Temporary consolidation device for swivel bridge girder

Abstract

The utility model discloses a temporary consolidation device for a main beam of a swivel bridge, belongs to the technical field of temporary consolidation devices for main beams of swivel bridges, and solves the problem that a beam body deforms or is damaged in a concrete pouring or rotating process due to the fact that a temporary consolidation device in the prior art cannot provide uniform supporting strength easily. The device comprises a positioning and reinforcing structure arranged on a turntable based on the center of the turntable and a web of a beam body, and a fixing structure arranged on the positioning and reinforcing structure, the positioning and reinforcing structure comprises a main positioning piece arranged on the turntable and an auxiliary positioning piece which is arranged on the main positioning piece and corresponds to a web of the beam body; the fixing structure comprises concrete-filled steel tubular columns which are matched with the auxiliary positioning pieces and arranged on the rotating disc, twisted steel bars are arranged on the top of each concrete-filled steel tubular column, and the transverse reinforcing supports are arranged on the concrete-filled steel tubular columns and are parallel to the web plate of the beam body. The temporary consolidation device is used for temporary consolidation of the swivel bridge girder.

Description

Technical Field

[0001] A temporary consolidation device for the main girder of a rotating bridge is disclosed, which is used for the temporary consolidation of the main girder of a rotating bridge and belongs to the technical field of temporary consolidation devices for the main girder of a rotating bridge. Background Technology

[0002] Cast-in-place rotating bridges refer to bridge construction methods where the bridge beams are poured on-site and then rotated to their designed positions using specific rotating techniques. The construction steps are as follows: First, the bridge foundation construction is completed, including the foundations for the piers or abutments. Then, the piers or abutments are poured on-site at the bridge site; these structures will serve as the support points for the rotating bridge. A rotating system is installed on the piers or abutments, typically including a ball-and-socket joint structure and a turntable that cooperates with the joint to support and rotate the beam. The beam is then poured directly on the rotating system. After pouring, necessary curing is performed to ensure the concrete reaches sufficient strength. Once the concrete reaches its design strength, the rotating system is used to rotate the beam along a predetermined trajectory to its designed position. After rotation, the beams are precisely joined together and fixed to the piers or abutments using methods such as steel reinforcement welding and prestressing.

[0003] When casting a beam, temporary fixed supports are required on a turntable to prevent displacement of the beam during subsequent rotation. However, existing temporary fixed supports have the following technical problems:

[0004] 1. Temporary consolidation devices may fail to provide uniform support strength, leading to deformation or damage to the beam during concrete pouring or rotation.

[0005] 2. The inability to install quickly results in low installation efficiency. Utility Model Content

[0006] The purpose of this utility model is to provide a temporary consolidation device for the main beam of a rotating bridge, which solves the problem that the temporary consolidation devices in the prior art are prone to failing to provide uniform support strength, resulting in deformation or damage to the beam during concrete pouring or rotation.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A temporary consolidation device for the main beam of a rotating bridge includes a positioning and reinforcement structure set on the turntable based on the center of the turntable and the web of the beam, and a fixing structure set on the positioning and reinforcement structure.

[0009] The positioning and reinforcement structure includes a main positioning component set on the turntable and a secondary positioning component set on the main positioning component corresponding to the web of the beam.

[0010] The fixed structure includes steel tube concrete columns that cooperate with the auxiliary positioning component and are set on the turntable. Each steel tube concrete column is provided with a threaded steel bar at the top and a transverse reinforcing support that is set on the steel tube concrete column and parallel to the web of the beam.

[0011] Furthermore, the main positioning component includes a cross-shaped frame disposed on the turntable. The cross-shaped frame includes a horizontal horizontal plate and a horizontal vertical plate intersecting the horizontal horizontal plate. A through hole corresponding to the center of the turntable is provided at the center of the intersection position of the cross-shaped frame.

[0012] The cross-shaped frame is welded to the turntable.

[0013] Furthermore, each end of the cross-shaped frame is provided with an elastic clamping piece for clamping the edge of the turntable.

[0014] Furthermore, the auxiliary positioning component includes a positioning plate corresponding to the web of the beam, which is set on the horizontal horizontal plate or horizontal vertical plate of the cross-shaped frame. Along the length direction of the positioning plate, a plurality of arc-shaped positioning grooves are equally spaced on one side of the positioning plate.

[0015] Furthermore, the arc-shaped positioning groove is welded to the steel-concrete composite column.

[0016] Furthermore, support blocks connected to the turntable are provided at at least at both ends of the positioning plate, and reinforcing plates are provided between each pair of positioning plates.

