CN115483874A - High-rigidity flexible photovoltaic support and construction method thereof - Google Patents
High-rigidity flexible photovoltaic support and construction method thereof Download PDFInfo
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- CN115483874A CN115483874A CN202211250259.2A CN202211250259A CN115483874A CN 115483874 A CN115483874 A CN 115483874A CN 202211250259 A CN202211250259 A CN 202211250259A CN 115483874 A CN115483874 A CN 115483874A
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- 238000004873 anchoring Methods 0.000 claims description 28
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- 239000010959 steel Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 17
- 239000011178 precast concrete Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/10—Supporting structures directly fixed to the ground
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
- F24S25/11—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface using shaped bodies, e.g. concrete elements, foamed elements or moulded box-like elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
- F24S25/12—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface using posts in combination with upper profiles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
- F24S25/16—Arrangement of interconnected standing structures; Standing structures having separate supporting portions for adjacent modules
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/50—Arrangement of stationary mountings or supports for solar heat collector modules comprising elongate non-rigid elements, e.g. straps, wires or ropes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention relates to a high-rigidity flexible photovoltaic bracket and a construction method thereof, and the high-rigidity flexible photovoltaic bracket comprises a flexible cable assembly and a photovoltaic assembly, wherein the flexible cable assembly comprises a longitudinal flexible cable and a transverse flexible cable, and the longitudinal flexible cable is arranged between a pair of supporting frames and is in a concave arch shape; the transverse flexible cable is in an upward convex arch shape, two ends of the transverse flexible cable are anchored on the ground, and the transverse flexible cable and the longitudinal flexible cable are crossed in the projection of a plane and are connected at the crossed point; the photovoltaic module is fixed on the longitudinal flexible cable. The invention has reasonable structural design, utilizes the connected longitudinal flexible cables and transverse flexible cables to form a prestress self-balancing structure with high rigidity and good stability, the connection is convenient and reliable, and the construction is convenient.
Description
The technical field is as follows:
the invention relates to a high-rigidity flexible photovoltaic support and a construction method thereof.
The background art comprises the following steps:
the solar energy resources are rich in China, the rich solar energy resources create favorable conditions for developing and utilizing solar energy in China, and photovoltaic power generation is the most effective mode for developing and utilizing the solar energy resources at present. With the rapid development of the photovoltaic industry, land and roof resources are gradually reduced, and a plurality of mountainous regions with fluctuating terrain, fish ponds with deep water levels, mudflats with poor geological conditions and water plants with large span are limited by the traditional photovoltaic support mounting mode and are not fully utilized; in addition, the traditional ground support has poor corrosion resistance, large occupied area and high cost. Therefore, it is becoming more and more common that the traditional photovoltaic support is replaced by the flexible photovoltaic support with light dead weight, strong spanning capability, convenient construction and less occupied space. However, the existing flexible photovoltaic support system has the defects of low structural rigidity, poor stability, hidden fatigue cracking danger and the like. Therefore, it is necessary to design a safe and stable flexible photovoltaic support system.
The invention content is as follows:
the invention aims to solve the problems in the prior art, namely, the invention provides a high-rigidity flexible photovoltaic support and a construction method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: a high-rigidity flexible photovoltaic support comprises a flexible cable assembly, a photovoltaic assembly and support frames, wherein the flexible cable assembly comprises a longitudinal flexible cable and a transverse flexible cable, and the longitudinal flexible cable is arranged between a pair of support frames and is in a concave arch shape; the transverse flexible cable is in an upward convex arch shape, two ends of the transverse flexible cable are anchored on the ground, and the transverse flexible cable and the longitudinal flexible cable are crossed in the projection of the plane and are connected at the crossed point; the photovoltaic module is fixed on the longitudinal flexible cable.
Furthermore, the number of the transverse flexible cables is a plurality, the plurality of the transverse flexible cables are longitudinally distributed below the longitudinal flexible cables in parallel at intervals, and the transverse flexible cables are connected with the longitudinal flexible cables at the cross points through connecting components.
