Connecting structure suitable for offshore photovoltaic large platform truss and steel pile

Abstract

The invention discloses a connecting structure suitable for an offshore photovoltaic large platform truss and a steel pile in the technical field of offshore photovoltaic, the connecting structure comprises a large platform truss and a steel pile body, the top of the large platform truss is provided with a photovoltaic module, and the top of the steel pile body is provided with a connecting structure. The large platform truss is connected with the steel pile body through a connecting structure. The large platform truss, the connecting structures and the steel pile modules can be manufactured on the land, the offshore photovoltaic construction efficiency can be greatly improved, the difficulty can be reduced, meanwhile, the construction process can be effectively controlled, the product quality of the structure can be guaranteed, intensive large-scale production can be conducted, and after the structure modules are constructed on the land, the construction cost is reduced. The offshore construction difficulty can be greatly reduced, the offshore construction procedures are reduced, the construction progress is accelerated, the construction period is shortened, and the construction cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore photovoltaics, and in particular to a connection structure suitable for a large offshore photovoltaic platform truss and steel piles. Background Art

[0002] my country has a long coastline and vast offshore waters, which provide sufficient conditions for offshore photovoltaic installation. Considering the existing conditions, offshore photovoltaic not only meets the needs of energy conservation and emission reduction, energy institutional transformation, but also fits the concept of rational development and utilization of marine resources. In addition, the resource reserves and technological development make offshore photovoltaic have the potential for large-scale development, and the commercial prospects are broad.

[0003] There are two main types of offshore photovoltaic foundations: fixed pile foundation and floating type. The connection between the traditional fixed pile foundation and the upper photovoltaic is a clamp type. This fixed type is conducive to construction on land, but for offshore construction conditions and environment, this clamp type is often not conducive to the advancement of the project due to its low reliability. Floating photovoltaics have not yet been fully studied and have not obtained sufficient successful and reliable experience. With the development of the offshore photovoltaic industry, the construction area has gradually transitioned from the tidal flats to the far shore area with a water depth of 5 to 10m or even more than 10m. The applicability of the traditional fixed PHC pipe pile combined with steel support solution is limited, and the steel pile combined with the offshore photovoltaic platform truss solution is more applicable. However, due to the large size and weight of the offshore photovoltaic platform truss structure, it is difficult to connect with the steel pile, the construction efficiency is poor, and the cost is high. Summary of the invention

[0004] In order to improve the above-mentioned problems of difficult construction of connection between offshore photovoltaic platform trusses and steel piles, high strength requirements for connection nodes, and complicated construction procedures, the present invention provides a connection structure suitable for offshore photovoltaic platform trusses and steel piles.

[0005] The present invention provides a connection structure suitable for a large offshore photovoltaic platform truss and steel piles, which adopts the following technical solution:

[0006] A connection structure suitable for a large offshore photovoltaic platform truss and a steel pile, comprising a large platform truss and a steel pile body, wherein a photovoltaic module is installed on the top of the large platform truss, a connection structure is provided on the top of the steel pile body, and the large platform truss is connected to the steel pile body through the connection structure;

[0007] The connection structure includes a connecting flange, which is arranged on the top of the steel pile body. The top of the connecting flange is connected to a cross steel plate, and the cross steel plate is connected to a platform supporting steel pipe. The end of the platform supporting steel pipe away from the cross steel plate is connected to the large platform truss, and fixing bolts are arranged between the cross steel plate and the platform supporting steel pipe.

[0008] By adopting the above technical solution, the manufactured large platform truss structure and connecting structure are transported to the site for construction and installation, one end of the cross steel plate is clamped on the end of the platform support steel pipe, and fixing bolts are inserted to fix the cross steel plate and the platform support steel pipe. Then, the large platform truss can be connected to the steel pile body, which can greatly improve the construction efficiency of offshore photovoltaics, greatly reduce the difficulty of offshore construction, reduce the offshore construction process, and speed up the construction progress.

