Triangular pyramid truss offshore photovoltaic supporting system
By adopting triangular cone truss structural system and transverse plane truss in offshore photovoltaic support systems, the problems of difficult construction, high cost and structural instability of traditional systems in marine environments are solved, and the photovoltaic support effects with high rigidity, low weight and low cost are achieved.
Patent Information
- Application Number
- CN202421583395.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-05
AI Technical Summary
Traditional offshore photovoltaic support systems have problems such as high construction difficulty, high cost, lateral unstable structure, and easy damage to photovoltaic modules in complex marine environments.
A triangular cone truss structural system is adopted, through the connection between pile foundations and triangular cone trusses arranged in multiple rows and rows, combining transverse plane trusses and dual column components to form a high rigidity and low weight photovoltaic support system.
It achieves high load-bearing capacity, good lateral stability, low cost and simplified construction, avoiding hidden cracks and damage of photovoltaic modules, and reducing the overall cost.
Smart Images
Figure CN222802771U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of offshore photovoltaic support, in particular to a triangular cone truss offshore photovoltaic support system. Background Art
[0002] Offshore photovoltaics have the characteristics of light upper weight, large wind load, and wide plane range. The structural types that can be used for offshore photovoltaics include: pile + fixed steel structure photovoltaic bracket, pile + flexible photovoltaic bracket, and floating photovoltaic bracket. Due to the large offshore wind load and wave flow load, and the difficulty of construction, the most widely used type is pile + fixed steel structure. However, there are still the following main problems with the current offshore pile + fixed steel structure photovoltaic bracket:
[0003] (1) In the traditional photovoltaic structure of pile + one-way plane tube truss photovoltaic rack, the upper steel structure adopts one-way plane tube truss, and the distance between the lateral restraint points of the upper chord and the lower chord is large, which makes the lateral displacement of the upper chord and the lower chord large and shakes violently. This leads to hidden cracks in the photovoltaic module, even damage to the photovoltaic module, and flipping of the entire photovoltaic module.
[0004] (2) Traditional pile + bidirectional plane tube truss photovoltaic frame photovoltaic structure, the upper steel structure adopts a bidirectional plane tube truss structure, and the horizontal truss spacing is less than 5 meters to ensure the lateral stability of the upper and lower chords, resulting in a large amount of steel used in the upper structure and high construction costs.
[0005] (3) Traditional pile + H-shaped steel beam photovoltaic frame photovoltaic structure, the upper steel structure adopts H-shaped steel beam, which has poor lateral stability, large amount of steel consumption and high construction cost.
[0006] In summary, due to the particularity of the marine environment, the traditional photovoltaic support system cannot adapt well to the complex marine environment and has problems such as difficulty in offshore construction and high cost. Utility Model Content
[0007] The purpose of the utility model is to provide a triangular cone truss offshore photovoltaic support system to solve the problems raised in the above-mentioned background technology. The utility model has the advantages of high bearing capacity, good rigidity, good stability, light weight, low construction difficulty and low cost.
[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0009] A triangular pyramid truss offshore photovoltaic support system comprises pile foundations arranged in multiple rows and columns, wherein a triangular pyramid truss is provided on each column of pile foundations, and adjacent triangular pyramid trusses are connected in the row direction by multiple groups of transverse plane trusses; a double column assembly is connected to the top of the triangular pyramid truss, and the top of the double column assembly is connected to a photovoltaic panel purlin, on which photovoltaic panels are installed.
[0010] In the aforementioned triangular cone truss offshore photovoltaic support system, the triangular cone truss includes a triangular cone truss lower chord arranged on the top of the pile foundation, two triangular cone truss upper chords are arranged above the triangular cone truss lower chord, a plurality of tripods are arranged between the triangular cone truss lower chord and the two triangular cone truss upper chords, three triangular cone truss lower web bars are arranged between adjacent tripods, and the connection points between the tripod and the triangular cone truss lower chord and the triangular cone truss upper chord are the rod end connection points of the triangular cone truss lower web bars.