[0017] Furthermore, the steel-concrete composite column includes a steel pipe with an outer diameter of 625mm-635mm and a thickness of 9mm-12mm, an mounting plate connected to a turntable at one bottom end of the steel pipe, and C35 concrete poured inside the steel pipe.

[0018] Furthermore, the top of the steel pipe in the steel-concrete composite column is provided with 16 30mm-34mm threaded steel bars, and the threaded steel bars extend out of the steel pipe with a length of at least 1m.

[0019] Furthermore, the steel-concrete composite columns are arranged in two rows, with each row being 3.8m-4.2m away from the center of the turntable.

[0020] Furthermore, each row of steel-concrete composite columns consists of 6 steel-concrete composite columns.

[0021] Compared with the prior art, the advantages of this utility model are:

[0022] I. This utility model uses a positioning and reinforcement structure on a turntable to facilitate the positioning of the secondary positioning component by the main positioning component of the positioning and reinforcement structure. Then, the secondary positioning component is used to quickly position and fix the steel pipe concrete column in the fixed structure. The force is strengthened by the lateral reinforcement support. This not only improves the installation efficiency of the fixed structure, but also facilitates the uniform provision of support strength to the beam body in the future, and avoids deformation or damage during the pouring or rotation of the beam concrete.

[0023] II. In this utility model, after the construction personnel have positioned the center of the turntable and the direction of the beam web, the main positioning component can be quickly aligned with the center of the turntable through the through hole, and the horizontal or vertical plate can be adjusted to be parallel to the beam web. The cross-shaped frame can then be quickly fixed on the turntable by welding.

[0024] 3. The present invention provides elastic clamping pieces at each end of the cross-shaped frame, which facilitates clamping the positioned cross-shaped frame on the turntable and welding and fixing the cross-shaped frame.

[0025] Fourth, the auxiliary positioning component in this utility model corresponds to the web of the beam through the positioning plate, and positions the steel-concrete composite columns installed at equal intervals through multiple arc-shaped positioning grooves on the positioning plate, which not only facilitates the rapid installation of the steel-concrete composite columns.

[0026] V. This utility model sets a support block on the turntable and connects it with the positioning plate, and sets a reinforcing plate between each pair of positioning plates. The purpose is to increase the connection strength between the reinforced concrete column and the turntable, and also to increase the stress strength of the concrete column.

[0027] VI. The steel-concrete composite column of this utility model includes a steel pipe with an outer diameter of 625mm-635mm and a thickness of 9mm-12mm, an installation plate, and concrete, which not only facilitates welding with the turntable, but also helps to make it strong in load-bearing capacity.

[0028] VII. In this utility model, 16 30mm-34mm threaded steel bars are set at the top of the steel bars in the steel-concrete composite column, and the threaded steel bars extend out of the steel pipe by at least 1m. The purpose is to facilitate the strengthening of the fit between the steel-concrete composite column and the web of the beam, and to avoid stress that could cause deformation or damage to the web of the beam. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1This is a schematic diagram of the structure of this utility model installed on a turntable;

[0031] Figure 2 This is a schematic diagram of the positioning and reinforcement structure in this utility model;

[0032] Figure 3 This is a schematic diagram of the main positioning component in this utility model;

[0033] Figure 4 This is a schematic diagram of the secondary positioning component in this utility model;

[0034] Figure 5 This is a schematic diagram of the fixing structure in this utility model;

[0035] Figure 6 This is a partial structural schematic diagram of the steel-concrete composite column in this utility model;

[0036] In the diagram: 1-Turntable, 2-Positioning and reinforcing structure, 3-Fixing structure, 4-Main positioning component, 5-Secondary positioning component, 6-Steel pipe concrete column, 7-Threaded steel bar, 8-Horizontal reinforcing support, 9-Cross-shaped frame, 10-Horizontal horizontal plate, 11-Horizontal vertical plate, 12-Through hole, 13-Elastic clamping piece, 14-Positioning plate, 15-Arc-shaped positioning groove, 16-Support block, 17-Reinforcing plate, 18-Steel pipe, 19-Installation piece, 20-Concrete. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0041] Furthermore, the use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0042] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0044] Example 1

[0045] To address the issue that existing temporary consolidation devices often fail to provide uniform support strength, leading to deformation or damage to the beam during concrete pouring or rotation. For example... Figure 1-6As shown, a temporary consolidation device for the main girder of a rotating bridge is provided, including a positioning and reinforcement structure 2 based on the center of the turntable 1 and the web of the girder, and a fixing structure 3 mounted on the positioning and reinforcement structure 2. The positioning and reinforcement structure 2 includes a main positioning component 4 mounted on the turntable, and a secondary positioning component 5 mounted on the main positioning component 4 corresponding to the web of the girder. The fixing structure 2 includes steel-concrete composite columns 6 mounted on the turntable 1 in cooperation with the secondary positioning components 5. Each steel-concrete composite column 6 is topped with a threaded steel bar 7, and a transverse reinforcing support 8 mounted on the steel-concrete composite column 6 parallel to the web of the girder. These supports can be welded or tied. The lengths of the steel-concrete composite columns 6 and the threaded steel bars 7, as well as their butt joint lengths, are set according to actual requirements.

