Reserved socket and spigot type steel trestle structure in low-tide-level water-free environment

Abstract

The utility model discloses a reserved socket type steel trestle structure in a low-tide-level water-free environment. Comprising a shaped reserved socket-and-spigot bearing platform, an embedded steel pipe, a hard rock riverbed, a rock side slope, a flood tide line, a steel pipe stand column, a clamping plate, a cross beam, a bolt screw, a bailey beam, a guardrail, a pavement structure, an embedded steel casing, a reserved groove, a supporting steel bar, cast-in-place concrete, a steel formwork, a square steel framework, a fixing bolt, a lug plate, an anti-displacement steel plate, a plugging steel plate and the like. According to the reserved socket and spigot type steel trestle structure in the low-tide-level water-free environment, related components are all machined in a factory and combined and spliced on site. The construction efficiency and quality of the steel trestle structure under the low-tide-level water-free environment of a cross-sea bridge are improved, in addition, the steel components are easy to assemble and disassemble and can be repeatedly used, the construction cost can be effectively reduced, and good technical and economic benefits can be obtained when the steel components are applied to actual engineering.

Description

Technical Field

[0001] This utility model relates to a steel trestle structure, and more particularly to a steel trestle structure with a pre-installed socket type for use in low-tide, waterless environments. Background Technology

[0002] In specific low-tide, waterless environments, a robust steel trestle bridge that is easy to install and dismantle is needed to meet construction or traffic requirements. Traditional trestle bridge construction methods may face problems such as complex on-site fabrication, long installation cycles, and insufficient stability. Therefore, developing a new type of pre-installed socket-type steel trestle bridge structure for low-tide, waterless environments is particularly important.

[0003] The background of this research is to address the shortcomings of traditional trestle bridge construction by prefabricating relevant components in a factory and then assembling them on-site, thereby improving construction efficiency and the stability of the trestle bridge. The research also involves the application of innovative technologies such as a standardized pre-installed socket-type abutment system, a rapid fixing device for the top of steel pipe columns, and an integrated positioning formwork structure that eliminates the need for dismantling, to further enhance the construction quality and efficiency of the trestle bridge.

[0004] In summary, this study addresses the practical needs of trestle construction in waterless environments at low tide levels, aiming to provide a more efficient and stable steel trestle construction solution through technological innovation and process improvement. Utility Model Content

[0005] The purpose of this utility model is to address the problem of rapid construction of steel trestle bridges by providing a pre-reserved socket-type steel trestle bridge structure for low-tide, waterless environments.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] This low-tide, waterless environment is designed with a pre-installed socket-type steel trestle structure, including:

[0008] The standardized pre-reserved socket-type foundation serves as an expanded foundation for steel pipe columns. It is an integrated positioning and non-removable formwork structure composed of steel formwork, square steel frame, and embedded steel pipes. The square steel frame is an integral frame structure with pre-reserved holes and welded embedded steel pipes for support.

[0009] The embedded steel casing is set in a standardized pre-reserved socket-type bearing platform. It is made of coarse steel pipe and has a reserved groove, supporting steel bars and ear plate with reserved holes on its outer side.

[0010] The steel pipe column has an anti-displacement steel plate and an ear plate with pre-drilled holes at the bottom, and a sealing steel plate is welded to the top. Two clamping plates are welded to the sealing steel plate to form a crossbeam installation slot.

[0011] The crossbeam is fixed to the reserved holes in the card plate by pins and screws, and Bailey beams, road structure and guardrail are installed on it in sequence.

[0012] The anti-displacement steel plate at the bottom of the steel pipe column is inserted into the reserved groove of the embedded steel casing, and is connected to the ear plate of the embedded steel casing through the reserved hole of the ear plate by fixing bolts to form an integral structure.

[0013] Furthermore, the reserved groove of the pre-embedded steel casing is a longitudinal through groove, the width of which matches the thickness of the anti-displacement steel plate, and is used to limit the horizontal displacement of the steel pipe column.

[0014] Furthermore, the card plate is symmetrically welded to both sides of the sealing steel plate, and its reserved hole is aligned with the hole at the end of the crossbeam and locked in place by a pin screw.

[0015] Furthermore, the frame structure of the square steel skeleton is equipped with multiple sets of cross supports, which are rigidly connected by welded embedded steel pipes.

[0016] Furthermore, the ear plates at the bottom of the steel pipe column are connected to the ear plates of the pre-embedded steel casing using double-layer fixing bolts to enhance shear and pull-out resistance.

