Bridge pushing supporting device

Abstract

The embodiment of the utility model provides a bridge pushing and supporting device which comprises a base and at least two sets of movable pushing mechanisms, and the at least two sets of movable pushing mechanisms are arranged in the length direction of the base at intervals. Each movable pushing mechanism is arranged on the base in the mode that the movable pushing mechanisms can move in the length direction of the base, and the movable pushing mechanisms are configured to be used for pushing a bridge. The bridge pushing supporting device can freely ascend and descend, steel plates do not need to be increased or decreased, the operation difficulty is reduced, and the safety risk is reduced. Besides, the at least two movable pushing mechanisms of each bridge pushing and supporting device can convey the bridge sections, so that the conveying efficiency of the bridge pushing and supporting devices can be improved, the mounting efficiency of the whole bridge is improved, and the bridge mounting period is shortened.

Description

Technical Field

[0001] The embodiments disclosed herein belong to the field of bridge construction technology, specifically relating to a bridge jacking support device. Background Technology

[0002] In the construction of steel bridges, the most commonly used step-by-step jacking technology involves lifting, pushing, lowering, and retracting in each cycle. During the lowering process, temporary piers are used to support the steel beams. The alignment of large steel beams changes in real time during the jacking process, requiring timely adjustments to the pier height. A common adjustment method is to add or remove steel plates from the piers. This process is extremely labor-intensive, and due to limited space under the bridge deck, hoisting equipment is difficult to access, resulting in significant operational difficulties and safety risks. Utility Model Content

[0003] The embodiments disclosed herein are intended to at least address one of the technical problems existing in the prior art, and to provide a bridge jacking support device.

[0004] The present disclosure provides a bridge jacking support device, which includes a base and at least two sets of movable jacking mechanisms. The base is provided with a slide rail, and the at least two sets of movable jacking mechanisms are slidably connected to the slide rail. The at least two sets of movable jacking mechanisms are arranged at intervals along the length direction of the slide rail. The movable jacking mechanisms are configured to jack the bridge.

[0005] In some embodiments of this disclosure, the movable pushing mechanism includes:

[0006] A sliding housing, which is slidably connected to the top of the base;

[0007] A lifting cylinder is located inside the translation box and is configured to push the bridge.

[0008] A translation cylinder is driven and connected to the translation box, and the translation cylinder is configured to push the translation box to move.

[0009] In some embodiments of this disclosure, the movable pushing mechanism further includes:

[0010] A correction cylinder, the output end of which is connected to the lifting cylinder, is configured to adjust the movement of the lifting cylinder along the width direction of the base.

[0011] In some embodiments of this disclosure, the bridge jacking support device includes a first movable jacking mechanism and a second movable jacking mechanism. The first movable jacking mechanism includes a first translation cylinder located on the side of the first movable jacking mechanism opposite to the second movable jacking mechanism. The second movable jacking mechanism includes a second translation cylinder located on the side of the second movable jacking mechanism opposite to the first movable jacking mechanism.

[0012] In some embodiments of this disclosure, the lifting cylinder includes a fixed end and a telescopic end, the fixed end being fixedly connected to the bottom of the translation box, and the telescopic end being movably connected to the fixed end, the telescopic end being configured to extend and retract along the height direction of the bridge.

[0013] In some embodiments of this disclosure, the bridge jacking support device includes a first movable jacking mechanism and a second movable jacking mechanism. The first movable jacking mechanism includes a first correction cylinder, and the second movable jacking mechanism includes a second correction cylinder. The first correction cylinder and the second correction cylinder are located on the same side of the base.

[0014] In some embodiments of this disclosure, the movable pushing mechanism further includes:

[0015] A lifting displacement sensor is provided on the lifting cylinder, and the lifting displacement sensor is used to sense the lifting distance of the lifting cylinder.

[0016] A horizontal displacement sensor is provided on the translation cylinder, and the horizontal displacement sensor is used to sense the moving distance of the translation cylinder;

[0017] A correction displacement sensor is provided on the correction cylinder, and the correction displacement sensor is used to sense the adjustment distance of the correction cylinder.

[0018] In some embodiments of this disclosure, the slide rail includes a first slide groove and a second slide groove, the first slide groove and the second slide groove being arranged at intervals along the length direction of the base, and the bridge jacking support device includes two sets of the movable jacking mechanisms, the two sets of the movable jacking mechanisms being slidably connected to the first slide groove and the second slide groove respectively.

