Photovoltaic support supporting structure capable of reducing bending moment of single stand column pile body
By eccentrically arranging photovoltaic modules and adding additional diagonal bracing to the photovoltaic support structure, the problem of increased pile foundation costs caused by large pile bending moments is solved, achieving structural safety, reliability, and economy. It is suitable for photovoltaic projects with large tilt angles and high wind pressure.
Patent Information
- Application Number
- CN202520009518.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing photovoltaic support structures, while meeting the minimum distance between the modules and the ground, have large bending moments in the piles, leading to increased pile foundation costs and making the structure neither economical nor safe.
The photovoltaic support structure adopts an eccentric arrangement of photovoltaic modules and adds additional diagonal bracing. The structure is connected by purlins and diagonal beams to reduce the bending moment of a single column pile and increase the structural stiffness and bearing capacity.
It effectively reduces the engineering cost of pile foundations, improves the safety and economy of the structure, and is suitable for photovoltaic projects with large tilt angles and high wind pressure.
Smart Images
Figure CN223859083U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to photovoltaic power generation technical field especially a photovoltaic support support structure of reducing single stand column pile body bending moment. BACKGROUND
[0002] With the gradually implementation of global urgent demand for renewable energy, photovoltaic industry is developing rapidly in the nationwide field. As the most core key system of photovoltaic power station, the cost of photovoltaic support structure has the pivotal role to the income of photovoltaic power station, and the form of support structure directly influences the stress state of the lower support pile, thereby indirectly influences the pile foundation cost. Single stand column photovoltaic support structure is widely used in compound photovoltaic power generation projects such as agricultural light complementation, forest light complementation, fishery light complementation and grass light complementation. According to the policy requirement of each place, photovoltaic module distance ground is generally not less than 1-2.5m, resulting in the need of improving the bending bearing capacity of single stand column photovoltaic support pile foundation, so selecting reasonable photovoltaic support structure should consider the safety and economy of the upper support structure and the structural stress rationality of the lower support pile, therefore a photovoltaic support structure meeting the above two requirements is needed. SUMMARY
[0003] The utility model needs to solve the technical problem to provide a kind of photovoltaic support support structure of reducing single stand column pile body bending moment, on the basis of meeting the lowest distance of component from ground, based on the scheme of traditional single stand column photovoltaic support, the upper structure and component are overall offset to front, additional diagonal brace is simultaneously increased, so as to effectively reduce bending moment of pile body under the action of front wind pressure and back wind suction, the safe and reliable construction and operation of photovoltaic power station can be realized, while saving pile foundation, reduce engineering cost.
[0004] To solve the above technical problem, the technical scheme adopted by the utility model is:
[0005] A kind of photovoltaic support support structure of reducing single stand column pile body bending moment, including the pile foundation being set on ground, the stand column and diagonal brace being set on the both sides of pile foundation, two inclined beams being set on stand column and diagonal brace and the several rows of photovoltaic modules being arranged on inclined beam by purlin;
[0006] The stand column includes front stand column and rear stand column, and the front stand column and the rear stand column are fixed on the pile foundation by the upper hoop and the lower hoop;
[0007] The diagonal brace includes front diagonal brace, rear diagonal brace and additional diagonal brace;The upper end of the front diagonal brace is connected with the lower end of the inclined beam, and the lower end of the front diagonal brace is connected with the lower hoop;The upper end of the rear diagonal brace is connected with the upper end of the inclined beam, and the lower end of the rear diagonal brace is connected with the lower hoop;The upper end of the additional diagonal brace is connected with the middle part of the inclined beam, and the lower end of the additional diagonal brace is connected with the upper hoop;
[0008] The photovoltaic module arrangement center is eccentric to the pile center by a certain distance.
[0009] The further improvement of the technical scheme of the utility model lies in that: the inter-column inclined beams and the transverse struts are arranged between the front column and the rear column.
[0010] The further improvement of the technical scheme of the utility model lies in that: all the connecting nodes of the inclined struts are bolted.
[0011] The further improvement of the technical scheme of the utility model lies in that: two purlins are arranged for each row of photovoltaic modules.