Furthermore, the connecting component comprises a vertical piece, and the upper end and the lower end of the vertical piece are both provided with spring hanging buckles or closed cable joints.
Furthermore, the vertical part is a vertical pull rod or a vertical inhaul cable.
Furthermore, the support frame comprises a cross beam, a plurality of upright columns which are distributed at intervals along the transverse direction are fixed at the bottom of the cross beam, and a support foundation is fixed at the bottom of each upright column; and two ends of the longitudinal flexible cable are anchored on the cross beam of the support frame.
Furthermore, the number of the transverse flexible cables is a plurality, the plurality of the transverse flexible cables respectively cross over the two ends of the longitudinal flexible cables, the transverse flexible cables are obliquely arranged towards the supporting frame positioned on the same side, and the transverse flexible cables are connected with the longitudinal flexible cables at the intersection points through rotating wire clamps.
Furthermore, two ends of the transverse flexible cable are anchored on the ground through transverse flexible cable anchoring piles respectively, each transverse flexible cable anchoring pile comprises an anchoring foundation and an anchoring block fixed to the top of the anchoring foundation, a pre-stressed pore channel is prefabricated in each anchoring block, and the transverse flexible cable penetrates through the pre-stressed pore channel to be anchored on the anchoring block.
The invention adopts another technical scheme that: a construction method of a high-rigidity flexible photovoltaic support comprises the following steps:
step S1, foundation construction: the photovoltaic support foundation adopts an enlarged foundation or a pile foundation, when the enlarged foundation is adopted, an open cut method is adopted, and after a foundation pit is completed, a concrete enlarged foundation is poured or a precast concrete enlarged foundation is installed after reinforcing steel bars are installed; when the pile foundation is adopted, a precast concrete solid pile, a precast concrete hollow pile, a cast-in-place concrete pile or a steel pipe pile is adopted, and the precast concrete pile foundation or the steel pipe pile foundation is constructed by adopting a hammering method, a vibration method, a pressing-in method or a water jetting method; after the cast-in-place concrete pile is formed, a reinforcement cage is installed, and the concrete pile is poured;
s2, construction of a support frame: the support frame is composed of a steel upright post and a steel cross beam, a concrete upright post and a concrete cross beam or a concrete upright post and a steel cross beam, the upright post is hoisted, the upright post is fixedly installed on the basis of the photovoltaic support, the cross beam is hoisted, the cross beam is fixedly connected with the upright post, and meanwhile, a stay cable or an inclined support is installed;
step S3, installing and tensioning a longitudinal flexible cable: arranging the longitudinal flexible cables between a pair of support frames, anchoring the longitudinal flexible cables on a cross beam of the support frames, primarily tensioning the longitudinal flexible cables, and continuously arranging the longitudinal flexible cables when the support frames have a plurality of rows;
step S4, transverse flexible cable installation: when the transverse flexible cable is arranged below the longitudinal flexible cable, the transverse flexible cable and the longitudinal flexible cable are connected through a connecting component at the cross point; when the transverse flexible cable is laterally and obliquely arranged above the longitudinal flexible cable, a rotary cable clamp is adopted to connect the intersection points of the longitudinal flexible cable and the transverse flexible cable;
s5, stretching a transverse flexible cable: stretching the transverse flexible cable to enable the transverse flexible cable to be stretched into an arch shape and have certain vertical rigidity, so that the integral stability of the longitudinal flexible cable and the transverse flexible cable is ensured;
s6, mounting the photovoltaic module: mounting a photovoltaic module on the longitudinal flexible cable;
step S7, secondary tensioning: after the photovoltaic module is laid, the transverse flexible cables or the longitudinal flexible cables or the transverse flexible cables and the longitudinal flexible cables are tensioned for the second time, so that the deformation reaches the allowable range of the design value.
