A flexible support structure suitable for fish-light complementary super span and a construction method thereof

Abstract

The application discloses a flexible support structure suitable for fish-light complementary super-large span, which comprises edge supports and component cables, the edge supports are arranged at two ends of the flexible support structure respectively, the number of the component cables is at least two and the component cables are arranged in parallel, the two ends of the component cables are fixedly connected with the edge supports, a bearing cable is arranged below the component cables, the two ends of the bearing cable are fixedly connected with the edge supports, and a stable truss is arranged between the bearing cable and the component cable; the method comprises four steps of S1-S4. The application can realize super-large span layout through a double-layer cable net self-balancing structure, does not need to occupy fishpond breeding space, and is targetedly adapted to the fishpond scene in terms of wind resistance and corrosion resistance.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic support technology, and in particular relates to a flexible support structure suitable for ultra-large span solar-fishery complementary projects and its construction method. Background Technology

[0002] Photovoltaic (PV) brackets, often referred to as the "skeleton" of a photovoltaic (PV) power plant, are specialized structural components designed and installed to support and secure PV modules within a PV power generation system. They are a crucial supporting structure in PV systems, and safety and ease of installation are their core requirements.

[0003] With the large-scale promotion of fish-farm-solar hybrid projects, the rationality of the layout of solar power supports in fishponds has become a key factor restricting project development. Existing solar power supports for fishponds mostly adopt rigid support structures. Due to structural strength limitations, the spans are generally small (usually ≤20m). To ensure the stability of the supports, a large number of intermediate piles need to be laid in the fishpond. These piles not only occupy fishpond aquaculture space, interfering with fish habitats, feeding operations, and boat passage, but also damage the aquatic environment of the fishpond, increasing construction difficulty and cost. Furthermore, conventional supports are not specifically designed for the corrosive environment of fishpond aquaculture water and strong wind conditions outdoors, making them prone to corrosion, wind vibration, and other problems, resulting in poor adaptability. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned technical problems in the prior art and to provide a flexible support structure and its construction method suitable for ultra-large span fish-solar complementary projects. It can achieve ultra-large span deployment through a double-layer cable net self-balancing structure without occupying fishpond aquaculture space, and its wind resistance and corrosion resistance are specifically adapted to fishpond scenarios.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A flexible support structure suitable for ultra-large span fishery-solar complementary projects is characterized by: including side supports and component cables. The side supports are respectively located at both ends of the flexible support structure. The number of component cables is at least two and arranged in parallel. Both ends of the component cables are fixedly connected to the side supports. A load-bearing cable is provided below the component cables. Both ends of the load-bearing cable are fixedly connected to the side supports. A stabilizing truss is provided between the load-bearing cable and the component cables.

[0006] Furthermore, the stabilizing truss includes an upper truss strut, a lower truss strut, a truss vertical member, and a truss diagonal member. The two ends of the truss vertical member are fixedly connected to the upper truss strut and the lower truss strut, respectively. One end of the truss diagonal member is connected to the upper end of the truss vertical member, and the other end of the truss diagonal member is connected to the lower end of the adjacent truss vertical member.

[0007] Furthermore, U-shaped cable clips are provided at the top and bottom of the stabilizing truss.

[0008] Furthermore, the flexible support structure has an intermediate support in the middle, which includes a central beam, a central column, and X-shaped struts. The central beam is located on the central column, and the X-shaped struts are located between adjacent central columns.

[0009] Furthermore, the flexible support structure also includes wind-resistant cables, with one end of the wind-resistant cables located on the side supports or the middle supports, and the other end of the wind-resistant cables located on the stabilizing truss.

[0010] Furthermore, the side support includes side beams, side columns, stay cables, and side anchor piles. The side beams are set on the side columns, the side anchor piles are set on the ground, one end of the stay cable is connected to the side beam, and the other end of the stay cable is connected to the side anchor pile.

[0011] Furthermore, the top of the side beam is provided with a side support column, and the top of the side support column and the top of the side beam are provided with anchor plates.

[0012] Furthermore, the component cable is equipped with connectors to connect the photovoltaic module.

[0013] This invention also discloses a construction method for a flexible support structure suitable for ultra-large span fish-solar hybrid structures, characterized by the following steps: S1. Install prefabricated side columns, middle columns and side anchor piles according to the predetermined positions. Install the side beams onto the side columns. Then weld the side support columns and anchor plates. Install the stay cables. Connect the two ends of the stay cables to the anchor plates on the side anchor piles and side beams respectively. Then tension them to the design cable force. Then install the middle beams onto the middle columns. Then weld the middle support columns. S2. Install the component cable, connect its two ends to the corresponding two anchor plates respectively, then tension it to the design cable force, splice the stabilizing truss and install it at the predetermined position below the component cable, connect the load-bearing cable below the stabilizing truss, the load-bearing cable passes through the reserved hole in the middle beam and is finally anchored to the anchor plates on the side beams at both ends, then tension it to the design cable force. S3. After installing the photovoltaic module to the predetermined position above the module cable using the connector, install the wind-resistant cable, with one end connected to the bottom of the stabilizing truss and the other end connected to the column. S4. Repeat the above steps until the photovoltaic array is installed.

