Fabricated offshore photovoltaic supporting structure

Abstract

The utility model relates to an assembly type offshore photovoltaic supporting structure which comprises at least four prefabricated pile foundations, two prefabricated cross beams and a plurality of sets of prefabricated trusses. The two ends of the lower end face of each prefabricated cross beam are each connected with one prefabricated pile foundation, the multiple sets of prefabricated trusses are connected between the two prefabricated cross beams, and photovoltaic devices are connected to the prefabricated trusses. The two ends of the lower end face of each prefabricated cross beam are each provided with a first reserved groove used for being connected with the corresponding prefabricated pile foundation. The opposite faces of the two prefabricated beams are each provided with a plurality of second reserved grooves used for being connected with the two ends of the multiple sets of prefabricated trusses. The prefabricated truss comprises two transverse rods, a plurality of vertical rods and a plurality of inclined rods; the plurality of vertical rods are connected between the two cross rods, and one inclined rod is connected between every two adjacent vertical rods. According to the utility model, the overwater construction operation is greatly reduced, the complex process design is avoided, and the construction efficiency of the offshore photovoltaic support structure is improved.

Description

Technical Field

[0001] The utility model relates to an assembled offshore photovoltaic support structure. Background Art

[0002] Affected by the hydrological, geological, climatic and other conditions of the marine environment, the construction window period for offshore photovoltaic support structures is short. During the construction process, there are a large number of pile foundations at the bottom of the support structure, the structure construction takes a long time, the construction period is tight, the task is heavy, and the distance between the pile foundations is short. It is difficult for ships to anchor between the pile groups, and there is a lot of cross-interference.

[0003] At the same time, the installation of the photovoltaic upper support has problems such as difficulty in vertical transportation of components, high installation accuracy requirements for the connection nodes between the support and the pile foundation, large photovoltaic module installation tasks, and tight construction period. Therefore, an assembled offshore photovoltaic support structure is proposed to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the existing defects and provide an assembled offshore photovoltaic support structure, which greatly reduces the construction work on the water, avoids complicated process design, and improves the construction efficiency of the offshore photovoltaic support structure.

[0005] The technical solution to achieve the above object is: an assembled offshore photovoltaic support structure, including at least four prefabricated pile foundations, two prefabricated beams and multiple sets of prefabricated trusses;

[0006] The two ends of the lower end surface of each prefabricated crossbeam are respectively connected to a prefabricated pile foundation, a plurality of groups of prefabricated trusses are connected between two prefabricated crossbeams, and the prefabricated trusses are connected to photovoltaic devices.

[0007] Preferably, each of the prefabricated cross beams has a first reserved groove at both ends of the lower end surface for connecting to the prefabricated pile foundation.

[0008] Preferably, the opposite surfaces of the two prefabricated cross beams each have a plurality of second reserved grooves for connecting the two ends of the plurality of groups of prefabricated trusses.

[0009] Preferably, the prefabricated truss comprises two horizontal bars, a plurality of vertical bars and a plurality of diagonal bars; a plurality of vertical bars are connected between two horizontal bars, and one diagonal bar is connected between every two adjacent vertical bars.

[0010] Preferably, the gap between the prefabricated pile foundation and the first reserved groove is filled by grouting.

[0011] Preferably, the gap between the prefabricated truss and the second reserved groove is filled by grouting.

[0012] Preferably, the second reserved groove is arranged to be inclined, and the prefabricated trusses are in an inclined state after being connected.

[0013] Preferably, both ends of the lower end surface of each prefabricated cross beam are provided with embedded pipes, and the upper end of the prefabricated pile foundation is inserted into the embedded pipes and fixedly connected by grouting.

[0014] An embedded part is arranged in the second reserved groove, and the lock buckle at the end of the prefabricated truss is mechanically connected to the embedded part.

[0015] A rubber strip is filled in the gap between the prefabricated truss and the second reserved groove, and a cover plate is arranged on the top of the second reserved groove to limit the prefabricated truss.

[0016] The beneficial effects of the utility model are as follows: the prefabricated offshore photovoltaic support structure is assembled into an offshore photovoltaic support structure by setting prefabricated pile foundations, prefabricated beams and prefabricated trusses. Except for the pile foundation piling and beam hoisting, which require water construction, the grouting connection between the pile foundation and the beam, the installation of the truss, and the grouting connection between the truss and the beam do not require water construction. Compared with the construction of conventional photovoltaic brackets, the water construction is greatly reduced, the construction period is greatly shortened, and it is suitable for projects with short construction windows and poor hydrological and wind and wave conditions. In addition, the prefabricated trusses are installed and constructed in sequence by moving the gantry crane forward, which improves the installation efficiency of the photovoltaic bracket, and the main equipment used is a small gantry crane and grouting equipment, and the equipment and process are simple and easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a perspective view of an assembled offshore photovoltaic support structure according to Embodiment 1 of the present utility model;

[0018] Figure 2 This is a front view of an assembled offshore photovoltaic support structure according to Embodiment 1 of the present utility model;

[0019] Figure 3 This is a side view of an assembled offshore photovoltaic support structure according to Embodiment 1 of the present utility model;

[0020] Figure 4 This is a perspective view of the assembled offshore photovoltaic support structure of the second embodiment of the utility model;

[0021] Figure 5 This is a front view of the second assembled offshore photovoltaic support structure of the utility model

[0022] Figure 6 This is a side view of the assembled offshore photovoltaic support structure of the second embodiment of the utility model

[0023] Figure 7 This is a partial detail diagram of the assembled offshore photovoltaic support structure of Example 2 of the utility model.