[0012] Thanks to the above technical scheme, the utility model has the following technical progress:
[0013] 1. The photovoltaic support structure capable of reducing the bending moment of the single-column pile body has significant progress in technology, is successfully applied in the photovoltaic project of the gobi desert large base with large inclination and high wind pressure, and has multiple beneficial effects.
[0014] 2. In the traditional photovoltaic support structure, the gravity centers of the photovoltaic modules and the support are arranged coaxially with the pile, in the case of back wind, the bending moment of the pile body is extremely large, which brings many inconveniences to the selection of the pile foundation, and causes the pile diameter, reinforcement or wall thickness to be increased; therefore, the traditional photovoltaic support scheme increases the engineering cost of the photovoltaic pile foundation, and the project benefit is not ideal.
[0015] By comparison, the utility model adopts a photovoltaic support structure capable of reducing the bending moment of the single-column pile body, the bending moment of the lower pile foundation pile body is reduced through the eccentric arrangement scheme of the support structure, thereby the pile diameter, wall thickness or reinforcement is reduced, and the economy is significantly improved; meanwhile, the additional inclined struts are added, the structural rigidity and the bearing capacity are increased, the inclined beam span is reduced, and the structural safety and reliability are ensured. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a schematic view of the photovoltaic support structure capable of reducing the bending moment of the single-column pile body of the utility model;
[0017] Figure 2 is a front wind stress schematic view of the photovoltaic support structure capable of reducing the bending moment of the single-column pile body of the utility model;
[0018] Figure 3 is a back wind stress schematic view of the photovoltaic support structure capable of reducing the bending moment of the single-column pile body of the utility model;
[0019] Wherein, 1, front column, 2, rear column, 3, pile foundation, 4, upper hoop, 5, lower hoop, 6, inclined beam, 7, intercolumnar inclined beam, 8, transverse strut, 9, purlin, 10, front inclined brace, 11, rear inclined brace, 12, additional inclined brace, 13, photovoltaic module. DETAILED DESCRIPTION
[0020] The utility model will be made further detailed description in combination with the drawings and examples:
[0021] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.
[0022] In the description of the utility model, the meaning of "several" is at least two, for example, two, three, etc., unless otherwise specifically limited.
[0023] As shown in Figure 1 A photovoltaic support structure for reducing the bending moment of a single-column pile body, comprising a pile foundation 3 arranged on the ground, columns and inclined braces arranged on both sides of the pile foundation 3, two inclined beams 6 arranged on the columns and inclined braces, and a plurality of rows of photovoltaic modules 13 arranged on the inclined beams 6 through purlins 9.
[0024] The columns include front columns 1 and rear columns 2, and the front columns 1 and the rear columns 2 are fixed on the pile foundation 3 through upper hoops 4 and lower hoops 5; an intercolumnar inclined beam 7 and a transverse strut 8 are arranged between the front columns 1 and the rear columns 2.
[0025] The inclined braces include front inclined braces 10, rear inclined braces 11 and additional inclined braces 12; the upper ends of the front inclined braces 10 are connected with the lower ends of the inclined beams 6, and the lower ends of the front inclined braces 10 are connected with the lower hoops 5; the upper ends of the rear inclined braces 11 are connected with the upper ends of the inclined beams 6, and the lower ends of the rear inclined braces 11 are connected with the lower hoops 5; the upper ends of the additional inclined braces 12 are connected with the middle parts of the inclined beams 6, and the lower ends of the additional inclined braces 12 are connected with the upper hoops 4; all the connecting nodes are bolted connections.
[0026] Each row of photovoltaic modules 13 is arranged with two purlins 9, and two inclined beams 6 are arranged at both ends of the purlins 9; the center of the arrangement of the photovoltaic modules 13 is eccentric from the center of the pile foundation 3 by a certain distance e.
