Offshore photovoltaic bolt-sphere net rack diagonal bracing structure

Abstract

The utility model discloses an inclined strut structure of an offshore photovoltaic bolt-sphere net rack. The inclined strut structure comprises the bolt-sphere net rack, four steel pipe piles and four groups of pile top connecting assemblies, the upper ends of the four steel pipe piles are each connected with one pile top connecting assembly, and the upper ends of the four pile top connecting assemblies are connected with the bolt-sphere net rack. The bolt-sphere net rack comprises a plurality of upper chords, a plurality of lower chords, a plurality of web members, a plurality of upper bolt spheres and a plurality of lower bolt spheres; the plurality of upper chords are connected into a square net shape through the plurality of upper bolt balls, the plurality of lower chords are connected into a square net shape through the plurality of lower bolt balls, the plurality of web members are obliquely arranged between two square nets, and two ends of each web member are respectively connected with the upper bolt balls and the lower bolt balls. The utility model aims to overcome the defects in the prior art and provides the inclined strut structure of the offshore photovoltaic bolt-sphere net rack, and the inclined strut structure has the advantages of high assembly efficiency and convenience in construction.

Description

Technical Field

[0001] This utility model relates to a marine photovoltaic bolt ball grid diagonal bracing structure. Background Technology

[0002] With the increasing demand for new energy installations and the proposed "3060 dual-carbon" target, coastal provinces in my country have actively responded to the national "dual-carbon" strategy, successively issuing various policy opinions to support the development of offshore photovoltaic (PV) projects. Currently, some offshore PV projects utilize bolted ball grid structures as the support type. Bolted ball grid structures, composed of rods and bolted ball nodes, are a typical prefabricated structure characterized by standardized design, modular products, factory production, mechanized assembly, and refined management. They offer excellent component precision and quality control, rapid processing and assembly, and short construction cycles, maximizing the fulfillment of green building design and construction requirements for energy conservation, land conservation, water conservation, material conservation, and environmental protection. This represents a new direction for offshore PV support types.

[0003] When existing bolted ball space frame structures are used in marine environments, especially in typhoon-prone areas, the following problems arise: Without additional diagonal bracing at the pile tops, the large span of the upper bolted ball space frame will result in significant deflection under wind loads, and the pile foundations will also bear substantial bending moments. To meet the requirements for space frame deflection and pile foundation bearing capacity, it is necessary to increase the structural performance of the space frame and pile foundations by enlarging the members and pile foundation specifications, which will significantly increase the workload of the space frame and pile foundation. However, adding diagonal bracing at the pile tops can increase the support points of the upper space frame structure, reduce space frame deflection, and simultaneously optimize the stress on the pile foundations, reducing the bending moments borne by the pile foundations, thus significantly reducing the workload of the upper bolted ball space frame and lower pile foundations.

[0004] However, offshore photovoltaic projects are large-scale projects involving numerous grid structures. To ensure project progress, production tasks are typically distributed among multiple manufacturers. Due to the long transportation distances, transportation costs are correspondingly high. For grid structures without diagonal bracing, multiple structures can be transported at once using a stacking method, thus saving transportation costs. In contrast, grid structures with diagonal bracing, due to their greater structural height, cannot meet the requirements for stacking. Therefore, during offshore transportation, only one bolted ball grid structure can be transported at a time, resulting in lower transportation efficiency and higher costs.

[0005] Therefore, a marine photovoltaic bolted ball grid diagonal bracing structure is proposed to address the above problems. Utility Model Content

[0006] The purpose of this utility model is to overcome the existing defects and provide a marine photovoltaic bolt ball grid diagonal bracing structure, which has the advantages of high assembly efficiency and convenient construction.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a marine photovoltaic bolted ball grid diagonal bracing structure, comprising a bolted ball grid, four steel pipe piles, and four sets of pile top connection components;

[0008] Each of the four steel pipe piles is connected to a set of pile top connection components at its upper end, and the upper ends of the four sets of pile top connection components are connected to the bolt ball grid frame.

[0009] Preferably, the bolted ball net frame includes multiple upper chords, multiple lower chords, multiple web members, multiple upper bolted balls, and multiple lower bolted balls;

[0010] Multiple upper chord members are connected to form a square mesh by multiple upper bolt balls, and multiple lower chord members are connected to form a square mesh by multiple lower bolt balls. Multiple web members are obliquely arranged between two square meshes, with their ends connected to the upper bolt balls and lower bolt balls respectively.

[0011] Preferably, the pile top connection assembly includes a ball connector, a partition, and a guide section;

[0012] The ball connector is connected to the lower bolt ball, the lower end of the ball connector is connected to the partition plate, the lower end of the partition plate is connected to the guide section, and the guide section is inserted into the upper port of the steel pipe pile.