[0024] In the figure: 1. Prefabricated pile foundation; 2. Prefabricated cross beam; 3. Prefabricated truss; 31. Cross bar; 32. Vertical bar; 33. Diagonal bar; 4. First reserved groove; 5. Second reserved groove; 6. Embedded pipe. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] The utility model will be further described below in conjunction with the accompanying drawings.

[0027] Embodiment 1

[0028] like Figure 1-3 As shown, an assembled offshore photovoltaic support structure includes at least four prefabricated pile foundations 1, two prefabricated beams 2 and multiple groups of prefabricated trusses 3; each prefabricated beam 2 is connected to a prefabricated pile foundation 1 at both ends of the lower end surface, multiple groups of prefabricated trusses 3 are connected between the two prefabricated beams 2, and the prefabricated trusses 3 are connected to photovoltaic devices, which include photovoltaic panels, etc.

[0029] Specifically, each prefabricated cross beam 2 has a first reserved groove 4 at both ends of the lower end surface, which is used to connect the prefabricated pile foundation 1. The gap between the prefabricated pile foundation 1 and the first reserved groove 4 is filled by grouting. The prefabricated pile foundation 1 can be a PHC (prestressed high-strength concrete pipe pile) pile, a plant fiber cement (mixed reinforced prestressed concrete pipe pile) pile or a steel pipe pile, etc., with a diameter of 0.5ˉ1.0m.

[0030] Specifically, the opposite surfaces of the two prefabricated cross beams 2 each have a plurality of second reserved grooves 5 for connecting the two ends of the plurality of prefabricated trusses 3. The gaps between the prefabricated trusses 3 and the second reserved grooves 5 are filled by grouting.

[0031] Specifically, the prefabricated cross beam 2 is a prefabricated concrete component, which is erected on the prefabricated pile foundation 1. The difference between it and the conventional rectangular parallelepiped cross beam is that: the second reserved grooves 5 arranged at equal intervals are arranged on both sides, and the second reserved grooves 5 are used to insert the prefabricated trusses 3; the first reserved groove 4 is arranged at the bottom for insertion and connection with the prefabricated pile foundation 1. The depth of the first reserved groove 4 is greater than 300mm, less than 1 / 2 of the width of the cross beam, and the slope is the design inclination angle of the photovoltaic module.

[0032] Specifically, the prefabricated truss 3 includes two horizontal bars 31, multiple vertical bars 32 and multiple diagonal bars 33. Multiple vertical bars 32 are connected between the two horizontal bars 31, and one diagonal bar 33 is connected between each two adjacent vertical bars 32. The second reserved slot 5 is inclined, and the prefabricated truss 3 is in an inclined state after connection.

[0033] Specifically, the horizontal rod 31, the vertical rod 32 and the diagonal rod 33 can be made of square steel pipes, round steel pipes, I-beams and other components. The purlins and photovoltaic panels should be pre-laid on the prefabricated trusses 3 at the same time, and the left and right ends of each truss are inserted into the second reserved grooves 5 of the two aligned beams.

[0034] During installation, the prefabricated pile foundation 1 is driven into the water and the top elevation of each pile is made the same. Then the prefabricated cross beam 2 is hoisted above the prefabricated pile foundation 1. After alignment, the first reserved groove 4 of the prefabricated cross beam 2 is inserted into the top of the prefabricated pile foundation 1. The gap between the prefabricated pile foundation 1 and the first reserved groove 4 is filled by grouting. After reaching the predetermined strength, the connection between the pile foundation and the cross beam is completed. A guide rail is laid along the length direction in the middle of two adjacent prefabricated cross beams 2. A small gantry crane is mounted on the guide rail. The prefabricated truss 3 is hoisted by the gantry crane and moved to the second reserved groove 5 of the first row. The prefabricated truss 3 is aligned with the second reserved groove 5 and then lowered so that the prefabricated truss 3 slides into the second reserved groove 5 by gravity. After completing the installation of a row of truss components, the crane is pushed forward and the above process is repeated to complete the installation of each row of prefabricated trusses 3 in sequence. The gap between the prefabricated truss 3 and the second reserved groove 5 of the prefabricated cross beam 2 is filled by grouting, and the connection between the truss and the cross beam is completed after reaching a predetermined strength. After the installation is completed, the guide rail, the door machine and the grouting construction equipment are removed to complete the construction of the photovoltaic support structure.

