Railway box girder transverse moving supporting frame

Abstract

The utility model belongs to the technical field of transverse movement of box girders, and particularly relates to a transverse movement supporting frame for a railway box girder. The supporting frame comprises a transverse moving support system and a sliding lifting system. A box girder cast-in-place station is arranged on the side, away from the existing high-speed rail line, of the pier column. The transverse moving support system comprises a transverse moving foundation and steel pipe supports, the steel pipe supports are arranged above the cast-in-place foundation, two rows of steel pipe supports are arranged between two adjacent pier columns, and each row of steel pipe supports are arranged close to the pier columns; a sliding lifting system is supported on each row of steel pipe supports and extends to the side, close to an existing high-speed rail line, of the pier column from the bottom of the box girder cast-in-place station. The sliding lifting system comprises a bearing cross beam and a sliding way, a plurality of lifting mechanisms are arranged between the bearing cross beam and the sliding way, the sliding way is driven by the lifting mechanisms to conduct displacement motion in the vertical direction relative to the bearing cross beam, and the cast-in-place box girder falls on the top of the pier column. The operation of the existing high-speed rail line is not influenced by the box girder construction, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of box girder transverse movement, and in particular relates to a railway box girder transverse movement support frame. Background Art

[0002] Most of my country's high-speed railways are based on bridges. High-speed railways are laid on elevated bridges. When building elevated bridges, there will be situations where existing high-speed railway lines intersect or are very close to existing high-speed railway lines. At this time, when constructing elevated bridges, there will be problems with the mutual influence between bridge construction and the operation of existing high-speed railway lines.

[0003] In the existing technology, the operation of high-speed rail lines is generally suspended and elevated bridges are quickly constructed; however, the suspension of the operation of existing high-speed rail lines will seriously affect the normal traffic of the existing high-speed rail lines, which not only has poor economic effects, but also has a bad impact on the people in this section taking the high-speed rail.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a railway box girder transverse support frame to at least solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A railway box girder transverse support frame, the support frame comprising a transverse support system and a sliding lifting system; a box girder cast-in-place station is arranged on the side of the pier away from the existing high-speed railway line, and the box girder construction operation is carried out at the box girder cast-in-place station;

[0008] The transverse support system includes a transverse foundation and a steel pipe support. The steel pipe support is arranged above the cast-in-place foundation. Two rows of steel pipe supports are arranged between two adjacent piers, and each row of steel pipe supports is arranged close to the pier.

[0009] Each row of steel pipe supports is supported by a sliding lifting system, which extends from the bottom of the cast-in-place box beam station to the side of the pier column close to the existing high-speed railway line;

[0010] The sliding lifting system is used to drive the cast-in-place box girder to move from the box girder cast-in-place station to the top of the pier;

[0011] The sliding lifting system includes a load-bearing beam and a slideway. Multiple lifting mechanisms are arranged between the load-bearing beam and the slideway. The lifting mechanisms drive the slideway to move vertically relative to the load-bearing beam, so that the cast-in-place box beam falls on the top of the pier.

[0012] The transverse translation support frame for railway box girders as described above. Preferably, a sliding shoe is slidably arranged on the slideway, and the sliding shoe serves as a part of the bottom formwork in the cast-in-place formwork of the box girder, and the sliding shoe directly abuts against the bottom of the cast-in-place box girder; a reaction seat is arranged on one side of the slideway close to the existing high-speed railway line, and the reaction seat is connected with a steel strand;

[0013] A relief hole is arranged on the sliding shoe, the steel strand penetrates through the relief hole on the sliding shoe, and a continuous jack is arranged on the side of the sliding shoe away from the existing high-speed railway line, and the continuous jack is connected with the steel strand.

[0014] The transverse translation support frame for railway box girders as described above. Preferably, a plurality of guide rods are further arranged on the load-bearing cross beam, guide holes are arranged on the slideway, and the guide rods extend into the guide holes on the slideway, and the slideway moves along the guide rods for guiding.

[0015] The transverse translation support frame for railway box girders as described above. Preferably, a spring is sleeved outside the guide rod.

[0016] The transverse translation support frame for railway box girders as described above. Preferably, each row of steel pipe supports includes a plurality of steel pipe groups arranged in parallel, and each steel pipe group includes at least two steel pipes.

