Large-span steel box arch bridge turning-over auxiliary tool

Abstract

The utility model provides an auxiliary tool for turning over a large-span steel box arch bridge, which belongs to the field of auxiliary tools for turning over the steel box arch bridge and comprises a lifting lug, an L-shaped turning mechanism, auxiliary arc-shaped steel and a temporary beam placing buttress, the lifting lug is arranged on the side edge of the steel box arch bridge, the L-shaped turning mechanism is arranged at the bottom of the steel box arch bridge, and the auxiliary arc-shaped steel is arranged on the auxiliary arc-shaped steel. The auxiliary arc-shaped steel is arranged at the bottom of the right-angle position of the L-shaped turnover mechanism, the temporary beam placing buttress is arranged at the bottom of the steel box arch bridge, and the temporary beam placing buttress serves as a temporary supporting structure of the steel box arch bridge. By arranging the L-shaped turnover mechanism, the steel box arch bridge can be still fixed on the L-shaped turnover mechanism after being turned over again, the tool and the steel box arch bridge can be turned over at the same time, the L-shaped turnover mechanism can be turned over only through two hooks, the turnover speed is high, arc-shaped steel is assisted in achieving turnover arc rotation, the requirement for bottom supporting is not too high, and the tool is convenient to use. And the large-span steel box arch bridge can be quickly turned over in the transportation process.

Description

Technical Field

[0001] The utility model relates to the field of turning auxiliary tooling for steel box arch bridges, in particular to a turning auxiliary tooling for large-span steel box arch bridges. Background Art

[0002] A steel box girder is a thin-walled box structure made by welding steel plates, so it is also called a steel plate box girder. Steel box girders are generally used in bridge manufacturing. By pre-producing sections of steel box girders in the production workshop and then transporting them to the bridge construction site for assembly, the construction efficiency of the bridge is effectively improved. Steel box girder bridges are not only easy to construct, but also have good structural strength and light weight, becoming the mainstream of modern bridge construction technology.

[0003] However, for existing steel box girders with large spans, the transportation and transfer process is relatively troublesome. General cranes cannot lift them quickly during the transfer process. Especially for some transport ships where cranes cannot be placed, turning over the steel box girders with large spans becomes a relatively difficult problem. Therefore, it is necessary to design a large-span steel box arch bridge turning auxiliary tooling. Utility Model Content

[0004] The purpose of the utility model is to provide a large-span steel box arch bridge turning auxiliary tooling to solve the existing technical problems.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0006] An auxiliary tooling for turning over a large-span steel box arch bridge comprises a lifting lug, an L-shaped turning mechanism, auxiliary curved steel and a temporary beam support pier. The lifting lug is arranged on the side of the steel box arch bridge, the L-shaped turning mechanism is arranged at the bottom of the steel box arch bridge, the auxiliary curved steel is arranged at the bottom at a right angle of the L-shaped turning mechanism, and the temporary beam support pier is arranged at the bottom of the steel box arch bridge. The temporary beam support pier serves as a temporary supporting structure of the steel box arch bridge.

[0007] Furthermore, the "L"-shaped flipping mechanism includes a horizontal device and a vertical device, one end of the horizontal device is connected to one end of the vertical device, and the horizontal device and the vertical device are arranged perpendicularly.

[0008] Furthermore, a transverse device lifting lug is provided at the outer end of the transverse device, and the transverse device lifting lug is connected to the external main hook through a main hook lifting rope.

[0009] Furthermore, a vertical device lifting lug is provided at the outer end of the vertical device, and the vertical device lifting lug is connected to the external auxiliary hook through an auxiliary hook lifting rope.

[0010] Furthermore, a fixed lifting lug is provided on the transverse device, and the steel box arch bridge is connected to the fixed lifting lug by setting a fixed steel wire rope through the lifting lug.

[0011] Furthermore, the above solution also includes a ship-mounted lifting lug, which is fixed on the steel box arch bridge.

[0012] Furthermore, the above solution also includes diagonal braces, which are obliquely arranged on both sides of the steel box arch bridge after the steel box arch bridge is flipped.

[0013] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0014] The utility model provides an L-shaped flipping mechanism, which can ensure that the steel box arch bridge is still fixed on the L-shaped flipping mechanism after flipping again, so that the tooling and the steel box arch bridge can be flipped at the same time. The L-shaped flipping mechanism only needs two hooks to flip, and the flipping speed is fast. The auxiliary arc steel realizes the flipping arc rotation, and does not have too high requirements for the bottom support, thereby realizing the rapid flipping of the large-span steel box arch bridge during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the front view of the turning auxiliary tool of the utility model;

[0016] Figure 2 This is a left side view of the turning auxiliary tool of the utility model;

[0017] Figure 3 The utility model discloses a flow chart of turning over a steel box arch bridge by using a turning over auxiliary tool.

[0018] In the attached figure, 1-steel box arch bridge, 2-lifting eye, 3-ship-mounted eye, 4-horizontal device, 5-vertical device, 6-vertical device eye, 7-horizontal device eye, 8-auxiliary arc steel, 9-fixed wire rope, 10-main hook rope, 11-auxiliary hook rope, 12-diagonal brace. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in this specification are merely provided to help readers gain a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0020] like Figure 1-2As shown, a large-span steel box arch bridge turning auxiliary tooling includes a lifting lug 2, an "L"-shaped turning mechanism, an auxiliary arc steel 8 and a temporary beam support pier 13. The lifting lug 2 is set on the side of the steel box arch bridge 1, the "L"-shaped turning mechanism is set at the bottom of the steel box arch bridge 1, the auxiliary arc steel 8 is set at the bottom at a right angle of the "L"-shaped turning mechanism, and the temporary beam support pier 13 is set at the bottom of the steel box arch bridge 1. The temporary beam support pier 13 serves as a temporary support structure for the steel box arch bridge 1. The "L"-shaped turning mechanism is set as an L-shaped steel frame structure to achieve contact with the steel box arch bridge 1 in both directions, avoiding direct contact between the steel box arch bridge 1 and the ground after turning. The auxiliary arc steel 8 serves as a turning arc member. During turning, the auxiliary arc steel 8 is used as a support member, so that turning can be achieved with less force.

