Novel large-span assembly type photovoltaic structure system

Abstract

The utility model relates to the technical field of photovoltaic supports, in particular to a novel large-span assembly type photovoltaic structure system which comprises arch ribs, upper chords, inclined struts, rigid web members and stand columns. The upper chord members are arranged at the tops of the stand columns; the photovoltaic panel is arranged at the top of the upper chord; the arch ribs are prefabricated arch ribs, and the arch ribs are arranged between every two adjacent stand columns as lower chord members; the left end and the right end of the arch rib are connected with the left end and the right end of the upper chord through inclined struts respectively. A plurality of rigid web members are arranged between the upper chord member and the inclined strut or between the upper chord member and the arch rib, and the end parts of the adjacent rigid web members are sequentially connected to form a plurality of triangular structures which are symmetrically distributed by taking a connecting line of central points of the upper chord member, the arch rib and the inclined strut as a symmetry axis. According to the utility model, the inclined struts and the rigid web members which play a role in reinforcing and supporting are arranged between the arch ribs and the upper chord members, so that the deformation trend of the arch ribs is resisted, and the overall stability of a photovoltaic structure system can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic brackets, and particularly relates to a novel large-span assembled photovoltaic structure system. Background Technique

[0002] Photovoltaic power generation is based on the principle of the photovoltaic effect. Using photovoltaic modules to directly convert solar energy into electrical energy is the main way of solar power generation. Photovoltaic power generation technology has the advantages of low noise pollution, low energy consumption, easy installation and maintenance, etc. However, due to the low energy density of solar energy, the floor area of the photovoltaic power generation system is huge.

[0003] The current construction of photovoltaic power generation fields mainly relies on steel brackets and is carried out in some mountainous, desert and plain areas with good conditions. Traditional photovoltaic brackets mainly consist of portal steel or equal-height trusses. The column spacing is generally 6m, 8m, 10m, 12m, and the span is usually 9m - 36m. From a mechanical point of view, it (especially the form of portal steel beams) mainly undergoes flexural-shear deformation, with low bearing capacity and limited spanning ability. As the span and load increase, to make the structure meet the safety acceptance standard, it is necessary to increase the material usage (if the structural form is not further optimized, it is difficult to meet the requirements even with a large increase when the span is very large), resulting in a decline in economy. For example, the Chinese invention patent with the application number 202311375314.5 discloses a high-load large-span photovoltaic flexible bracket structure, including two groups of symmetric steel columns. The number of each group of steel columns is two, and a fixed frame is fixedly installed between the tops of the two steel columns in each group. A number of groups of steel frames are arranged between the two groups of steel columns. The number of each group of steel frames is two, and a steel beam is fixedly installed between the tops of the two steel frames in each group. A number of struts and steel cables are arranged between adjacent steel beams. The tops of the struts and steel cables are provided with evenly distributed photovoltaic panels. However, in actual implementation, due to the influence of the weight of the photovoltaic panels, the self-weight of the brackets, as well as the additional influence of snow load and wind load, the middle part of the photovoltaic bracket with a larger span is prone to sink and deform, affecting the bearing capacity and stability of the photovoltaic panels.

[0004] Therefore, how to design and optimize the structural system of the photovoltaic bracket to achieve the effect of large span and not easy to deform has become an urgent problem to be solved in this field. Content of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems proposed in the above background technique, and provides a novel large-span assembled photovoltaic structure system with reasonable structure. By setting diagonal braces and rigid web members that play a role in strengthening support between the arch ribs and the upper chord members to resist the deformation tendency of the arch ribs, the overall stability of the photovoltaic structure system can be enhanced.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A novel large-span prefabricated photovoltaic structure system includes arch ribs, upper chord bars, diagonal braces, rigid web members, and columns. There are several columns, and the upper chord bars are arranged on the tops of the columns. Photovoltaic panels are arranged on the tops of the upper chord bars. The arch ribs are prefabricated arch ribs, and the arch ribs are arranged as lower chord bars between two adjacent columns. The left and right ends of the arch ribs are respectively connected to the left and right ends of the upper chord bars through diagonal braces. Multiple rigid web members are arranged between the upper chord bars and the diagonal braces or between the upper chord bars and the arch ribs. The ends of adjacent rigid web members are connected in sequence, and the rigid web members are continuously and symmetrically distributed from the mid-span to the left and right ends, forming several triangular structures that are symmetrically distributed with the connection line of the center points of the upper chord bars, arch ribs, and diagonal braces as the axis of symmetry.

[0008] By adopting the above technical solution, the triangular structures formed among the upper chord bars, arch ribs, and multiple diagonal braces have high-strength bearing capacity and stability. The upper chord bars and arch ribs are constrained by the corner points of the triangular structures, strengthening the weak parts of the arch ribs and upper chord bars and also improving the linear stiffness. At the same time, the continuous arrangement of the rigid web members can also reduce the bending and shear deformation of the structure.

