A trestle structure for intertidal photovoltaics
By using pipe piles and support structures in the tidal flat photovoltaic project, combined with clamps and bolts, the stability and transportation and installation problems of the trestle structure were solved, achieving smooth installation and cost reduction even with construction deviations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWERCHINA HUADONG ENG CORP LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-06-19
AI Technical Summary
In tidal flat photovoltaic projects, the trestle structure has problems in terms of horizontal stability and transportation and installation, especially due to the structural instability and construction difficulty caused by wind and wave loads, as well as the difficulty in transporting materials.
The structure employs pipe piles and supports, with the support columns and steel beams fixed by clamps and bolts to form a stable trestle passage. The main and secondary beams of the trestle are installed using bolt connections, combined with diagonal bracing and steel grating to achieve structural stability and convenient installation.
This enabled the smooth installation of the superstructure even when there were deviations during the construction of the pipe piles, reduced welding work, improved the stability and transportation convenience of the structure, and reduced construction difficulty and cost.
Smart Images

Figure CN224378678U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of marine new energy, and in particular relates to a trestle structure for tidal flat photovoltaics. Background Technology
[0002] Tidal flat photovoltaics refers to the construction of photovoltaic power stations in tidal flats to convert solar energy from the coastline into electricity. Because tidal flat photovoltaics are located in offshore tidal flat areas, their underlying foundation piles need to withstand significant wave and current loads, resulting in high foundation costs. Therefore, it is necessary to minimize the number of foundations to optimize project costs.
[0003] Patent authorization number CN221487280U effectively solves the horizontal bending problem of offshore photovoltaic pile foundations under wind, wave, and ice loads. However, the superstructure of the trestle bridge has poor horizontal stability and high requirements for pile foundation construction, making it unsuitable for tidal flat photovoltaic projects. Furthermore, the tidal flat environment differs from the onshore environment, and trestle bridge structures in tidal flat environments present the following problems:
[0004] Transportation is difficult. Large ships cannot be used to transport materials to the installation area in tidal flats, and the tidal flats along the southeastern coast of my country are mostly composed of silty soil. Therefore, materials need to be transported in smaller pieces as much as possible.
[0005] Structural safety is difficult to meet. Compared to land-based structures, tidal flat piers must withstand greater wind and wave loads, and conventional structures are prone to overturning under significant wind loads.
[0006] The installation of the trestle structure was difficult due to deviations in the pile foundation construction. The tidal flats are located at sea, and the pile driving process is affected by tides, easily causing significant deviations between the overall pile position and design requirements. Therefore, the superstructure design must consider adjustments for errors caused by the pile foundation construction. Utility Model Content
[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a trestle structure for photovoltaic power generation on tidal flats.
[0008] This utility model is implemented as follows: A trestle structure for photovoltaic power generation on tidal flats includes pipe piles and supports installed on the upper part of the pipe piles, a trestle passage installed on the upper part of the supports, and a bridge frame installed on the trestle passage. The supports include clamps, support columns, and support steel beams. The support columns are fixed to the pipe piles by clamps, and the support steel beams are fixed to the support columns by column main beam connecting bolts. The trestle passage includes a trestle main beam, trestle ribs, trestle secondary beams, trestle passage columns, and bridge frame supports. The trestle main beams are fixed to the support steel beams and arranged in two rows side by side. The trestle ribs are installed on the trestle main beams, and the trestle secondary beams are installed on the trestle ribs by secondary beam rib connecting bolts. The trestle passage columns are vertically fixed to the trestle main beams, and the bridge frame supports are horizontally fixed to the inner middle of the trestle passage columns. The bridge frames are respectively fixed to the trestle secondary beams and the bridge frame supports.
[0009] Furthermore, the clamp includes a lower clamp and an upper clamp. The lower clamp is composed of clamp plate one and clamp plate two, with clamp plate one being longer than clamp plate two. The upper clamp is composed of two short clamp plates. The support column is fixed to the lower clamp and the upper clamp by column clamp connecting bolts.
[0010] Furthermore, the support also includes a diagonal brace, one end of which is fixed to a clamp plate by a clamping brace connecting bolt, and the other end is fixed to the support steel beam.
[0011] Furthermore, the bottom of the trestle channel column is welded with a column base steel plate, which is fixed to the main beam of the trestle by secondary beam column connecting bolts.