[0021] In the embodiment of the present invention, the "L"-shaped turning mechanism includes a horizontal device 4 and a vertical device 5. One end of the horizontal device 4 is connected to one end of the vertical device 5, and the horizontal device 4 and the vertical device 5 are arranged perpendicularly. The horizontal device 4 and the vertical device 5 are arranged as a whole and can be set as a steel frame or an I-beam.

[0022] In the embodiment of the present invention, a transverse device lifting lug 7 is provided at the outer end of the transverse device 4, and the transverse device lifting lug 7 is connected to the external main hook through the main hook lifting rope 10. The external main hook mainly outputs force, so as to pull up the steel box arch bridge 1 from one end.

[0023] In the embodiment of the present invention, the outer end of the vertical device 5 is provided with a vertical device lifting lug 6, which is connected to the external auxiliary hook through an auxiliary hook lifting rope 11. The auxiliary hook mainly plays an auxiliary role to prevent sliding during flipping.

[0024] In the embodiment of the present invention, a fixed lifting lug is provided on the transverse device 4, and the steel box arch bridge 1 is connected to the fixed lifting lug by setting a fixed steel wire rope 9 through the lifting lug 2. After the fixed steel wire rope 9 is fixed, additional steel wire ropes can be added to prevent the steel box arch bridge 1 from separating from the "L"-shaped turnover mechanism.

[0025] In the embodiment of the present invention, a ship-mounted lifting lug 3 is further included, which is fixed on the steel box arch bridge 1. The ship-mounted lifting lug 3 is mainly used for subsequent ship mounting.

[0026] In the embodiment of the present invention, a diagonal brace 12 is further included. After the steel box arch bridge 1 is turned over, the diagonal brace 12 is tilted and arranged on both sides of the steel box arch bridge 1. The diagonal brace 12 is an I-beam and can be multiple, so that the fixing effect is better.

[0027] The specific process of turning over is as follows Figure 3 As shown:

[0028] 1. Use a beam transporter to transport the beam section to the inclined gantry, and keep the width of the beam section consistent with the length of the inclined gantry.

[0029] 2. Use a vehicle to place temporary beam piers. The height of the piers needs to be coordinated with the turning tooling.

[0030] 3. The beam transport vehicle withdraws and the inclined gantry descends to the dock.

[0031] 4. Install the turning tool and use wire rope to connect the beam section lifting lugs to the turning tool.

[0032] 5. After the floating crane hook is connected to the tooling and the auxiliary hook and main hook are subjected to force at the same time, the main hook applies force and adjusts its position to flip the beam section.

[0033] 6. Keep the floating crane stressed and use I-beams as diagonal braces to ensure the stability of the tooling and beam sections.

[0034] 7. Separate the main hook and auxiliary hook from the tooling, and load the beam section onto the lifting eye.

[0035] 8. The beam section is loaded onto the ship, the tooling is removed, and the next section of turning is started.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A large-span steel box arch bridge turning auxiliary tooling, characterized by: The invention comprises a lifting lug (2), an L-shaped turning mechanism, an auxiliary curved steel (8) and a temporary beam support pier (13). The lifting lug (2) is arranged on the side of the steel box arch bridge (1), the L-shaped turning mechanism is arranged at the bottom of the steel box arch bridge (1), the auxiliary curved steel (8) is arranged at the bottom at a right angle of the L-shaped turning mechanism, and the temporary beam support pier (13) is arranged at the bottom of the steel box arch bridge (1). The temporary beam support pier (13) serves as a temporary supporting structure of the steel box arch bridge (1).

2. The auxiliary tooling for turning over a large-span steel box arch bridge according to claim 1 is characterized in that: The "L"-shaped turning mechanism comprises a horizontal device (4) and a vertical device (5), one end of the horizontal device (4) is connected to one end of the vertical device (5), and the horizontal device (4) and the vertical device (5) are arranged vertically.

3. The auxiliary tooling for turning over a large-span steel box arch bridge according to claim 2 is characterized in that: The outer end of the transverse device (4) is provided with a transverse device lifting lug (7), and the transverse device lifting lug (7) is connected to the external main hook through a main hook lifting rope (10).

4. The auxiliary tooling for turning over a large-span steel box arch bridge according to claim 2 is characterized in that: The outer end of the vertical device (5) is provided with a vertical device lifting lug (6), and the vertical device lifting lug (6) is connected to the external auxiliary hook through an auxiliary hook lifting rope (11).

5. The auxiliary tooling for turning over a large-span steel box arch bridge according to claim 2 is characterized in that: A fixed lifting lug is provided on the transverse device (4), and the steel box arch bridge (1) is connected to the fixed lifting lug by providing a fixed steel wire rope (9) through the lifting lug (2).

6. The auxiliary tooling for turning over a large-span steel box arch bridge according to claim 2 is characterized in that: It also includes a ship-mounted lifting lug (3), which is fixed on the steel box arch bridge (1).

7. The auxiliary tooling for turning over a large-span steel box arch bridge according to claim 1 is characterized by: It also includes diagonal braces (12). After the steel box arch bridge (1) is turned over, the diagonal braces (12) are obliquely arranged on both sides of the steel box arch bridge (1).

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