[0009] Optionally, a pile top flange is connected to the top of the steel pile body, a plurality of first waist-shaped holes are opened on the surface of the pile top flange, a plurality of second waist-shaped holes are opened on the surface of the connecting flange, the first waist-shaped holes and the second waist-shaped holes are arranged correspondingly, and connecting bolts are passed between the first waist-shaped holes and the second waist-shaped holes.

[0010] By adopting the above technical solution, the load transmitted to the steel pile body through the pile top flange is transmitted to the stratum, resisting the horizontal load borne by the structure, ensuring that its strength meets the requirements and does not deform too much, avoiding safety accidents.

[0011] Optionally, the outer side of the steel pile body is connected with reinforcing ribs, and the number of the reinforcing ribs is set to eight. The eight reinforcing ribs are arranged in a ring shape about the center of the steel pile body, and the tops of the eight reinforcing ribs are flush with the top of the steel pile body and are welded to the bottom of the pile top flange.

[0012] By adopting the above technical solution, the load transmitted by the connecting flange can be effectively transferred to the steel pile body, and at the same time, the welding strength between the pile top flange and the steel pile body can be increased, thereby improving the overall strength of the pile head part of the steel pile body.

[0013] Optionally, a cylindrical positioning pin is welded to the bottom of the connecting flange, and the diameter of the cylindrical positioning pin is smaller than the diameter of the middle circular hole of the pile top flange.

[0014] The adoption of the above technical solution is conducive to the initial positioning of the large platform truss during the overall hoisting, avoiding large displacement and shaking during the installation process.

[0015] Optionally, there are four groups of the cross steel plates, the four groups of the cross steel plates are arranged in a circle about the center of the connecting flange, the bottom of the four groups of the cross steel plates are welded to the top of the connecting flange, and the longitudinal sections of the four groups of the cross steel plates are all quarter-circular plate structures.

[0016] By adopting the above technical solution, the overall strength and deformation resistance of the cross steel plate are improved, and the large platform truss and the steel pile body can be well connected.

[0017] Optionally, a U-shaped groove is provided at the end of the platform supporting steel pipe, and the end of the cross steel plate away from the center of the connecting flange is located inside the U-shaped groove.

[0018] By adopting the above technical solution, it is convenient to connect the cross steel plates and the platform supporting steel pipes.

[0019] Optionally, the outer sides of the pile top flange, the connecting bolts, the connecting flange and the fixing bolts are all coated with a paint layer.

[0020] By adopting the above technical scheme, the anti-corrosion performance of the pile top flange, connecting bolts, connecting flange and fixing bolts is improved, and rust caused by seawater erosion is avoided as much as possible, thereby extending the service life of the pile top flange, connecting bolts, connecting flange and fixing bolts.

[0021] In summary, the present invention includes at least one of the following beneficial effects:

[0022] The large platform trusses, connecting structures and steel pile modules can all be manufactured on land, which can greatly improve the construction efficiency of offshore photovoltaics and reduce the difficulty. At the same time, the construction process can be effectively controlled, which can not only ensure the product quality of the structure, but also carry out intensive and large-scale production. After the structural modules are completed on land, they are transported to the sea as a whole for construction and installation, which can greatly reduce the difficulty of offshore construction, reduce offshore construction procedures, speed up construction progress, shorten construction period, and reduce construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0027] In the figure: 1. Steel pile body; 2. Reinforcement ribs; 3. Pile top flange; 4. Connecting bolts; 5. Connecting flange; 6. Cylindrical positioning pins; 7. Cross steel plates; 8. Platform supporting steel pipes; 9. Fixing bolts; 10. First waist-shaped hole; 11. Second waist-shaped hole. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 The present invention is described in further detail.

