Steel box arch rib integral lifting support structure

Abstract

The utility model relates to an integral lifting support structure for a steel box arch rib. The structure mainly comprises an original pushing buttress pipe pile, a lifting station pipe pile, a bearing platform, a steel box girder, a preformed hole, a flange plate, a lifting steel pipe support, a steel pipe stand column, a parallel connection, an inclined support, a sleeper beam, a cross beam, a longitudinal beam, a jack, a steel wire rope, a steel box arch rib, a connecting hoop, an embedded anchor rod, a flange plate, a rib plate, an insertion section, a steel sleeve, a preformed hole reinforcing body, an ejector rod, foam concrete, an upper embedded steel plate and a lower embedded steel plate. The steel box girder comprises a steel box girder top plate, a steel box girder bottom plate, core pipes, connecting rods, vertical rods and the like. According to the steel box arch rib integral lifting support structure, the steel pipe stand column tower-shaped support, the steel pipe stand column fixing structure of the reinforced concrete bearing platform and the steel pipe pile penetrating steel box girder reinforcing structure are adopted, the system is reasonable in design, the bearing capacity and construction efficiency of the lifting support are improved, and construction cost is reduced; and good technical and economic benefits can be obtained when the method is applied to practical engineering.

Description

Technical Field

[0001] This utility model relates to an integral lifting support structure for steel box arch ribs, which is mainly applicable to the integral lifting of steel box arch rib segments. Background Technology

[0002] With the continuous development of the global economy and the acceleration of urbanization, bridge engineering, as a crucial component of transportation infrastructure, is facing unprecedented challenges and opportunities. The increasing demand for long-span bridges places higher requirements on construction quality, safety, and economy. Traditional construction methods often suffer from long construction periods, high safety risks, and high costs; therefore, exploring new construction methods has become an important issue in the field of bridge engineering. The integral lifting construction of steel box arch ribs involves high-altitude operations and complex hoisting processes, posing significant safety risks. Researching a safe and reliable support system is of great importance for ensuring the personal safety of construction personnel and the smooth progress of the project.

[0003] In summary, the development of the overall lifting support structure for steel box girder arch ribs, through innovations such as steel pipe column supports, reinforced concrete foundation for fixing steel pipe column structures, and steel pipe piles penetrating steel box girders, can ensure the installation efficiency and safety of the overall lifting of steel box girder arch ribs. Utility Model Content

[0004] The purpose of this utility model is to provide a steel box arch rib integral lifting support structure to address the problem of integral lifting and installation of steel box arch rib segments.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This steel box arch rib integral lifting support structure includes: original jacking support pipe piles, steel box girder, flange plate, lifting steel pipe support, steel box arch rib, connecting sleeve, pre-embedded anchor rod, jacking rod, steel box girder top plate, and steel box girder bottom plate;

[0007] The lifting steel pipe support consists of steel pipe columns, horizontal bracing, and diagonal bracing. The steel pipe columns are shared with the original jacking support piles below, and a row of lifting station piles is set on the outer side of each corresponding position.

[0008] The original jacking support pipe pile is equipped with a pile cap at the top, and the original jacking support pipe pile extends into the pile cap to a certain distance. Lifting steel pipe supports are arranged on the pile cap to form a lifting support system composed of multiple steel pipe columns.

[0009] The steel pipe columns located inside the steel box girder have pre-drilled holes at corresponding positions on the steel box girder. The steel pipe columns are extended after passing through the pre-drilled holes. The top of the steel pipe columns is equipped with sleeper beams, cross beams, longitudinal beams, and jacks in sequence. The jacks lift the steel box arch bridge segments spliced ​​by the steel box arch ribs as a whole through steel wire ropes.

[0010] The connecting sleeve consists of a first rib and a steel sleeve. The steel sleeve has a first flange welded to both the upper and lower ends and is provided with a first rib. The connecting sleeve is fixed to the pre-embedded anchor rod through the first flange.

[0011] The steel pipe column at the top of the pier is equipped with a second flange, a second rib, and an insertion section. After the steel pipe column passes through the reserved hole of the steel box girder, the lower insertion section is inserted into the connecting sleeve and fixed by the first flange.

[0012] Furthermore, the steel box girder is provided with a pre-drilled hole reinforcement body, which consists of a core tube, connecting rods, and vertical rods. Connecting rods and vertical rods are symmetrically arranged around the core tube, and the vertical rods and some connecting rods are welded and fixed to the top plate and bottom plate of the steel box girder.

[0013] Furthermore, after the steel pipe support is removed, a lower embedded steel plate is welded to the lower part of the core tube. The lower embedded steel plate is welded to the top rod to form a whole. The core tube is filled with foamed concrete and an upper embedded steel plate is welded to it.