[0012] Furthermore, the trestle passage also includes main beam connecting steel plates, and the adjacent trestle main beams are connected along the trestle passage direction by main beam connecting steel plates and fixed by secondary beam butt joint connecting bolts.
[0013] Furthermore, four railings are horizontally welded between the pillars of the trestle bridge passage.
[0014] Furthermore, the trestle passage also includes a steel grating. Saddle clamp connecting bolts are welded onto the secondary beams of the trestle. After the steel grating is fixed to the secondary beams of the trestle by the saddle clamps, it is fixed by the saddle clamp connecting nuts. The steel grating is set away from the bridge frame.
[0015] Furthermore, the support steel beam is fixed to the support column by the diagonal bracing main beam connecting bolts, and the trestle secondary beam is installed on the trestle rib plate by the secondary beam rib connecting bolts.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. The main structure of the trestle bridge is connected to the top of the pipe piles through supports. The main beam connection section of the trestle bridge is located at about one-third of the span away from the supports. The technology that allows for flexible adjustment of the upper and lower clamp positions can effectively solve the problem that when there is a certain deviation in the construction of the pipe piles, the upper structure can still be installed smoothly without the need to correct the pipe piles.
[0018] 2. All nodes are connected using bolts or other methods, and each component is small, making it easy to transport and install.
[0019] 3. The various components of the support structure form a triangular whole, which is structurally stable. Multiple ribs are installed on the main beam of the trestle bridge, making it less prone to instability and failure.
[0020] 4. The trestle structure allows for cable laying on one side and railing on the other, thus fulfilling both the functions of a cable tray and maintenance. Additionally, the cable tray columns also function as railing columns on one side, resulting in an aesthetically pleasing and economical overall design. Attached Figure Description
[0021] Appendix Figure 1 This is a cross-sectional view of the trestle structure for photovoltaic applications on tidal flats according to this utility model;
[0022] Appendix Figure 2 This is a plan view of the trestle structure for photovoltaic applications on tidal flats according to this utility model;
[0023] Appendix Figure 3 This is a plan view of the trestle structure for photovoltaic applications on tidal flats according to this utility model;
[0024] Appendix Figure 4 This is an elevation view of the trestle structure for photovoltaic applications on tidal flats according to this utility model;
[0025] Appendix Figure 5 This is a plan view of the lower clamp connection of the trestle structure for photovoltaic power generation on tidal flats according to this utility model;
[0026] Appendix Figure 6 This is a plan view of the clamp connection on the trestle structure for photovoltaic power generation on tidal flats according to this utility model;
[0027] Appendix Figure 7 This is a plan view of the main beam connection of the trestle structure column for photovoltaic power generation on tidal flats according to this utility model;
[0028] Appendix Figure 8 This utility model provides a connection node for the main beam, secondary beam, and rib of a trestle structure used for photovoltaic power generation on tidal flats.
[0029] Appendix Figure 9 This is an elevation view of the railing connection node of the trestle structure for photovoltaic use in tidal flats according to this utility model;
[0030] Appendix Figure 10This is a plan view of the railing connection node of the trestle structure for photovoltaic power generation on tidal flats according to this utility model;
[0031] Appendix Figure 11 This is a cross-sectional view of the main beam connection of the trestle structure for photovoltaic power generation on tidal flats according to this utility model;
[0032] Appendix Figure 12 This is a plan view of the main beam connection of the trestle structure for photovoltaic power generation on tidal flats according to this utility model;
[0033] Appendix Figure 13 This is a detailed drawing of the steel grating installation node of the trestle structure for photovoltaic power generation on tidal flats, as described in this utility model.
[0034] In the diagram: 1-Pipe pile, 2-Support, 21-Lower clamp, 211-Clamp plate one, 212-Clamp plate two, 22-Upper clamp, 221-Short clamp plate, 23-Support column, 24-Diagonal brace, 25-Support steel beam, 3-Trestling passage, 31-Trestling main beam, 32-Trestling rib plate, 33-Trestling secondary beam, 34-Steel grating, 35-Column bottom steel plate, 36-Trestling passage column, 37-Bridge support, 38-Main beam connector Steel plate, 39-railing, 4-connecting bolt, 41-column clamp connecting bolt, 42-clamp diagonal brace connecting bolt, 43-diagonal brace main beam connecting bolt, 44-column main beam connecting bolt, 45-main beam secondary beam connecting bolt, 46-secondary beam column connecting bolt, 47-secondary beam rib connecting bolt, 48-secondary beam butt joint connecting bolt, 49-saddle clamp, 50-saddle clamp connecting bolt, 51-saddle clamp connecting nut, 5-cable tray. Detailed Implementation
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.
