Pile top hinge support connecting structure of offshore photovoltaic pile foundation
Patent Information
- Application Number
- CN202521925742.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2026-08-11
- Estimated Expiration
- 2035-09-08
AI Technical Summary
[0003]然而，针对海上光伏项目，现阶段还处于一个空白阶段，如何能够在海上进行光伏网架和桩基的稳定连接，由此来辅助海上光伏项目的正常进行，是海上光伏项目的重点和难点，也是施工过程中必须要保证的工作之一
[0019]本公开提供的海上光伏网架和桩基的焊接结构，桩基的第一端深入海中固定，能够充分利用海底地质条件，为整个结构提供稳定的基础支撑。海底的土壤或岩石能够承受桩基传递的巨大荷载，确保桩基在海浪冲击、海风作用以及光伏网架自身重力等多种外力作用下，保持稳定而不发生位移或倾覆。桩基的第二端伸出海面之上，为后续连接组件和光伏网架的安装提供了便利条件。连接组件的铰接支座的存在使得整个结构具备一定的变形量。在海上复杂的环境中，海浪、海流和海风的方向和强度时刻处于变化之中，光伏网架会受到不同方向的外力作用。铰接支座的上支座与下支座之间能够发生相对转动，具有显著的卸荷作用，使得光伏网架能够在一定程度上适应外力方向的变化，避免因外力集中而导致的局部应力过大，从而保护结构的完整性，延长其使用寿命。法兰和下法兰的焊接可采用全熔透坡口焊，提供了可靠的连接强度。通过将下法兰与桩基连接，上法兰与下法兰连接，再将下支座与上法兰焊接，形成了一个多层次的连接体系，这种连接方式能够有效地传递和分散荷载，确保光伏网架的荷载能够顺利地传递到桩基，提升了连接的稳定性。桩基的容纳空间的内壁上设有多个内肋板，增加了桩基连接下法兰位置处的结构强度，使得桩基第二端能够承受更多的载荷；同时，能够提升桩基第二端的抗扭能力，进而提升连接结构的稳定性。此外，通过使承插式连接件穿过插孔伸入容纳空间中，且在容纳空间中多个内肋板与承插式连接件在桩基的周向上错位设置，在桩基的径向上具有重叠部分，保证连接强度的同时能够避免内肋板与承插式连接件之间产生干涉，便于下法兰与桩基之间的装配。
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Abstract
Description
Technical Field
[0001] This disclosure relates to the field of offshore photovoltaic technology, and more specifically, to a pile top hinge support connection structure for offshore photovoltaic pile foundations. Background Technology
[0002] For offshore power generation projects, achieving a stable connection between large components and pile foundations is a relatively difficult engineering challenge. In addition to facilitating the connection between large components and pile foundations, it is necessary to further ensure the connection strength between the large components and pile foundations to avoid safety issues and ensure sufficient service life.
[0003] However, there is currently no field for offshore photovoltaic projects. How to achieve a stable connection between the photovoltaic grid and the pile foundation at sea to support the normal operation of offshore photovoltaic projects is the key and difficult point of these projects, and it is also one of the essential tasks that must be ensured during construction.
[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0005] The purpose of this disclosure is to provide a hinged support connection structure for offshore photovoltaic pile foundations, which improves the stability of the connection structure.
[0006] According to one aspect of this disclosure, a pile-top hinged support connection structure for an offshore photovoltaic (PV) pile foundation is provided, the pile-top hinged support connection structure for the offshore PV pile foundation comprising:
[0007] The pile foundation includes a first end and a second end in opposite directions. The first end is used to fix it in the sea, and the second end is used to extend above the sea surface. The second end forms a receiving space, and the inner wall of the receiving space is provided with a plurality of inner ribs.
[0008] A connecting assembly includes a hinged support, an upper flange, and a lower flange. The hinged support comprises an upper support and a lower support hinged together. The lower support is welded to the top of the upper flange. The upper flange is connected to the lower flange, and the lower flange is connected to the pile foundation. The upper flange is provided with a socket-type connector, and the lower flange is provided with a insertion hole. The second end of the pile foundation is provided with a receiving space. The socket-type connector extends into the receiving space through the insertion hole. In the receiving space, the plurality of inner ribs and the socket-type connector are staggered in the circumferential direction of the pile foundation and have overlapping portions in the radial direction of the pile foundation.
[0009] A photovoltaic grid frame, wherein the photovoltaic grid frame is mounted on the upper support.