[0011] In the aforementioned triangular cone truss offshore photovoltaic support system, the lower web of the triangular cone truss is hinged to the pile foundation.
[0012] In the aforementioned triangular cone truss offshore photovoltaic support system, the transverse plane truss includes a transverse connecting system upper chord whose two ends are connected to the lower webs of adjacent triangular cone trusses and a transverse connecting system lower chord whose two ends are connected to the upper chords of adjacent triangular cone trusses, and the transverse connecting system upper chord and the transverse connecting system lower chord are staggeredly connected by a plurality of transverse connecting system webs.
[0013] In the aforementioned triangular cone truss offshore photovoltaic support system, the double column assembly includes a front column and a rear column arranged in front and back, the front column and the rear column are vertically on a triangular cone truss upper chord, and the top ends of the front column and the rear column are respectively connected to another triangular cone truss upper chord via an inclined beam.
[0014] In the aforementioned triangular cone truss offshore photovoltaic support system, the photovoltaic panel purlin in the middle of the photovoltaic panel is connected to one end of the front diagonal brace, and the other end of the front diagonal brace is connected to the bottom end of the rear column.
[0015] In the aforementioned triangular cone truss offshore photovoltaic support system, the span of the triangular cone truss is 15-60m, and the height is 1 / 12-1 / 16 of the span.
[0016] In the aforementioned triangular cone truss offshore photovoltaic support system, the spacing between adjacent triangular cone trusses is 5-9m.
[0017] In the aforementioned triangular pyramid truss offshore photovoltaic support system, the lower part of the pile foundation is set in the seabed mud surface, and the top is set above the wave line.
[0018] Compared with the prior art, the beneficial effects of the utility model are:
[0019] 1. The utility model has the advantages of high bearing capacity, good rigidity, good stability, light weight, low construction difficulty and low cost.
[0020] 2. The offshore wind load is large, and it is difficult to ensure the stability of the structure by using a flexible cable structure or a plane tube truss structure, which can easily lead to lateral instability and collapse of the structure. The triangular cone truss structure system provided by the utility model has strong vertical stiffness and large vertical bearing capacity, which can solve this problem. In addition, the amount of steel used in the triangular cone truss is about 30% lower than that of the plane tube truss structure, so the cost is lower and it has great application value.
[0021] 3. The cost of offshore piling is relatively high. The utility model can adapt to large spans and can significantly reduce the total cost by reducing the number of pile foundations.
[0022] 4. The triangular pyramid truss structure proposed by the utility model has strong lateral rigidity and small lateral displacement, which can avoid the occurrence of hidden cracks in the photovoltaic module, even damage to the photovoltaic module, and flipping of the entire photovoltaic module and other adverse consequences.
[0023] 5. The multi-frame triangular pyramid truss structure proposed by the utility model can be made into an integral structure with the transverse plane truss for hoisting, thereby reducing the hoisting cost of the construction.
[0024] 6. In the present invention, the photovoltaic panels are arranged at intervals to meet the lighting needs of marine fish. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the triangular cone truss offshore photovoltaic support system;
[0026] Figure 2 It is a schematic diagram of the plane structure of the triangular cone truss offshore photovoltaic support system;
[0027] Figure 3 This is a schematic diagram of the front elevation structure of the triangular pyramid truss offshore photovoltaic support system;
[0028] Figure 4 It is a schematic diagram of the side elevation structure of the triangular pyramid truss offshore photovoltaic support system;
[0029] Figure 5 It is a structural schematic diagram of a triangular pyramid truss;
[0030] Figure 6 It is a schematic diagram of the cross-sectional structure of a triangular pyramid truss;
[0031] In the figure: 1-pile foundation, 2-upper chord of triangular cone truss, 3-lower chord of triangular cone truss, 4-lower web of triangular cone truss, 5-transverse plane truss, 5-1, upper chord of transverse connection system, 5-2, lower chord of transverse connection system, 5-3, web of transverse connection system, 6-photovoltaic panel, 7-purlin of photovoltaic panel, 8-inclined beam, 9-front column, 10-rear column, 11-front diagonal brace, 12-hinge point of lower chord of triangular cone truss and pile foundation, 13-wave line, 14-seabed mud surface; a is the height of triangular cone truss, and b is the width of triangular cone truss. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] Example 1, a triangular pyramid truss offshore photovoltaic support system, the structure of which can be found in Figure 1-6 As shown, it includes pile foundations 1 arranged in multiple rows and columns, each column of pile foundations 1 is respectively provided with triangular pyramid trusses, and adjacent triangular pyramid trusses are connected in the row direction by multiple groups of transverse plane trusses 5; the top of the triangular pyramid trusses is connected with a double column assembly, the top of the double column assembly is connected with a photovoltaic panel purlin 7, and the photovoltaic panel purlin 7 is installed with a photovoltaic panel 6. The lower part of the pile foundation 1 is set in the seabed mud surface 14, and the top is set beyond the wave line 13.
