the concrete box girder, and the connecting ribs are connected with the moving device through a pulling device. The construction space of the needed bridge floor is small, normal operation of an existing bridge can be guaranteed, reinforcing construction can be not interrupted, the construction difficulty is reduced, and the good popularization value is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge reinforcement construction, in particular to a concrete box beam outer web reinforcement construction work platform. Background Art

[0002] Concrete box girders in operation often have web cracking problems. Web cracking will not only reduce the stiffness of the bridge, but if the cracking is severe, it will also cause steel corrosion, further reducing the bridge's bearing capacity and posing a safety hazard. For the problem of cracking of the web outside the box, the commonly used reinforcement schemes are to increase the cross-section reinforcement, apply external prestressed reinforcement, glue steel plates and glue fibers. The steel plate and fiber reinforcement method can effectively resist tensile stress and make the steel plate and fiber more closely connected to the original structure, achieving a more stable effect. Therefore, the reinforcement of the web outside the box often takes the measure of gluing steel plates or fibers.

[0003] The reinforcement construction of the outer web of the box is a high-altitude operation, and its safety cannot be guaranteed; the reinforcement project has a tight construction schedule and needs to speed up the construction efficiency; and most reinforcement projects require the interruption of bridge traffic to ensure sufficient construction space, but the interruption of bridge operation affects people's travel and economic development to a certain extent.

[0004] Therefore, in view of the above problems, a concrete box girder outer web reinforcement construction work platform is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model develops a concrete box girder outer web reinforcement construction work platform. The utility model requires a small construction space for the bridge deck, can ensure the normal operation of the existing bridge, and can continue the reinforcement construction, thereby reducing the construction difficulty and having good promotion value.

[0006] The technical solution of the utility model to solve the technical problem is: the utility model provides a concrete box girder outer web reinforcement construction work platform, including a crash wall, a mobile device and a workbench, the crash wall is arranged at the end of the concrete box girder outer web, the mobile device is arranged on the crash wall along the length direction of the concrete box girder, a vertical pole is arranged vertically at the bottom of the mobile device, and a plurality of workbenches are horizontally arranged on the side of the vertical pole close to the concrete box girder, the plurality of workbenches are connected by connecting ribs, the upper ends of the connecting ribs are anchored on the concrete box girder flange plates, and the connecting ribs are connected to the mobile device through a pulling device.

[0007] As an optimization, the mobile device includes a running track, a wheel set, an upper chord, an upper chord connecting rod, a column, a lower chord and a lower chord connecting rod. Two upper chords are connected with two upper chord connecting rods to form a frame structure one, two lower chords are connected with two lower chord connecting rods to form a frame structure two, the bottom of the frame structure one is connected to the frame structure two through the column, the wheel set is arranged at the bottom of the frame structure two, the running track is arranged at the top of the crash wall along the length direction of the crash wall, and the wheel set is arranged in the running track.

[0008] As an optimization, the running rail is anchored to the top of the crash barrier through lateral limit and limit bolts.

[0009] As an optimization, the pulling device includes a hand chain hoist, one end of which is connected to the moving device and the other end is connected to the connecting rib.

[0010] As an optimization, the workbench includes a work platform support, a second vertical pole and a diagonal brace. The work platform support is horizontally arranged, and adjacent working platform supports are connected through the second vertical pole. One end of the diagonal brace is connected to the connection between the first vertical pole and the work platform support, and the other end is connected to the second vertical pole.

[0011] As an optimization, the working platform support includes transverse braces, lower stiffening ribs and diagonal braces. The transverse braces and the lower stiffening ribs form a frame structure. Diagonal braces are arranged in the frame structure to form an X-shaped truss structure. The lower end of the connecting reinforcement is anchored on the lower stiffening rib.

[0012] As an optimization, iron mesh grilles are installed around the cross braces and lower stiffening ribs.

[0013] As an optimization, a step ladder is set on the side of the vertical pole close to the concrete box girder.