[0019] In some embodiments of this disclosure, the first slide and the second slide have the same structure and the same size.

[0020] In some embodiments of this disclosure, along the length of the base, the two sides of the first slide groove are flush with the two sides of the second slide groove.

[0021] According to the bridge jacking support device of this disclosure, the height can be freely raised and lowered through the movable jacking mechanism without adding or removing steel plates, reducing operational difficulty and safety risks. Furthermore, at least two movable jacking mechanisms of each bridge jacking support device 100 can respectively transport bridge segments 200, thereby improving the transport efficiency of the bridge jacking support device 100, and consequently improving the overall bridge installation efficiency and shortening the bridge installation cycle. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a bridge jacking support device according to an embodiment of the present disclosure;

[0023] Figure 2 for Figure 1 The diagram shows the first state of the bridge jacking support device jacking the bridge section.

[0024] Figure 3 for Figure 1 The diagram shows the second state of the bridge jacking support device jacking the bridge section.

[0025] Figure 4 for Figure 1 The diagram shows the third state of the bridge jacking support device jacking the bridge section.

[0026] Figure 5 for Figure 1 The diagram shows the fourth state of the bridge jacking support device jacking the bridge section.

[0027] Figure 6 for Figure 1 The diagram shows the fifth state of the bridge jacking support device jacking the bridge section.

[0028] Figure 7 for Figure 1 The diagram shows the sixth state of the bridge jacking support device jacking the bridge section.

[0029] The labels in the attached diagram are as follows:

[0030] 100. Bridge jacking support device;

[0031] 10. Base; 11. Slide rail; 111. First slide groove; 112. Second slide groove;

[0032] 20. First movable jacking mechanism; 21. First lifting cylinder; 22. First translation box; 23. First translation cylinder; 24. First correction cylinder; 25. First lifting displacement sensor; 26. First horizontal displacement sensor; 27. First correction displacement sensor;

[0033] 30. Second movable jacking mechanism; 31. Second lifting cylinder; 32. Second translation box; 33. Second translation cylinder; 34. Second correction cylinder; 35. Second lifting displacement sensor; 36. Second horizontal displacement sensor; 37. Second correction displacement sensor;

[0034] 200. Bridge section;

[0035] 300. Temporary support pier. Detailed Implementation

[0036] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0037] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0038] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0039] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0040] like Figure 1 As shown, an embodiment of this disclosure provides a bridge jacking support device 100, which includes a base 10 and at least two sets of movable jacking mechanisms. The at least two sets of movable jacking mechanisms are slidably connected to a slide rail 11, and the at least two sets of movable jacking mechanisms are arranged at intervals along the length direction of the slide rail 11. The movable jacking mechanisms are configured to jack the bridge.

[0041] According to an embodiment of this disclosure, a bridge jacking support device includes a base 10 and at least two sets of movable jacking mechanisms. The at least two sets of movable jacking mechanisms are disposed on the base 10 and are spaced apart along the length of a slide rail 11, and are slidably connected to the slide rail 11. Specifically, a bridge segment 200 moves above the base 10 along its length. The bridge segment 200 slides from one end of the base 10 to above the base 10 via the movable jacking mechanisms. The first movable jacking mechanism 20 closest to the bridge segment 200 lifts the bridge segment 200. The first movable jacking mechanism 20 and the bridge segment 200 move forward together along the length of the base 10. When the first movable jacking mechanism 20 reaches its limit point, it stops moving. The bridge segment 200 located below the bridge segment 200... The second movable jacking mechanism 30 moves toward the bridge section 200, moves to below the bridge section 200, and lifts the bridge section 200. The first movable jacking mechanism 20 descends and is no longer under force. The second movable jacking mechanism 30 moves forward along the length of the base 10 together with the bridge section 200. When the second movable jacking mechanism 30 reaches its movement limit point, it stops moving. At least two sets of movable jacking mechanisms sequentially lift, move, and then descend along the length of the base 10, thereby realizing the conveying of the bridge section 200. Specifically, the base 10 is provided with a slide rail 11, and at least two sets of movable jacking mechanisms are slidably connected to the slide rail 11. Each set of movable jacking mechanisms can slide along the slide rail 11 to push the bridge section 200 to move. Along the direction of movement of the bridge section 200, at least two sets of movable jacking mechanisms sequentially lift the bridge section 200 and then move along the slide rail 11, thereby realizing the conveying of the bridge section 200. The bridge jacking support device 100 in this embodiment can be freely raised and lowered without adding or removing steel plates, reducing operational difficulty and safety risks. Furthermore, each bridge jacking support device 100 has at least two movable jacking mechanisms that can respectively transport bridge sections 200, thereby improving the transport efficiency of the bridge jacking support device 100, and consequently improving the overall bridge installation efficiency and shortening the bridge installation cycle.