[0017] Furthermore, the anti-displacement steel plate has a wedge-shaped structure. After being inserted into the pre-reserved groove of the pre-embedded steel casing, it is further restricted by welding or bolting.

[0018] Furthermore, the Bailey beams and crossbeams are connected by high-strength bolts, and the surface of the road structure is paved with anti-skid steel plates or asphalt concrete layers.

[0019] Compared with the prior art, the present invention has the following features and beneficial effects:

[0020] 1. This utility model provides a pre-installed socket-type steel trestle structure for low-tide, waterless environments. All related components can be processed in the factory and assembled on-site, improving the efficiency and quality of formwork support.

[0021] 2. This utility model, through the development of a standardized pre-reserved socket-type pier system, achieves standardization and rapid installation of the pier, which not only improves the convenience of installation but also enhances the overall stability of the trestle bridge.

[0022] 3. This utility model adopts a quick-fixing and non-dismantling formwork structure, which further simplifies the construction process, shortens the construction period, and improves construction safety. It can effectively reduce construction costs and achieve good technical and economic benefits when applied to actual projects. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the cross-section of a pre-reserved socket-type steel trestle bridge structure in a waterless environment at low tide.

[0024] Figure 2 This is a schematic diagram of the top plan of the steel pipe column;

[0025] Figure 3 This is a schematic diagram of the cross-section of a standardized pre-reserved socket-type bearing cap;

[0026] Figure 4 This is a schematic diagram of a standardized pre-reserved socket-type bearing platform;

[0027] Figure 5 This is a detailed schematic diagram of the pre-embedded steel casing;

[0028] Figure 6 This is a schematic diagram of a square steel frame.

[0029] In the diagram: 1. Standardized pre-reserved socket-type foundation; 2. Embedded steel pipe; 3. Hard rock riverbed; 4. Rock slope; 5. Tide line; 6. Steel pipe column; 7. Clamping plate; 8. Crossbeam; 9. Pin bolt; 10. Bailey beam; 11. Guardrail; 12. Road structure; 13. Embedded steel casing; 14. Pre-reserved groove; 15. Supporting reinforcement; 16. Cast-in-place concrete; 17. Steel formwork; 18. Square steel frame; 19. Fixing bolt; 20. Ear plate; 21. Anti-displacement steel plate; 22. Pre-reserved hole; 23. Sealing steel plate. Detailed Implementation

[0030] 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.

[0031] The present invention will be further described below with reference to embodiments, wherein traditional construction methods such as component fabrication, component hoisting and transportation, slope clearing, and rebar tying 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.

[0032] Figure 1 This is a schematic diagram of the cross-section of a pre-reserved socket-type steel trestle bridge structure in a waterless environment at low tide. Figure 2 This is a schematic diagram of the top plan of the steel pipe column; Figure 3 This is a schematic diagram of the cross-section of a standardized pre-reserved socket-type bearing cap; Figure 4 This is a schematic diagram of a standardized pre-reserved socket-type bearing platform; Figure 5 This is a detailed schematic diagram of the pre-embedded steel casing; Figure 6 This is a schematic diagram of a square steel frame.

[0033] Referring to the figures, the pre-installed socket-type steel trestle structure for low-tide, waterless environments includes: 1. Standardized pre-installed socket-type abutment, 2. Embedded steel pipe, 3. Hard rock riverbed, 4. Rock slope, 5. Tide line, 6. Steel pipe column, 7. Clamping plate, 8. Crossbeam, 9. Pin bolt, 10. Bailey beam, 11. Guardrail, 12. Road surface structure, 13. Embedded steel casing, 14. Pre-installed groove, 15. Supporting steel reinforcement, 16. Cast-in-place concrete, 17. Steel formwork, 18. Square steel frame, 19. Fixing bolt, 20. Ear plate, 21. Anti-displacement steel plate, 22. Pre-installed hole, 23. Sealing steel plate. All components of the pre-installed socket-type steel trestle structure for low-tide, waterless environments are prefabricated in the factory and assembled on-site. A standardized pre-installed socket-type abutment system, a rapid fixing device for the top of the steel pipe column, and an integrated positioning, non-dismantling formwork structure have been developed.

[0034] The standardized pre-reserved socket-type foundation 1 serves as the expanded foundation for the steel pipe column 6. It adopts an integrated positioning and non-removable formwork structure, consisting of steel formwork 17, square steel frame 18, and embedded steel pipes 2. The square steel frame 18 adopts an integral frame structure with pre-reserved holes 22 and welded embedded steel pipes 2 for support. After the site is leveled, the standardized pre-reserved socket-type foundation 1 is positioned and marked. Holes are drilled using a water-cooled drill, and the embedded steel pipes 2 of the integral square steel frame 18 are inserted into the holes. The steel formwork 17 is fixed to the square steel frame 18 by fixing bolts 19 passing through the pre-reserved holes 22. The standardized pre-reserved socket-type foundation 1 is then reinforced with steel mesh, and a pre-embedded steel casing 13 is installed before concrete is poured.