[0010] In one exemplary embodiment of this disclosure, the plurality of inner ribs are distributed around the inner wall of the receiving space, and the included angle between two adjacent inner ribs is the same.
[0011] In one exemplary embodiment of this disclosure, the plurality of inner ribs are welded to the inner wall of the accommodating space.
[0012] In one exemplary embodiment of this disclosure, the plurality of inner ribs are identical ribs.
[0013] In one exemplary embodiment of this disclosure, the accommodating space is reduced in size along the axial direction of the pile foundation towards the second end in the radial direction of the pile foundation.
[0014] In one exemplary embodiment of this disclosure, the plurality of inner ribs are located at the end of the second end and are flush with the edge of the second end of the pile foundation.
[0015] In one exemplary embodiment of this disclosure, the lower flange is provided with a plurality of lower ribs, which connect the lower flange and the pile foundation, and are welded to the bottom surface of the upper flange and the outer peripheral surface of the pile foundation.
[0016] In one exemplary embodiment of this disclosure, the plurality of lower ribs are distributed around the circumference of the pile foundation, and the included angle between two adjacent lower ribs is the same.
[0017] In one exemplary embodiment of this disclosure, the inner rib and the lower rib have an overlapping portion in the axial direction of the pile foundation.
[0018] In one exemplary embodiment of this disclosure, the socket-type connector includes a plurality of socket-type ribs, the number of inner ribs being the same as the number of socket-type ribs; in the circumferential direction of the pile foundation, the plurality of socket-type ribs are alternately arranged with the plurality of socket-type ribs.
[0019] The welded structure of the offshore photovoltaic grid and pile foundation disclosed herein features a pile foundation with the first end fixed deep into the sea, fully utilizing seabed geological conditions to provide stable foundation support for the entire structure. The seabed soil or rock can withstand the enormous load transmitted by the pile foundation, ensuring its stability without displacement or overturning under various external forces such as wave impact, sea wind, and the photovoltaic grid's own weight. The second end of the pile foundation extends above the sea surface, facilitating the subsequent installation of connecting components and the photovoltaic grid. The presence of hinged supports for the connecting components allows the entire structure to have a certain degree of deformation. In the complex marine environment, the direction and intensity of waves, currents, and sea winds are constantly changing, subjecting the photovoltaic grid to external forces from different directions. The upper and lower supports of the hinged supports can rotate relative to each other, providing significant load relief and allowing the photovoltaic grid to adapt to changes in the direction of external forces to a certain extent. This avoids excessive local stress caused by concentrated external forces, thus protecting the structural integrity and extending its service life. The flanges and lower flanges can be welded using full-penetration bevel welding, providing reliable connection strength. By connecting the lower flange to the pile foundation, the upper flange to the lower flange, and then welding the lower support to the upper flange, a multi-layered connection system is formed. This connection method can effectively transfer and distribute loads, ensuring that the load of the photovoltaic grid can be smoothly transferred to the pile foundation, thus improving the stability of the connection. Multiple inner ribs are provided on the inner wall of the pile foundation's receiving space, increasing the structural strength at the lower flange connection point and allowing the second end of the pile foundation to withstand more loads. Simultaneously, it enhances the torsional resistance of the second end of the pile foundation, thereby improving the stability of the connection structure. Furthermore, by having the socket-type connector extend into the receiving space through the insertion hole, and by staggering the multiple inner ribs and socket-type connectors circumferentially within the receiving space while overlapping radially, the connection strength is ensured while preventing interference between the inner ribs and socket-type connectors, facilitating the assembly of the lower flange and the pile foundation.
[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.
[0022] Figure 1 This is a schematic diagram of a welded structure for a photovoltaic grid and pile foundation provided in one embodiment of the present disclosure.
[0023] Figure 2 for Figure 1 A cross-sectional view at point AA.
[0024] Figure 3 for Figure 1 Cross-sectional view at BB.
[0025] Figure 4 This is a schematic diagram of a lower rib plate provided in one embodiment of the present disclosure.
[0026] Figure 5 This is a schematic diagram of a socket-type connector provided in one embodiment of the present disclosure.
[0027] Figure 6 This is a schematic diagram of a socket-type rib provided in one embodiment of the present disclosure.
[0028] Explanation of reference numerals in the attached figures:
[0029] 10. Pile foundation; 110. Inner rib plate; 20. Photovoltaic grid; 210. Bolt ball; 220. Pipe fitting; 30. Connecting assembly; 310. Hinged support; 311. Upper support; 312. Lower support; 313. Slide plate; 320. Upper flange; 330. Lower flange; 340. Lower rib plate; 350. Socket connector; 351. Socket rib plate; 360. Upper rib plate. Detailed Implementation
[0030] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.