[0042] The slide rail 11 includes at least two slide grooves, which are spaced apart along the length of the base 10. The number of slide grooves is the same as the number of movable jacking mechanisms, and each movable jacking mechanism is slidably connected in a corresponding slide groove.

[0043] In this embodiment, the slide rail 11 includes a first slide groove 111 and a second slide groove 112. The first slide groove 111 and the second slide groove 112 are arranged at intervals along the length direction of the base 10. The first movable jacking mechanism 20 of the two sets of movable jacking mechanisms is slidably connected to the first slide groove 111, and the second movable jacking mechanism 30 of the two sets of movable jacking mechanisms is slidably connected to the second slide groove 112. The interval between the first slide groove 111 and the second slide groove 112 can prevent the first movable jacking mechanism 20 and the second movable jacking mechanism 30 from colliding during movement, ensuring the safety and reliability of the bridge jacking support device 100. At the same time, the interval between the first slide groove 111 and the second slide groove 112 can prevent the trajectories of the first movable jacking mechanism 20 and the second movable jacking mechanism 30 from overlapping, thereby improving the conveying efficiency of the bridge jacking support device 100.

[0044] In some embodiments of this disclosure, the first slide groove 111 and the second slide groove 112 have the same structure and the same dimensions. By setting the first slide groove 111 and the second slide groove 112 to have the same structure and the same dimensions, the difficulty of machining the first slide groove 111 and the second slide groove 112 into the base 10 can be reduced, while ensuring the movement trajectory of the first movable pushing mechanism 20 and the second movable pushing mechanism 30. Specifically, the first slide groove 111 and the second slide groove 112 are both rectangular grooves, with the long side of the rectangular groove arranged along the length direction of the base 10 and the short side of the rectangular groove arranged along the width direction of the base 10. Correspondingly, in this embodiment, the first movable pushing mechanism 20 and the second movable pushing mechanism 30 have the same structure and the same dimensions. Furthermore, the first movable pushing mechanism 20 is adapted to the first slide groove 111, that is, the second movable pushing mechanism 30 is adapted to the second slide groove 112. By setting the first movable jacking mechanism 20 and the second movable jacking mechanism 30 to have the same structure and the same size, the movement trajectory of the first movable jacking mechanism 20 in the first slide groove 111 and the movement trajectory of the second movable jacking mechanism 30 in the second slide groove 112 can be guaranteed.

[0045] Furthermore, along the length of the base 10, the first side of the first slide groove 111 is located on the extension line of the first side of the second slide groove 112, and the second side of the first slide groove 111 is located on the extension line of the second edge of the second slide groove 112. Both sides of the first slide groove 111 are parallel to the moving direction of the movable jacking mechanism, and both sides of the second slide groove 112 are parallel to the moving direction of the movable jacking mechanism.

[0046] In some embodiments of this disclosure, the bridge jacking support device 100 includes two sets of movable jacking mechanisms. These two sets of movable jacking mechanisms can transport the bridge segment 200, and the transport efficiency of the two sets of movable jacking mechanisms is higher than that of a single movable jacking mechanism, thus improving the transport efficiency of the bridge segment 200. The two sets of movable jacking mechanisms are spaced apart along the length of the base 10, and their movement spaces do not overlap. This means that the two sets of movable jacking mechanisms will not affect each other's normal movement, ensuring that each movable jacking mechanism can move normally and guaranteeing the reliability of the bridge jacking support device 100.

[0047] In other embodiments of this disclosure, the movable jacking mechanism may be three, four, five, six, seven, eight, nine or more groups, as long as the center of gravity of each movable jacking mechanism is on the lower pier, that is, to ensure that the bridge jacking support device 100 will not fall off the pier or tilt, thus ensuring the safety of the bridge jacking support device 100.

[0048] In some embodiments of this disclosure, the movable jacking mechanism includes: a translation box, a lifting cylinder, and a translation cylinder. The translation cylinder is driven and connected to the translation box. The translation box is slidably connected to the slide rail 11 on the top of the base 10. The lifting cylinder is disposed in the translation box and is configured to jack the bridge. The translation cylinder drives the translation box to move along the length direction of the base 10. The translation box drives the lifting cylinder to move, thereby the lifting cylinder conveys the bridge section 200 on its top forward.

