CN220173126U - Shoulder pole type triangular truss bidirectional long overhanging XIE photovoltaic structure - Google Patents
Shoulder pole type triangular truss bidirectional long overhanging XIE photovoltaic structure Download PDFInfo
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- CN220173126U CN220173126U CN202320778308.3U CN202320778308U CN220173126U CN 220173126 U CN220173126 U CN 220173126U CN 202320778308 U CN202320778308 U CN 202320778308U CN 220173126 U CN220173126 U CN 220173126U
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Abstract
The utility model belongs to the technical field of photovoltaics, and particularly relates to a shoulder pole type triangular truss bidirectional long cantilever XIE photovoltaic structure, which comprises the following components: the bearing framework comprises an overhanging bracket and a triangular truss; the cantilever at the top of the cantilever bracket and the top of the support column at the bottom of the cantilever bracket are integrally formed; the bottom of the triangular truss is fixed on the supporting column, and the top of the triangular truss is fixed on the cantilever; the force transmission component is positioned above the bearing framework and comprises a main purline, a span-reducing beam and a secondary purline which is arranged above the span-reducing beam in parallel with the main purline; the section height of the main purline is 3 times of that of the secondary purline; the main purline is arranged above the joint of the cantilever and the supporting column and above the joint of the two ends of the triangular truss and the cantilever. The utility model can solve the problems that the integral structure has lower strength and poor bending resistance, and the bearing capacity of the integral structure is not improved when the cost of the overhanging photovoltaic bracket is reduced, and more photovoltaic modules are difficult to install in the prior art, and has good market application prospect.
Description
Technical Field
The utility model belongs to the technical field of photovoltaics, and particularly relates to a shoulder pole type triangular truss bidirectional long cantilever XIE photovoltaic structure.
Background
The solar power generation converts the energy contained in sunlight into thermoelectric energy through photo-thermal conversion, photoelectric conversion and photochemical conversion and supplies power to a power grid.
The patent with the application number of CN202120204277.1 discloses a large cantilever photovoltaic bracket, which comprises at least two purlines arranged in parallel, wherein a plurality of inclined beams are arranged and are perpendicular to the purlines; and a diagonal cable disposed between adjacent diagonal beams. According to the utility model, the edge beam is arranged at the outermost end of the purline, so that the overhanging purline is integrated, the amplitude of the overhanging assembly at the two ends under the wind load effect is reduced, the rigidity of the overhanging part outside the purline plane is greatly increased, the destabilization of the overhanging end purline outside the plane can be effectively prevented, the weight of the photovoltaic bracket or the number of tubular pile foundations can be effectively reduced, the cost of the photovoltaic bracket is reduced, and the foundation cost of the tubular pile is reduced. However, the novel use does not reinforce the joint of the tubular pile and the overhanging photovoltaic bracket, so that the overall structure strength is low and the bending resistance is poor; and the bearing capacity of the whole structure is not improved when the cost of the overhanging photovoltaic support is reduced, more photovoltaic modules are difficult to install, and the economic benefit and the investment efficiency are not improved.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The utility model aims to provide a shoulder pole type triangular truss bidirectional long overhanging XIE photovoltaic structure, which solves the problems that the strength of the whole structure is low, the bending resistance is poor, the bearing capacity of the whole structure is not improved when the cost of an overhanging photovoltaic bracket is reduced, more photovoltaic modules are difficult to install, and the economic benefit and the investment efficiency are not improved in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
a shoulder pole type delta truss bi-directional long cantilever XIE photovoltaic structure comprising:
the bearing framework comprises an overhanging bracket and a triangular truss; the cantilever at the top of the cantilever bracket and the top of the support column at the bottom of the cantilever bracket are integrally formed; the bottom of the triangular truss is fixed on the supporting column, and the top of the triangular truss is fixed on the cantilever;
the force transmission component is positioned above the bearing framework and comprises a main purline, a span-reducing beam and a secondary purline which is arranged above the span-reducing beam in parallel with the main purline; the section height of the main purline is 3 times of that of the secondary purline; the main purline is arranged above the connection part of the cantilever and the supporting column and above the connection part of the two ends of the triangular truss and the cantilever.