[0017] The transverse translation support frame for railway box girders as described above. Preferably, a distribution beam is arranged on each steel pipe group, the load-bearing cross beam is supported on the distribution beam, and each distribution beam is perpendicular to the load-bearing cross beam.

[0018] The transverse translation support frame for railway box girders as described above. Preferably, a plurality of transverse connecting rods are arranged between adjacent steel pipes in each steel pipe group.

[0019] The transverse translation support frame for railway box girders as described above. Preferably, a plurality of Z-shaped connecting systems are arranged between adjacent steel pipe groups.

[0020] The transverse translation support frame for railway box girders as described above. Preferably, a plurality of pier body embedded parts are arranged on the pier column in the vertical direction, and an armrest is connected between the steel pipe group close to the pier column and the pier body embedded part on the pier column.

[0021] Beneficial effects:

[0022] In this support frame, the box girder casting construction operation is completed on the side of the pier away from the existing high-speed railway line, ensuring that the construction of the cast-in-place box girder and the operation of the existing high-speed railway line do not affect each other; after the box girder construction is completed, the box girder is moved horizontally from the box girder cast-in-place station on the side away from the existing high-speed railway line to the top of the pier, and then the slide and the box girder are directly driven to fall synchronously through the lifting mechanism, which not only ensures the stability of the box girder falling operation, but also greatly improves the box girder falling efficiency; the entire process is completed on the side away from the existing high-speed railway line; that is, on this support frame, the entire construction, horizontal movement, and falling process of the box girder will not affect the operation of the existing high-speed railway line, and also improves the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0024] Figure 1 This is a schematic structural diagram of a railway box girder transverse support frame according to an embodiment of the utility model;

[0025] Figure 2 for Figure 1 An enlarged schematic diagram of point A in FIG.

[0026] In the figure: 10, transverse support system; 11, steel pipe group; 12, transverse foundation; 13, distribution beam; 14, Z-shaped connection system;

[0027] 20. Sliding lifting system; 21. Load-bearing beam; 22. Slideway; 23. Sliding shoe; 24. Lifting mechanism; 25. Guide rod; 26. Spring; 27. Steel strand; 28. Continuous jack;

[0028] 100. Piers; 200. Existing high-speed rail lines. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0030] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0032] According to the specific embodiment of the utility model, Figure 1-2 As shown, the utility model provides a railway box girder transverse support frame, the support frame includes a transverse support system 10 and a sliding lifting system 20; a box girder cast-in-place station is arranged on the side of the pier 100 away from the existing high-speed railway line 200, and the box girder construction operation is carried out at the box girder cast-in-place station.

[0033] The transverse support system 10 includes a transverse foundation 12 and a steel pipe support. The steel pipe support is arranged above the cast-in-place foundation. Two rows of steel pipe supports are arranged between two adjacent piers 100 , and each row of steel pipe supports is arranged close to the pier 100 .

[0034] Each row of steel pipe supports supports a sliding lifting system 20 , which extends from the bottom of the box girder cast-in-place station to a side of the pier 100 close to the existing high-speed railway line 200 .

[0035] The sliding lifting system 20 is used to drive the cast-in-place box girder to move from the box girder cast-in-place station to the top of the pier 100 .

[0036] The sliding lifting system 20 includes a load-bearing beam 21 and a slideway 22, and a plurality of lifting mechanisms 24 are arranged between the load-bearing beam 21 and the slideway 22. The lifting mechanisms 24 drive the slideway 22 to move vertically relative to the load-bearing beam 21, so that the cast-in-place box beam falls on the top of the pier 100. In this embodiment, the lifting mechanism 24 can be a hydraulic jack; when the cast-in-place box beam moves to the top of the pier 100, the plurality of lifting mechanisms 24 are controlled to move synchronously, so that the slideway 22 descends relative to the load-bearing beam 21, so that the cast-in-place box beam falls on the pier 100.