[0013] Preferably, the pile top connection assembly further includes a clamp, two connecting steel plates, four bolted connecting plates, and four diagonal braces;

[0014] The clamp is connected to the upper end of the outer wall of the steel pipe pile. Two connecting steel plates are connected to both sides of the outer wall of the clamp. The lower ends of the four diagonal braces are each connected to a bolt connecting plate. The lower ends of two of the diagonal braces are connected to the connecting steel plates through bolt connecting plates, and the lower ends of the other two diagonal braces are connected to the extended flange of the steel plate of the clamp through bolt connecting plates. The upper ends of the four diagonal braces are connected to the corresponding lower bolt balls.

[0015] Preferably, the partition is welded to the upper end of the steel pipe pile.

[0016] Preferably, the connecting steel plate is welded to the outer wall of the clamp.

[0017] Compared with existing technologies, the beneficial effects of this utility model are as follows: This offshore photovoltaic bolted ball grid structure features high assembly efficiency and convenient construction; the overall stability during construction is ensured by welding and fixing it to the steel pipe piles through the pile top connecting components. Furthermore, the addition of diagonal bracing enhances the load-bearing capacity of the bolted ball grid and pile foundation, enabling the bolted ball grid foundation to withstand greater loads while reducing the amount of steel structure work. The diagonal bracing can be installed after the pile foundation and upper bolted ball grid are completed, connected to the clamps via bolted connecting plates. This reduces the height of the bolted ball grid during offshore transportation, allowing for the simultaneous transportation of multiple bolted ball grids, effectively reducing offshore transportation costs and improving the project's economic efficiency. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is an isometric view of the marine photovoltaic bolt ball grid diagonal bracing structure of this utility model;

[0020] Figure 2 This is a side view of the marine photovoltaic bolt ball grid diagonal bracing structure of this utility model;

[0021] Figure 3 This is a top view of the pile top connection assembly of this utility model;

[0022] Figure 4 This is a side view of the pile top connection assembly of this utility model;

[0023] Figure 5 This is a front view of the pile top connection assembly of this utility model;

[0024] Figure 6 This is an isometric view of the pile top connection assembly of this utility model;

[0025] Figure 7 This is a detailed drawing of the clamp of this utility model.

[0026] In the diagram: 1. Bolted ball grid; 11. Upper chord; 12. Lower chord; 13. Web member; 14. Upper bolted ball; 15. Lower bolted ball; 2. Steel pipe pile; 3. Pile top connection assembly; 31. Ball connection seat; 32. Partition plate; 33. Guide section; 34. Clamp; 35. Connecting steel plate; 36. Bolted connection plate; 37. Diagonal brace; 38. Bolt. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-7 A marine photovoltaic bolted ball grid inclined bracing structure includes a bolted ball grid 1, four steel pipe piles 2 and four sets of pile top connection components 3; the upper ends of the four steel pipe piles 2 are each connected to a set of pile top connection components 3, and the upper ends of the four sets of pile top connection components 3 are connected to the bolted ball grid 1.

[0029] Specifically, the bolted ball net frame 1 includes multiple upper chords 11, multiple lower chords 12, multiple web members 13, multiple upper bolted balls 14, and multiple lower bolted balls 15; the multiple upper chords 11 are connected to form a square net through the multiple upper bolted balls 14, the multiple lower chords 12 are connected to form a square net through the multiple lower bolted balls 15, and the multiple web members 13 are obliquely arranged between the two square nets, with their two ends connected to the upper bolted balls 14 and the lower bolted balls 15 respectively.

[0030] Specifically, the pile top connection assembly 3 includes a ball connector 31, a partition plate 32, and a guide section 33. The upper end of the ball connector 31 is connected to a lower bolt ball 15, the lower end of the ball connector 31 is connected to the partition plate 32, the lower end of the partition plate 32 is connected to the guide section 33, and the guide section 33 is inserted into the upper end of the steel pipe pile 2. The partition plate 32 is welded to the upper end of the steel pipe pile 2.

[0031] Specifically, the pile top connection assembly 3 also includes a clamp 34, two connecting steel plates 35, four bolted connecting plates 36, and four diagonal braces 37. The clamp 34 is connected to the upper end of the outer wall of the steel pipe pile 2. Two connecting steel plates 35 are connected to each side of the outer wall of the clamp 34. The lower ends of the four diagonal braces 37 are each connected to a bolted connecting plate 36. The lower ends of two diagonal braces 37 are connected to the connecting steel plates 35 through the bolted connecting plates 36, and the lower ends of the other two diagonal braces 37 are connected to the extended flange of the steel plate of the clamp 34 through the bolted connecting plates 36. The upper ends of the four diagonal braces 37 are connected to the corresponding lower bolt balls 15. The connecting steel plates 35 are welded to the outer wall of the clamp 34.