[0027] Working principle:
[0028] Figure 1、 2 , 3, e is the eccentricity of the center of gravity of the component from the center of the pile 3, the eccentricity is determined according to the specific circumstances of each project, and needs to be combined with the inclination angle and wind pressure for trial calculation; the eccentricity G / M0 is the self-weight of the upper structure and the eccentric bending moment on the center of the pile; F Y is the wind pressure of the front wind acting on the photovoltaic component 13, F YX / M Z is the backward horizontal component of the wind pressure of the front wind acting on the photovoltaic component 13 and the additional bending moment corresponding to the pile 3, F YZ / M X is the downward vertical component of the wind pressure of the front wind acting on the photovoltaic component 13 and the additional bending moment corresponding to the pile 3; F X is the wind suction of the back wind acting on the photovoltaic component 13, F YX / M Z is the forward horizontal component of the wind pressure of the back wind acting on the photovoltaic component 13 and the additional bending moment corresponding to the pile 3, F YZ / M X is the upward vertical component of the wind pressure of the back wind acting on the photovoltaic component 13 and the additional bending moment corresponding to the pile 3.
[0029] 1. The photovoltaic component 13 and the upper support are arranged eccentrically forward, so that the direct gravity of the upper part exerts an eccentric bending moment M0 on the pile 3;
[0030] 2. When the front wind comes, the wind pressure is vertically inclined downward force F Y , which is correspondingly decomposed into backward horizontal component F YX and downward vertical component F YZ , wherein F YZ generates bending moment M X on the pile 3, and the additional bending moment M0 generated by gravity can offset part of F YX , which generates bending moment M Z on the pile 3, thereby reducing the bending moment of the pile body;
[0031] 3. When the back wind comes, the wind suction is vertically inclined upward force F X , which is correspondingly decomposed into backward horizontal component F XX and downward vertical component F XZ , wherein F XZ generates bending moment M X on the pile 3, which can offset part of the additional bending moment M0 generated by gravity and F YX , which generates bending moment M Z on the pile 3, thereby reducing the bending moment of the pile body;
[0032] 4. Due to the forward offset of the photovoltaic component 13, the span of the inclined beam between the front inclined support and the front stand column is increased, in order to reduce the amount of steel while ensuring the stability of the structure, an additional inclined support is added.
[0033] In summary, the photovoltaic support structure support system capable of reducing the single stand column pile body bending moment provided by the utility model not only has significant progress in technology, but also is successfully applied in the gobi large base photovoltaic project with large inclination angle and high wind pressure, and multiple beneficial effects are shown.
Claims
1. A photovoltaic racking support structure that reduces the bending moment of a single post pile, characterized by: The application relates to a photovoltaic support structure, which comprises a pile foundation (3) arranged on the ground, vertical columns and inclined braces arranged on both sides of the pile foundation (3), two inclined beams (6) arranged on the vertical columns and the inclined braces, and a plurality of rows of photovoltaic modules (13) arranged on the inclined beams (6) through purlins (9); The vertical columns comprise front vertical columns (1) and rear vertical columns (2), and the front vertical columns (1) and the rear vertical columns (2) are fixed on the pile foundation (3) through upper hoops (4) and lower hoops (5); The inclined braces comprise front inclined braces (10), rear inclined braces (11) and additional inclined braces (12); the upper ends of the front inclined braces (10) are connected with the lower ends of the inclined beams (6), and the lower ends of the front inclined braces (10) are connected with the lower hoops (5); the upper ends of the rear inclined braces (11) are connected with the upper ends of the inclined beams (6), and the lower ends of the rear inclined braces (11) are connected with the lower hoops (5); the upper ends of the additional inclined braces (12) are connected with the middle portions of the inclined beams (6), and the lower ends of the additional inclined braces (12) are connected with the upper hoops (4); The arrangement centers of the photovoltaic modules (13) are eccentric to the center of the pile foundation (3) by a certain distance.
2. The PV support structure of claim 1, wherein: Inter-column inclined beams (7) and transverse support rods (8) are arranged between the front vertical columns (1) and the rear vertical columns (2).
3. The PV support structure of claim 1, wherein: All the connecting nodes of the inclined braces are bolted.
4. The PV support structure of claim 1, wherein: Two purlins (9) are arranged for each row of photovoltaic modules (13).