[0014] This utility model has the following features and beneficial effects:

[0015] The steel box girder arch rib integral lifting support structure involved in this utility model adopts a steel pipe column tower-shaped support, a reinforced concrete foundation to fix the steel pipe column structure, and a steel pipe pile through the steel box girder reinforcement structure. This system is reasonably designed, improves the bearing capacity and construction efficiency of the lifting support, reduces construction costs, and can achieve good technical and economic benefits when applied to actual projects. Attached Figure Description

[0016] Figure 1 This is a side elevation diagram of the steel box arch rib integral lifting support structure;

[0017] Figure 2 This is a schematic diagram of the overall lifting support structure for the steel box arch rib;

[0018] Figure 3 This is a schematic diagram of the cross-section of a reinforced concrete foundation with fixed steel pipe columns.

[0019] Figure 4 This is a detailed schematic diagram of the steel pipe column insertion section;

[0020] Figure 5 This is a schematic diagram of the connecting sleeve;

[0021] Figure 6 This is a schematic diagram of the reinforcement section of the reserved hole in the steel box girder;

[0022] Figure 7 This is a schematic diagram of the cross-section of the pre-drilled hole reinforcement.

[0023] Figure 8 This is a schematic diagram of the pre-drilled hole reinforcement.

[0024] In the diagram: 1. Original jacking support pipe pile; 2. Lifting station pipe pile; 3. Pipe cap; 4. Steel box girder; 5. Reserved hole; 6. Flange plate; 7. Lifting steel pipe support; 8. Steel pipe column; 9. Horizontal bracing; 10. Diagonal bracing;

[0025] 11. Pillar beam; 12. Crossbeam; 13. Longitudinal beam; 14. Jack; 15. Wire rope; 16. Steel box arch rib;

[0026] 17. Connecting sleeve; 18. Embedded anchor rod; 19. First flange; 20. First rib; 21. Insertion section; 22. Steel sleeve; 23. Reinforcing body for reserved hole; 24. Top rod; 25. Foamed concrete; 26. Upper embedded steel plate; 27. Lower embedded steel plate; 28. Top plate of steel box girder; 29. ​​Bottom plate of steel box girder; 30. Core tube; 31. Connecting rod; 32. Vertical rod; 33. Second flange; 34. Second rib. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0028] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0029] The present invention will be further described below with reference to embodiments, wherein traditional construction methods such as component fabrication, component hoisting and transportation, component welding, bolt fixing, and foam concrete pouring are not described in detail. The following description of the embodiments is only for the purpose of helping to understand the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0030] Figure 1 This is a side elevation diagram of the steel box arch rib integral lifting support structure; Figure 2 This is a schematic diagram of the overall lifting support structure for the steel box arch rib; Figure 3 This is a schematic diagram of the cross-section of a reinforced concrete foundation with fixed steel pipe columns.

[0031] Figure 4 This is a detailed schematic diagram of the steel pipe column insertion section; Figure 5 This is a schematic diagram of the connecting sleeve; Figure 6 This is a schematic diagram of the reinforcement section of the reserved hole in the steel box girder; Figure 7 This is a schematic diagram of the cross-section of the pre-drilled hole reinforcement. Figure 8 This is a schematic diagram of the pre-drilled hole reinforcement.

[0032] Referring to the figures, the overall lifting support structure for the steel box girder arch rib includes: 1. Original jacking support pipe pile, 2. Lifting station pipe pile, 3. Foundation, 4. Steel box girder, 5. Reserved hole, 6. Flange plate, 7. Lifting steel pipe support, 8. Steel pipe column, 9. Horizontal bracing, 10. Diagonal support, 11. Pillar beam, 12. Horizontal beam, 13. Longitudinal beam, 14. Jack, 15. Steel wire rope, 16. Steel box girder arch rib, 17. Connecting sleeve, 18. Pre-embedded anchor rod, 19. First flange, 20. First rib plate, 21. Insertion section, 22. Steel sleeve, 23. Reinforcing body for reserved hole, 24. Top rod, 25. Foamed concrete, 26. Upper embedded steel plate, 27. Lower embedded steel plate, 28. Top plate of steel box girder, 29. Bottom plate of steel box girder, 30. Core tube, 31. Connecting rod, 32. Vertical rod, etc.; the components of the overall lifting support structure for the steel box girder arch rib are all processed in the factory and assembled on site.

[0033] The lifting steel pipe support 7 consists of steel pipe columns 8, horizontal bracing 9, and diagonal supports 10. The steel pipe columns 8 are shared with the original jacking support piles 1 below. A row of lifting station piles 2 is driven on the outer side of the corresponding position. At the same time, a 7m×7m×2m C30 reinforced concrete pile cap 3 is set on the top of the original jacking support piles 1. The original jacking support piles 1 extend 1m into the pile cap. The lifting steel pipe support 7 is then arranged on the pile cap 3, forming a lifting support system composed of 8 steel pipe columns 8. The flange plate 6 is installed later. The steel pipe columns 8 located inside the steel box girder 4 have holes 5 pre-drilled at the corresponding positions of the steel box girder 4. The steel pipe columns 8 are extended by passing through the holes. The top of the steel pipe columns 8 is sequentially equipped with a sleeper beam 11, a crossbeam 12, a longitudinal beam 13, and a jack 14. The jack 14 lifts the steel box arch bridge segments spliced ​​by the steel box arch ribs 16 as a whole through the steel wire rope 15.

