Flexible photovoltaic support for highway slope

Abstract

The utility model discloses a flexible photovoltaic support used for an expressway slope. Only a row of photovoltaic assemblies are arranged along a long and narrow area of the expressway slope. The flexible photovoltaic support comprises two prestressed steel strands, the length directions of the two prestressed steel strands are arranged along the long and narrow area of the highway slope, and the lower surface of each photovoltaic module is connected with the two prestressed steel strands; the two ends of each prestressed steel strand are connected with end stand columns, and the lower portions of the end stand columns are connected with end piles. The middle of the prestressed steel strand is further connected with a plurality of middle stand columns, and the lower portions of the middle stand columns are connected with middle piles; the upper portion of the end stand column is further connected with a longitudinal pull rod, the side, away from the prestressed steel strand, of the longitudinal pull rod is arranged downwards in an inclined mode, and the lower portion of the longitudinal pull rod is connected with an expanded head anchor rod. According to the scheme, the occupied area is reduced, the highway slope can be well matched, and the influence of instantaneous wind load generated by traffic flow on the flexible photovoltaic support can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the support structure technical field of photovoltaic module, concretely relates to a flexible photovoltaic support for highway side slope. BACKGROUND

[0002] Under the drive of various green low carbon policies, the traffic field has appeared some photovoltaic + highway pilot projects. How to combine the characteristics of highway side slope to arrange photovoltaic components reasonably is the key problem needed to be solved in structure design. The current photovoltaic components installed on highway side slope mainly adopt the form of fixed support, that is, the traditional fixed photovoltaic support structure. These fixed photovoltaic supports arranged on highway side slope transfer the load to the foundation by setting reinforced concrete buttress foundation or micro pile foundation on highway side slope. The advantage of the traditional fixed photovoltaic support foundation scheme lies in simple design and construction technology, and these technologies are familiar to most technical personnel in the industry, but the disadvantage lies in large number of foundations and huge construction workload. The traditional flexible support has the advantages of large span and small number of foundations, but due to the high arrangement height of components and the large number of component rows of the traditional flexible support, it cannot be applied to such narrow and long areas as highway side slope. SUMMARY

[0003] The technical problem to be solved by the utility model lies in: providing a flexible photovoltaic support for highway side slope, solving the problems such as large construction amount or unsuitability for highway side slope of the existing scheme, and realizing better adaptation to such narrow and long areas as highway side slope, so that the economy of flexible support and foundation can be fully developed.

[0004] According to the technical scheme of the utility model, the utility model provides a flexible photovoltaic support for highway side slope, the highway side slope is a narrow and long area, only one row of photovoltaic components is arranged along the narrow and long area of the highway side slope, and the photovoltaic components are arranged on the flexible photovoltaic support; the flexible photovoltaic support comprises two prestressed steel strands, the length direction of the two prestressed steel strands is arranged along the narrow and long area of the highway side slope, the lower surface of each photovoltaic component is connected with the two prestressed steel strands; the two ends of each prestressed steel strand are connected with end columns, the lower part of the end column is connected with an end pile, and the lower part of the end pile is buried below the ground surface of the highway side slope; the middle part of the prestressed steel strand is also connected with a plurality of middle columns, the lower part of the middle column is connected with a middle pile, and the lower part of the middle pile is buried below the ground surface of the highway side slope; the upper part of the end column is also connected with a longitudinal pull rod, the longitudinal pull rod is arranged obliquely downward on the side away from the prestressed steel strand, the lower part of the longitudinal pull rod is connected with an expanded head anchor rod, and the lower part of the expanded head anchor rod is buried below the ground surface of the highway side slope.

[0005] Further, the end columns of the two prestressed steel strands correspond to each other, and an end cross bar is connected between the two corresponding end columns.

[0006] Further, the middle columns of the two prestressed steel strands correspond to each other, and a middle cross bar is connected between the two corresponding middle columns.

[0007] Further, the two prestressed steel strands are arranged in parallel, one of the two prestressed steel strands is located obliquely below the other, and the plane where the photovoltaic module is located is inclined to the horizontal line.

[0008] Further, in the two longitudinal pull rods located at the same end in the length direction of the two prestressed steel strands, the lengths of the two longitudinal pull rods are different, and one of the two longitudinal pull rods is located obliquely above or below the other.

[0009] Further, in one flexible photovoltaic support, the number of the end columns, the end piles, the longitudinal pull rods and the expanded head anchor rods is four, and the number of the middle columns and the middle piles is an even number greater than four.

[0010] Further, the upper end of the end column has a through hole, and the end of the prestressed steel strand passes through the through hole of the upper end of the end column and is fixed by a steel strand anchor.