Preferably, a plurality of web members are arranged inside the triangular truss, and the web members are connected with each other to divide the triangular truss into a plurality of triangular areas.
Preferably, 2 cantilevers which are on the same straight line with each other are arranged at the top of the support column, and 1 triangular truss is arranged below each cantilever; the 2 triangular trusses are arranged at 180 degrees, and 1 main purline is arranged above the connecting part of each triangular truss and the cantilever at the corresponding position of the top of each triangular truss.
Compared with the prior art, the utility model has the following beneficial effects:
(1) According to the carrying pole type triangular truss bidirectional long overhanging XIE photovoltaic structure, the section height of the main purline is increased to 3 times of the section height of the secondary purline, the bending resistance of the main purline is greatly improved, the material consumption of the secondary purline can be greatly reduced, the total purline consumption is reduced, and the bearing capacity of the integral structure is improved while the cost is reduced.
(2) According to the shoulder pole type triangular truss bidirectional long overhanging XIE photovoltaic structure, as the bending rigidity of the main purline is improved, more loads can be transferred from the secondary purline to the main purline by arranging the span-reducing beams between the main purline and the secondary purline, so that the span of the secondary purline can be reduced, and the force transfer path can be better.
(3) The shoulder pole type triangular truss bidirectional long cantilever XIE photovoltaic structure has the advantages that the stability of the triangular truss is good, the rigidity is high, the main internal force is axial force, the shoulder pole type triangular truss bidirectional long cantilever XIE photovoltaic structure participates in bending resistance, the calculation length of a cantilever is effectively reduced, and the overall structural strength and the bending resistance are improved.
Drawings
Fig. 1 is an external schematic view of the present embodiment 1;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a schematic view of a load-bearing framework of the present utility model;
FIG. 4 is a schematic view of the cantilever bracket of the present utility model;
FIG. 5 is a schematic view of a triangular truss of the present utility model;
FIG. 6 is an external schematic view of example 2;
fig. 7 is a front view of fig. 6;
FIG. 8 is a finite element model diagram under the midas model;
FIG. 9 is a graph of the stress of a concrete column under load combining;
FIG. 10 is a graph of concrete diagonal leg stress under load combining;
FIG. 11 is a graph of primary stringer stress under load combining;
FIG. 12 is a graph of sub purlin stress under load combining;
FIG. 13 is a graph of sub-stringer stress under load combining;
FIG. 14 is a graph of primary purlin stress under load combining;
FIG. 15 is a graph of the web member stress of the triangular truss under load combining;
FIG. 16 is a view of a component live load displacement;
FIG. 17 is a diagram of component instability;
the main reference numerals illustrate:
1. a load-bearing framework; 2. a cantilever support; 3. triangular truss; 4. a cantilever; 5. a support column; 6. reducing a span beam; 7. a main purlin; 8. secondary purlin; 9. and a web member.
Detailed Description
The following description of the embodiments of the present utility model will be apparent from the description of the embodiments of the present utility model, which is provided in part, but not in whole. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.
In the description of the present utility model, it should be noted that, as the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used for convenience of description and simplicity of description, only as to the orientation or positional relationship shown in the drawings, and not as an indication or suggestion that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.
In the description of the present utility model, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be connected between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1-2, a shoulder pole type triangular truss bi-directional long cantilever XIE photovoltaic structure, comprising:
the bearing framework 1 comprises an overhanging bracket 2 and a triangular truss 3; the middle part of the cantilever 4 at the top of the cantilever bracket 2 is integrally formed with the top of the supporting column 5 at the bottom of the cantilever bracket; the bottom of the triangular truss 3 is fixed on the supporting column 5, and the top of the triangular truss is fixed on the cantilever 4;
the force transmission component is positioned above the bearing framework 1 and comprises a main purline 7, a span-reducing beam 6 and a secondary purline 8 which is arranged above the span-reducing beam 6 in parallel with the main purline 7; the section height of the main purline 7 is 3 times of that of the secondary purline 8; the main purline 7 is installed above the connection of the cantilever 4 and the support column 5 and above the connection of the two ends of the triangular truss 3 and the cantilever 4.
