Connecting structure of arc-shaped bridge bailey beam and construction method

Abstract

The application relates to a connecting structure and construction method of an arc-shaped bridge Bailey beam, which comprises a standard Bailey beam and a special Bailey beam, a fixing plate is arranged on the standard Bailey beam, a connecting plate is arranged on the special Bailey beam, a connecting device and a preset device are arranged on the fixing plate, and the connecting plate is hinged with the fixing plate through the connecting device.

Description

Technical Field

[0001] This invention relates to the field of bridge engineering technology, and in particular to a connection structure and construction method for a Bailey bridge with an arc shape. Background Technology

[0002] In the cast-in-place construction of bridge piers, to ensure the bridge's alignment and stiffness meet requirements, steel pipe piers combined with Bailey bridges are commonly used when the terrain is undulating and the structure is high. This allows for the construction of arched bridges adapted to the terrain, and even the construction of long-span bridges is very convenient, as exemplified by the arch structure and construction method of Bailey beams for long-span bridges (publication number CN104099871A). Special Bailey beams of different heights are used to connect them, allowing these special beams to rotate around the standard beams for easier installation. However, this requires workers to climb the Bailey beams for close-range work, which is time-consuming, labor-intensive, and poses significant safety hazards. These are problems that urgently need to be addressed. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a connection structure and construction method for curved bridge Bailey beams. By using a crane to move a special Bailey beam, it can be directly connected to a standard Bailey beam. The entire construction process is quick and simple, without any safety hazards, thus solving the problems of defects in existing construction methods.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A connection structure and construction method for a curved bridge Bailey beam includes a standard Bailey beam and a special Bailey beam. A fixing plate is provided on the standard Bailey beam, and a connecting plate is provided on the special Bailey beam. A connecting device and a pre-setting device are provided on the fixing plate, and the connecting plate is hinged to the fixing plate through the connecting device.

[0006] Furthermore, the connecting device includes a limiting rod and a spring. A fixing hole is provided on the end face of the fixing plate. The upper and lower walls of the fixing hole are connected to the side of the fixing plate. Matching holes are provided on the left and right walls of the fixing hole. One end of the connecting plate is inserted into the fixing hole. A connecting hole is provided on the side of the connecting plate. The connecting hole is a through hole, and the axis of the connecting hole is parallel to the axis of the matching hole. One end of the limiting rod is inserted into the matching hole and connected to the bottom of the matching hole through the spring. The other end of the limiting rod is inserted into the connecting hole. The connecting plate can rotate around the limiting rod on the fixing plate.

[0007] Furthermore, the preset device is used to limit the position of the limiting rod before the standard Bailey beam is used. The preset device includes a fixing block, a mating block, and a limiting plate. A movable groove is provided on the wall of the fixing hole, and the axis of the movable groove is parallel to the axis of the fixing hole. The mating block is installed in the movable groove, and the fixing block is installed in the fixing hole. The side of the fixing block is connected to the mating block, and the end face of the limiting rod contacts the side of the fixing block. The spring is in a compressed state. An installation groove is provided on the wall of the fixing hole, and the axis of the installation groove is parallel to the axis of the movable groove. The side of the limiting plate contacts the side of the fixing block away from the opening of the fixing hole. One end of the limiting plate is inserted into the installation groove, and the limiting plate is hinged to the closed end of the installation groove near the mating hole. A torsion spring is provided at the hinge of the limiting plate.

[0008] A construction method for the connection structure of a Bailey bridge arch includes the following steps:

[0009] The special Bailey beam is lifted using a crane. Then, the connecting plate is aligned with the fixing hole on the fixing plate. The crane is moved so that the connecting plate contacts the fixing block and is inserted into the fixing hole. The fixing block moves along the movable groove, the limiting plate enters the installation groove, and the limiting rod is inserted into the connecting hole under the action of the spring, so that the standard Bailey beam and the special Bailey beam are stably connected.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention allows for direct connection between a special Bailey beam and a standard Bailey beam by using a crane to move the special Bailey beam. The entire construction process is quick and simple, without any safety hazards, and solves the problems of existing construction methods. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention;

[0013] Figure 2 This is a structural schematic diagram of the fixing plate of the present invention in its unused state.

[0014] Attached diagram labels: 1-Fixed plate, 2-Connecting plate, 3-Fixed block, 4-Matching block, 5-Limiting rod, 6-Spring, 7-Limiting plate, 8-Fixed hole, 9-Matching hole, 10-Connecting hole, 11-Modible groove, 12-Mounting groove. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0016] In the description of this invention, 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 invention based on the specific circumstances.

[0017] The following is combined Figures 1 to 2 The present invention will be described in detail below.

[0018] Example 1

[0019] A connection structure and construction method for a curved bridge Bailey beam includes a standard Bailey beam and a special Bailey beam. A fixing plate 1 is provided on the standard Bailey beam, and a connecting plate 2 is provided on the special Bailey beam. A connecting device and a pre-setting device are provided on the fixing plate 1. The connecting plate 2 is hinged to the fixing plate 1 through the connecting device.