[0046] In practice, after the turntable on the ball joint is installed, the main positioning component 4 and the secondary positioning component 5 of the positioning and reinforcement structure 2 are installed on the turntable (the main positioning component 4 and the secondary positioning component 5 can be installed in advance or separately and installed sequentially). After installation, the steel tube concrete column 6 with threaded steel bars 7 in the fixed structure 2 is installed on the turntable based on the secondary positioning component 5, and then the transverse reinforcing support 8 is installed on the steel tube concrete column 6. In this embodiment, by positioning and setting the positioning and reinforcement structure on the turntable, it is convenient to position the secondary positioning component through the main positioning component of the positioning and reinforcement structure, and then quickly position and fix the steel tube concrete column in the fixed structure through the secondary positioning component, and strengthen the load through the transverse reinforcing support. This not only improves the installation efficiency of the fixed structure, but also facilitates the uniform provision of support to the beam body in the subsequent process, avoiding deformation or damage during the pouring or rotation of the beam concrete.

[0047] Example 2

[0048] Based on Embodiment 1, the main positioning component 4 includes a cross-shaped frame 9 mounted on the turntable. The cross-shaped frame 9 includes a horizontal plate 10 and a horizontal vertical plate 11 intersecting the horizontal plate 10. A through hole 12 corresponding to the center of the turntable 1 is provided at the center of the intersection of the cross-shaped frame 9. The cross-shaped frame 9 is welded to the turntable 1. Of course, in practice, bolts and threaded holes can also be used for fixing, but this method is prone to affecting the stress on the turntable.

[0049] In practice, after construction workers locate the center of the turntable and the direction of the beam web using instruments, they can mark the turntable center and beam web direction on the turntable. Then, through the through holes, they can quickly align the cross-shaped frame with the turntable center and adjust the horizontal or vertical plate to be parallel to the beam web. The cross-shaped frame can then be quickly fixed to the turntable by welding. If the secondary positioning component is already installed on the main positioning component 4, the secondary positioning component is also positioned and can be fixed to the turntable by welding or threading. If the secondary positioning component is not installed on the main positioning component 4, it needs to be repositioned and installed according to actual needs. It can be fixed by bolts using threaded holes or by welding.

[0050] Example 3

[0051] Based on Embodiment 2, each end of the cross-shaped frame 9 is provided with elastic clamping pieces 13 for clamping the edge of the turntable 1. Providing elastic clamping pieces at each end of the cross-shaped frame facilitates clamping the positioned cross-shaped frame onto the turntable and welding it in place. In practice, the main positioning component can also be fixed to the turntable by providing mounting holes on the elastic clamping pieces for fixing to the turntable.

[0052] Example 4

[0053] Based on Embodiment 3, the auxiliary positioning component 5 includes a positioning plate 14 corresponding to the web of the beam, mounted on the horizontal horizontal plate 10 or horizontal vertical plate 11 of the cross-shaped frame 9. Along the length of the positioning plate 14, a plurality of arc-shaped positioning grooves 15 are evenly spaced on one side. The arc-shaped positioning grooves 15 are welded to the steel-concrete composite column 6. In practice, the auxiliary positioning component corresponds to the web of the beam via the positioning plate, and the steel-concrete composite column is installed at equal intervals via the multiple arc-shaped positioning grooves evenly spaced on the positioning plate. Positioning is achieved by directly contacting and engaging the steel-concrete composite column with the arc-shaped positioning grooves and the turntable. This not only facilitates rapid installation of the steel-concrete composite column but also facilitates rapid welding and fixing of the steel-concrete composite column to the turntable and positioning plate.

[0054] Example 5

[0055] Based on embodiment 4, support blocks 16 connected to the turntable 1 are provided at least at both ends of the positioning plate 14, and reinforcing plates 17 are provided between each pair of positioning plates 14, which can be fixed by welding or other methods. The purpose of providing support blocks on the turntable to connect with the positioning plates and providing reinforcing plates between each pair of positioning plates is to increase the connection strength between the reinforced concrete column and the turntable, and also to increase the stress strength of the concrete column.