[0049] Specifically, a first translation box 22 of a first movable jacking mechanism 20 is slidably connected in the first slide groove 111. A first lifting cylinder 21 of the first movable jacking mechanism 20 is provided in the first translation box 22. A first translation cylinder 23 of the first movable jacking mechanism 20 is driven and connected to the first translation box 22. A second translation box 32 of a second movable jacking mechanism 30 is slidably connected in the second slide groove 112. A second lifting cylinder 31 of the second movable jacking mechanism 30 is provided in the second translation box 32. A second translation cylinder 33 of the second movable jacking mechanism 30 is driven and connected to the second translation box 32.

[0050] When bridge segment 200 needs to be transported, the first lifting cylinder 21 extends towards the bridge segment 200. When the first lifting cylinder 21 contacts the bottom of the bridge segment 200, it continues to lift the bridge segment 200 upwards to ensure a certain distance between the bridge segment 200 and the second lifting cylinder 31. After the first lifting cylinder 21 has lifted the bridge segment 200 upwards a certain distance and ensured that the bridge segment 200 will not collide with the second lifting cylinder 31 during movement, the first translation cylinder 23 drives the first translation box 22 to move forward along the length of the base 10. When the first translation cylinder 23 moves to the limit position of the first slide 111, it stops driving the first translation box 22, and the second translation cylinder 33 drives the second translation box 32 towards the second translation box 32. When the second translation box 32 moves to the limit position of the second slide 112, the second translation cylinder 33 stops driving the second translation box 32, and the second lifting cylinder 31 extends towards the bridge section 200 until the second lifting cylinder 31 contacts the bottom of the bridge section 200. At this time, the first lifting cylinder 21 moves away from the bridge section 200 until the distance between the top surface of the first lifting cylinder 21 and the bridge section 200 reaches a predetermined distance, or the first lifting cylinder 21 retracts to the limit position. At this time, the first movable jacking mechanism 20 completes the first movement of the bridge section 200. The second movable jacking mechanism 30 operates in the same way as the first movable jacking mechanism 20, that is, the second movable jacking mechanism 30 continues to push the bridge section 200 forward along the length direction of the base 10 in the same way.

[0051] Furthermore, the first translation cylinder 23 is located on the side of the first translation box 22 away from the second translation box 32, and the second translation cylinder 33 is located on the side of the second translation box 32 away from the first translation box 22, so as to avoid mutual interference between the first translation cylinder 23 and the second translation cylinder 33 and ensure the normal operation of the first translation cylinder 23 and the second translation cylinder 33.

[0052] In some embodiments of this disclosure, the lifting cylinder includes a fixed end and a telescopic end. The fixed end is fixedly connected to the bottom of the translation box. Specifically, the translation box has an open structure. The fixed end is connected to the bottom plate of the translation box. The telescopic end is movably connected to the fixed end. The telescopic end can extend out of the translation box from the opening of the translation box. The telescopic end is configured to extend and retract along the height direction of the bridge.

[0053] In some embodiments of this disclosure, the movable jacking mechanism further includes a correction cylinder, the output end of which is connected to the lifting cylinder. Specifically, the correction cylinder is connected to the fixed end of the lifting cylinder, and is configured to adjust the movement of the lifting cylinder along the width direction of the base 10. By adjusting the displacement of the lifting cylinder along the width direction of the base 10 using the correction cylinder, the displacement of the bridge segment 200 at the top of the lifting cylinder along the width direction of the bridge is adjusted.

[0054] Furthermore, in this embodiment, the first correction cylinder 24 of the first movable jacking mechanism 20 and the second correction cylinder 34 of the second movable jacking mechanism 30 are located on the same side of the base 10 to facilitate correction of the first lifting cylinder 21 and the second lifting cylinder 31, thereby improving operational convenience. In other embodiments of this disclosure, when two or more movable jacking mechanisms are provided, two or more correction cylinders are located on the same side of the base 10.

[0055] In some embodiments of this disclosure, the movable jacking mechanism further includes a jacking displacement sensor. The jacking displacement sensor is disposed on the jacking cylinder; specifically, it is located on the outer wall of the fixed end of the jacking cylinder. The jacking displacement sensor is used to sense the rising distance of the jacking cylinder. By sensing the rising or falling displacement of the jacking cylinder through the jacking displacement sensor, the sensor transmits the displacement data of the telescopic end of the jacking cylinder to a computer in real time, allowing the computer to precisely control the lifting and lowering values ​​of the jacking cylinder.