[0031] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.
[0032] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.
[0033] This disclosure provides a welded structure for an offshore photovoltaic grid and pile foundation, such as... Figure 1 As shown, the welded structure of the offshore photovoltaic grid and pile foundation includes: pile foundation 10, connecting assembly 30, and photovoltaic grid 20. The pile foundation 10 includes a first end and a second end, which are opposite to each other. The first end is used to fix it in the sea, and the second end is used to extend above the sea surface. The second end forms a receiving space, and the inner wall of the receiving space is provided with multiple inner ribs 110. The connecting assembly 30 includes a hinged support 310, an upper flange 320, and a lower flange 330. The hinged support 310 includes an upper support 311 and a lower support 312 that are hinged together. The lower support 312 is connected to the upper flange 330. The top of flange 320 is welded, and the upper flange 320 is connected to the lower flange 330. The lower flange 330 is connected to the pile foundation 10. The upper flange 320 is provided with a socket connector 350, and the lower flange 330 is provided with a socket hole. The second end of the pile foundation 10 is provided with a receiving space. The socket connector 350 extends into the receiving space through the socket hole. In the receiving space, multiple inner ribs 110 and the socket connector 350 are staggered in the circumferential direction of the pile foundation 10 and have overlapping parts in the radial direction of the pile foundation 10. The photovoltaic grid 20 is provided on the upper support 311.
[0034] The welded structure of the offshore photovoltaic grid and pile foundation disclosed herein features a pile foundation 10 whose first end is fixed deep into the sea, fully utilizing seabed geological conditions to provide stable foundation support for the entire structure. The seabed soil or rock can withstand the enormous load transmitted by the pile foundation 10, ensuring its stability without displacement or overturning under various external forces such as wave impact, sea wind, and the weight of the photovoltaic grid 20 itself. The second end of the pile foundation 10 extends above the sea surface, facilitating the subsequent installation of the connecting components 30 and the photovoltaic grid 20. The presence of the hinged support 310 of the connecting components 30 allows the entire structure to have a certain amount of deformation. In the complex marine environment, the direction and intensity of waves, currents, and sea winds are constantly changing, and the photovoltaic grid 20 will be subjected to external forces from different directions. The upper support 311 and lower support 312 of the hinged support 310 can rotate relative to each other, providing a significant load-bearing effect. This allows the photovoltaic grid 20 to adapt to changes in the direction of external forces to a certain extent, avoiding excessive local stress caused by concentrated external forces, thus protecting the integrity of the structure and extending its service life. The welding of the flange and lower flange 330 can use full-penetration bevel welding, providing reliable connection strength. By connecting the lower flange 330 to the pile foundation 10, the upper flange 320 to the lower flange 330, and then welding the lower support 312 to the upper flange 320, a multi-layered connection system is formed. This connection method can effectively transfer and distribute the load, ensuring that the load of the photovoltaic grid 20 can be smoothly transferred to the pile foundation 10, improving the stability of the connection. Multiple inner ribs 110 are provided on the inner wall of the receiving space of the pile foundation 10, which increases the structural strength at the location where the pile foundation 10 connects to the lower flange 330, allowing the second end of the pile foundation 10 to withstand more loads. At the same time, it can improve the torsional resistance of the second end of the pile foundation 10, thereby improving the stability of the connection structure. In addition, by allowing the socket connector 350 to extend into the receiving space through the insertion hole, and by staggering the multiple inner ribs 110 and the socket connector 350 in the circumferential direction of the receiving space, and having an overlapping part in the radial direction of the pile foundation 10, the connection strength is ensured while avoiding interference between the inner ribs 110 and the socket connector 350, which facilitates the assembly between the lower flange 330 and the pile foundation 10.
[0035] like Figure 1As shown, the hinged support 310 includes an upper support 311, a lower support 312, and a sliding plate 313 located between the upper support 311 and the lower support 312. The sliding plate 313 may be made of plastic or metal. The hinged support 310 can be a spherical hinge support, and the sliding plate 313 is a spherical crown plate. Specifically, the spherical hinge support includes an upper support 311, a lower support 312, and a spherical crown plate located between the upper support 311 and the lower support 312. The upper support 311 and the lower support 312 can move relatively within a small range through the spherical crown plate, thereby absorbing the movement of the photovoltaic grid 20 relative to the pile foundation 10. This transforms the rigid connection structure connecting the photovoltaic grid 20 and the pile foundation 10 into a flexible connection structure with a certain deformation allowance, thereby improving the seismic performance between the photovoltaic grid 20 and the pile foundation 10, and thus enhancing the connection strength and reliability. It should be noted that this disclosure does not limit the type and specific structure of the hinged support 310, and it can be other seismic-resistant supports.