In this embodiment, a plurality of web members 9 are provided inside the triangular truss 3, and the web members 9 are connected to each other to divide the triangular truss 3 into a plurality of triangular regions. The top of the support column 5 is provided with 2 cantilevers 4 which are on the same straight line, and 1 triangular truss 3 is arranged below each cantilever 4; the 2 triangular trusses 3 are arranged at 180 degrees, and 1 main purline 7 is arranged above the joint of each triangular truss 3 and the cantilever 4 at the corresponding position of the top of each triangular truss.
Example 2
Referring to fig. 6 to 7, the difference from embodiment 1 is that: the top of the supporting column 5 is provided with 4 cantilevers 4 which are mutually perpendicular, and each cantilever 4 can be equidistant or not equidistant; 1 triangular truss 3 is arranged below each cantilever 4, and the adjacent 2 triangular trusses 3 are arranged at 90 degrees; and 1 main purlines 7 are arranged above the connection part of each triangular truss 3 and the cantilever 4 at the corresponding position of the top of the triangular truss, and the main purlines 7 above different cantilevers 4 are mutually vertically staggered.
When the purline has a rectangular cross section, the purline is represented by formula i=bh 3 It can be seen that increasing the cross-sectional height of the main purline 7 to 3 times increases the bending stiffness to 27 times, thereby greatly reducing the total purline usage and facilitating cost reduction. With the improvement of the bending rigidity of the main purline 7, more load is transferred from the secondary purline 8 to the main purline 7 by arranging the span-reducing beam 6, so that the span of the secondary purline 8 can be reduced, and the optimal force transfer path can be realized.
Referring to fig. 3-5, the load-bearing framework 1 is composed of a shoulder pole type cantilever bracket 2 and a triangular truss 3. The triangular truss 3 has good stability and high rigidity, the main internal force is axial force, and the triangular truss participates in bending resistance, so that the calculated length of the cantilever 4 can be effectively reduced, and the integral structural strength and bending resistance can be improved. The main purlines 7 of the force transfer member are arranged at A, B, C due to the large bearing capacity at the column top B of the bearing skeleton 1 and at the A, C of the triangular truss 3, so that the force transfer member and the bearing skeleton 1 are optimized.
In addition, the boundaries of the bearing framework 1 can be mutually combined to form a continuous framework tripod span-reducing beam structure, so that a large-space high-bearing photovoltaic structure is created, and the application scene comprises an agricultural light complementation, a fishing light complementation, a grazing light complementation, a forest light complementation, a road light complementation photovoltaic bracket, a large parking lot photovoltaic bracket, a road network photovoltaic bracket, a large-scale competition stand canopy bracket, a beautiful village color corridor bracket, a park, a campus, a field light Fu Lianlang bracket and the like.
The carrying pole type triangular truss bidirectional long cantilever XIE photovoltaic structure has high strength bearing capacity, meets the requirement of strength bearing capacity standard under the action of load combination, has higher integral rigidity and better structural stability, solves the problems of lower integral structure strength and poor bending resistance in the prior art, simultaneously has the bearing capacity of improving the integral structure when reducing the cost of a cantilever photovoltaic bracket, can install more photovoltaic components, is beneficial to improving economic benefit and investment efficiency, and has good market application prospect.
Engineering examples
The total width of the photovoltaic bracket of the fishpond in Guangxi Qinzhou city is 24m, the longitudinal column distance Ld=9m and the column height is 5m. The scheme structure is a shoulder pole type triangular truss bidirectional overhanging XIE structure, and the arrangement is described in an embodiment 1, as shown in fig. 1 and 2.
The structure is calculated through Midas/Civil finite element software, and the strength bearing capacity, the integral rigidity and the structural stability of the structure are calculated.
The midas model is shown in fig. 8, and the rest of the units are simulated by beam units, except that the plates are simulated by plate units.