[0056] In some embodiments of this disclosure, the movable jacking mechanism further includes a horizontal displacement sensor, which is disposed on the outer wall of the translation box. Specifically, the horizontal displacement sensor is used to sense the moving distance of the translation cylinder. By sensing the displacement of the translation box along the length direction of the base 10, that is, by sensing the displacement of the lifting cylinder in the translation box along the length direction of the base 10, the horizontal displacement sensor transmits the displacement data of the lifting cylinder along the length direction of the base 10 to the computer in real time, and the computer accurately controls the amount of displacement of the lifting cylinder along the length direction of the base 10.

[0057] In some embodiments of this disclosure, the movable jacking mechanism further includes a correction displacement sensor, which is disposed on the correction cylinder. Specifically, the correction displacement sensor is disposed on the outer wall of the fixed part of the correction cylinder, and is used to sense the adjustment distance of the correction cylinder. The correction displacement sensor senses the displacement of the lifting cylinder along the width direction of the base 10, and transmits the displacement of the lifting cylinder along the width direction of the base 10 to the computer in real time. The computer then precisely controls the displacement of the lifting cylinder along the width direction of the base 10.

[0058] A second aspect of this disclosure provides a bridge jacking support method, which is implemented according to the bridge jacking support device 100 described in any of the above embodiments. The bridge jacking support method includes the following steps:

[0059] S10: Construct multiple bridge piers, set up temporary supports 300 between two adjacent bridge piers, and set up bridge jacking support devices 100 on the temporary supports 300.

[0060] S30: A temporary support platform is set up at one end of the overall structure of multiple piers, and a bridge jacking support device 100 is set up on the temporary support platform.

[0061] S50: At least two movable jacking mechanisms of the bridge jacking support device 100 located on the temporary support platform jacking bridge section 200 sequentially and alternately jacking the bridge section 200 to the top of the pier.

[0062] S70: At least two movable jacking mechanisms of the bridge jacking support device 100 located on the temporary pier 300 and at least two movable jacking mechanisms of the bridge jacking support device 100 located on the pier alternately jacking the bridge segment 200 until the bridge segment 200 moves to the target position.

[0063] According to the bridge jacking support method disclosed herein, a bridge segment 200 can be transported to a position above the bridge segment 200 via at least two movable jacking mechanisms of the bridge jacking support device 100 on a temporary support platform, and can be transported to a target position via at least two movable jacking mechanisms of the bridge jacking support device 100 located on a temporary pier 300 and at least two movable jacking mechanisms of the bridge jacking support device 100 on the pier. Specifically, at least two movable jacking mechanisms of each bridge jacking support device 100 can transport the bridge segment 200, thereby improving the transport efficiency of the bridge jacking support device 100 and thus improving the overall bridge installation efficiency.

[0064] S10: Construct multiple bridge piers, set up temporary supports 300 between two adjacent bridge piers, and set up bridge jacking support devices 100 on the bridge piers and temporary supports 300 respectively.

[0065] Multiple bridge piers are constructed according to the construction drawings. Temporary supports 300 are set between two adjacent bridge piers according to the distance between the bridge piers. Bridge jacking support devices 100 are set on the temporary supports 300 and on the bridge piers. Specifically, the number of bridge jacking support devices 100 on the temporary supports 300 and the number of bridge jacking support devices 100 on the bridge piers are determined according to the weight of the bridge section 200.

[0066] S30: A temporary support platform is set up at one end of the overall structure of multiple piers, and a bridge jacking support device 100 is set up on the temporary support platform.

[0067] In suitable locations throughout the bridge construction section, on areas rigorously hardened according to the engineering geological report, a temporary support platform is constructed using steel components (such as D219 steel pipes). Specifically, the temporary support platform is positioned at one end of an integral structure composed of multiple piers to transport bridge segment 200 to the top of the piers for crucial support. Further, support beams are installed on the temporary support platform, and bridge jacking support devices 100 are placed beneath the support beams. Steel box girders are assembled and welded in a segmented sequence from left to right or right to left, with the cantilever section welded last.

[0068] Step S50 includes the following steps:

[0069] S40: Divide the bridge into multiple bridge segments 200.