[0014] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0015] 1. This new type has a simple structure, convenient construction, strong applicability and versatility, and the materials are easily available and easy to manufacture. This device is set on the top of the bridge deck anti-collision wall, anchored on the flange plate, and horizontally pulled against the connecting ribs to ensure stability;

[0016] 2. The running track and the working platform moving device ensure the movement of the entire construction working platform along the bridge, greatly improving the construction efficiency;

[0017] 3. The X-shaped truss structure is adopted to improve the rigidity of the working platform support, and the iron mesh fence ensures that the construction equipment will not fall, ensuring the safety of the construction workers;

[0018] 4. The required bridge deck construction space is small, which can ensure the normal operation of the existing bridge and can continue the reinforcement construction, reducing the construction difficulty and having good promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 It is a side view of the utility model;

[0022] Figure 3 It is a top view of the utility model;

[0023] Figure 4 This is a structural diagram of the mobile device of the utility model;

[0024] Figure 5 A structural diagram of the working platform support of the utility model;

[0025] Figure 6 This is a physical diagram of the present utility model.

[0026] In the figure, 1. upper chord; 2. column; 3. lower chord; 4. wheel set; 5. hand chain hoist; 6. connecting rib; 7. anti-collision wall; 9. vertical pole 1; 10. diagonal brace; 11. mesh fence; 2. work platform support; 13. running track; 14. lateral limit; 15. limit bolt; 16. step ladder; 17. upper chord connecting rod; 18. lower chord connecting rod; 19. horizontal brace; 20. lower stiffening rib; 21. diagonal diagonal brace. DETAILED DESCRIPTION

[0027] like Figures 1 to 5 As shown, a concrete box girder outer web reinforcement construction work platform includes a crash barrier 7, a moving device and a workbench, the crash barrier 7 is arranged at the end of the concrete box girder outer web, the moving device is arranged on the crash barrier 7 along the length direction of the concrete box girder, a vertical pole 9 is vertically arranged at the bottom of the moving device, and a plurality of workbenches are horizontally arranged on the side of the vertical pole 9 close to the concrete box girder, and the plurality of workbenches are connected by connecting ribs 6, the upper ends of the connecting ribs 6 are anchored on the flange plates of the concrete box girder, and the connecting ribs 6 are connected to the moving device through a pulling device.

[0028] In this embodiment, the mobile device includes a running track 13, a wheel group 4, an upper chord rod 1, an upper chord rod connecting rod 17, a column 2, a lower chord rod 3 and a lower chord rod connecting rod 18. The two upper chord rods 1 are connected to the two upper chord rod connecting rods 17 to form a frame structure one, the two lower chord rods 3 are connected to the two lower chord rod connecting rods 18 to form a frame structure two, the bottom of the frame structure one is connected to the frame structure two through the column 2, the wheel group 4 is arranged at the bottom of the frame structure two, the running track 13 is arranged at the top of the anti-collision wall 7 along the length direction of the anti-collision wall 7, and the wheel group 4 is arranged in the running track 13.

[0029] The running track 13 is anchored on the top of the anti-collision wall 7 by a transverse limit 14 and a limit bolt 15. The running track 13 can be used to quickly move the workbench, ensure that the workbench moves along the bridge, speed up the construction progress, and have high safety.

[0030] In this embodiment, the pulling device includes a hand chain hoist 5, one end of which is connected to the moving device, and the other end is connected to the connecting bar 6. The connecting bar 6 is a finely rolled threaded steel bar. The hand chain hoist 5 is used to pull the moving device and the connecting bar 6, and the finely rolled threaded steel bar 6 ensures that the construction work platform will not shake, thereby ensuring the stability of the construction work platform.

[0031] In this embodiment, the workbench includes a work platform support 12, a second vertical pole 22 and a diagonal brace 10. The work platform support 12 is horizontally arranged, and adjacent work platform supports 12 are connected through the second vertical pole 22. One end of the diagonal brace 10 is connected to the connection between the vertical pole 1 9 and the work platform support 12, and the other end is connected to the second vertical pole 22.

[0032] In order to improve the rigidity of the working platform support 12, the working platform support 12 includes a transverse brace 19, a lower stiffening rib 20 and a diagonal brace 21. The transverse brace 19 and the lower stiffening rib 20 form a frame structure. The diagonal brace 21 is arranged in the frame structure to form an X-shaped truss structure. The lower end of the connecting rib 6 is anchored on the lower stiffening rib 20.