[0014] The present invention, by adopting the above-described technical solution, has the following beneficial effects: 1. Breaking through span limitations and achieving efficient compatibility between fish farming and solar power: This invention adopts a double-layer cable net self-balancing structure with a single span of 40-60m. No intermediate pile foundations are laid in the fishpond, and the bottom clearance is ≥3m. This completely avoids the occupation of fishpond aquaculture space by pile foundations, and does not interfere with fish habitat, feeding operations, or boat passage. It effectively solves the compatibility problem between ultra-large span photovoltaic support and fishery production, and greatly improves the space utilization rate of fish farming and solar power complementary projects.

[0015] 2. Convenient and efficient construction, reducing construction costs and environmental impact: The construction process only requires laying the foundation on the side of the pond embankment, eliminating the need for pile foundation construction inside the fishpond, which simplifies the construction process and shortens the construction cycle; at the same time, it avoids the damage to the aquatic environment of the fishpond caused by pile foundation construction, reduces interference with fishery production during construction, and lowers construction costs and environmental remediation costs.

[0016] 3. Reasonable structure and strong practicality: The spatial self-balancing cable net system takes into account both the load-bearing capacity and flexibility of the support frame. It can meet the installation requirements of photovoltaic modules and adapt to the slight undulations of fishpond terrain, making it suitable for fishponds of different sizes and even irregular shapes. The overall structural design is simple and easy to maintain. It can be widely used in various fishery-solar complementary projects and has good promotional value.

[0017] 4. Significant economic and environmental benefits: The ultra-long span layout reduces the amount of basic engineering work and lowers the project construction cost; at the same time, it realizes the coordinated development of photovoltaic power generation and aquaculture, which not only improves land use efficiency, but also increases the dual benefits of aquaculture and power generation, which is in line with the industrial trend of green, low-carbon and sustainable development. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of a flexible support structure suitable for ultra-large span fish-solar complementary projects according to the present invention; Figure 2 This is a side view of the flexible photovoltaic support structure in this invention; Figure 3 This is a cross-sectional view of the side support in this invention; Figure 4 This is a cross-sectional view of the intermediate support in this invention; Figure 5 This is a cross-sectional view of the stabilizing truss in this invention; Figure 6 for Figure 3 Enlarged view of the structure at point A in the middle; Figure 7 for Figure 4 Enlarged view of the structure at point B; Figure 8 for Figure 5 Enlarged view of the structure at point C; Figure 9 This is a schematic diagram of the structure connecting the photovoltaic module and the module cable; Figure 10 This is a flowchart illustrating the construction method for flexible support structures.

[0019] In the diagram, 1-side support; 2-component cable; 3-load-bearing cable; 4-stabilizing truss; 5-upper strut of truss; 6-lower strut of truss; 7-vertical member of truss; 8-diagonal member of truss; 9-U-shaped cable clamp; 10-intermediate support; 11-middle beam; 12-middle column; 13-X-shaped strut; 14-wind-resistant cable; 15-side beam; 16-side column; 17-stayed cable; 18-side anchor pile; 19-side support column; 20-anchor plate; 21-middle support column; 22-photovoltaic module; 23-connector. Detailed Implementation

[0020] like Figure 1 and Figure 2 As shown, this invention discloses a flexible support structure suitable for ultra-large span fishpond-solar hybrid projects, comprising side supports 1 and component cables 2. The side supports 1 are respectively located at both ends of the flexible support structure. There are at least two component cables 2 arranged in parallel. Photovoltaic modules 22 are generally fixed to the component cables 2. Both ends of the component cables 2 are fixedly connected to the side supports 1. A load-bearing cable 3 is located below the component cables 2, and both ends of the load-bearing cable 3 are fixedly connected to the side supports 1. A stabilizing truss 4 is provided between the load-bearing cable 3 and the component cables 2. This application achieves ultra-large span deployment through a double-layer cable net self-balancing structure, eliminating the need to occupy fishpond aquaculture space. The construction process does not damage the fishpond aquatic environment, and its wind resistance and corrosion resistance are specifically adapted to fishpond scenarios. This solves the compatibility problem between ultra-large span fishpond photovoltaic supports and fishery production, improving the space utilization and construction efficiency of fishpond-solar hybrid projects. While ensuring stability, the amount of steel used and foundation engineering is greatly reduced, which is conducive to large-scale promotion.

