A transverse sliding device for water bridge

Abstract

The application discloses a transverse sliding device for water bridge erection, which comprises a sliding track assembly and a pushing assembly. The sliding track assembly comprises at least one set of sliding track beams arranged in parallel and a sliding block which can slide on the sliding track beams. The pushing assembly comprises a counterforce frame arranged on the sliding track beams and a hydraulic jack connected with the counterforce frame. The piston end of the hydraulic jack acts on the sliding block to drive the sliding block to move transversely along the sliding track beams. The application has the effects of improving the convenience and accuracy of water bridge steel beam installation.

Description

Technical Field

[0001] This application relates to the field of bridge erection technology, and in particular to a lateral sliding device for bridge erection. Background Technology

[0002] The construction of bridges over water has long faced numerous technical challenges. For example, the construction of work platforms is costly, the precise positioning of large components on water is difficult, and construction can conflict with waterway traffic. In particular, existing methods are often restricted by strict regulations on flood control, navigation, and ecological protection, especially in the installation of large components.

[0003] There are two main methods for constructing bridges over water using existing technologies: Firstly, the steel beams are placed in the predetermined positions using an ultra-long bridge erecting machine. However, the ultra-long bridge erecting machine requires support points to be set on the steel beams that are not yet integrated, which makes it difficult to guarantee the overall stability of the structure and poses a construction safety risk. Secondly, floating cranes are used to lift steel beams and place them in designated locations. However, the load capacity of floating cranes for lifting steel beams is limited, and the range of locations where steel beams can be placed is very limited for the construction of water bridges with multiple road sections.

[0004] To meet the requirements for temporary underwater supports, comply with water conservancy and waterway regulations, and ensure the safety of floating crane operations and the integrity of the steel beam structure, the steel beams are practically divided into modular segments for hoisting using a floating crane vessel. Specifically, a navigation channel is reserved in the middle of the bridge, and the steel beams are assembled in segments at the pier areas on both sides of the channel. However, while this segmented assembly method alleviates the load-bearing limitations of the floating crane vessel to some extent, the precise placement of the hoisted segments is still greatly restricted by the operating range of the floating crane vessel and the water conditions. Therefore, existing technologies still have significant room for improvement in achieving efficient, flexible, and compliant large-scale steel beam erection on water. Utility Model Content

[0005] This application proposes a lateral sliding device for building bridges over water, which aims to improve the convenience and accuracy of installing steel beams for bridges over water.

[0006] Specifically, the floating crane vessel only needs to lift the steel beam segments to their accessible positions. Workers then weld and assemble the segments to form a complete span of steel beam. Finally, the lateral sliding device slides the entire span of steel beam laterally to the designed bridge location. By repeating this process, each span of steel beam can be installed in its designated position sequentially.

[0007] The lateral sliding device for building bridges over water provided in this application adopts the following technical solution: A lateral sliding device for building bridges over water includes a sliding track assembly and a pushing assembly. The sliding track assembly includes at least one set of parallel sliding track beams and a slider that can slide on the sliding track beams. The pushing assembly includes a reaction frame disposed on the sliding track beams and a hydraulic jack connected to the reaction frame. The piston end of the hydraulic jack acts on the slider, driving the slider to move laterally along the sliding track beams.

[0008] Using the above technical solution, the user first installs the sliding assembly horizontally on the bridge pier. Then, a floating crane is used to transport the assembled segments sequentially to the bridge pier and temporary support, ensuring that the assembled segments at both ends are precisely positioned on the sliders of the parallel sliding beam. Subsequently, the assembled segments are welded to form a complete steel beam. Afterward, the sliders are pushed by the extension and retraction of hydraulic jacks, causing the steel beam to move laterally along the sliding beam. During this process, the beam segments are simultaneously adjusted and corrected at fixed points until the steel beam slides to the predetermined installation position. This allows the floating crane to be unrestricted by operating range and water conditions, enabling the fixed-point welding and assembly stage. The steel beam is precisely transported to the predetermined placement position using a transverse sliding device for bridge construction on the water. This not only reduces the time the floating crane needs to constantly adjust to adapt to the lifting and placement position, but also helps ensure the accuracy of the steel beam's position using specialized pushing components, thereby improving the convenience and accuracy of steel beam installation for bridges on water.

[0009] Preferably, the piston end of the hydraulic jack is provided with a push pad.