[0009] As a further improvement of the present utility model, the number of the arch ribs is multiple, and the multiple arch ribs are arranged in a row along the length direction of the upper chord bar, each arch rib constituting one span, and the ends of the arch ribs of adjacent spans are joined and connected.

[0010] By adopting the above technical solution, the arch ribs are a continuous system, and the overall structure stiffness of the photovoltaic structure system is large, the bearing capacity is high, and the stability is good.

[0011] As a further improvement of the present utility model, stiffening web members are arranged between the tops of the columns and the diagonal braces or between the tops of the columns and the arch ribs. The stiffness of the stiffening web members is greater than that of the rigid web members.

[0012] By adopting the above technical solution, since the stiffness of the stiffening web members is greater than that of the rigid web members, the arch ribs and diagonal braces can be divided into spans, and the whole structure can be stiffened, improving the overall stiffness of the structure.

[0013] As a further improvement of the present utility model, the arch ribs adopt a steel structure or a reinforced concrete composite structure; the rigid web members adopt a steel structure.

[0014] By adopting the above technical solution, the photovoltaic structure system of the present utility model has a light self-weight and low cost.

[0015] As a further improvement of the present utility model, the distance between adjacent columns is 6 - 12 m, and the span of the arch ribs is 9 - 36 m.

[0016] By adopting the above technical solution, compared with the traditional photovoltaic support, the photovoltaic structure system of the present utility model has a large span.

[0017] As a further improvement of the present utility model, the inner angle of the triangular structure is 40° to 120°.

[0018] Due to adopting the above technical solution, the present utility model has the following beneficial effects:

[0019] The strength bearing capacity, dynamic characteristics and stability of a novel large-span prefabricated photovoltaic structure system of the present utility model are greatly improved compared with the traditional photovoltaic support. The present utility model uses the arch rib as the lower chord, adds a rigid rod above it as the upper chord, and uses diagonal braces to connect both ends of the upper chord to the arch feet, and connects them with rigid web members inside, thus forming a truss structure with an arch, thereby improving the local stiffness and overall stiffness of the structure. Among them, the present utility model is provided with a plurality of rigid web members between the upper chord and the diagonal brace or between the upper chord and the arch rib, and the rigid web members are continuously and symmetrically arranged from the mid-span to both sides, forming a number of triangular structures symmetrically distributed with the connecting line of the center points of the upper chord, arch rib and diagonal brace as the axis of symmetry. The upper chord and the arch rib are constrained by the corner points of the triangular structure, so that the weak parts of the arch rib and the upper chord are strengthened, and the linear stiffness is also improved. At the same time, the continuous arrangement of the rigid web members can also reduce the bending and shear deformation of the structure, making the photovoltaic structure system of the present utility model have high strength bearing capacity and stability.

[0020] The present utility model is provided with stiffening web members between the top of the column and the diagonal brace or between the top of the column and the arch rib, and the stiffness of the stiffening web member is greater than that of the rigid web member, which can play a role in dividing the span of the arch rib and the diagonal brace and stiffen the whole structure.

[0021] The novel large-span prefabricated photovoltaic structure system of the present utility model adopts a prefabricated construction method to construct modular production and on-site splicing and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the layout form of the novel large-span prefabricated photovoltaic structure system of an embodiment of the present utility model;

[0023] Figure 2 It is the structural schematic diagram of the multi-span continuous form of the novel large-span prefabricated photovoltaic structure system of the present utility model;

[0024] Among them, the reference signs in the drawings are: 1. Arch rib; 2. Upper chord; 3. Diagonal brace; 4. Rigid web member; 5. Column; 6. Stiffening web member. DETAILED DESCRIPTION OF THE INVENTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] Based on the structural design concept of green environmental protection and sustainable development, the present utility model optimizes and transforms the traditional portal steel photovoltaic structure, and proposes a new type of large-span prefabricated photovoltaic structure system. Please refer to Figure 1, including the arch rib 1, upper chord 2, diagonal brace 3, rigid web member 4 and column 5; a plurality of columns 5 are provided, and the upper chord 2 is arranged at the top of the column 5; the photovoltaic panel is arranged at the top of the upper chord 2; the arch rib 1 is a precast arch rib 1, and the arch rib 1 is arranged as a lower chord between two adjacent columns 5; the left and right ends of the arch rib 1 are respectively connected to the left and right ends of the upper chord 2 through diagonal braces 3; a plurality of rigid web members 4 are arranged between the upper chord 2 and the diagonal brace 3 or between the upper chord 2 and the arch rib 1, and the ends of the adjacent rigid web members 4 are connected in sequence, and the rigid web members 4 are continuously symmetrically distributed from the mid-span to the left and right ends, forming a plurality of triangular structures symmetrically distributed with the connecting line of the center points of the upper chord 2, arch rib 1 and diagonal brace 3 as the axis of symmetry, and the interior angle of the triangular structure is 40° to 120°. By changing the photovoltaic structure system into a series of triangles, a new type of truss structure is formed, thereby effectively restraining the upper chord 2 and the arch rib 1 and improving the overall stiffness of the structure. In addition, in the design and construction of the new system, the mounting frame of the photovoltaic panel can be fully integrated into the load-bearing system, improving the material utilization rate to further save building materials.