[0035] This assembled offshore photovoltaic support structure is assembled into an offshore photovoltaic support structure by setting up prefabricated pile foundations 1, prefabricated beams 2 and multiple groups of prefabricated trusses 3. Except for the pile foundation piling and beam hoisting, which require water construction, the grouting connection between the pile foundation and the beam, the installation of the truss, and the grouting connection between the truss and the beam do not require water construction. Compared with the construction of conventional photovoltaic brackets, it greatly reduces the water construction and greatly shortens the construction period. It is suitable for projects with short construction windows and poor hydrological and wind and wave conditions. In addition, the prefabricated trusses are installed and constructed in sequence by moving the gantry crane forward, which improves the installation efficiency of the photovoltaic bracket. The main equipment used is a small gantry crane and grouting equipment, and the equipment and process are simple and easy.

[0036] Embodiment 2

[0037] like Figure 4-7As shown, each prefabricated cross beam 2 has an embedded pipe 6 at both ends of the lower end surface, and the upper end of the prefabricated pile foundation 1 is inserted into the embedded pipe 6 and fixedly connected by grouting. Compared with the first embodiment, the structural change is the first reserved groove 4 of the cross beam component. Here, the first reserved groove 4 is cancelled, and the embedded pipe 6 is embedded in the bottom surface of the prefabricated cross beam, so that a part of the embedded pipe 6 is exposed on the bottom surface of the prefabricated cross beam 2, thereby forming a cylindrical space. The prefabricated pile foundation 1 is inserted into the cylindrical space and supported on the bottom surface of the cross beam. The material of the embedded pipe is generally a steel pipe.

[0038] In the first embodiment, grouting is performed in the first reserved groove 4. A hole needs to be drilled on the top surface of the prefabricated pile foundation 1 so that the grouting material can be poured into the gap, and the overflow of the grouting hole can be used to judge whether the grouting is sufficient. In the second embodiment, a grouting port can be set at the bottom of the exposed part of the embedded pipe 6 so that the grouting material is poured into the annular gap, and an overflow port is set at the top to observe whether the grouting is sufficient. Both the grouting port and the overflow port can be processed when the beam is prefabricated. Only grouting is required on site, and no drilling operation is required.

[0039] Embodiment 3

[0040] An embedded part is arranged in the second reserved groove 5, and the lock buckle at the end of the prefabricated truss 3 is mechanically connected to the embedded part.

[0041] Embodiment 4

[0042] The gap between the prefabricated truss 3 and the second reserved groove 5 is filled with a rubber strip, and a cover plate is set on the top of the second reserved groove 5 to restrict the prefabricated truss 3. After the prefabricated truss 3 is installed in place, the gap is filled with a rubber strip, and a cover plate is set on the top of the second reserved groove 5 to fix it, thereby preventing the prefabricated truss 3 from moving.

[0043] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An assembled offshore photovoltaic support structure, characterized in that: It comprises at least four prefabricated pile foundations (1), two prefabricated beams (2) and a plurality of prefabricated trusses (3); The two ends of the lower end surface of each prefabricated crossbeam (2) are respectively connected to a prefabricated pile foundation (1), a plurality of groups of prefabricated trusses (3) are connected between two prefabricated crossbeams (2), and a photovoltaic device is connected to the prefabricated trusses (3).

2. The assembled offshore photovoltaic support structure according to claim 1, characterized in that: Each of the prefabricated cross beams (2) has a first reserved groove (4) at both ends of the lower end surface thereof, for connecting to the prefabricated pile foundation (1).

3. The assembled offshore photovoltaic support structure according to claim 1, characterized in that: The opposite surfaces of the two prefabricated cross beams (2) are each provided with a plurality of second reserved grooves (5) for connecting the two ends of the plurality of groups of prefabricated trusses (3).

4. The assembled offshore photovoltaic support structure according to claim 1, characterized in that: The prefabricated truss (3) comprises two cross bars (31), a plurality of vertical bars (32) and a plurality of diagonal bars (33); a plurality of vertical bars (32) are connected between two cross bars (31), and one diagonal bar (33) is connected between every two adjacent vertical bars (32).

5. The assembled offshore photovoltaic support structure according to claim 2, characterized in that: The gap between the prefabricated pile foundation (1) and the first reserved groove (4) is filled by grouting.

6. The assembled offshore photovoltaic support structure according to claim 3, characterized in that: The gap between the prefabricated truss (3) and the second reserved groove (5) is filled by grouting.

7. The assembled offshore photovoltaic support structure according to claim 3, characterized in that: The second reserved groove (5) is arranged to be inclined, and the prefabricated trusses (3) are in an inclined state after being connected.

8. The assembled offshore photovoltaic support structure according to claim 1, characterized in that: Each of the two ends of the lower end surface of the prefabricated cross beam (2) is provided with a pre-buried pipe (6), and the upper end of the prefabricated pile foundation (1) is inserted into the pre-buried pipe (6) and fixedly connected by grouting.

9. The assembled offshore photovoltaic support structure according to claim 3, characterized in that: An embedded part is arranged in the second reserved groove (5), and the lock buckle at the end of the prefabricated truss (3) is mechanically connected to the embedded part.

10. The assembled offshore photovoltaic support structure according to claim 3, characterized in that: The gap between the prefabricated truss (3) and the second reserved groove (5) is filled with a rubber strip, and a cover plate is provided on the top of the second reserved groove (5) to limit the prefabricated truss (3).

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