[0011] Further, the distance between the lowest point of the photovoltaic module and the ground of the highway slope is 500mm±50mm.

[0012] Further, the two prestressed steel strands are both φ15.2mm prestressed steel strands.

[0013] Further, the longitudinal pull rod is a φ17.8mm prestressed steel strand.

[0014] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0015] The utility model discloses a flexible photovoltaic support for highway side slope, is a kind of more suitable photovoltaic support type for the highway side slope situation, only arrange a row of photovoltaic module in long and narrow area, to be applicable to most highway side slope;By structural configuration measure, the height of flexible photovoltaic support is reduced, the number of rows of flexible photovoltaic support component arrangement is reduced, and the horizontal force of flexible photovoltaic support is transmitted to foundation using enlarged head anchor rod, reduce the land area of end base (end pile), the flexible photovoltaic support and foundation scheme after modification can better fit the long and narrow area such as highway side slope, and the influence of instantaneous wind load generated by traffic flow on flexible photovoltaic support can be reduced;Traditional flexible photovoltaic support mainly uses the form of cast-in-place pile or independent foundation to transmit the horizontal force of pre-stressed steel strand to foundation, the utility model uses enlarged head anchor rod to transmit the horizontal force of pre-stressed steel strand to foundation, does not need concrete formwork and steel bar binding, can shorten the construction time of flexible photovoltaic support foundation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the plane structure schematic diagram of the utility model's flexible photovoltaic support plan view.

[0017] Figure 2 It is the elevation schematic diagram of the utility model's flexible photovoltaic support.

[0018] Explanation of reference numerals in the drawings:

[0019] 1, photovoltaic module;2, pre-stressed steel strand;3, end stand;4, end pile;5, highway side slope ground;6, middle stand;7, middle pile;8, longitudinal pull rod;9, enlarged head anchor rod;10, end cross bar;11, middle cross bar;12, steel strand anchorage device. DETAILED DESCRIPTION

[0020] The utility model provides a flexible photovoltaic support for highway side slope, solve the problem that the prior art is large in construction quantity or not suitable for highway side slope, more specifically, the purpose of the utility model lies in finding a flexible photovoltaic support structure scheme applicable to highway side slope.The scheme of the utility model reduces the height of flexible support by structural configuration measure, reduces the number of rows of flexible photovoltaic support component arrangement, and the horizontal force of flexible support and foundation is transmitted to foundation using enlarged head anchor rod, reduce the land area of end base, the flexible photovoltaic support and foundation scheme after modification can better fit the long and narrow area such as highway side slope, and the influence of instantaneous wind load generated by traffic flow on flexible photovoltaic support can be reduced.

[0021] Please refer to Figure 1 , Figure 2The utility model discloses a kind of flexible photovoltaic supports for highway side slope, mainly it is for the highway side slope to propose a suitable photovoltaic support type, highway side slope is long and narrow area and will be affected by the airflow of high-speed driving car, existing photovoltaic support scheme exists construction amount or larger ground occupation etc.

[0022] More specifically, photovoltaic module 1 is arranged on flexible photovoltaic support, and flexible photovoltaic support includes two prestressed steel strands 2, the length direction of two prestressed steel strands 2 is arranged along the long and narrow area of highway side slope, and the lower surface of each photovoltaic module 1 is connected with two prestressed steel strands 2;A plurality of photovoltaic modules 1 are arranged side by side along prestressed steel strand 2, that is, a row of photovoltaic modules 1 along the highway side slope is formed. Photovoltaic module 1 is connected and fixed with prestressed steel strand 2 through connecting device.

[0023] The lower part of end column 3 is connected with end pile 4, and the lower part of end pile 4 is buried below the ground surface 5 of highway side slope. A plurality of middle columns 6 are also connected in the middle of prestressed steel strand 2, the lower part of middle column 6 is connected with middle pile 7, and the lower part of middle pile 7 is buried below the ground surface 5 of highway side slope. Longitudinal pull rod 8 is also connected to the upper part of end column 3, which is arranged obliquely downward on the side away from prestressed steel strand 2, and the lower part of longitudinal pull rod 8 is connected with expanded head anchor rod 9, and the lower part of expanded head anchor rod 9 is buried below the ground surface 5 of highway side slope.

[0024] More specifically, two prestressed steel strands 2 are arranged in parallel, and one of the two prestressed steel strands 2 is located obliquely below the other one;So that the plane where photovoltaic module 1 is located is inclined to the horizontal line, and in the period of sufficient sunlight, the angle of photovoltaic module 1 towards the sunlight is suitable, which helps to improve the photovoltaic power generation. In the embodiment, both of the two prestressed steel strands 2 are φ15.2mm (i.e. nominal diameter 15.2mm) prestressed steel strands.