[0029] Please refer to the attached figure in the instruction manual Figure 1 The present invention provides an embodiment: a connection structure suitable for a large offshore photovoltaic platform truss and a steel pile, comprising a large platform truss and a steel pile body 1, a photovoltaic component is installed on the top of the large platform truss, a connection structure is provided on the top of the steel pile body 1, and the large platform truss is connected to the steel pile body 1 through the connection structure.

[0030] Please refer to the attached figure in the instruction manual Figure 1 , Figure 2 and Figure 3 The connection structure includes a connection flange 5, which is arranged on the top of the steel pile body 1. The top of the steel pile body 1 is welded with a pile top flange 3. The surface of the pile top flange 3 is provided with a plurality of first waist-shaped holes 10, and the surface of the connection flange 5 is provided with a plurality of second waist-shaped holes 11. The first waist-shaped holes 10 and the second waist-shaped holes 11 are arranged correspondingly, and a connection bolt 4 is passed between the first waist-shaped holes 10 and the second waist-shaped holes 11. The load transmitted to the steel pile body 1 through the pile top flange 3 is transmitted to the stratum to resist the horizontal load suffered by the structure, ensure that its strength meets the requirements and does not deform too much, and avoid safety accidents.

[0031] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 The outer side of the steel pile body 1 is welded with a reinforcing rib 2, and the number of the reinforcing ribs 2 is set to eight. The eight reinforcing ribs 2 are arranged in a ring shape about the center of the steel pile body 1, and the tops of the eight reinforcing ribs 2 are flush with the top of the steel pile body 1 and welded to the bottom of the pile top flange 3. The load transmitted by the connecting flange 5 can be effectively transmitted to the steel pile body 1, and at the same time, the welding strength between the pile top flange 3 and the steel pile body 1 can be increased, and the overall strength of the pile head part of the steel pile body 1 can be improved.

[0032] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 A cylindrical positioning pin 6 is welded to the bottom of the connecting flange 5, and the diameter of the cylindrical positioning pin 6 is smaller than the diameter of the middle round hole of the pile top flange 3. This is conducive to the initial positioning of the large platform truss during the overall hoisting, avoiding large displacement and shaking during the installation process.

[0033] Please refer to the attached figure in the instruction manual Figure 1 and Figure 3The top of the connecting flange 5 is welded with a cross steel plate 7, and there are four groups of cross steel plates 7. The four groups of cross steel plates 7 are arranged in a ring around the center of the connecting flange 5. The bottoms of the four groups of cross steel plates 7 are welded to the top of the connecting flange 5, and the longitudinal sections of the four groups of cross steel plates 7 are all quarter-circular plate structures. This makes the overall strength and deformation resistance of the cross steel plates 7 better, and can well connect the large platform truss and the steel pile body 1.

[0034] Please refer to the attached figure in the instruction manual Figure 1 and Figure 3 The cross steel plate 7 is connected with a platform support steel pipe 8, and the end of the platform support steel pipe 8 away from the cross steel plate 7 is connected to the large platform truss. A U-shaped groove is opened at the end of the platform support steel pipe 8, and the end of the cross steel plate 7 away from the center of the connecting flange 5 is located inside the U-shaped groove. It is convenient to connect the cross steel plate 7 and the platform support steel pipe 8. A fixing bolt 9 is set between the cross steel plate 7 and the platform support steel pipe 8.

[0035] Please refer to the attached figure in the instruction manual Figure 1 The outer sides of the pile top flange 3, the connecting bolts 4, the connecting flange 5 and the fixing bolts 9 are all coated with a paint layer. This improves the anti-corrosion performance of the pile top flange 3, the connecting bolts 4, the connecting flange 5 and the fixing bolts 9, and avoids rust caused by seawater erosion as much as possible, thereby extending the service life of the pile top flange 3, the connecting bolts 4, the connecting flange 5 and the fixing bolts 9.