[0028] Taking the arch rib 1 as the lower chord, adding a rigid rod above it as the upper chord 2, and connecting the two ends of the upper chord 2 to the arch feet with diagonal braces 3, and connecting them with rigid web members 4 inside, so as to form a truss structure with an arch, thereby improving the local stiffness and overall stiffness of the structure. Among them, in the present utility model, a plurality of rigid web members 4 are arranged between the upper chord 2 and the diagonal brace 3 or between the upper chord 2 and the arch rib 1, and the rigid web members 4 are continuously symmetrically arranged from the mid-span to both sides, forming a plurality of triangular structures symmetrically distributed with the connecting line of the center points of the upper chord 2, arch rib 1 and diagonal brace 3 as the axis of symmetry. By constraining the upper chord 2 and the arch rib 1 through the corner points of the triangular structure, the weak parts of the arch rib 1 and the upper chord 2 are strengthened, and the linear stiffness is also improved. At the same time, the continuous arrangement of the rigid web members 4 can also reduce the bending and shear deformation of the structure, so that the photovoltaic structure system of the present utility model has high-strength bearing capacity and stability.

[0029] The number of the arch ribs 1 is one or more, such as Figure 2 shown, in an embodiment of the present utility model, the number of the arch ribs 1 is multiple, and the multiple arch ribs 1 are arranged in a row along the length direction of the upper chord 2, each arch rib 1 forms a span, and the ends of the arch ribs 1 of adjacent spans are joined and connected.

[0030] A stiffening web member 6 is arranged between the top of the column 5 and the diagonal brace 3 or between the top of the column 5 and the arch rib 1; the stiffness of the stiffening web member 6 is greater than that of the rigid web member 4. Adding the stiffening web member 6 can play a role in dividing the span of the arch rib 1 and the diagonal brace 3 and stiffen the whole structure, improving the overall stiffness of the structure.

[0031] The arch rib 1 is made of a steel structure or a reinforced concrete composite structure; the upper chord 2, the rigid web member 4, and the stiffening web member 6 are made of a steel structure. In this embodiment, the photovoltaic structure system is mainly composed of a steel structure, which can be modularly produced in a factory and then transported to the site for rapid splicing and installation, shortening the construction period; by installing photovoltaic power generation components on the photovoltaic structure system, the goal of self-sufficient power consumption and selling surplus power to the grid can be achieved.

[0032] As a further improvement of the present utility model, the distance between adjacent columns 5 is 6 - 12 m, and the span of the arch rib 1 is 9 - 36 m.

[0033] The above description is a detailed description of the preferred and feasible embodiment of the present utility model, but the embodiment is not intended to limit the scope of the patent application of the present utility model. Any equivalent changes or modifications made under the technical spirit disclosed by the present utility model shall fall within the scope of the patent covered by the present utility model.

Claims

1. A new type of large-span assembled photovoltaic structure system, characterized by: The invention comprises an arch rib (1), an upper chord (2), a diagonal brace (3), a rigid web member (4) and a column (5); a plurality of columns (5) are provided, and the upper chord (2) is provided at the top of the column (5); the arch rib (1) is a prefabricated arch rib (1), and the arch rib (1) is provided between two adjacent columns (5) as a lower chord; the left and right ends of the arch rib (1) are respectively connected to the left and right ends of the upper chord (2) through a diagonal brace (3); a plurality of rigid web members (4) are provided between the upper chord (2) and the diagonal brace (3) or between the upper chord (2) and the arch rib (1), and the ends of the adjacent rigid web members (4) are connected in sequence, and the rigid web members (4) are continuously and symmetrically distributed from the middle of the span to the left and right ends, forming a plurality of triangular structures symmetrically distributed with the line connecting the center points of the upper chord (2), the arch rib (1) and the diagonal brace (3) as the symmetry axis.

2. According to claim 1, a novel large-span assembled photovoltaic structure system is characterized by: The number of the arch ribs (1) is multiple, and the multiple arch ribs (1) are arranged in a row along the length direction of the upper chord (2), each arch rib (1) constitutes a span, and the ends of the arch ribs (1) of adjacent spans are closed and connected.

3. According to claim 1, a novel large-span assembled photovoltaic structure system is characterized by: A stiffening web member (6) is provided between the top of the column (5) and the diagonal brace (3) or between the top of the column (5) and the arch rib (1); the stiffening web member (6) has a greater stiffness than the rigid web member (4).

4. According to claim 1, a novel large-span assembled photovoltaic structure system is characterized by: The arch rib (1) is a steel structure or a reinforced concrete composite structure; the rigid web member (4) is a steel structure.

5. According to claim 1, a novel large-span assembled photovoltaic structure system is characterized by: The distance between adjacent columns (5) is 6-12m, and the span of the arch rib (1) is 9-36m.

6. The novel large-span assembled photovoltaic structure system according to claim 1 is characterized in that: The internal angle of the triangular structure is 40° to 120°.

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