Jacking and supporting device for beam-arch combined steel bridge

Abstract

The utility model relates to a beam arch combined steel bridge pushing and supporting device which comprises a pushing mechanism, a side pushing mechanism, a base, a mounting frame and a deviation rectifying mechanism, a main body structure of the side pushing mechanism is mounted on the base, and the mounting frame is mounted on the base in a sliding mode. The pushing end of the side pushing mechanism is connected with the mounting frame and drives the mounting frame to reciprocate left and right, a main body structure of the deviation rectifying mechanism is fixedly mounted on the mounting frame, and a main body structure of the pushing mechanism is slidably mounted on the mounting frame; and the driving end of the deviation rectifying mechanism is connected with the main body structure of the pushing mechanism and drives the pushing mechanism to reciprocate back and forth. According to the pushing and supporting device for the beam-arch combined steel bridge, through the arrangement of the pushing mechanism, the side pushing mechanism and the deviation rectifying mechanism, the actions of jacking, forward moving, beam falling, returning and the like can be achieved, synchronous jacking, pushing and deviation rectifying adjustment of the steel structure bridge are achieved, and the pushing and supporting device can be used for upper structure construction of large-span and small-span steel structure bridges.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge construction, specifically to a jacking support device for a beam-arch composite steel bridge. Background Technology

[0002] Composite structure bridges, due to their reasonable structural stress characteristics, are increasingly being used in long-span bridges. However, traditional towing-type multi-point continuous jacking equipment can no longer meet the jacking construction requirements of this type of bridge. To ensure structural safety and alignment control meet design requirements during jacking construction, in-depth and systematic research is needed on the jacking construction equipment and technology for long-span composite structure bridges. Utility Model Content

[0003] This utility model provides a beam-arch composite steel bridge jacking support device to solve one or more technical problems existing in the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A beam-arch composite steel bridge jacking support device includes a jacking mechanism, a side-pushing mechanism, a base, a mounting frame, and a correction mechanism. The main structure of the side-pushing mechanism is mounted on the base, and the mounting frame is slidably mounted on the base. The pushing end of the side-pushing mechanism is connected to the mounting frame and drives the mounting frame to reciprocate left and right. The main structure of the correction mechanism is fixedly mounted on the mounting frame, and the main structure of the jacking mechanism is slidably mounted on the mounting frame. The driving end of the correction mechanism is connected to the main structure of the jacking mechanism and drives the jacking mechanism to reciprocate back and forth.

[0005] The beneficial effects of this utility model are: the beam-arch combined steel bridge jacking support device of this utility model, by setting up a jacking mechanism, a side-pushing mechanism and a correction mechanism, can realize actions such as jacking, forward movement, beam lowering and return, and realize synchronous jacking, jacking and correction adjustment of steel structure bridges. It can be used for the construction of the superstructure of steel structure bridges with large and small spans.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the base is provided with a first vertical connecting plate, and the main structure of the side pushing mechanism is installed on the first vertical connecting plate.

[0008] Furthermore, the mounting frame includes a second vertical connecting plate and a horizontal plate that are fixedly connected. The outer side wall of the second vertical connecting plate is provided with a side-mounted U-shaped connecting ear plate. The pushing end of the side-pushing mechanism is inserted into and connected to the U-shaped connecting ear plate. The main structure of the correction mechanism is fixedly installed on the second vertical connecting plate, and the pushing mechanism is slidably connected to the horizontal plate.

[0009] Furthermore, the second vertical connecting plate has a cylindrical or semi-cylindrical structure, and the horizontal plate is installed at the bottom of the cylindrical or semi-cylindrical structure.

[0010] Furthermore, the side-push mechanism includes two side-push cylinders. Two side-mounted U-shaped connecting ears are provided on the outer side wall of the second vertical connecting plate. The two U-shaped connecting ears are respectively set on the front and rear side walls of the mounting frame. The two side-push cylinders are arranged in parallel, and the pushing ends of the two side-push cylinders are respectively inserted into and connected to the two U-shaped connecting ears.

[0011] The beneficial effect of adopting the above-mentioned further solution is that by setting a U-shaped connecting ear plate, it is convenient to connect and limit the pushing end of the side push cylinder.

[0012] Furthermore, the base is provided with guide rails extending to the left and right, and the bottom of the mounting bracket is provided with guide grooves, which are arranged to pass through the left and right sides and are adapted to slide within the guide rails.

[0013] Furthermore, the guide rails are provided in two parallel and spaced-apart configurations; the guide grooves are provided in two parallel and spaced-apart configurations; and the two guide rails are fitted and slidably disposed in the two guide grooves in a one-to-one correspondence.

[0014] Furthermore, the pushing end of the pushing mechanism is arranged facing upwards and connected to a support plate.

[0015] Furthermore, the base is provided with a snap-fit ​​block, which is located on the front or rear side of the mounting bracket. The cable of the correction mechanism extends from the right side and then extends to the lower left side and passes through and snaps onto the snap-fit ​​block.