[0036] The spherical hinge support can have a height of 135mm, the upper support 311 can have a width of 550mm, the lower support 312 can have a width of 450mm, the width of the extended portion of the upper support 311 can have a width of 136mm, and the height of the lower support 312 can have a height of 97mm.
[0037] like Figure 1 and Figure 2 As shown, the photovoltaic grid frame 20 includes a bolt ball 210 and a pipe fitting 220. The pipe fitting 220 is bolted to the fixing ball and then welded. The bolt ball 210 is fixedly mounted on the upper support 311 via an upper rib plate 360. The fixing ball and the upper rib plate 360 can be fixedly connected by welding. When the bolt ball 210 and the pipe fitting 220 are threaded together, a threaded hole can be provided on the bolt ball 210, and an external thread can be provided on the pipe fitting 220. Then, the end of the pipe fitting 220 is screwed into the thread to achieve the bolted connection between the pipe fitting 220 and the fixing ball. After the bolted connection is completed, the parts where the pipe fitting 220 and the fixing ball are bolted together are welded together. Alternatively, a nut structure can be provided on the bolt ball 210, and an external thread can be provided on the pipe fitting 220. Then, the end of the pipe fitting 220 is screwed into the nut structure to achieve the bolted connection between the pipe fitting 220 and the fixing ball.
[0038] Among them, the outer diameter of the bolt ball 210 can be 500mm and the inner diameter can be 400mm; the diameter of the pipe fitting 220 can be 250mm.
[0039] like Figure 2 As shown, multiple upper ribs 360 are distributed around the circumference of the bolt ball 210, and the included angle between two adjacent upper ribs 360 is the same. The uniformly distributed upper ribs 360 make the stiffness of the bolt ball 210 node tend to be consistent in all directions. When subjected to asymmetric loads, the stress difference between the upper ribs 360 is small, which can effectively reduce the torsional effect.
[0040] In this structure, multiple inner ribs 110 are distributed around the inner wall of the receiving space, and the included angle between two adjacent inner ribs 110 is the same. By making the multiple inner ribs 110 evenly distributed around the inner wall of the receiving space, the circumferential stiffness of the receiving space is uniformly distributed, which can effectively avoid local stress concentration and significantly improve the bending stiffness of the second end of the pile foundation 10.
[0041] Multiple inner ribs 110 are welded to the inner wall of the accommodating space to form a rigid connection, ensuring the supporting function of the inner ribs 110. Double-sided fillet welds can be used for welding, allowing the inner ribs 110 to effectively transfer the load of the lower flange 330. Furthermore, welding improves the structural durability, avoids the loosening problems of bolted connections under long-term vibration, reduces maintenance costs, and is suitable for unmanned offshore operations.
[0042] Among them, multiple inner ribs 110 are identical ribs. The identical ribs ensure that the stiffness of each inner rib 110 is consistent, and the difference in deformation between each rib is small, ensuring that the supporting function of the accommodating space is evenly exerted. At the same time, the identical ribs can be stamped and formed using the same set of molds or cut and formed using the same process, thereby improving processing efficiency.
[0043] Along the axial direction of the pile foundation 10, the accommodating space can be reduced in the radial direction of the pile foundation 10 towards the second end, forming a conical inner cavity, which can improve the bearing capacity of the pile foundation 10 and enhance the structural strength of the second end. Of course, the pile foundation 10 can also be a pipe fitting 220 of equal diameter, and this disclosure does not limit it.
[0044] In this design, multiple inner ribs 110 are located at the ends of the second end, flush with the edge of the second end of the pile foundation 10. This allows the bottom of the lower flange 330 to directly contact the top of the inner ribs 110 after the socket connector 350 is inserted, providing support for the lower flange 330 and further enhancing the structural strength at the connection point between the lower flange 330 and the pile foundation 10. Of course, there may be gaps between the ends of the multiple inner ribs 110 at the second end and the edge of the second end of the pile foundation 10, for example, gaps less than 30 mm; this disclosure does not impose any limitations on this.