[0070] The bridge structure design drawings are further refined, taking into account structural characteristics and factors such as production, installation, and transportation. The entire bridge is disassembled into smaller components, which are then manufactured in batches in the workshop according to the order of installation. After passing inspection, the components are transported to the construction site. Before transportation, the site is notified in advance to leave a storage area for the steel components. Once the steel components are transported to the site, they are handed over and inspected. They are then placed in the designated locations for the corresponding bridge sections in the order that is convenient for installation.

[0071] S50: At least two movable jacking mechanisms of the bridge jacking support device 100 located on the temporary support platform alternately jack the bridge section 200 to the top of the pier.

[0072] After the steel box girder is assembled and welded, the bridge segment 200 is transported by the bridge jacking support device 100. Specifically, when the bridge jacking support device 100 includes two movable jacking mechanisms, the first movable jacking mechanism 20 moves in the opposite direction to the bridge segment 200 to a first limit position (e.g., Figure 2 As shown), the first movable jacking mechanism 20 then lifts the bridge section 200 and moves it forward to the second extreme position of the first movable jacking mechanism 200 (as shown). Figure 3 As shown), at this time, the second movable jacking mechanism 30 moves in the opposite direction to the bridge section 200 to the third limit position (as shown). Figure 4 As shown), the telescopic end of the second movable jacking mechanism 30 rises and lifts the bridge section 200, while the first movable jacking mechanism 20 descends and returns to its first extreme position (as shown). Figure 5 As shown), the second movable jacking mechanism drives the bridge segment 200 to continue moving forward to the fourth limit position of the second movable jacking mechanism 30 (as shown). Figure 5(As shown), then the first movable jacking mechanism 20 pushes the bridge section 200 again at the first extreme position, and the second movable jacking mechanism 30 descends (as shown). Figure 6 As shown), the first movable jacking mechanism 20 pushes the bridge section 200 forward to its second limit position, and the second movable jacking mechanism moves to the third limit position (as shown). Figure 7 As shown, the bridge segment 200 is pushed forward cyclically by the first movable jacking mechanism 20 and the second movable jacking mechanism until the bridge jacking support device 100 can no longer push the bridge segment 200 forward. At this point, the bridge jacking support device 100 has completed its work of transporting the bridge segment 200. The remaining bridge jacking support devices 100, arranged along the length of the bridge on the temporary support platform, transport the bridge segment 200 in sequence until it is transported to the top of the pier.

[0073] When the bridge jacking support device 100 includes two or more movable jacking mechanisms, the first movable jacking mechanism 20 moves in the opposite direction to the bridge segment 200 to a first extreme position. Then, the first movable jacking mechanism 20 lifts the bridge segment 200 and moves it forward to a second extreme position. At this time, the second movable jacking mechanism 30 moves in the opposite direction to the bridge segment 200 to a third extreme position. The telescopic end of the second movable jacking mechanism 30 rises and lifts the bridge segment 200, while the first movable jacking mechanism 20 lowers... The bridge section 200 is lowered and returned to the first extreme position. The second movable jacking mechanism 30 drives the bridge section 200 to move to the fourth extreme position. The third movable jacking mechanism, the fourth movable jacking mechanism, ... the Nth movable jacking mechanism are arranged in sequence along the forward direction of the bridge section 200. The working process of the first movable jacking mechanism 200 is cycled in sequence. The Nth movable jacking mechanism moves to the Nth extreme position and lifts the bridge section 200. The Nth movable jacking mechanism drives the bridge section 200 to move to the 2Nth extreme position. The bridge top support device has completed at least part of the conveying work of the bridge section 200.

[0074] It should be noted that the Nth limit position and the 2Nth limit position are the two end limit positions of the Nth movable jacking mechanism along the moving direction of the bridge segment 200. The 2Nth limit position is located in front of the Nth limit position along the forward direction of the bridge segment 200.

[0075] After the first bridge segment 200 is removed from the temporary support platform, the welding and assembly of the second bridge segment 200 begins, and so on, until all bridge segments are welded and assembled and pushed to their corresponding installation positions.

[0076] After each bridge segment 200 has been pushed and moved a certain distance, it is necessary to perform a correction check on the bridge segment 200. Only after the correction check indicators are qualified can it continue to be pushed forward.

[0077] When multiple bridge jacking support devices 100 are installed on the temporary formwork platform, the multiple bridge jacking support devices 100 sequentially transport the bridge segments 200 along the forward direction of the bridge segments 200, thereby transporting the bridge segments 200 to the top of the bridge. When multiple bridge segments 200 need to be transported, the multiple bridge jacking support devices 100 on the temporary formwork platform sequentially transport each bridge segment 200 to the target pier position.