[0033] The cross brace 19 and the lower stiffening rib 20 are surrounded by an iron mesh fence 11. The iron mesh fence 11 ensures that the construction equipment will not fall, thereby ensuring the safety of the construction personnel.

[0034] In this embodiment, a step ladder 16 is provided on one side of the vertical pole 9 close to the concrete box beam.

[0035] When in use, first use I-beams to weld into a whole and install the iron mesh fence 11 in the factory. The construction workers install the running track 13 on the top of the bridge deck crash wall, and then use a crane to hang it on the top of the crash wall 7. Anchor one end of the three connecting bars 6 on the flange plate and the other end on the bottom work platform support 12 to support the entire workbench. After the anchoring is completed, use the hand winch 5 to pull the workbench against the opposite side. After the pulling is completed, the construction workers use the step ladder 16 on the workbench to perform a preload test to carry out equipment load inspection. Subsequent segment construction can use the running track 13, the moving device and the hand winch 5 to manually push the outer web workbench of the box, thereby improving the construction efficiency. The above measures can achieve the purpose of normal operation of the existing bridge, ensuring construction safety and improving construction efficiency.

[0036] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, this does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A concrete box girder outer web reinforcement construction work platform, characterized by: The invention comprises a crash barrier (7), a moving device and a workbench, wherein the crash barrier (7) is arranged at the end of the outer web of a concrete box beam, the moving device is arranged on the crash barrier (7) along the length direction of the concrete box beam, a vertical pole (9) is arranged vertically at the bottom of the moving device, a plurality of workbenches are arranged horizontally on the side of the vertical pole (9) close to the concrete box beam, the plurality of workbenches are connected by connecting ribs (6), the upper end of the connecting ribs (6) is anchored on the flange plate of the concrete box beam, and the connecting ribs (6) are connected to the moving device through a pulling device; the workbench comprises a work platform support (12), a second vertical pole (22) and a diagonal brace (10), the work platform support (12 ) are arranged horizontally, and adjacent working platform supports (12) are connected by vertical poles (22). One end of the diagonal brace (10) is connected to the connection between the vertical pole (9) and the working platform support (12), and the other end is connected to the vertical pole (22). The working platform support (12) includes a horizontal brace (19), a lower stiffening rib (20) and a diagonal brace (21). The horizontal brace (19) and the lower stiffening rib (20) form a frame structure. The diagonal brace (21) is arranged in the frame structure to form an X-shaped truss structure. The lower end of the connecting rib (6) is anchored on the lower stiffening rib (20). An iron mesh fence (11) is arranged on the horizontal brace (19) and the lower stiffening rib (20).

2. The concrete box girder outer web reinforcement construction work platform according to claim 1 is characterized in that: The mobile device comprises a running track (13), a wheel group (4), an upper chord rod (1), an upper chord rod connecting rod (17), a column (2), a lower chord rod (3) and a lower chord rod connecting rod (18); two upper chord rods (1) are connected to two upper chord rod connecting rods (17) to form a frame structure 1; two lower chord rods (3) and two lower chord rod connecting rods (18) are connected to form a frame structure 2; the bottom of the frame structure 1 is connected to the frame structure 2 via the column (2); the wheel group (4) is arranged at the bottom of the frame structure 2; the running track (13) is arranged at the top of the anti-collision wall (7) along the length direction of the anti-collision wall (7); and the wheel group (4) is arranged in the running track (13).

3. The concrete box girder outer web reinforcement construction work platform according to claim 2 is characterized by: The running rail (13) is anchored on the top of the anti-collision wall (7) through a transverse limiter (14) and a limit bolt (15).

4. The concrete box girder outer web reinforcement construction work platform according to claim 2 is characterized in that: The pulling device comprises a hand chain hoist (5), one end of the hand chain hoist (5) is connected to the moving device, and the other end is connected to the connecting rib (6).

5. The concrete box girder outer web reinforcement construction work platform according to claim 1 is characterized by: A step ladder (16) is provided on one side of the first vertical pole (9) close to the concrete box beam.

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