[0034] The triangular pyramid truss includes a triangular pyramid truss lower chord 3 arranged on the top of the pile foundation 1, two triangular pyramid truss upper chords 2 are arranged above the triangular pyramid truss lower chord 3, a plurality of tripods are arranged between the triangular pyramid truss lower chord 3 and the two triangular pyramid truss upper chords 2, three triangular pyramid truss lower web members 4 are arranged between adjacent tripods, and the connection points between the tripods and the triangular pyramid truss lower chord 3 and the triangular pyramid truss upper chord 2 are the rod end connection points of the triangular pyramid truss lower web members 4.
[0035] The lower web member 4 of the triangular pyramid truss is hinged to the pile foundation 1. Since the pile foundation 1 bears large wave loads and flow loads, and the length of the pile foundation 1 exposed to the mud surface is long, the bending moment of the pile foundation 1 is large. In order to reduce the force on the pile foundation 1, it is preferred to hinge the lower web member 4 of the triangular pyramid truss to the pile top, so that the upper structure only transmits shear force and vertical force to the pile foundation 1 to reduce the bending moment of the pile foundation.
[0036] The transverse plane truss 5 includes a transverse connection system upper chord 5-1 whose two ends are connected to the lower web members 4 of the adjacent triangular pyramid trusses and a transverse connection system lower chord 5-2 whose two ends are connected to the upper chord 2 of the adjacent triangular pyramid trusses. The transverse connection system upper chord 5-1 and the transverse connection system lower chord 5-2 are staggeredly connected by a plurality of transverse connection system web members 5-3. The staggered connection is as shown in the figure. The plurality of transverse connection system web members 5-3 are connected back and forth between the transverse connection system upper chord 5-1 and the transverse connection system lower chord 5-2 to form a large number of stable triangular structures. In order to ensure the lateral integrity, the transverse plane trusses 5 between the triangular pyramid truss brackets are aligned and arranged so that the lateral deformation of the structure is coordinated and the lateral displacement of the pile top at the local position is reduced to reduce the damage to the photovoltaic panel caused by the excessive lateral displacement of the pile top at the local position. The overall transverse plane truss 5 is preferably arranged beside the outermost photovoltaic panels 6 at the front and rear, and is arranged in the middle position, with 4 groups of photovoltaic panels 6 spaced apart.
[0037] The double column assembly includes a front column 9 and a rear column 10 arranged in a front-to-back manner, the front column 9 and the rear column 10 are vertically mounted on a triangular pyramid truss upper chord 2, and the top ends of the front column 9 and the rear column 10 are respectively connected to another triangular pyramid truss upper chord 2 via an inclined beam 8; the photovoltaic panel purlin 7 in the middle of the photovoltaic panel 6 is connected to one end of the front diagonal brace 11, and the other end of the front diagonal brace 11 is connected to the bottom end of the rear column 10. By setting in this way, a stable triangular structure is formed in both directions of the column, and a stable whole is also formed between the upper photovoltaic panel support structure and the triangular pyramid truss structure.
[0038] In the above system, in order to ensure bearing capacity and stability, the span of the triangular pyramid truss is preferably implemented at a distance of 15-60m and a height of 1 / 12-1 / 16 of the span, specifically 40m and 1 / 14.