[0036] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0037] like Figure 1-13 As shown, a trestle structure for photovoltaic power generation on tidal flats includes pipe piles 1, a support 2 mounted on the pipe piles 1, a trestle passage 3 mounted on the support 2, and a bridge frame 5 mounted on the trestle passage 3. The support 2 includes clamps, support columns 23, and support steel beams 25. The support columns 23 are fixed to the pipe piles 1 by clamps, and the support steel beams 25 are fixed to the support columns 23 by main beam connecting bolts 44. The trestle passage 3 includes a main beam 31, ribs 32, and secondary beams 3. 3. The trestle passageway column 36 and the bridge frame support 37 are as follows: the main beam 31 of the trestle is fixed on the support steel beam 25 and arranged in two rows; the trestle rib plate 32 is set on the main beam 31; the secondary beam 33 of the trestle is installed on the rib plate 32 through the secondary beam rib connecting bolt 47; the trestle passageway column 36 is vertically fixed on the main beam 31; the bridge frame support 37 is horizontally fixed in the middle of the inner side of the trestle passageway column 36; and the bridge frame 5 is fixed on the secondary beam 33 and the bridge frame support 37 respectively.
[0038] Pipe pile 1 can be a precast concrete pipe pile, or a steel pipe pile or other precast pile foundation.
[0039] The support 2 is installed on the pipe pile 1 by two clamps, the lower clamp 21 and the upper clamp 22. It can correct the deviation when there is a deviation in the top elevation of the pipe pile 1 during driving. At the same time, when the pipe pile 1 settles to a certain extent, the positions of the lower clamp 21 and the upper clamp 22 can be interchanged, thereby raising the upper trestle passage 3 without the need to treat the pipe pile 1, which is convenient for construction.
[0040] The parallel main beams 31 of the trestle are installed on the support steel beams 25 to form the trestle passage 3.
[0041] The cable tray 5 is installed on the secondary beam 33 of the trestle bridge and the cable tray support 37 of the trestle bridge passage using non-welding methods such as clamps or bolts.
[0042] The support steel beam 25 can be a C-shaped steel section, a rectangular steel section, or other types of steel sections.
[0043] As an optional embodiment, the clamp includes a lower clamp 21 and an upper clamp 22. The lower clamp 21 is composed of a clamp plate 211 and a clamp plate 212, with the clamp plate 211 being longer than the clamp plate 212. The upper clamp is composed of two short clamp plates 221. The support column 23 is fixed to the lower clamp 21 and the upper clamp 22 by column clamp connecting bolts 41.
[0044] Specifically, the upper clamp 22, the support column 23 is installed on the short clamp plate 221 via the column clamp connecting bolt 41. The lower clamp 21, the support column 23 is installed on the clamp plate 212 via the column clamp connecting bolt 41.
[0045] As an optional embodiment, the support 2 further includes a diagonal brace 24. One end of the diagonal brace 24 is fixed to the clamp plate 211 by a clamping diagonal brace connecting bolt 42, and the other end is fixed to the support steel beam 25 by a diagonal brace main beam connecting bolt 43. The support column 23, the diagonal brace 24, and the support steel beam 25 form a triangular structure, which is structurally stable.
[0046] As an optional embodiment, the bottom of the trestle channel column 36 is welded with a column bottom steel plate 35, and the column bottom steel plate 35 is fixed to the trestle main beam 31 by secondary beam column connecting bolts 46.
[0047] As an optional embodiment, the trestle passage 3 also includes a main beam connecting steel plate 38, and the adjacent trestle main beams 31 are connected by the main beam connecting steel plate 38 along the direction of the trestle passage 2, and are fixed by secondary beam butt connecting bolts 48.
[0048] As an optional embodiment, four railings 39 are horizontally welded between the trestle channel columns 36. The trestle structure allows cable laying on one side and railings 39 on the other, functionally fulfilling both the function of a cable tray and its maintenance requirements. Simultaneously, the cable tray columns also function as railing columns on one side, resulting in an aesthetically pleasing and economical design.