[0078] S70: At least two movable jacking mechanisms of the bridge jacking support device 100 located on the temporary pier 300 and at least two movable jacking mechanisms of the bridge jacking support device 100 located on the pier alternately jacking the bridge segment 200 until the bridge segment 200 moves to the target position.

[0079] The temporary support platform transports bridge segment 200 to the top of the pier. The bridge jacking support device 100 on the pier transports bridge segment 200 forward to the top of the temporary support 300. The bridge jacking support device 100 located on two adjacent piers lifts bridge segment 200 and continues to transport it forward to the top of another adjacent pier. The bridge jacking support device 100 on the pier lifts the bridge and continues to transport the bridge segment 200 forward. The transport of bridge segment 200 above the piers is achieved through the bridge jacking support device 100 set on multiple piers and the bridge jacking device set on multiple temporary support 300.

[0080] When the bridge jacking support device 100 includes at least two movable jacking mechanisms, the first movable jacking mechanism 20 moves in the opposite direction to the bridge segment 200 to a first extreme position. Then, the first movable jacking mechanism 20 lifts the bridge segment 200 and moves it forward to a second extreme position. At this time, the second movable jacking mechanism 30 moves in the opposite direction to the bridge segment 200 to a third extreme position. The telescopic end of the second movable jacking mechanism 30 rises and lifts the bridge segment 200. The first movable jacking mechanism 20 descends and returns to the first extreme position. The second movable jacking mechanism 30 moves the bridge segment 200 to a fourth extreme position. The third movable jacking mechanism and the fourth movable jacking mechanism are arranged sequentially along the forward direction of the bridge segment 200. The Nth movable jacking mechanism sequentially cycles through the working process of the first movable jacking mechanism 20. The Nth movable jacking mechanism moves to the Nth extreme position, lifting the bridge segment 200. The Nth movable jacking mechanism then drives the bridge segment 200 to the 2Nth extreme position. The bridge jacking support device 100 completes at least part of the transport of the bridge segment 200 between the two piers, so that the bridge segment 200 moves to the top of the adjacent pier or the top of the adjacent temporary support 300. The bridge jacking support devices 100 on the multiple temporary supports 300 and the bridge jacking support devices 100 respectively installed on the multiple piers transport the bridge segment 200 sequentially along the forward direction of the bridge segment 200, and finally transport the bridge segment 200 to the target position, completing the transport of the bridge segment 200.

[0081] S80: After each bridge segment 200 is pushed to its target installation position, the final overall grouting of the bridge is carried out. The pier support is installed on the pier of this bridge segment 200. After all procedures are completed, the bridge segment 200 is adjusted to be consistent with the spatial data of the design drawing. Then, the bridge jacking support device 100 on the pier is used to correctly lower the bridge segment 200 onto the pier support, completing the final installation of the bridge segment 200. After all installation processes are completed, the bridge jacking support device 100 and other subsequent work are removed.

[0082] Furthermore, in step S10, a temporary support 300 is placed between two adjacent piers. The bridge jacking support device 100 can be installed on one or both sides of the temporary support. If one side of the temporary support 300 can withstand a series of loads of the bridge section 200 during the jacking process without affecting the pier's own structure and stress, then the device can be installed only on one side of the temporary support 300. Otherwise, the device can be installed on both sides of the temporary support 300.

[0083] Furthermore, after the bridge segment 200 is assembled and welded on the support beam of the temporary frame platform, a certain number of bridge jacking support devices 100 are set below the bridge segment 200 according to its own weight and the stress on various parts. During the bridge assembly, all the jacking cylinders of the bridge jacking support device 100 retract and will not affect the assembly of the bridge segment 200. If the location of the bridge jacking support device 100 will affect the assembly of the bridge segment 200, the device can be installed at the set location after the assembly is completed.

[0084] Furthermore, the assembled bridge segment 200 is moved off the temporary support platform using the bridge jacking support device 100. Sensors on each displacement device of the bridge jacking support device 100 transmit data in real time to the computer of the technician operating the device. The technician sets up a program on the computer, and simultaneously, the same displacement device of multiple bridge jacking support devices 100 jacks and moves the bridge segment 200 at the same frequency and speed, moving it off the temporary support platform. When the bridge segment 200 moves off the temporary support platform on one side and moves above the pier, the sensors on the pier... The first lifting displacement cylinder in the bridge jacking support device 100 will slowly rise to the bottom of the bridge section 200 and receive the bridge section 200 moved out from the temporary frame platform. The remaining bridge jacking support devices 100 that jack the bridge section 200 on the temporary frame platform and the bridge jacking support devices 100 that receive the bridge section 200 on the pier will also be operated by technicians. Multiple bridge jacking support devices 100 will operate at the same frequency, speed and time, and the same displacement device will be operated at the same time to complete the reception and jacking of the bridge section 200 to the installation position of the bridge section 200.