[0045] like Figure 1 and Figure 3As shown, the lower flange 330 is provided with multiple lower ribs 340. These lower ribs 340 connect the lower flange 330 to the pile foundation 10 and are welded to the bottom surface of the upper flange 320 and the outer circumferential surface of the pile foundation 10. The lower ribs 340 further enhance the connection strength and stability between the lower flange 330 and the pile foundation 10. The lower ribs 340 can effectively disperse the stress at the connection between the lower flange 330 and the pile foundation 10, avoiding stress concentration. Through welding to the bottom surface of the lower flange 330 and the outer circumferential surface of the pile foundation 10, the lower ribs 340 form a stable triangular structure, effectively transferring the load from the lower flange 330 to the pile foundation 10, improving the load-bearing capacity and deformation resistance of the connection. Simultaneously, the presence of the lower ribs 340 also increases the stiffness of the connection, reducing deformation caused by external forces. In addition, when subjected to torsional force, the lower rib plate 340 can work together to resist torsion, prevent relative rotation between the lower flange 330 and the pile foundation 10, ensure the stability of the entire connection structure, and guarantee the stability of the connection between the photovoltaic grid 20 and the pile foundation 10.
[0046] Multiple lower ribs 340 are distributed around the circumference of the pile foundation 10, with adjacent lower ribs 340 having the same included angle. The uniformly distributed lower ribs 340 ensure the uniform stress distribution between the lower flange 330 and the pile foundation 10 in all directions. The uniform distribution also enhances the overall stability and deformation resistance of the connection structure. When subjected to external forces such as sea winds and waves, the uniformly distributed lower ribs 340 work together to prevent deformation of the connection structure and ensure the reliability of the connection between the photovoltaic grid 20 and the pile foundation 10.
[0047] In the axial direction of the pile foundation 10, the inner rib plate 110 and the lower rib plate 340 have an overlapping portion. That is, the inner rib plate 110 and the lower rib plate 340 are formed on the inner and outer walls at the same height position of the pile foundation 10, respectively. The inner rib plate 110 and the lower rib plate 340 form a composite reinforcement structure, which can improve the bending stiffness and fatigue resistance of the second end of the pile foundation 10 and improve the reliability of the connection structure.
[0048] Among them, such as Figure 4 As shown, the lower rib plate 340 can be in the form of a trapezoidal structure. The height of the side of the lower rib plate 340 that is welded to the pile foundation 10 can be 700mm, the height of the opposite side can be 300mm, the width of the top can be 150mm, the width of the bottom can be 30mm, the height of the inclined side connecting the bottom and the side can be 200mm and the width can be 120mm, and the thickness of the lower rib plate 340 can be 20mm.
[0049] The upper flange 320 can have a diameter of 940mm, and the lower flange 330 can have a diameter of 1100mm; the upper flange 320 can have a thickness of 40mm, and the lower flange 330 can have a thickness of 30mm.
[0050] like Figure 1 , Figure 3 and Figure 5 As shown, the upper flange 320 is equipped with a socket-type connector 350, the lower flange 330 has a socket, and the second end of the pile foundation 10 has a receiving space. The socket-type connector 350 extends into the receiving space through the socket. During installation, the socket-type connector 350 can be accurately inserted into the socket of the lower flange 330 and the receiving space of the pile foundation 10, ensuring the accurate relative positions of the upper flange 320, lower flange 330, and pile foundation 10. Through the cooperation between the socket-type connector 350, the socket, and the receiving space, the load transmitted from the photovoltaic grid 20 can be transferred from the lower flange 330 to the pile foundation 10. This connection method can withstand large axial and lateral loads, improving the load-bearing capacity of the connection structure. In addition, when it is necessary to repair or replace the photovoltaic grid 20 or the connecting components 30, the socket-type connector 350 can be pulled out relatively easily for the corresponding operations. This reduces maintenance costs and difficulty, and improves the maintainability and economy of offshore photovoltaic projects.
[0051] The shape and size of the socket are matched with the shape and size of the cross-section of the socket-type connector 350 along the axis perpendicular to the upper flange 320. This ensures that the socket-type connector 350 can be tightly inserted and pass through the socket, thereby ensuring that the socket-type connector 350 is firmly locked in the predetermined position after insertion and will not easily fall off or shift due to external forces. Furthermore, in marine environments, where the connection structure is subjected to frequent vibrations and impacts, a smaller gap can reduce stress concentration and wear, lower the risk of fatigue failure, and extend the service life of the connection structure. At the same time, it allows construction personnel to more easily insert the socket-type connector 350 into the socket, reducing adjustment and correction work during installation and ensuring that the connection structure can be installed accurately according to design requirements.