Load combination: 1.3 Xdead weight+1.5 Xlive load+1.5 Xwindload+1.3 Xlight Fu Hezai +1.3 Xroof constant load. The stresses of the main components under load combination are shown in fig. 9-15, the maximum stresses of the components are shown in table 1 below, and the materials of the components are shown in table 2 below. Wherein, through the local processing of the structure, the stress peak value of the main longitudinal beam and the secondary longitudinal beam is reduced. The maximum deflection of the structure under the action of live load is shown in figure 16, and the maximum deflection is 15.15mm. As shown in fig. 17, when a load is directly applied to the structure, the critical load coefficient for the structure to be unstable is 8.225.
Table 1 maximum stress table for each member
Table 2 materials table
| Component name | Material name | Cross-sectional shape | Cross-sectional dimension (mm) | Material dosage |
| Concrete column | C30 | Rectangular cross section | 300×300 | 0.002m3/m2 |
| Concrete diagonal leg | C30 | Rectangular cross section | 400×300 | 0.0125m3/m2 |
| Main longitudinal beam | Q355 | Cold-rolled channel steel | 600×80×25×3 | 2.42kg/m2 |
| Purlin | Q355 | Cold-rolled channel steel | 160×70×20×3 | 3.19kg/m2 |
| Secondary longitudinal beam | Q355 | Cold-rolled channel steel | 250×75×25×3.0 | 2.22kg/m2 |
| Main purlin | Q355 | Cold-rolled channel steel | 600×80×20×2.5 | 1.93kg/m2 |
| Triangular truss web member | Q355 | Angle steel | 40×4 | 0.44kg/m2 |
As can be seen from the tables above, the structure of the scheme has high strength and bearing capacity; under the combined action of the load, the maximum stress is 254.6MPa, and the standard requirement of the strength bearing capacity is met; the overall rigidity of the structure is high, and the maximum deflection of the structure under the action of live load is 15.15mm; the stability of the structure is good, and the critical load coefficient of the structure with instability is 8.225; the material consumption of the scheme is proper, the steel consumption per square meter is 10.2kg/m < 2 >, and the concrete consumption per square meter is 0.0145m < 3 >/m < 2 >.
The foregoing descriptions of specific exemplary embodiments of the present utility model are presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the utility model and its practical application to thereby enable one skilled in the art to make and utilize the utility model in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.
Claims (3)
1. The utility model provides a shoulder pole type triangle purlin two-way long XIE photovoltaic structure that encorbelments which characterized in that includes:
the bearing framework comprises an overhanging bracket and a triangular truss; the cantilever at the top of the cantilever bracket and the top of the support column at the bottom of the cantilever bracket are integrally formed; the bottom of the triangular truss is fixed on the supporting column, and the top of the triangular truss is fixed on the cantilever;
the force transmission component is positioned above the bearing framework and comprises a main purline, a span-reducing beam and a secondary purline which is arranged above the span-reducing beam in parallel with the main purline; the section height of the main purline is 3 times of that of the secondary purline; the main purline is arranged above the connection part of the cantilever and the supporting column and above the connection part of the two ends of the triangular truss and the cantilever.
2. The two-way long cantilever XIE photovoltaic structure of a shoulder pole type triangular truss according to claim 1, wherein a plurality of web members are arranged inside the triangular truss, and the web members are connected with each other to divide the triangular truss into a plurality of triangular areas.
3. The shoulder pole type triangular truss bidirectional long cantilever XIE photovoltaic structure according to claim 1, wherein 2 cantilevers which are on the same straight line with each other are arranged at the top of the supporting column, and 1 triangular truss is arranged below each cantilever; the 2 triangular trusses are arranged at 180 degrees, and 1 main purline is arranged above the connecting part of each triangular truss and the cantilever at the corresponding position of the top of each triangular truss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320778308.3U CN220173126U (en) | 2023-04-11 | 2023-04-11 | Shoulder pole type triangular truss bidirectional long overhanging XIE photovoltaic structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320778308.3U CN220173126U (en) | 2023-04-11 | 2023-04-11 | Shoulder pole type triangular truss bidirectional long overhanging XIE photovoltaic structure |
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| Publication Number | Publication Date |
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| CN220173126U true CN220173126U (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320778308.3U Active CN220173126U (en) | 2023-04-11 | 2023-04-11 | Shoulder pole type triangular truss bidirectional long overhanging XIE photovoltaic structure |
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| CN (1) | CN220173126U (en) |
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