[0036] Working principle: When in use, the prepared large platform truss structure and connecting structure are transported to the site for construction and installation. First, the cylindrical positioning pin 6 is inserted into the inside of the steel pile body 1, which is conducive to the initial positioning of the large platform truss during the overall lifting, avoiding large displacement and shaking during the installation process, and then the second waist-shaped hole 11 on the connecting flange 5 is matched with the first waist-shaped hole 10 on the pile top flange 3 in sequence, and then the connecting bolts 4 are penetrated inside the first waist-shaped hole 10 and the second waist-shaped hole 11 for connection, and the pile top flange 3 and the connecting flange 5 are fixedly connected, and then one end of the cross steel plate 7 is engaged in the U-shaped groove at the end of the platform support steel pipe 8, and the fixing bolts 9 are penetrated to make the cross steel plate 7 and the platform support steel pipe 8 fixedly connected, so that the large platform truss can be connected to the steel pile body 1, which can greatly improve the construction efficiency of offshore photovoltaics, greatly reduce the difficulty of offshore construction, reduce offshore construction procedures, and speed up construction progress.

[0037] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A connection structure suitable for a large offshore photovoltaic platform truss and steel piles, comprising a large platform truss and a steel pile body (1), characterized in that: A photovoltaic assembly is installed on the top of the large platform truss, a connecting structure is provided on the top of the steel pile body (1), and the large platform truss is connected to the steel pile body (1) via the connecting structure; The connection structure comprises a connection flange (5), wherein the connection flange (5) is arranged on the top of the steel pile body (1), the top of the connection flange (5) is connected to a cross steel plate (7), the cross steel plate (7) is connected to a platform support steel pipe (8), and the end of the platform support steel pipe (8) away from the cross steel plate (7) is connected to the large platform truss, and fixing bolts (9) are arranged between the cross steel plate (7) and the platform support steel pipe (8).

2. The connection structure between the truss and steel piles of a large offshore photovoltaic platform according to claim 1 is characterized in that: The top of the steel pile body (1) is connected to a pile top flange (3), a surface of the pile top flange (3) is provided with a plurality of first waist-shaped holes (10), a surface of the connecting flange (5) is provided with a plurality of second waist-shaped holes (11), the first waist-shaped holes (10) and the second waist-shaped holes (11) are arranged correspondingly, and a connecting bolt (4) is passed through the first waist-shaped holes (10) and the second waist-shaped holes (11).

3. The connection structure between the truss and steel piles of a large offshore photovoltaic platform according to claim 2 is characterized in that: The outer side of the steel pile body (1) is connected with a reinforcing rib (2), and the number of the reinforcing ribs (2) is set to eight. The eight reinforcing ribs (2) are arranged in a ring shape with respect to the center of the steel pile body (1), and the tops of the eight reinforcing ribs (2) are flush with the top of the steel pile body (1) and are welded to the bottom of the pile top flange (3).

4. The connection structure between the truss and steel piles of a large offshore photovoltaic platform according to claim 1 is characterized in that: A cylindrical positioning pin (6) is welded to the bottom of the connecting flange (5), and the diameter of the cylindrical positioning pin (6) is smaller than the diameter of the central circular hole of the pile top flange (3).

5. The connection structure between the truss and steel piles of a large offshore photovoltaic platform according to claim 1 is characterized in that: There are four groups of the cross steel plates (7), which are arranged in a ring around the center of the connecting flange (5). The bottoms of the four groups of cross steel plates (7) are welded to the tops of the connecting flange (5), and the longitudinal sections of the four groups of cross steel plates (7) are all quarter-circular plate structures.

6. The connection structure between the truss and steel piles of a large offshore photovoltaic platform according to claim 1 is characterized by: A U-shaped groove is formed at the end of the platform supporting steel pipe (8), and the end of the cross steel plate (7) away from the center of the connecting flange (5) is located inside the U-shaped groove.

7. The connection structure between the truss and steel piles of a large offshore photovoltaic platform according to claim 2 is characterized by: The outer sides of the pile top flange (3), the connecting bolts (4), the connecting flange (5) and the fixing bolts (9) are all coated with a paint layer.

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