[0025] The upper end of end column 3 has a through hole, and the end of prestressed steel strand 2 passes through the through hole of the upper end of end column 3 and is fixed by steel strand anchor 12. End column 3 and end pile 4 are vertically arranged, and the lower part of end pile 4 has sufficient burial depth to ensure the bearing strength. The end columns 3 of the two prestressed steel strands 2 correspond, for example Figure 2 As shown from the side, the positions of end columns 3 coincide. Furthermore, end cross bar 10 is connected between the two corresponding end columns 3, for example, the upper ends of the two end columns 3 are connected by end cross bar 10.

[0026] The form of the central column 6 and central pile 7 is the same as or similar to that of the end column 3 and end pile 4. Both the central column 6 and central pile 7 are vertically arranged, and the lower part of the central pile 7 has sufficient embedment depth to ensure bearing strength. The central columns 6 of the two prestressed steel strands 2 correspond to each other, and a central crossbar 11 connects the corresponding two central columns 6; for example, the upper ends of the two central columns 6 are connected by the central crossbar 11. Preferably, there are end crossbars 10 and central crossbars 11, thereby ensuring the integrity of the entire flexible support system.

[0027] The longitudinal tie rod 8 and the enlarged head anchor rod 9 are inclined relative to the highway slope ground 5, so that the whole forms, for example Figure 2 The trapezoidal structure is shown. The "longitudinal" of the longitudinal tie rod 8 is relative to the two substantially parallel prestressed steel strands 2, corresponding to the length direction of the prestressed steel strands 2, and is mainly used to transmit force in this direction. The longitudinal tie rod 8 is a prestressed steel strand with a diameter of φ17.8mm (i.e., nominal diameter 17.8mm). The enlarged head anchor rod 9 mainly includes an anchor rod and an enlarged head section. The enlarged head section is located at the bottom. Both the anchor rod and the enlarged head section are buried in the highway slope ground 5. The anchor rod extends out of the ground and connects to the longitudinal tie rod 8.

[0028] Furthermore, in a flexible photovoltaic support structure, there are four end columns 3, four end piles 4, four longitudinal tie rods 8, and four enlarged head anchor rods 9 (two sets), and four or more central columns 6 and four or more central piles 7 (multiple sets evenly distributed). In the two longitudinal tie rods 8 located at the same end along the length of the two prestressed steel strands 2, the lengths of the two longitudinal tie rods 8 can be different, and one of the two longitudinal tie rods 8 can be located diagonally above or below the other to achieve various tilt angles for the component arrangement; correspondingly, the burial depth of the enlarged head sections of the two enlarged head anchor rods 9 located at the same end also differs; thus better adapting to highway slope conditions.

[0029] The main concept and principle of this utility model are as follows. The flexible photovoltaic support structure located on a highway slope should be able to withstand wind load, snow load, gravity load, seismic load, and the combined effect of the above loads. When the photovoltaic module is subjected to wind load, snow load, and gravity load, these loads are directly transferred to the two prestressed steel strands supporting the photovoltaic module. The two prestressed steel strands are fixed to the end columns and are vertically supported by the middle column. The middle column, through the central pile, transfers a portion of the vertical force borne by the prestressed steel strands to the foundation. The end columns, through the end piles, transfer a portion of the vertical force borne by the prestressed steel strands to the foundation. Furthermore, the longitudinal horizontal force borne by the prestressed steel strands is transferred to the foundation through longitudinal tie rods and enlarged head anchor rods.

[0030] The economy of the flexible photovoltaic support and foundation is often related to the number of the support, that is, the more the number of the support, the better the economy, and the "strip" structure of the highway slope is suitable for the structure type of the flexible support, so that the economy of the flexible support and foundation can be fully exerted. Furthermore, in order to make the traditional flexible photovoltaic support be applied to the highway slope, the flexible photovoltaic support provided by the utility model can realize that the distance between the lowest point of the photovoltaic module 1 and the ground 5 of the highway slope is about 500mm (for example, 500mm±50mm), the height of the module arrangement is reduced, and the influence of the instantaneous wind load of the vehicle flow on the photovoltaic module and the support is reduced; at the same time, in order to adapt to the long and narrow area such as the highway slope, the scheme only arranges one row of photovoltaic modules, so that it can be applied to most of the highway slopes; in addition, the horizontal force of the flexible support of the scheme is transmitted to the foundation by the anchor rod with an enlarged head, so that the safety can be ensured and the occupied area can be reduced.