[0032] Specifically, the prefabricated bolted ball grid frame 1 is manufactured in an onshore factory. Multiple upper chord members 11 are connected into a square grid using multiple upper bolted balls 14, and multiple lower chord members 12 are connected into a square grid using multiple lower bolted balls 15. Multiple web members 13 are obliquely positioned between two square grids, with their ends connected to the upper bolted balls 14 and lower bolted balls 15 respectively. At least four web members 13 are connected to each upper bolted ball 14 and each lower bolted ball 15. A ball connecting seat 31, a partition plate 32, and a guide section 33 are connected to each of the four corners of the lower end face of each bolted ball grid frame 1. The prefabricated bolted ball grid frame 1, steel pipe piles 2, and pile top connecting components 3 are transported to the installation site via a transport barge. During transport, simple tooling is used on the transport barge to stack the bolted ball grid frame 1.

[0033] Specifically, steel pipe piles are driven into appropriate locations, and prefabricated bolted ball grid frame 1 is installed on the steel pipe pile 2. The bolted ball grid frame 1 is lifted as a whole using a crane boat, and the guide section 33 at the lower end of the pile top connecting component 3 is inserted into the upper port of the steel pipe pile 2. The partition plate 32 at the upper end of the guide section 33 is welded to the upper port of the steel pipe pile 2 on site, so that the bolted ball grid frame 1 and the steel pipe pile 2 are connected as a whole.

[0034] Specifically, clamps and diagonal bracing are installed on the steel pipe piles 2: small construction vessels are used to install clamps 34 at predetermined positions on the steel pipe piles 2, and the bolt ball nodes on the bolt ball grid frame 1 are connected to the clamps 34 through diagonal bracing 37, ultimately forming a complete large-span bolt ball grid frame structure with diagonal bracing.

[0035] This offshore photovoltaic bolted sphere grid structure features efficient assembly and convenient construction. The welded connection components at the pile top ensure overall stability during construction. Furthermore, the addition of diagonal bracing enhances the load-bearing capacity of the bolted sphere grid and pile foundation, allowing the foundation to withstand greater loads while reducing the amount of steel structure work. The diagonal bracing can be installed after the pile foundation and upper bolted sphere grid are completed, connected to clamps via bolted plates. This reduces the height of the bolted sphere grid during offshore transport, enabling the simultaneous transport of multiple units, effectively lowering maritime transport costs and improving the project's economic viability.

[0036] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A marine photovoltaic bolted ball grid diagonal bracing structure, characterized in that, It includes a bolted ball grid frame (1), four steel pipe piles (2) and four sets of pile top connection components (3); Each of the four steel pipe piles (2) is connected to a set of pile top connection components (3) at its upper end, and the upper ends of the four sets of pile top connection components (3) are connected to the bolt ball grid frame (1).

2. The marine photovoltaic bolted ball grid diagonal bracing structure according to claim 1, characterized in that, The bolt ball net frame (1) includes multiple upper chords (11), multiple lower chords (12), multiple web members (13), multiple upper bolt balls (14), and multiple lower bolt balls (15); Multiple upper chords (11) are connected to form a square mesh by multiple upper bolt balls (14), multiple lower chords (12) are connected to form a square mesh by multiple lower bolt balls (15), and multiple web members (13) are obliquely arranged between two square meshes, with their ends connected to the upper bolt balls (14) and the lower bolt balls (15) respectively.

3. The marine photovoltaic bolted ball grid diagonal bracing structure according to claim 2, characterized in that, The pile top connection assembly (3) includes a ball connection seat (31), a partition plate (32), and a guide section (33); The ball connector (31) is connected to the lower bolt ball (15), the lower end of the ball connector (31) is connected to the partition plate (32), the lower end of the partition plate (32) is connected to the guide section (33), and the guide section (33) is inserted into the upper port of the steel pipe pile (2).

4. The marine photovoltaic bolted spherical grid diagonal bracing structure according to claim 2, characterized in that, The pile top connection assembly (3) also includes a clamp (34), two connecting steel plates (35), four bolt connecting plates (36) and four diagonal braces (37); The clamp (34) is connected to the upper end of the outer wall of the steel pipe pile (2). Two connecting steel plates (35) are connected to the two sides of the outer wall of the clamp (34). The lower ends of the four diagonal braces (37) are each connected to a bolt connecting plate (36). The lower ends of two of the diagonal braces (37) are connected to the connecting steel plates (35) through the bolt connecting plates (36). The lower ends of the other two diagonal braces (37) are connected to the extended flange of the steel plate of the clamp (34) through the bolt connecting plates (36). The upper ends of the four diagonal braces (37) are connected to the corresponding lower bolt balls (15).

5. The marine photovoltaic bolted spherical grid diagonal bracing structure according to claim 3, characterized in that, The partition (32) is welded to the upper end of the steel pipe pile (2).

6. The marine photovoltaic bolted spherical grid diagonal bracing structure according to claim 4, characterized in that, The connecting steel plate (35) is welded to the outer wall of the clamp (34).

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