[0035] The embedded steel casing 13 is made of thick steel pipe and has a reserved groove 14, supporting steel bars 15, and ear plates 20. The ear plates 20 have reserved holes 22. The bottom of the steel pipe column 6 is equipped with an anti-displacement steel plate 21 and ear plates 20, with reserved holes 22 in the ear plates 20. The top is welded with a sealing steel plate 23. Two clamping plates 7 are welded on the sealing steel plate 23 to form a crossbeam 8 installation slot. The clamping plates 7 have reserved holes 22. The crossbeam 8 is fixed by a pin and screw 9. Bailey beam 10, road structure 12, and guardrail 11 are installed on it in sequence. The anti-displacement steel plate 21 at the bottom of the steel pipe column 6 is inserted into the reserved groove 14 of the embedded steel casing 13. The ear plates 20 at the bottom of the steel pipe column 6 and the ear plates 20 of the embedded steel casing 13 are installed with fixing bolts 19 in the reserved holes to form a whole.

[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 low-tide dry environment preformed socketed steel trestle structure, characterized by, The utility model relates to a prefabricated reserved socket and spigot type bearing platform (1) as the enlarged foundation of steel pipe column (6) is composed of integrated positioning formwork removal structure of steel formwork (17), square steel framework (18) and embedded steel pipe (2), the square steel framework (18) is integral frame structure, and the inside is provided with reserved hole (22) and welds embedded steel pipe (2) as support, The embedded steel casing (13) is arranged in the prefabricated reserved socket and spigot type bearing platform (1) and is processed from thick steel pipe, the outer side is equipped with reserved groove (14), support reinforcement (15) and ear plate (20) with reserved hole (22), The steel pipe column (6) is equipped with anti-displacement steel plate (21) and ear plate (20) with reserved hole (22) at the bottom, and the top is welded with blocking steel plate (23), and two clamping plates (7) are welded on the blocking steel plate (23) to form beam (8) mounting notch, The beam (8) is fixed on the reserved hole (22) of the clamping plate (7) through the latch bolt (9), and the barye beam (10), pavement structure (12) and guardrail (11) are sequentially installed on the beam (8), Wherein, the anti-displacement steel plate (21) at the bottom of the steel pipe column (6) is inserted into the reserved groove (14) of the embedded steel casing (13), and the reserved hole (22) of the ear plate (20) is connected with the ear plate (20) of the embedded steel casing (13) through the fixed bolt (19) to form an integral structure. The reserved groove (14) of the embedded steel casing (13) is a longitudinal through groove, and the width is matched with the thickness of the anti-displacement steel plate (21), so as to limit the horizontal displacement of the steel pipe column (6).

2. The low-tide wetless environment preformed spigot and bell type steel-jetty structure according to claim 1, characterized in that, The clamping plate (7) is symmetrically welded on both sides of the blocking steel plate (23), the reserved hole (22) is aligned with the hole position of the end of the beam (8), and is locked and fixed through the latch bolt (9).

3. The low-tide wetless environment reserve bell and spigot type steel-pier structure according to claim 1, characterized in that, The frame structure of the square steel framework (18) is provided with a plurality of cross supports inside, and is rigidly connected by welding the embedded steel pipe (2).

4. The low-tide wetless environment reserve bell and spigot type steel-pier structure according to claim 1, characterized in that, The ear plate (20) at the bottom of the steel pipe column (6) and the ear plate (20) of the embedded steel casing (13) are connected by double-layer fixed bolts (19) to enhance the shear and pullout resistance.

5. The low-tide wetless environment reserve bell and spigot type steel-pier structure according to claim 1, characterized in that, The anti-displacement steel plate (21) is a wedge structure, which is inserted into the reserved groove (14) of the embedded steel casing (13), and further limits the vertical displacement by welding or bolt fixing.

6. The low-tide wetless environment reserve bell and spigot type steel-jetty structure according to claim 1, characterized in that, The barye beam (10) and the beam (8) are connected by high-strength bolts, and the surface of the pavement structure (12) is paved with anti-skid steel plate or asphalt concrete layer.

7. The low-tide wetless environment reserve bell and spigot type steel-pier structure according to claim 1, characterized in that, ​

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