[0031] In conclusion, the flexible photovoltaic support for the highway slope is a more suitable photovoltaic support type for the highway slope, one row of photovoltaic modules is arranged in the long and narrow area, so that it can be applied to most of the highway slopes; the height of the flexible photovoltaic support is reduced by the structural construction measures, the number of the rows of the flexible photovoltaic support modules is reduced, the horizontal force of the flexible photovoltaic support is transmitted to the foundation by the anchor rod with an enlarged head, the occupied area of the end foundation (that is, the end pile) is reduced, the modified flexible photovoltaic support and foundation scheme can better adapt to the long and narrow area such as the highway slope, and the influence of the instantaneous wind load generated by the vehicle flow on the flexible photovoltaic support can be reduced; the traditional flexible photovoltaic support mainly transmits the horizontal force of the pre-stressed steel strand to the foundation in the form of the cast-in-place pile or the independent foundation, the anchor rod with an enlarged head is used to transmit the horizontal force of the pre-stressed steel strand to the foundation in the utility model, the concrete formwork and the steel bar binding are not needed, and the construction time of the flexible photovoltaic support foundation can be shortened.

[0032] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, rather than limit them; obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model; for the convenience of description, only the parts related to the utility model are shown in the drawings. The embodiments in the utility model and the features in the embodiments can be combined with each other without conflict; the technical solutions of the foregoing embodiments are modified, or some technical features are replaced equivalently, without making the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A flexible photovoltaic mount for use on a highway embankment, characterized by, The expressway slope is a long and narrow area, and a row of photovoltaic modules (1) is arranged along the long and narrow area of the expressway slope, and the photovoltaic modules (1) are arranged on a flexible photovoltaic support; The flexible photovoltaic support comprises two prestressed steel strands (2), the length direction of the two prestressed steel strands (2) is arranged along the long and narrow area of the expressway slope, the lower surface of each photovoltaic module (1) is connected with the two prestressed steel strands (2), the two ends of each prestressed steel strand (2) are connected with end columns (3), the lower part of the end column (3) is connected with an end pile (4), the lower part of the end pile (4) is embedded below the ground (5) of the expressway slope, a plurality of middle columns (6) are further connected to the middle part of the prestressed steel strand (2), the lower part of the middle column (6) is connected with a middle pile (7), and the lower part of the middle pile (7) is embedded below the ground (5) of the expressway slope, and a longitudinal pull rod (8) is further connected to the upper part of the end column (3), the longitudinal pull rod (8) is arranged obliquely downward on the side away from the prestressed steel strand (2), the lower part of the longitudinal pull rod (8) is connected with an expanded head anchor rod (9), and the lower part of the expanded head anchor rod (9) is embedded below the ground (5) of the expressway slope.

2. The flexible photovoltaic mount for a highway embankment of claim 1, wherein, The end columns (3) of the two prestressed steel strands (2) correspond to each other, and an end cross bar (10) is connected between the two corresponding end columns (3).

3. The flexible photovoltaic mount for a highway embankment of claim 2, wherein, The middle columns (6) of the two prestressed steel strands (2) correspond to each other, and a middle cross bar (11) is connected between the two corresponding middle columns (6).

4. The flexible photovoltaic mount for a highway embankment of claim 1, wherein, The two prestressed steel strands (2) are arranged in parallel; one of the two prestressed steel strands (2) is located obliquely below the other; and the plane on which the photovoltaic module (1) is located is inclined to the horizontal line.

5. The flexible photovoltaic mount for a highway embankment of claim 4, wherein, In the two longitudinal pull rods (8) located at the same end of the length direction of the two prestressed steel strands (2), the lengths of the two longitudinal pull rods (8) are different, and one of the two longitudinal pull rods (8) is located obliquely above or below the other.

6. The flexible photovoltaic mount for a highway embankment according to any one of claims 1-5, wherein, In one flexible photovoltaic support, the number of end columns (3), end piles (4), longitudinal pull rods (8) and expanded head anchor rods (9) is four, and the number of middle columns (6) and middle piles (7) is an even number greater than four.

7. The flexible photovoltaic mount for a highway embankment according to any one of claims 1-5, wherein, The upper end of the end column (3) has a through hole, and the end of the prestressed steel strand (2) passes through the through hole of the upper end of the end column (3) and is fixed by a steel strand anchor (12).

8. The flexible photovoltaic mount for a highway embankment according to any one of claims 1-5, wherein, The distance between the lowest point of the photovoltaic module (1) and the ground (5) of the expressway slope is 500mm±50mm.

9. The flexible photovoltaic mount for a highway embankment according to any one of claims 1-5, wherein, The two prestressed steel strands (2) are both φ15.2mm prestressed steel strands.

10. The flexible photovoltaic mount for a highway embankment according to any one of claims 1-5, wherein, The longitudinal pull rod (8) is a φ17.8mm prestressed steel strand.

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