[0021] like Figure 5 As shown, in one implementation, the stabilizing truss 4 includes an upper truss strut 5, a lower truss strut 6, a vertical truss member 7, and a diagonal truss member 8. The two ends of the vertical truss member 7 are fixedly connected to the upper truss strut 5 and the lower truss strut 6, respectively. One end of the diagonal truss member 8 is connected to the upper end of the vertical truss member 7, and the other end of the diagonal truss member 8 is connected to the lower end of the adjacent vertical truss member 7. Through this arrangement, the flexible support structure of the entire area can be connected into a whole, and the flexible support can transfer the weight of the components to the load-bearing cable 3, sharing the pressure on the component cable 2, thereby improving stability.

[0022] like Figure 8 As shown, specifically, the top and bottom of the stabilizing truss 4 are equipped with U-shaped cable clips 9. This arrangement facilitates the connection between the stabilizing truss 4 and the component cables 2 and the load-bearing cables 3, improving stability and ensuring convenient and effective connection.

[0023] like Figure 4 and Figure 7As shown, as one implementation method, a central support 10 is provided in the middle of the flexible support structure. The central support 10 includes a central beam 11, a central column 12, and X-shaped struts 13. The central beam 11 is located on the central column 12, and the X-shaped struts 13 are located between adjacent central columns 12. Through the above arrangement, excessive deformation in the middle can be prevented when the span of the flexible support structure is too large. The component cable 2 is connected to the central beam 11 by a clamp, and the load-bearing cable 3 passes through the reserved round hole in the central beam 11. The central column 12 is a pile-column integrated structure used to support the central beam 11. The X-shaped struts 13 set between two adjacent central columns 12 can improve the stability of the central column 12 and increase its load-bearing capacity. The X-shaped struts 13 are connected to the central column 12 by clamps to improve the overall stability of the structure. The central column 12 is fixedly connected to the central beam 11 at the top. The central beam 11 is continuous, and a central support column 21 is welded to the top of the central beam 11 to adjust the height difference between the two component cables 2, so that the photovoltaic module 22 has a certain tilt angle.

[0024] As one implementation method, the flexible support structure also includes wind-resistant cables 14. One end of the wind-resistant cable 14 is set on the side support 1 or the middle support 10, and the other end of the wind-resistant cable 14 is set on the stabilizing truss 4. Generally, one central column 12 connects four wind-resistant cables 14, and one side column connects two wind-resistant cables 14, which plays a role in resisting wind suction.

[0025] like Figure 3 and Figure 6 As shown, in one implementation, the side support 1 includes a side beam 15, a side column 16, a stay cable 17, and a side anchor pile 18. The side beam 15 is mounted on the side column 16, and the side anchor pile 18 is located on the ground. One end of the stay cable 17 is connected to the side beam 15, and the other end of the stay cable 17 is connected to the side anchor pile 18. The side support 1 is used to fix the component cable 2 and the load-bearing cable 3. By setting the stay cable 17, the load-bearing capacity and overall stability of the side support 1 can be improved, ensuring the reliability of the component cable 2 and the load-bearing cable 3. The side column 16 is an integrated pile-column structure, fixedly connected to the side beam 15 at the top, providing vertical and horizontal support for the system.

[0026] Specifically, a side support column 19 is provided at the top of the side beam 15, and an anchor plate 20 is provided at the top of the side support column 19 and the top of the side beam 15. Through the above arrangement, the height difference between the two module cables 2 can be adjusted, so that the photovoltaic module 22 has a certain tilt angle. The anchor plate 20 facilitates the connection of the module cables 2 and improves the stability of the connection.

[0027] like Figure 9 As shown, in one implementation, the component cable 2 is provided with a connector 23 to connect to the photovoltaic module 22. This arrangement facilitates the connection between the component cable 2 and the photovoltaic module 22, making the connection of the photovoltaic module 22 more stable and reliable.

[0028] Side columns 16 and center columns 12 are PHC pipe piles, both being integrated pile-column structures. Side beams 15, center beams 11, X-shaped struts 13, upper truss struts 5, lower truss struts 6, truss vertical members 7, and truss diagonal members 8 are made of structural steel. Component cables 2, load-bearing cables 3, stay cables 17, and wind-resistant cables 14 are prestressed steel strands. In actual engineering projects, those skilled in the art can select other types of structural steel and cables according to project requirements.