[0056] Example 6

[0057] Based on any one of embodiments 1-5, the steel-concrete composite column 6 includes a steel pipe 18 with an outer diameter of 625mm-635mm and a thickness of 9mm-12mm, such as a steel pipe 18 with an outer diameter of 630mm and a thickness of 10mm, an mounting plate 19 connected to the turntable 1 at one bottom end of the steel pipe 18, and C35 concrete 20 poured inside the steel pipe 18. This not only facilitates welding with the turntable but also enhances its load-bearing capacity.

[0058] Example 7

[0059] Based on embodiment 6, the top of the steel pipe 18 in the steel pipe concrete column 6 is provided with 16 threaded steel bars 7 of 30mm-34mm, such as 32mm, and the threaded steel bars 7 extend out of the steel pipe 18 with a length of at least 1m, or 1.1m or 1.2m. The purpose is to facilitate the strengthening of the fit between the steel pipe concrete column and the web of the beam, and to avoid stress that could cause deformation or damage to the web of the beam.

[0060] Example 8

[0061] Based on Example 7, two rows of steel-concrete composite columns 6 are arranged, with each row located 3.8m-4.2m (e.g., 4m) from the center of the turntable 1. Each row has six steel-concrete composite columns 6. The specific arrangement is determined according to the specific requirements of the bridge.

Claims

1. A temporary fixing device for the main beam of a rotating bridge, characterized in that: It includes a positioning and reinforcement structure (2) based on the center of the turntable (1) and the web of the beam, and a fixing structure (3) set on the positioning and reinforcement structure (2); The positioning and reinforcement structure (2) includes a main positioning component (4) set on the turntable and a secondary positioning component (5) set on the main positioning component (4) corresponding to the web of the beam. The fixed structure (2) includes steel tube concrete columns (6) that cooperate with the sub-positioning component (5) and are set on the turntable (1). Each steel tube concrete column (6) is provided with a threaded steel bar (7) at the top, and a transverse reinforcing support (8) that is set on the steel tube concrete column (6) and is parallel to the web of the beam.

2. The temporary fixing device for the main beam of a rotating bridge according to claim 1, characterized in that: The main positioning component (4) includes a cross-shaped frame (9) set on the turntable. The cross-shaped frame (9) includes a horizontal plate (10) and a horizontal vertical plate (11) that intersects with the horizontal plate (10). A through hole (12) corresponding to the center of the turntable (1) is provided at the center of the intersection of the cross-shaped frame (9). The cross-shaped frame (9) is welded to the turntable (1).

3. The temporary fixing device for the main beam of a rotating bridge according to claim 2, characterized in that: Each end of the cross-shaped frame (9) is provided with an elastic clamping piece (13) for clamping the edge of the turntable (1).

4. A temporary fixing device for the main beam of a rotating bridge according to claim 3, characterized in that: The auxiliary positioning component (5) includes a positioning plate (14) on the horizontal horizontal plate (10) or horizontal vertical plate (11) of the cross-shaped frame (9) corresponding to the web of the beam. Along the length direction of the positioning plate (14), a plurality of arc-shaped positioning grooves (15) are provided at equal intervals on one side of the positioning plate (14).

5. A temporary fixing device for the main beam of a rotating bridge according to claim 4, characterized in that: The arc-shaped positioning groove (15) is welded to the steel pipe concrete column (6).

6. A temporary fixing device for the main beam of a rotating bridge according to claim 4, characterized in that: At least at both ends of the positioning plate (14) there are support blocks (16) connected to the turntable (1), and a reinforcing plate (17) is provided between each pair of positioning plates (14).

7. A temporary consolidation device for the main beam of a rotating bridge according to any one of claims 1-6, characterized in that: The steel-concrete composite column (6) includes a steel pipe (18) with an outer diameter of 625mm-635mm and a thickness of 9mm-12mm, an installation plate (19) connected to a turntable (1) at one end of the bottom of the steel pipe (18), and C35 concrete (20) poured inside the steel pipe (18).

8. A temporary fixing device for the main beam of a rotating bridge according to claim 7, characterized in that: The top of the steel pipe (18) in the steel pipe concrete column (6) is provided with 16 30mm-34mm threaded steel bars (7), and the threaded steel bars (7) extend out of the steel pipe (18) and have a length of at least 1m.

9. A temporary fixing device for the main beam of a rotating bridge according to claim 8, characterized in that: The steel-concrete composite columns (6) are arranged in two rows, with each row being 3.8m-4.2m away from the center of the turntable (1).

10. A temporary fixing device for the main beam of a rotating bridge according to claim 9, characterized in that: There are 6 steel-concrete composite columns (6) in each row.

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