[0020] The connecting device includes a limiting rod 5 and a spring 6. A fixing hole 8 is provided on the end face of the fixing plate 1. The upper and lower holes of the fixing hole 8 are connected to the side of the fixing plate 1. Matching holes 9 are provided on the left and right holes of the fixing hole 8. One end of the connecting plate 2 is inserted into the fixing hole 8. A connecting hole 10 is provided on the side of the connecting plate 2. The connecting hole 10 is a through hole. The axis of the connecting hole 10 is parallel to the axis of the matching hole 4. One end of the limiting rod 5 is inserted into the matching hole 9 and connected to the bottom of the matching hole 9 through the spring 6. The other end of the limiting rod 5 is inserted into the connecting hole 10. The connecting plate 2 can rotate around the limiting rod 5 on the fixing plate 1.

[0021] The preset device is used to limit the position of the limiting rod before the standard Bailey beam is used. The preset device includes a fixing block 3, a mating block 4, and a limiting plate 7. A movable groove 11 is provided on the wall of the fixing hole 8. The axis of the movable groove 11 is parallel to the axis of the fixing hole 8. The mating block 4 is installed in the movable groove 11. The fixing block 3 is installed in the fixing hole 8. The side of the fixing block 3 is connected to the mating block 4. The end face of the limiting rod 5 is in contact with the side of the fixing block 3. The spring 6 is in a compressed state. An installation groove 12 is provided on the wall of the fixing hole 8. The axis of the installation groove 12 is parallel to the axis of the movable groove 11. The side of the limiting plate 7 is in contact with the side of the fixing block 3 away from the opening of the fixing hole 8. One end of the limiting plate 7 is inserted into the installation groove 12. The limiting plate 7 and the installation groove 12 are hinged to the closed end near the mating hole 9. A torsion spring is provided at the hinge of the limiting plate 7.

[0022] A construction method for the connection structure of a Bailey bridge arch includes the following steps:

[0023] The special Bailey beam is lifted using a crane. Then, the connecting plate 2 is aligned with the fixing hole 8 on the fixing plate 1. The crane is moved so that the connecting plate 2 contacts the fixing block 3 and is inserted into the fixing hole 8. The fixing block 3 moves along the movable groove 11, the limiting plate 7 enters the installation groove 12, and the limiting rod 5 is inserted into the connecting hole 10 under the action of the spring 6, so that the standard Bailey beam and the special Bailey beam are stably connected.

[0024] This invention allows for direct connection between a special Bailey beam and a standard Bailey beam by using a crane to move the special Bailey beam. The entire construction process is quick and simple, without any safety hazards, and solves the problems of existing construction methods.

[0025] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A connection structure for a curved bridge Bailey beam, comprising a standard Bailey beam and a special Bailey beam, wherein a fixing plate (1) is provided on the standard Bailey beam and a connecting plate (2) is provided on the special Bailey beam, characterized in that: A connecting device and a preset device are provided on the fixed plate (1), and the connecting plate (2) is hinged to the fixed plate (1) through the connecting device; The connecting device includes a limiting rod (5) and a spring (6). A fixing hole (8) is provided on the end face of the fixing plate (1). The upper and lower holes of the fixing hole (8) are connected to the side of the fixing plate (1). Matching holes (9) are provided on the left and right holes of the fixing hole (8). One end of the connecting plate (2) is inserted into the fixing hole (8). A connecting hole (10) is provided on the side of the connecting plate (2). The connecting hole (10) is a through hole. The axis of the connecting hole (10) is parallel to the axis of the matching hole (9). One end of the limiting rod (5) is inserted into the matching hole (9) and then connected to the bottom of the matching hole (9) through the spring (6). The other end of the limiting rod (5) is inserted into the connecting hole (10). The connecting plate (2) rotates around the limiting rod (5) on the fixing plate (1). The preset device is used to limit the position of the limiting rod before the standard Bailey beam is used. The preset device includes a fixed block (3), a mating block (4), and a limiting plate (7). A movable groove (11) is provided on the wall of the fixed hole (8). The axis of the movable groove (11) is parallel to the axis of the fixed hole (8). The mating block (4) is installed in the movable groove (11). The fixed block (3) is installed in the fixed hole (8). The side of the fixed block (3) is connected to the mating block (4). The end face of the limiting rod (5) is connected to the fixed hole (8). The side of the fixed block (3) is in contact with the spring (6) in a compressed state. An installation groove (12) is provided on the wall of the fixed hole (8). The axis of the installation groove (12) is parallel to the axis of the movable groove (11). The side of the limiting plate (7) is in contact with the side of the fixed block (3) away from the opening of the fixed hole (8). One end of the limiting plate (7) is inserted into the installation groove (12). The limiting plate (7) and the installation groove (12) are hinged to the closed end near the mating hole (9). A torsion spring is provided at the hinge of the limiting plate (7).

2. A construction method for a connection structure of an arc-shaped bridge Bailey beam, applied to the connection structure of an arc-shaped bridge Bailey beam as described in claim 1, characterized in that: Includes the following steps: The special Bailey beam is lifted by a crane, and then the connecting plate (2) is aligned with the fixing hole (8) on the fixing plate (1). The crane is moved so that the connecting plate (2) contacts the fixing block (3) and is inserted into the fixing hole (8). The fixing block (3) moves along the movable groove (11), the limiting plate (7) enters the installation groove (12), and the limiting rod (5) is inserted into the connecting hole (10) under the action of the spring (6), so that the standard Bailey beam and the special Bailey beam are stably connected.

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