[0037] A sliding shoe 23 is slidably arranged on the slideway. The sliding shoe 23 serves as a part of the bottom formwork in the cast-in-place box girder formwork. The sliding shoe 23 directly presses against the bottom of the cast-in-place box girder. A reaction seat is arranged on the side of the slideway close to the existing high-speed railway line, and a steel strand 27 is connected to the reaction seat. A clearance hole is arranged on the sliding shoe 23, and the steel strand 27 passes through the clearance hole on the sliding shoe 23. A continuous jack 28 is arranged on the side of the sliding shoe 23 away from the existing high-speed railway line, and the continuous jack 28 is connected to the steel strand 27.

[0038] In one embodiment of the present application, after the construction of the cast-in-place box girder is completed, the cast-in-place formwork of the box girder is removed, so that the two sliding shoes 23 are respectively supported on both sides of the cast-in-place box girder, and the two continuous jacks 28 are controlled to operate synchronously. The continuous jacks 28 push the sliding shoes 23 to move toward the reaction seat, so that the sliding shoes 23 drive the cast-in-place box girder to move above the pier 100.

[0039] In this embodiment, the number of the lifting mechanisms 24 is increased or decreased according to the span (ie, length) of the slideway 22. When the span of the slideway 22 is large, the number of the lifting mechanisms 24 is increased to better support the slideway 22.

[0040] In the box girder transverse movement support frame, a box girder cast-in-place station is set on the side of the pier 100 away from the existing high-speed railway line 200, and the box girder is cast at the box girder cast-in-place station to complete the construction work of the cast-in-place box girder; then the sliding lifting system 20 drives the cast-in-place box girder from the box girder cast-in-place station to the top of the pier 100; after the box girder is transversely moved into place, the lifting mechanism 24 is controlled to descend, so that the slide 22 drives the cast-in-place box girder to fall until the cast-in-place box girder falls on the pier 100.

[0041] The entire process is completed on the side away from the existing high-speed railway line 200, wherein the box girder casting construction operation is completed on the side of the pier 100 away from the existing high-speed railway line 200, ensuring that the construction of the cast-in-place box girder and the operation of the existing high-speed railway line 200 do not affect each other; after the box girder construction is completed, the box girder is moved horizontally from the box girder cast-in-place station away from the side of the existing high-speed railway line 200 to the top of the pier 100, and then the slide 22 is directly driven by the lifting mechanism 24 to fall synchronously with the box girder, which not only ensures the stability of the box girder falling operation, but also greatly improves the box girder falling efficiency; that is, on the support frame, the entire construction, horizontal movement, and falling process of the box girder will not affect the operation of the existing high-speed railway line 200, but also improves the construction efficiency.

[0042] A plurality of guide rods 25 are also provided on the load-bearing crossbeam 21, and a guide hole is provided on the slideway 22. The guide rods 25 extend into the guide hole on the slideway 22, and the slideway 22 moves along the guide rods 25. A spring 26 is sleeved around the outer periphery of the guide rods 25.

[0043] In one embodiment of the present application, during the descent of the slide 22, the slide 22 is guided and moved along the guide rod 25, so that the slide 22 can descend stably; at the same time, a spring 26 is sleeved on the outer periphery of the guide rod 25, and the spring 26 can evenly bear the pressure between the slide 22 and the load-bearing beam 21, thereby ensuring the stability of the slide 22 during descent, thereby greatly improving the safety of the cast-in-place box girder descent process.

[0044] Each row of steel pipe supports includes a plurality of steel pipe groups 11 arranged in parallel, and the steel pipe group 11 includes at least two steel pipes.

[0045] In one embodiment of the present application, the bottom of the steel pipe is connected to the transverse foundation 12 through an embedded part. The bottom of the steel pipe is connected to the embedded part by welding. The existing cap embedded part is installed using an inverted cone adhesive anchor bolt.

[0046] A distribution beam 13 is disposed on each steel pipe group 11 . A load-bearing cross beam 21 is supported on the distribution beam 13 , and each distribution beam 13 is perpendicular to the load-bearing cross beam 21 .

[0047] In one embodiment of the present application, each steel pipe group 11 forms a complete supporting structure with a distribution beam 13 , and a plurality of distribution beams 13 are evenly distributed below the load-bearing crossbeam 21 to provide load-bearing support for the load-bearing crossbeam 21 .

[0048] In each steel pipe group 11, a plurality of transverse connecting rods are arranged between adjacent steel pipes. In one embodiment of the present application, the transverse connecting rods between the steel pipes are made of [20a channel steel and are welded to the steel pipe column through a corbel, and each steel pipe in the steel pipe group 11 is connected together through the transverse connecting rods.