[0016] Furthermore, there are two correction mechanisms, which are respectively installed on the front and rear sides of the mounting frame; there are two locking blocks, which are respectively located on the front and rear sides of the mounting frame; cable drag chains are also provided on the front and rear sides of the base, with the lower end of the cable drag chain installed on the base to the right of the locking block and the upper end of the cable drag chain installed on the mounting frame. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the beam-arch combined steel bridge jacking support device of this utility model.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Lifting cylinder; 2. Side-push cylinder; 3. Base; 4. Mounting bracket; 5. Correction cylinder; 6. First vertical connecting plate; 7. U-shaped connecting ear plate; 8. Guide rail; 9. Guide groove; 10. Support plate; 11. Cable; 12. Clip block. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0021] like Figure 1 As shown in the figure, a beam-arch composite steel bridge jacking support device of this embodiment includes a jacking mechanism, a side-pushing mechanism, a base 3, a mounting frame 4, and a correction mechanism. The main structure of the side-pushing mechanism is mounted on the base 3, and the mounting frame 4 is slidably mounted on the base 3. The pushing end of the side-pushing mechanism is connected to the mounting frame 4 and drives the mounting frame 4 to reciprocate left and right. The main structure of the correction mechanism is fixedly mounted on the mounting frame 4, and the main structure of the jacking mechanism is slidably mounted on the mounting frame 4. The driving end of the correction mechanism is connected to the main structure of the jacking mechanism and drives the jacking mechanism to reciprocate back and forth.

[0022] like Figure 1 As shown, the base 3 in this embodiment is provided with a first vertical connecting plate 6, and the main structure of the side pushing mechanism is installed on the first vertical connecting plate 6.

[0023] like Figure 1 As shown, in a specific embodiment, the mounting frame 4 includes a second vertical connecting plate and a horizontal plate that are fixedly connected. A side-mounted U-shaped connecting ear plate 7 is provided on the outer side wall of the second vertical connecting plate. The pushing end of the side pushing mechanism is inserted into and connected to the U-shaped connecting ear plate 7. The main structure of the correction mechanism is fixedly installed on the second vertical connecting plate, and the pushing mechanism is slidably connected to the horizontal plate.

[0024] Optionally, the second vertical connecting plate has a cylindrical or semi-cylindrical structure, and the horizontal plate is installed at the bottom of the cylindrical or semi-cylindrical structure.

[0025] like Figure 1 As shown, specifically, the side-pushing mechanism includes two side-pushing cylinders 2. Two side-mounted U-shaped connecting ears 7 are provided on the outer wall of the second vertical connecting plate. The two U-shaped connecting ears 7 are respectively located on the front and rear side walls of the mounting frame 4. The two side-pushing cylinders 2 are arranged in parallel, and their pushing ends are respectively inserted into and connected to the two U-shaped connecting ears 7. The U-shaped connecting ears facilitate the connection and limiting of the pushing ends of the side-pushing cylinders.

[0026] Specifically, the jacking mechanism in this embodiment includes a lifting cylinder 1, and the correction mechanism includes a correction cylinder 5.

[0027] like Figure 1As shown, in a specific embodiment, the base 3 is provided with a guide rail 8 extending to the left and right, and the bottom of the mounting bracket 4 is provided with a guide groove 9. The guide groove 9 is arranged to pass through the left and right and is adapted to slide within the guide rail 8.

[0028] like Figure 1 As shown, in a specific embodiment, the guide rails 8 are provided in two parallel and spaced-apart configurations; the guide grooves 9 are provided in two parallel and spaced-apart configurations; and the two guide rails 8 are adapted to slide in the two guide grooves 9 in a one-to-one correspondence.

[0029] like Figure 1 As shown, in a preferred embodiment, the pushing end of the pushing mechanism is arranged facing upward and connected to a support plate 10.

[0030] like Figure 1 As shown, in a preferred embodiment, the base 3 is provided with a snap-fit ​​block 12, which is disposed on the front or rear side of the mounting bracket 4. The cable 11 of the correction mechanism extends from the right side and extends to the lower left side and passes through and snaps onto the snap-fit ​​block 12.

[0031] like Figure 1 As shown, in a specific embodiment, there are two correction mechanisms, which are respectively installed on the front and rear sides of the mounting frame 4; there are two snap-fit ​​blocks 12, which are respectively arranged on the front and rear sides of the mounting frame 4; cable drag chains are also provided on the front and rear sides of the base 3, with the lower end of the cable drag chain installed on the base 3 on the right side of the snap-fit ​​block 12, and the upper end of the cable drag chain installed on the mounting frame 4.