[0010] By adopting the above technical solution, on the one hand, the jacking pad can increase the contact area between the hydraulic jack and the slider, reducing the pressure on the slider; on the other hand, it can increase the jacking distance that a hydraulic jack can push, making it easier to adjust the integer matching between the sliding distance of the steel beam and the hydraulic jack.

[0011] Preferably, the reaction frame includes a base plate, a first vertical plate and a second vertical plate arranged symmetrically, and a horizontal plate connecting the side ends of the first vertical plate and the second vertical plate.

[0012] By adopting the above technical solution, the reaction frame cooperates with the slide beam through the base plate and with the hydraulic jack through the horizontal plate. When the hydraulic jack slides laterally along the slide beam, the horizontal plate supplies it with the recoil force, while the first vertical plate and the second vertical plate support the stability of the horizontal plate.

[0013] Preferably, the pushing assembly further includes a pump station and a PLC synchronous control system, wherein the PLC synchronous control system controls the pump station to synchronously supply oil to each hydraulic jack.

[0014] By adopting the above technical solution, the PLC synchronous control system controls the pump station, and the pump station outputs hydraulic oil to synchronously control two or more hydraulic jacks. The hydraulic jacks then feed back signals to the PLC synchronous control system to achieve synchronous pushing.

[0015] Preferably, the slide beam is an H-beam with reinforcing ribs welded to one side of its web.

[0016] By adopting the above technical solution, the required slide surface of the slide beam can be met, steel plate material can be saved, and the slide beam can have ultra-high strength, ensuring the stability of the slide beam and making it suitable for high-tonnage steel beams.

[0017] Preferably, the reaction frame is detachably fixed to the slide beam by bolts.

[0018] By adopting the above technical solution, in the lateral sliding of the specific slide beam, the lateral sliding distance will exceed the jacking distance of the hydraulic jack. Therefore, the position of the hydraulic jack can be changed by the detachable reaction frame, which facilitates the continuous jacking of the steel beam by the hydraulic jack.

[0019] Preferably, the axial direction of the hydraulic jack is parallel to the extension direction of the slide beam.

[0020] By adopting the above technical solution, the jacking force of the hydraulic jack can be fully utilized.

[0021] Preferably, a clamp is provided on one side of the slide beam.

[0022] By adopting the above technical solution, the slide beam is connected to the support on the bridge pier through the clamp, so that the slide beam can maintain its stability through the clamp connection.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. The user first installs the slide rail assembly horizontally on the bridge pier. Then, using a floating crane, the assembled segments are transported sequentially to the bridge pier and temporary support, ensuring that the assembled segments at both ends are precisely positioned on the sliders of the parallel slide rail beam. Subsequently, the assembled segments are welded to form a complete steel beam. Then, the sliders are pushed by the extension and retraction of hydraulic jacks, causing the steel beam to move laterally along the slide rail beam. During this process, the beam segments are adjusted and corrected at fixed points until the steel beam slides to the predetermined installation position. This allows the floating crane to achieve the fixed-point welding and assembly stage without being limited by the operating range or water conditions. The steel beam is precisely transported to the predetermined placement position using the transverse sliding device for bridge construction on the water. This not only reduces the time that the floating crane needs to constantly adjust to adapt to the lifting and placement position, but also helps to ensure the accuracy of the steel beam position with the specialized pushing component, thereby improving the convenience and accuracy of steel beam installation for bridges on water. 2. The jacking pad can increase the contact area between the hydraulic jack and the slider, reducing the pressure on the slider. On the other hand, it can increase the jacking distance that a hydraulic jack can push, making it easier to adjust the integer matching between the sliding distance of the steel beam and the hydraulic jack. 3. The slide beam is connected to the support on the pier through clamps, so that the slide beam can maintain its stability through the clamp connection. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of part of the lateral sliding device in this embodiment; Figure 2 This is a schematic diagram of the pushing component in this embodiment; Figure 3 This is a schematic diagram of the lateral sliding of the steel beam in this embodiment.

[0025] Reference numerals: 1. Slide assembly; 11. Slide beam; 12. Slider; 13. Reinforcing rib; 14. Clamp; 2. Pushing assembly; 21. Reaction frame; 22. Hydraulic jack; 23. Pushing pad; 3. Pier; 31. Bearing pad; 4. Steel beam. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0027] This application discloses a lateral sliding device for building bridges over water.