[0049] A plurality of Z-shaped connection systems 14 are arranged between adjacent steel pipe groups 11. Each adjacent steel pipe group 11 is connected by the Z-shaped connection system 14, and two triangular reinforcement structures are formed between each Z-shaped connection system 14 and the steel pipe, which not only connects the plurality of steel pipe groups 11 into a whole, but also greatly improves the structural strength of the overall steel pipe group 11, so that it has better supporting capacity.

[0050] A plurality of pier body embedded parts are arranged on the pier column 100 along the vertical direction, and a support arm is connected between the steel pipe group 11 close to the pier column 100 and the pier body embedded parts on the pier column 100 .

[0051] In one embodiment of the present application, the armrest is made of 20a channel steel and is welded to the steel pipe column and the pier body embedded parts through the bracket. The steel pipe group 11 is connected to the pier column 100 through the armrest, so that the steel pipe group 11 and the pier column 100 can be connected as a whole, thereby improving the stability of the steel pipe group 11 and further improving the supporting capacity of the lateral support system 10.

[0052] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A railway box girder transverse support frame, characterized in that: The support frame includes a transverse support system and a sliding lifting system; a box girder cast-in-place station is set on the side of the pier away from the existing high-speed railway line, and the box girder construction operation is carried out at the box girder cast-in-place station; The transverse support system includes a transverse foundation and a steel pipe support. The steel pipe support is arranged above the cast-in-place foundation. Two rows of steel pipe supports are arranged between two adjacent piers, and each row of steel pipe supports is arranged close to the pier. Each row of steel pipe supports is supported by a sliding lifting system, which extends from the bottom of the cast-in-place box beam station to the side of the pier column close to the existing high-speed railway line; The sliding lifting system is used to drive the cast-in-place box girder to move from the box girder cast-in-place station to the top of the pier; The sliding lifting system includes a load-bearing beam and a slideway. Multiple lifting mechanisms are arranged between the load-bearing beam and the slideway. The lifting mechanisms drive the slideway to move vertically relative to the load-bearing beam, so that the cast-in-place box beam falls on the top of the pier.

2. The railway box girder transverse support frame according to claim 1, characterized in that: A sliding shoe is slidably arranged on the slideway, and the sliding shoe serves as a part of the bottom mold in the cast-in-place box beam template, and the sliding shoe directly presses against the bottom of the cast-in-place box beam; a reaction seat is arranged on the side of the slideway close to the existing high-speed railway line, and the reaction seat is connected to a steel strand; The sliding shoe is provided with a clearance hole, and the steel strand passes through the clearance hole on the sliding shoe. A continuous jack is provided on the side of the sliding shoe away from the existing high-speed railway line, and the continuous jack is connected to the steel strand.

3. The railway box girder transverse support frame according to claim 2, characterized in that: A plurality of guide rods are also arranged on the load-bearing crossbeam, and guide holes are arranged on the slideway. The guide rods extend into the guide holes on the slideway, and the slideway moves along the guide rods.

4. The railway box girder transverse support frame according to claim 3, characterized in that: The outer periphery of the guide rod is covered with a spring.

5. The railway box girder transverse support frame according to claim 1, characterized in that: Each row of steel pipe supports includes a plurality of steel pipe groups arranged in parallel, and each steel pipe group includes at least two steel pipes.

6. The railway box girder transverse support frame according to claim 5, characterized in that: A distribution beam is arranged on each steel pipe group, a load-bearing crossbeam is supported on the distribution beam, and each distribution beam is perpendicular to the load-bearing crossbeam.

7. The railway box girder transverse support frame according to claim 6, characterized in that: In each steel tube group, a plurality of transverse connecting rods are arranged between adjacent steel tubes.

8. The railway box girder transverse support frame according to claim 7, characterized in that: A plurality of Z-shaped connection systems are arranged between adjacent steel pipe groups.

9. The railway box girder transverse support frame according to claim 7, characterized in that: A plurality of pier body embedded parts are arranged on the pier column along the vertical direction, and a support arm is connected between the steel pipe group close to the pier column and the pier body embedded parts on the pier column.

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