[0085] Furthermore, many factors may arise during the jacking process. For example, the bridge alignment may change in real time. To ensure that the bridge segment 200 can move along the prescribed alignment and be jacked to the correct position, the correction cylinder of the bridge jacking support device 100 can correct the offset of the bridge segment 200 in the lateral direction. During the jacking process, the data information of the bridge segment 200 is transmitted in real time to facilitate timely adjustments by technicians until the calibration is successful. Then, the jacking continues to the next pier and the process is repeated.

[0086] Furthermore, after the bridge segment 200 is pushed to the installation position, adjustments are made to the length, width, and height of the base 10, and then the temporary support 300 is adjusted. Once all data is adjusted to the correct values, the corresponding displacement sensors on the lifting, correction, and translation devices transmit the various data of the bridge segment 200 to the technicians' computers in real time. The technicians then analyze the real-time data and provide timely solutions, which are then input into the computer to control the bridge pushing support device 100 for timely adjustment. Once the various data of the bridge segment 200 reach the standard values, the lifting and correction cylinders retract until the bridge segment 200 is precisely placed on the temporary support 300, and the installation is completed.

[0087] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A bridge jacking support device, characterized in that, The bridge jacking support device includes: a base and at least two sets of movable jacking mechanisms. The base is provided with a slide rail, and the at least two sets of movable jacking mechanisms are slidably connected to the slide rail. The at least two sets of movable jacking mechanisms are arranged at intervals along the length direction of the slide rail. The movable jacking mechanisms are configured to jack the bridge. The active pushing mechanism includes: A sliding housing, which is slidably connected to the top of the base; A lifting cylinder is located inside the translation box and is configured to push the bridge. A translation cylinder is driven and connected to the translation box, and the translation cylinder is configured to push the translation box to move.

2. The bridge jacking support device according to claim 1, characterized in that, The movable pushing mechanism also includes: A correction cylinder, the output end of which is connected to the lifting cylinder, is configured to adjust the movement of the lifting cylinder along the width direction of the base.

3. The bridge jacking support device according to claim 1, characterized in that, The bridge jacking support device includes a first movable jacking mechanism and a second movable jacking mechanism. The first movable jacking mechanism includes a first translation cylinder, which is located on the side of the first movable jacking mechanism away from the second movable jacking mechanism. The second movable jacking mechanism includes a second translation cylinder, which is located on the side of the second movable jacking mechanism away from the first movable jacking mechanism.

4. The bridge jacking support device according to claim 1, characterized in that, The lifting cylinder includes a fixed end and a telescopic end. The fixed end is fixedly connected to the bottom of the translation box, and the telescopic end is movably connected to the fixed end. The telescopic end is configured to extend and retract along the height direction of the bridge.

5. The bridge jacking support device according to claim 2, characterized in that, The bridge jacking support device includes a first movable jacking mechanism and a second movable jacking mechanism. The first movable jacking mechanism includes a first correction cylinder, and the second movable jacking mechanism includes a second correction cylinder. The first correction cylinder and the second correction cylinder are located on the same side of the base.

6. The bridge jacking support device according to claim 2, characterized in that, The movable pushing mechanism also includes: A lifting displacement sensor is installed on the lifting cylinder and is used to sense the lifting distance of the lifting cylinder. A horizontal displacement sensor is provided on the translation cylinder, and the horizontal displacement sensor is used to sense the moving distance of the translation cylinder; A correction displacement sensor is provided on the correction cylinder, and the correction displacement sensor is used to sense the adjustment distance of the correction cylinder.

7. The bridge jacking support device according to claim 1, characterized in that, The slide rail includes a first slide groove and a second slide groove, which are arranged at intervals along the length of the base. The bridge jacking support device includes two sets of movable jacking mechanisms, which are slidably connected to the first slide groove and the second slide groove, respectively.

8. The bridge jacking support device according to claim 7, characterized in that, The first slide groove and the second slide groove have the same structure and the same size.

9. The bridge jacking support device according to claim 8, characterized in that, Along the length of the base, the two sides of the first slide groove are flush with the two sides of the second slide groove.

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