[0028] Reference Figures 1-3 It includes a slide assembly 1 and a pushing assembly 2. The slide assembly 1 includes a slide beam 11 and a slider 12. The pushing assembly 2 includes a reaction frame 21 and a hydraulic jack 22.

[0029] In the specific installation of the slide beam 11, the slide beam 11 is placed horizontally on the pier 3 (usually the cap beam under the projection of each beam end), and the slide beam 11 is located close to the edge of the pier 3, so that the user can easily disassemble the slide beam 11 after the steel beam 4 is delivered to the position. The slide beam 11 is a horizontally placed H-shaped steel, which makes the upper and lower surfaces of the slide beam 11 smooth, so that the slide beam 11 can be installed and disassembled without damage, and also makes it easy for the slider 12 to slide freely on the slide beam 11. The pier 3 has an integrally formed support pad stone 31, and a clamp 14 is welded to the side of the slide beam 11 near the support pad stone 31. The clamp 14 is welded around the support pad stone 31 to further ensure the stability of the installation of the slide beam 11.

[0030] The slider 12 is slidably mounted on the slide beam 11, so that the slider 12 can slide freely on the slide beam 11. The slider 12 is used to support the steel beam 4.

[0031] The reaction frame 21 includes a base plate, a first vertical plate and a second vertical plate symmetrically welded to the base plate, and a horizontal plate welded to the side ends of the first vertical plate and the second vertical plate. The base plate is square, and its four corners are detachably bolted to the slide beam 11. One end of the hydraulic jack 22 is bolted to the horizontal plate of the reaction frame 21, and the piston end of the other end is provided with a jacking pad 23. The hydraulic jack 22 is arranged axially parallel to the extension direction of the slide beam 11 in order to fully exert the jacking force.

[0032] In practical use, the user first installs the slide beam 11 horizontally on the pier 3, slides the slider 12 onto the slide beam 11, and applies lubricant to the surface of the slide assembly 1. Then, the user uses a floating crane to transport the assembled segments to the pier 3 and the temporary support in sequence, so that the assembled segments at both ends are exactly located on the slider 12 of the parallel slide beam 11. Subsequently, the assembled segments are welded to form a complete steel beam 4. Next, one or more sliding positioning points are set on the slide rail, so that the steel beam 4 reaches the predetermined position in a planned manner. The user bolts the reaction frame 21 to the slide rail beam 11, and one end of the hydraulic jack 22 is connected to the cross plate, while the other end abuts against the slider 12. This allows the cross plate of the reaction frame 21 to provide recoil force for the hydraulic jack 22, causing the steel beam 4 to slide laterally along the slide rail to the positioning point. If the stroke of the hydraulic jack 22 is insufficient, the pushing distance of the hydraulic jack 22 can be extended by placing a pushing pad 23 at the end of the hydraulic jack 22, thereby realizing the movement of the steel beam 4. The beam 4 is precisely transported to the positioning point, and the jacking pad 23 increases the contact area between the hydraulic jack 22 and the slider 12, reducing the pressure on the slider 12. After reaching the positioning point, the staff adjusts and corrects the steel beam 4 according to the plan to ensure the accuracy of the lateral position and shape of the steel beam 4. Furthermore, for lateral movements of the steel beam 4 that far exceed the stroke of one hydraulic jack 22, the user disassembles the reaction frame 21 and drags its position, ensuring that the steel beam 4 can be continuously pushed by one hydraulic jack 22, thus pushing the steel beam 4 to the predetermined position. In this way, the floating crane is not limited by operating range or water conditions, and can achieve the fixed-point welding and assembly stage, precisely transporting the steel beam 4 to the predetermined placement position using a lateral sliding device for water-based bridge construction. This not only reduces the time the floating crane needs to constantly adjust to adapt to the lifting and placement position, but the specialized pushing component 2 also helps ensure the accuracy of the steel beam 4's position, thereby improving the convenience and accuracy of the installation of the steel beam 4 for water-based bridges.

[0033] Furthermore, in this embodiment, the pushing component 2 also includes a pump station and a PLC synchronous control system. The PLC synchronous control system is electrically connected to the pump station and two or more hydraulic jacks. The pump station and the hydraulic jacks are connected by hydraulic pipelines, so that the PLC synchronous control system controls the pump station to synchronously supply oil to the hydraulic jacks 22 on each slide beam 11. That is, the PLC synchronous control system controls the pump station, and the pump station outputs hydraulic oil to synchronously control two or more hydraulic jacks 22. The hydraulic jacks 22 then feed back the signal to the PLC synchronous control system, so as to realize that the PLC synchronous control system controls two or more hydraulic jacks to push synchronously, so that the steel beam 4 slides synchronously at both ends on the paired slide beams.