[0029] like Figure 10 As shown, this invention also discloses a construction method for a flexible support structure suitable for ultra-large span fish-solar complementary structures, comprising the following steps: S1. Install the prefabricated side columns 16, middle columns 12 and side anchor piles 18 according to the predetermined positions. Install the side beams 15 onto the side columns 16. Then weld the side support columns 19 and anchor plates 20. Install the stay cables 17. Connect the two ends of the stay cables 17 to the anchor plates 20 on the side anchor piles 18 and the side beams 15 respectively. Then tension them to the design cable force. Then install the middle beams 11 onto the middle columns 12. Then weld the middle support columns 21. S2. Install component cable 2 and connect its two ends to the corresponding two anchor plates 20 respectively. Then tension it to the design cable force and splice the stabilizing truss 4 and install it at the predetermined position below component cable 2. Connect the load-bearing cable 3 below the stabilizing truss 4. The load-bearing cable 3 passes through the reserved hole of the middle beam 11 and is finally anchored to the anchor plates 20 on the side beams 15 at both ends. Then tension it to the design cable force. S3. After installing the photovoltaic module 22 to the predetermined position above the module cable 2 using the connector 23, install the wind-resistant cable 14, with one end connected to the bottom of the stabilizing truss 4 and the other end connected to the column. S4. Repeat the above steps until the photovoltaic array is installed.

[0030] This invention achieves ultra-large span deployment through a double-layer cable net self-balancing structure, eliminating the need to occupy fishpond aquaculture space. The construction process does not damage the fishpond's aquatic environment, and its wind resistance and corrosion resistance are specifically adapted to the fishpond setting. It solves the compatibility problem between ultra-large span fishpond photovoltaic supports and fishery production, improving the space utilization and construction efficiency of fish-solar hybrid projects. While ensuring stability, it significantly reduces steel consumption and foundation engineering, facilitating widespread adoption.

[0031] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A flexible support structure suitable for ultra-large span fish-solar hybrid projects, characterized in that: The structure includes side supports and component cables. The side supports are respectively located at both ends of the flexible support structure. There are at least two component cables arranged in parallel. Both ends of each component cable are fixedly connected to the side supports. A load-bearing cable is provided below each component cable. Both ends of the load-bearing cable are fixedly connected to the side supports. A stabilizing truss is provided between the load-bearing cable and the component cable.

2. The flexible support structure suitable for ultra-large span fish-solar complementary projects according to claim 1, characterized in that: The stabilizing truss includes an upper truss strut, a lower truss strut, a vertical truss member, and a diagonal truss member. The two ends of the vertical truss member are fixedly connected to the upper truss strut and the lower truss strut, respectively. One end of the diagonal truss member is connected to the upper end of the vertical truss member, and the other end of the diagonal truss member is connected to the lower end of the adjacent vertical truss member.

3. The flexible support structure suitable for ultra-large span fish-solar complementary projects according to claim 1, characterized in that: The stabilizing truss is equipped with U-shaped cable clips at both the top and bottom.

4. A flexible support structure suitable for ultra-large span fish-solar complementary projects according to claim 1, characterized in that: The flexible support structure has an intermediate support in the middle, which includes a central beam, a central column and an X-shaped strut. The central beam is located on the central column and the X-shaped strut is located between adjacent central columns.

5. A flexible support structure suitable for ultra-large span fish-solar complementary projects according to claim 4, characterized in that: The flexible support structure also includes a wind-resistant cable, one end of which is located on the side support or the middle support, and the other end of which is located on the stabilizing truss.

6. A flexible support structure suitable for ultra-large span fish-solar complementary projects according to claim 1, characterized in that: The side support includes a side beam, a side column, a stay cable, and a side anchor pile. The side beam is mounted on the side column, the side anchor pile is located on the ground, one end of the stay cable is connected to the side beam, and the other end of the stay cable is connected to the side anchor pile.

7. A flexible support structure suitable for ultra-large span fish-solar complementary projects according to claim 6, characterized in that: The top of the side beam is provided with a side support column, and the top of the side support column and the top of the side beam are provided with anchor plates.

8. A flexible support structure suitable for ultra-large span fish-solar complementary projects according to claim 1, characterized in that: The component cable is equipped with connectors to connect the photovoltaic module.

9. A construction method for a flexible support structure suitable for ultra-large span fish-solar complementary projects, characterized in that, Includes the following steps: S1. Install prefabricated side columns, middle columns and side anchor piles according to the predetermined positions. Install the side beams onto the side columns. Then weld the side support columns and anchor plates. Install the stay cables. Connect the two ends of the stay cables to the anchor plates on the side anchor piles and side beams respectively. Then tension them to the design cable force. Then install the middle beams onto the middle columns. Then weld the middle support columns. S2. Install the component cable, connect its two ends to the corresponding two anchor plates respectively, then tension it to the design cable force, splice the stabilizing truss and install it at the predetermined position below the component cable, connect the load-bearing cable below the stabilizing truss, the load-bearing cable passes through the reserved hole in the middle beam and is finally anchored to the anchor plates on the side beams at both ends, then tension it to the design cable force. S3. After installing the photovoltaic module to the predetermined position above the module cable using the connector, install the wind-resistant cable, with one end connected to the bottom of the stabilizing truss and the other end connected to the column. S4. Repeat the above steps until the photovoltaic array is installed.

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