[0052] The socket-type connector 350 further comprises eight socket-type ribs 351, with an included angle of 45° between two adjacent socket-type ribs 351. The socket-type ribs 351 can be plate-shaped, for example, they can be flat plates. Of course, the number of socket-type ribs 351 can also be three, four, five, or more, and this disclosure does not limit this. Furthermore, the gap between the socket-type connector 350 and the sidewall of the accommodating space along the radial direction of the pile foundation 10 is less than 20 mm, for example, 20 mm, 18 mm, 16 mm, 15 mm, 13 mm, 10 mm, etc., which are not listed here. Controlling the gap between the socket-type connector 350 and the sidewall of the accommodating space along the radial direction of the pile foundation 10 to within 20 mm can effectively improve the lateral displacement resistance and overall stiffness of the connection structure, ensuring a firm and reliable connection between the photovoltaic grid 20 and the pile foundation 10.
[0053] Among them, such as Figure 3 As shown, the number of inner ribs 110 is the same as the number of socket ribs 351. Multiple socket ribs 351 are alternately arranged along the circumference of the pile foundation 10. This alternation of socket ribs 351 ensures a uniform circumferential stiffness distribution within the accommodating space, effectively preventing localized stress concentration. The uniformly distributed inner ribs 110 also improve the bending stiffness at the second end of the pile foundation 10, enhancing the reliability of the connection. Furthermore, during assembly, the alternation between the inner ribs 110 and socket ribs 351 allows for quick assessment of the insertion depth, improving assembly efficiency.
[0054] Among them, such as Figure 6 As shown, the socket-type rib 351 can be in the form of a trapezoidal structure. The height of the inner side of the socket-type rib 351 can be 530mm, the height of the opposite outer side can be 130mm, the width of the top can be 362mm, the width of the bottom can be 62mm, the height of the inclined side connecting the bottom and the outer side can be 400mm, and the thickness of the socket-type rib 351 can be 20mm.
[0055] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.
Claims
1. A hinged support connection structure for the top of a marine photovoltaic pile foundation, characterized in that, include: The pile foundation includes a first end and a second end in opposite directions. The first end is used to fix it in the sea, and the second end is used to extend above the sea surface. The second end forms a receiving space, and the inner wall of the receiving space is provided with a plurality of inner ribs. A connecting assembly includes a hinged support, an upper flange, and a lower flange. The hinged support comprises an upper support and a lower support hinged together. The lower support is welded to the top of the upper flange. The upper flange is connected to the lower flange, and the lower flange is connected to the pile foundation. The upper flange is provided with a socket-type connector, and the lower flange is provided with a insertion hole. The second end of the pile foundation is provided with a receiving space. The socket-type connector extends into the receiving space through the insertion hole. In the receiving space, the plurality of inner ribs and the socket-type connector are staggered in the circumferential direction of the pile foundation and have overlapping portions in the radial direction of the pile foundation. A photovoltaic grid frame, wherein the photovoltaic grid frame is mounted on the upper support.
2. The connection structure according to claim 1, characterized in that, The plurality of inner ribs are distributed around the inner wall of the accommodating space, and the included angle between two adjacent inner ribs is the same.
3. The connection structure according to claim 1, characterized in that, The plurality of inner ribs are welded to the inner wall of the accommodating space.
4. The connection structure according to claim 1, characterized in that, The multiple inner ribs are the same ribs.
5. The connection structure according to claim 1, characterized in that, Along the axial direction of the pile foundation, the accommodating space decreases in size radially toward the second end of the pile foundation.
6. The connection structure according to claim 1, characterized in that, The plurality of inner ribs are located at the ends of the second end and are flush with the edge of the second end of the pile foundation.
7. The connection structure according to claim 1, characterized in that, The lower flange is provided with multiple lower ribs, which connect the lower flange to the pile foundation and are welded to the bottom surface of the upper flange and the outer peripheral surface of the pile foundation.
8. The connection structure according to claim 7, characterized in that, The plurality of lower ribs are distributed around the circumference of the pile foundation, and the included angle between two adjacent lower ribs is the same.
9. The connection structure according to claim 7, characterized in that, In the axial direction of the pile foundation, the inner rib plate and the lower rib plate have an overlapping portion.
10. The connection structure according to claim 1, characterized in that, The socket-type connector includes multiple socket-type ribs, and the number of inner ribs is the same as the number of socket-type ribs; in the circumferential direction of the pile foundation, the multiple socket-type ribs are alternately arranged.