[0034] Furthermore, in this embodiment, the slide beam 11 is an H-beam with a reinforcing rib 13 welded to the side near the support pad 31. This satisfies the slide surface required by the slide beam 11, saves steel plate material, and at the same time gives the slide beam 11 extremely high strength, ensuring the stability of the slide beam 11 and making it suitable for high-tonnage steel beams 4.

[0035] Furthermore, in this embodiment, a work basket is welded to the side of the slide beam 11 away from the support pad 31. The work basket is a carrying pole type manual work platform, which facilitates the arrangement of the reaction frame 21 for lateral sliding and the auxiliary beam lowering, and provides a plane for dismantling the slide beam 11.

[0036] The work basket is a cantilevered work basket made of I-beams. The bottom of the basket is covered with patterned steel plates, and square steel guardrails, dense mesh netting and kick plates are arranged around it. The root of the cantilever is welded to the web plate of the slide beam 11.

[0037] Furthermore, in this embodiment, the present invention does not impose any particular limitation on the detachable connection method between the reaction frame 21 and the slide beam 11. Any method known to those skilled in the art that enables the detachable connection between the reaction frame 21 and the slide beam 11 can be used. Those skilled in the art can select and adjust the method according to the specific application, raw material conditions and product requirements.

[0038] Furthermore, in this embodiment, the present invention does not particularly limit the sliding method of the slider 12 and the slide beam 11. Any method known to those skilled in the art that can achieve the sliding function of the slider 12 and the slide beam 11 is acceptable. Those skilled in the art can select and adjust according to specific application conditions, raw material conditions, and product requirements. Preferably, the slider 12 is placed directly on the slide beam 11, and the steel beam 4 is placed directly on the slider 12. Under the weight of the steel beam 4, the friction between the slider 12 and the slide beam 11 is relatively large, and the slider 12 is generally difficult to move when the hydraulic jack 22 is not pushing. More preferably, the slider 12 and the slide beam 11 are slidably engaged through a groove.

[0039] Furthermore, in this embodiment, the reaction frame 21 is made of steel plates with a thickness of 15-25mm; when the thickness of the reaction frame 21 is 20mm, the maximum deformation of the reaction frame 21 is 0mm when transporting a steel beam 4 weighing up to 130 tons; and the maximum reaction force is 16 tons.

[0040] It should be noted that the various embodiments of this application can be arbitrarily combined into new embodiments, provided that the solutions do not conflict and the technical solutions can coexist.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lateral sliding device for building bridges over water, characterized in that: The slide assembly includes a slide rail assembly (1) and a push assembly (2). The slide rail assembly (1) includes at least one set of parallel slide rail beams (11) and a slider (12) that can slide on the slide rail beams (11). The push assembly (2) includes a reaction frame (21) on the slide rail beams (11) and a hydraulic jack (22) connected to the reaction frame (21). The piston end of the hydraulic jack (22) acts on the slider (12) to drive the slider (12) to move laterally along the slide rail beams (11). The reaction frame (21) is detachably fixed to the slide rail beams (11) by bolts. A clamp (14) is provided on one side of the slide rail beams (11).

2. The lateral sliding device for building bridges over water according to claim 1, characterized in that: The piston end of the hydraulic jack (22) is provided with a push pad (23).

3. The lateral sliding device for building bridges over water according to claim 1, characterized in that: The reaction frame (21) includes a base plate, a first vertical plate and a second vertical plate arranged symmetrically, and a horizontal plate connecting the side ends of the first vertical plate and the second vertical plate.

4. The lateral sliding device for building bridges over water according to claim 1, characterized in that: The pushing assembly (2) also includes a pump station and a PLC synchronous control system, wherein the PLC synchronous control system controls the pump station to synchronously supply oil to each hydraulic jack (22).

5. The lateral sliding device for building bridges over water according to claim 1, characterized in that: The slide beam (11) is an H-beam with a reinforcing rib (13) welded to one side of its web.

6. The lateral sliding device for building bridges over water according to claim 1, characterized in that: The axial direction of the hydraulic jack (22) is parallel to the extension direction of the slide beam (11).

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