[0039] In order to facilitate the arrangement of component keels, the spacing between adjacent triangular pyramid trusses is preferably 5-9m, specifically 7.5m.
[0040] Example 2, a triangular cone truss offshore photovoltaic support system. This example is implemented with the structure of Example 1. Different from Example 1, the span of the triangular cone truss of this example is 15m and the height is 1 / 12 of the span; the spacing between adjacent triangular cone trusses is 5m.
[0041] Example 3, a triangular cone truss offshore photovoltaic support system. This example is implemented with the structure of Example 1. Different from Example 1, the span of the triangular cone truss of this example is 60m and the height is 1 / 16 of the span; the spacing between adjacent triangular cone trusses is 9m.
[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A triangular pyramid truss offshore photovoltaic support system, characterized in that: The invention comprises pile foundations (1) arranged in a plurality of rows and columns, wherein each row of pile foundations (1) is provided with a triangular pyramid truss, and adjacent triangular pyramid trusses are connected in the row direction by a plurality of groups of transverse plane trusses (5); the top of the triangular pyramid truss is connected with a double column assembly, the top of the double column assembly is connected with a photovoltaic panel purlin (7), and a photovoltaic panel (6) is installed on the photovoltaic panel purlin (7).
2. The triangular pyramid truss offshore photovoltaic support system according to claim 1, characterized in that: The triangular pyramid truss comprises a triangular pyramid truss lower chord (3) arranged on the top of the pile foundation (1); two triangular pyramid truss upper chords (2) are arranged above the triangular pyramid truss lower chord (3); a plurality of tripods are arranged between the triangular pyramid truss lower chord (3) and the two triangular pyramid truss upper chords (2); three triangular pyramid truss lower webs (4) are arranged between adjacent tripods; and the connection points between the tripods and the triangular pyramid truss lower chord (3) and the triangular pyramid truss upper chord (2) are the rod end connection points of the triangular pyramid truss lower webs (4).
3. The triangular pyramid truss offshore photovoltaic support system according to claim 2, characterized in that: The lower web member (4) of the triangular pyramid truss is hingedly arranged with the pile foundation (1).
4. The triangular pyramid truss offshore photovoltaic support system according to claim 2, characterized in that: The transverse plane truss (5) comprises a transverse connecting system upper chord (5-1) whose two ends are connected to the lower web members (4) of adjacent triangular pyramid trusses, and a transverse connecting system lower chord (5-2) whose two ends are connected to the upper chord members (2) of adjacent triangular pyramid trusses, and the transverse connecting system upper chord (5-1) and the transverse connecting system lower chord (5-2) are staggeredly connected via a plurality of transverse connecting system web members (5-3).
5. The triangular pyramid truss offshore photovoltaic support system according to claim 2, characterized in that: The double column assembly comprises a front column (9) and a rear column (10) arranged in a front-to-back manner, the front column (9) and the rear column (10) being vertically mounted on a triangular pyramid truss upper chord (2), and the top ends of the front column (9) and the rear column (10) being connected to another triangular pyramid truss upper chord (2) via an inclined beam (8).
6. The triangular pyramid truss offshore photovoltaic support system according to claim 5, characterized in that: The photovoltaic panel purlin (7) in the middle of the photovoltaic panel (6) is connected to one end of the front diagonal brace (11), and the other end of the front diagonal brace (11) is connected to the bottom end of the rear column (10).
7. The triangular pyramid truss offshore photovoltaic support system according to any one of claims 1 to 6, characterized in that: The span of the triangular pyramid truss is 15-60m, and the height is 1 / 12-1 / 16 of the span.
8. The triangular pyramid truss offshore photovoltaic support system according to any one of claims 1 to 6, characterized in that: The distance between adjacent triangular cone trusses is 5-9m.
9. The triangular pyramid truss offshore photovoltaic support system according to any one of claims 1 to 6, characterized in that: The lower part of the pile foundation (1) is arranged in the seabed mud surface (14), and the top part is arranged above the wave line (13).