[0034] The connecting sleeve 17 consists of a first flange 19, a first rib 20, and a steel sleeve 22. The steel sleeve 22 is made of steel pipe, and its inner diameter is slightly larger than the outer diameter of the steel pipe column 8. The first flange 19 is welded to both the upper and lower ends of the steel sleeve 22, and the first rib 20 is provided. The connecting sleeve 17 is fixed to the pre-embedded anchor rod 18 through the first flange 19. The steel pipe column 8 on the upper part of the bearing platform 3 is provided with a second flange 33, a second rib 34, and an insertion section 21. After the steel pipe column 8 passes through the reserved hole 5 of the steel box girder 4, the lower insertion section 21 is directly inserted into the connecting sleeve 17 for temporary fixation. It is then fixed by the flange, which improves the installation accuracy and efficiency.

[0035] During the fabrication of the steel box girder 4, a reinforcing body 23 is locally installed at the pre-reserved hole 5. The reinforcing body 23 consists of a core tube 30, connecting rods 31, and vertical rods 32. The core tube 30 is made of steel pipe, and connecting rods 31 and vertical rods 32 are symmetrically arranged around it. The vertical rods 32 and some connecting rods 31 are welded and fixed to the top plate 28 and bottom plate 29 of the steel box girder. After the lifting steel pipe support 7 is removed, a lower embedded steel plate 27 is welded to the lower part of the core tube 30. The lower embedded steel plate 27 is welded to the top rod 24 to form a whole. When welding the lower embedded steel plate 27, it can be temporarily fixed above the steel box girder 4 by the top rod 24. After the lower embedded steel plate 27 is welded, foam concrete 25 is filled into the core tube 30, and finally the upper embedded steel plate 26 is welded.

[0036] The parts not described in detail in this application are prior art, and therefore are not described in detail in this application.

[0037] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0038] Although this document uses a significant amount of technical terminology, the possibility of using other terms is not excluded. These terms are used merely to facilitate the description and explanation of the nature of this application; interpreting them as any additional limitation would be contrary to the spirit of this application.

[0039] This application is not limited to the above-described preferred embodiments. Anyone can derive other products in various forms under the guidance of this application. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to that of this application falls within the protection scope of this application.

Claims

1. A steel box arch rib integral lifting support structure, characterized in that, include: Original top-push support pipe pile (1), steel box girder (4), flange plate (6), lifting steel pipe support (7), steel box arch rib (16), connecting sleeve (17), pre-embedded anchor rod (18), top rod (24), steel box girder top plate (28), steel box girder bottom plate (29); The lifting steel pipe support (7) consists of steel pipe columns (8), horizontal bracing (9), and diagonal bracing (10). The steel pipe columns (8) are shared with the original jacking support piles (1) below, and a row of lifting station piles (2) is provided on the outer side of each corresponding position. The original jacking support pipe pile (1) is provided with a pile cap (3) at the top, and the original jacking support pipe pile (1) extends into the pile cap (3) by a certain distance. The pile cap (3) is provided with a lifting steel pipe support (7) to form a lifting support system composed of multiple steel pipe columns (8). The steel pipe column (8) located inside the steel box girder (4) has a reserved hole (5) at the corresponding position of the steel box girder (4). The steel pipe column (8) is extended after passing through the reserved hole (5). The top of the steel pipe column (8) is provided with a pillow beam (11), a cross beam (12), a longitudinal beam (13), and a jack (14). The jack (14) lifts the steel box arch bridge segment spliced ​​by the steel box arch rib (16) as a whole through the steel wire rope (15). The connecting sleeve (17) is composed of a first rib plate (20) and a steel sleeve (22). The steel sleeve (22) has a first flange plate (19) welded to both the upper and lower ends and is provided with a first rib plate (20). The connecting sleeve (17) is fixed to the pre-embedded anchor rod (18) through the first flange plate (19). The steel pipe column (8) on the upper part of the pier (3) is provided with a second flange (33), a second rib (34), and an insertion section (21). The lower insertion section (21) of the steel pipe column (8) is inserted into the connecting sleeve (17) after passing through the reserved hole (5) of the steel box girder (4) and is fixed by the first flange (19).

2. The integral lifting support structure for the steel box arch rib as described in claim 1, characterized in that, The steel box girder (4) is provided with a pre-drilled hole reinforcement body (23). The pre-drilled hole reinforcement body (23) is composed of a core tube (30), a connecting rod (31), and a vertical rod (32). The core tube (30) is symmetrically provided with connecting rods (31) and vertical rods (32) around its perimeter. The vertical rods (32) and some of the connecting rods (31) are welded and fixed to the top plate (28) and bottom plate (29) of the steel box girder.

3. The integral lifting support structure for the steel box arch rib as described in claim 1, characterized in that, After the lifting steel pipe support (7) is removed, a lower embedded steel plate (27) is welded to the lower part of the core tube (30). The lower embedded steel plate (27) is welded to the top rod (24) as a whole. The core tube (30) is filled with foam concrete (25) and an upper embedded steel plate (26) is welded to it.

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