[0032] In this embodiment, the beam-arch composite steel bridge jacking support device arranges the jacking support device and temporary construction pad beams on temporary piers, ensuring that the pad beams are in complete contact with the bottom of the beam and have sufficient length and rigidity. The jacking cylinders are activated, causing each jacking cylinder to rise synchronously, lifting the steel beam until it detaches from the drop beam support. The side-push cylinders are activated, pushing the steel beam forward one jacking stroke. The jacking cylinders retract until the steel box girder lands on the temporary construction pad beam. The side-push cylinders retract and return to their initial position, preparing for the next jacking stroke. These steps are repeated until the steel beam jacking is complete. The jacking cylinders synchronously lift the entire bridge section, transferring the bridge from pad beam support to the jacking support device support. The side-push cylinders apply force synchronously, overcoming the frictional resistance of the sliding surface, moving the entire bridge forward by one piston length. The jacking cylinders retract synchronously, and the entire bridge synchronously falls onto the temporary construction pad beam, transferring from the jacking support device support to the temporary pad beam support. The side-push cylinders retract, and the upper structure (sliding box) of the device returns to its original position, preparing for the next work station. The device also features lateral correction capabilities, enabling real-time monitoring and control of steel beam displacement to ensure the bridge's alignment meets design requirements during the jacking process. This embodiment can also utilize displacement and pressure sensors to monitor displacement and pressure values ​​in real-time during the jacking process, ensuring the accuracy and safety of the jacking operation.

[0033] The beam-arch combined steel bridge jacking support device in this embodiment, by setting up a jacking mechanism, a side-pushing mechanism and a correction mechanism, can realize actions such as jacking, forward movement, beam lowering and return, and realize synchronous jacking, jacking and correction adjustment of steel structure bridges. It can be used for the construction of the superstructure of steel structure bridges with large and small spans.

[0034] The beam-arch composite steel bridge jacking support device in this embodiment integrates functions such as jacking, translation, and lateral correction. It can not only ensure linear control of the steel beam during the jacking process, but also better adapt to the jacking construction of various bridge types such as slope and vertical curve, making the construction of composite structure bridges more convenient and safer.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A jacking support device for a beam-arch composite steel bridge, characterized in that, The device includes a pushing mechanism, a side pushing mechanism, a base, a mounting bracket, and a correction mechanism. The main structure of the side pushing mechanism is mounted on the base, and the mounting bracket is slidably mounted on the base. The pushing end of the side pushing mechanism is connected to the mounting bracket and drives the mounting bracket to reciprocate left and right. The main structure of the correction mechanism is fixedly mounted on the mounting bracket, and the main structure of the pushing mechanism is slidably mounted on the mounting bracket. The driving end of the correction mechanism is connected to the main structure of the pushing mechanism and drives the pushing mechanism to reciprocate back and forth.

2. The beam-arch composite steel bridge jacking support device according to claim 1, characterized in that, The base is provided with a first vertical connecting plate, and the main structure of the side pushing mechanism is installed on the first vertical connecting plate.

3. The beam-arch composite steel bridge jacking support device according to claim 1, characterized in that, The mounting frame includes a second vertical connecting plate and a horizontal plate that are fixedly connected. The outer side wall of the second vertical connecting plate is provided with a side-mounted U-shaped connecting ear plate. The pushing end of the side-pushing mechanism is inserted into and connected to the U-shaped connecting ear plate. The main structure of the correction mechanism is fixedly installed on the second vertical connecting plate, and the pushing mechanism is slidably connected to the horizontal plate.

4. The beam-arch composite steel bridge jacking support device according to claim 3, characterized in that, The second vertical connecting plate has a cylindrical or semi-cylindrical structure, and the horizontal plate is installed at the bottom of the cylindrical or semi-cylindrical structure.

5. The beam-arch composite steel bridge jacking support device according to claim 3, characterized in that, The side-push mechanism includes two side-push cylinders. Two side-mounted U-shaped connecting ears are provided on the outer side wall of the second vertical connecting plate. The two U-shaped connecting ears are respectively set on the front and rear side walls of the mounting frame. The two side-push cylinders are arranged in parallel, and the pushing ends of the two side-push cylinders are respectively inserted into and connected to the two U-shaped connecting ears.

6. The beam-arch composite steel bridge jacking support device according to claim 1, characterized in that, The base is provided with guide rails extending to the left and right, and the bottom of the mounting bracket is provided with guide grooves that are arranged to pass through the left and right sides. The guide grooves are adapted to slide within the guide rails.

7. The beam-arch composite steel bridge jacking support device according to claim 6, characterized in that, The guide rails are provided in two parallel and spaced-apart configurations; the guide grooves are provided in two parallel and spaced-apart configurations; the two guide rails are fitted and slidably disposed in the two guide grooves in a one-to-one correspondence.

8. The beam-arch composite steel bridge jacking support device according to claim 1, characterized in that, The pushing end of the pushing mechanism is arranged facing upwards and connected to a support plate.

9. The beam-arch composite steel bridge jacking support device according to claim 1, characterized in that, The base is provided with a snap-fit ​​block, which is located on the front or rear side of the mounting bracket. The cable of the correction mechanism extends from the right side and then extends to the lower left side and passes through and snaps onto the snap-fit ​​block.

10. The beam-arch composite steel bridge jacking support device according to claim 9, characterized in that, There are two correction mechanisms, which are respectively installed on the front and rear sides of the mounting frame; there are two locking blocks, which are respectively located on the front and rear sides of the mounting frame; cable drag chains are also provided on the front and rear sides of the base, with the lower end of the cable drag chain installed on the base to the right of the locking block and the upper end of the cable drag chain installed on the mounting frame.

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