[0049] As an optional embodiment, the trestle passage 3 also includes a steel grating 34. The saddle clamp connecting bolts 50 are welded and installed on the secondary beam 33 of the trestle before leaving the factory. After the steel grating 34 is fixed to the secondary beam 33 of the trestle by saddle clamps 49, it is fixed by saddle clamp connecting nuts 51. The steel grating 34 is located away from the bridge frame 5 to realize the operation and maintenance function.
[0050] All welding work on all components is completed on land before leaving the factory, eliminating the need for welding after leaving the factory and avoiding welding operations at sea, thus ensuring welding quality; all nodes are connected by bolts or other means, and each component is small, making it easy to transport and install.
[0051] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.
[0052] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.
[0053] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0054] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.
Claims
1. A trestle structure for photovoltaic power generation on tidal flats, characterized in that, The system includes a pipe pile (1), a support (2) installed on the upper part of the pipe pile (1), a trestle passage (3) installed on the upper part of the support (2), and a bridge frame (5) installed on the trestle passage (3). The support (2) includes a clamp, a support column (23), and a support steel beam (25). The support column (23) is fixed to the pipe pile (1) by the clamp, and the support steel beam (25) is fixed to the support column (23) by the column main beam connecting bolt (44). The trestle passage (3) includes a trestle main beam (31), a trestle rib plate (32), a trestle secondary beam (33), and a trestle bridge. The trestle column (36) and the bridge support (37) are arranged in two rows, with the main beam (31) of the trestle fixed on the support steel beam (25). The trestle rib plate (32) is set on the main beam (31) of the trestle. The secondary beam (33) of the trestle is installed on the rib plate (32) of the trestle through the secondary beam rib connecting bolt (47). The trestle channel column (36) is vertically fixed on the main beam (31) of the trestle. The bridge support (37) is horizontally fixed in the middle of the inner side of the trestle channel column (36). The bridge frame (5) is fixed on the secondary beam (33) of the trestle and the bridge support (37) respectively.
2. The trestle structure for tidal flat photovoltaic applications as described in claim 1, characterized in that, The clamp includes a lower clamp (21) and an upper clamp (22). The lower clamp (21) is composed of clamp plate one (211) and clamp plate two (212). The clamp plate one (211) is longer than the clamp plate two (212). The upper clamp is composed of two short clamp plates (221). The support column (23) is fixed to the lower clamp (21) and the upper clamp (22) by column clamp connecting bolts (41).
3. The trestle structure for tidal flat photovoltaic applications as described in claim 2, characterized in that, The bracket (2) also includes a diagonal brace (24), one end of which is fixed to the clamp plate (211) by a clamping diagonal brace connecting bolt (42), and the other end is fixed to the bracket steel beam (25).
4. The trestle structure for tidal flat photovoltaic applications as described in claim 1, characterized in that, The bottom of the trestle channel column (36) is welded with a column bottom steel plate (35), and the column bottom steel plate (35) is fixed to the trestle main beam (31) by secondary beam column connecting bolts (46).
5. The trestle structure for tidal flat photovoltaics as described in claim 1, characterized in that, The trestle passage (3) also includes a main beam connecting steel plate (38). Adjacent trestle main beams (31) are connected by the main beam connecting steel plate (38) along the trestle passage (3) and fixed by secondary beam butt connecting bolts (48).
6. The trestle structure for tidal flat photovoltaic applications as described in claim 1, characterized in that, Four railings (39) are horizontally welded between the pillars (36) of the trestle passage.
7. The trestle structure for tidal flat photovoltaic applications as described in claim 1, characterized in that, The trestle passage (3) also includes a steel grating (34). The secondary beam (33) of the trestle is welded with saddle clamp connecting bolts (50). After the steel grating (34) is fixed to the secondary beam (33) of the trestle by saddle clamps (49), it is fixed by saddle clamp connecting nuts (51). The steel grating (34) is set away from the bridge frame (5).
8. The trestle structure for tidal flat photovoltaic applications as described in claim 1, characterized in that, The support steel beam (25) is fixed to the support column (23) by the diagonal bracing main beam connecting bolt (43), and the trestle secondary beam (33) is installed on the trestle rib plate (32) by the secondary beam rib connecting bolt (47).