Further, in step S3, when the upper and lower ends of the vertical member are closed cable joints, or one of the ends is a closed cable joint, the longitudinal flexible cable is required to pass through the closed cable joint before the longitudinal flexible cable is installed; in step S4, the transverse wire is passed through the closed socket of the vertical member when it is installed.
Further, in step S3, the longitudinal flexible cable may be anchored to the support frame without preliminary tensioning.
Compared with the prior art, the invention has the following effects: the invention has reasonable structural design, utilizes the connected longitudinal flexible cables and transverse flexible cables to form a prestress self-balancing structure with high rigidity and good stability, the connection is convenient and reliable, and the construction is convenient.
Description of the drawings:
fig. 1 is a schematic perspective view (excluding a photovoltaic module) of a first embodiment of the present invention;
FIG. 2 is a schematic view of the construction of FIG. 1 including a photovoltaic module;
FIG. 3 is a schematic front view of a spring hook according to an embodiment of the present invention;
FIG. 4 is a side view of the spring hanger of the first embodiment of the present invention;
FIG. 5 is a schematic perspective view of a second embodiment of the present invention (excluding photovoltaic modules);
FIG. 6 is a schematic perspective view of a rotary wire clamp according to a second embodiment of the present invention;
FIG. 7 is a schematic front view of a closed type rope knot in the third embodiment of the invention;
FIG. 8 is a schematic side view of a closed cable joint according to an embodiment of the present invention;
FIG. 9 is a schematic perspective view of a fourth embodiment of the present invention using diagonal braces;
FIG. 10 is a schematic perspective view of a column of the present invention;
FIG. 11 is a schematic perspective view of a sixth embodiment of the present invention;
FIG. 12 is a schematic perspective view of a seventh embodiment of the present invention;
fig. 13 is a schematic perspective view of an eighth embodiment of the present invention.
In the figure:
1-a support frame; 11-a cross beam; 12-a column; 13-a supporting foundation; 14-stay cable anchor piles; 15-stay cables; 16-longitudinal flexible cable anchors; 17-inclined support; 18-splayed upright posts; 181-inner column; 182-outer column; 2-a flexible cable assembly; 21-transverse flexible cable; 22-longitudinal flexible cable; 23-a vertical pull rod; 24-spring hanging buckle; 241-a movable rod; 242-hanging buckle body; 243-elastic rotating shaft; 244-retaining ring; 245-a connection plate; 246-bolt; 247-a tie rod connection; 25-transverse flexible cable anchoring pile; 3-a photovoltaic module; 4-closed rope knot; 41-single lug joint; 42-pouring a joint; 43-vertical guy; 5-a connecting member; 6-rotating the wire clamp; 61-hanging plates; 611 arc-shaped part; 612 a hinge projection; 613-locking protrusions; 62-a rubber protective layer; 63-rotating the connecting block; 64-a connecting rod; 65-first locking bolt; 66-a second locking bolt; 67-wire button hole.
The specific implementation mode is as follows:
the invention is described in further detail below with reference to the drawings and the detailed description.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The first embodiment is as follows: as shown in fig. 1 to 4, the high-rigidity flexible photovoltaic bracket of the invention comprises a flexible cable assembly 2, a photovoltaic assembly 3 and a support frame 1, wherein the flexible cable assembly 2 comprises a longitudinal flexible cable 22 and a transverse flexible cable 21, the longitudinal flexible cable 22 is installed between a pair of support frames 1 which are distributed front and back, and the longitudinal flexible cable 22 is in a concave arch shape; the transverse flexible cable 21 is in an upward convex arch shape, the left end and the right end of the transverse flexible cable 21 are anchored on the ground, and the transverse flexible cable 21 and the longitudinal flexible cable 22 are crossed in the projection of a plane and are connected at the crossed point; the photovoltaic modules 3 are fixed to longitudinal flexible cords 22.
In this embodiment, the number of the transverse flexible cables 21 is several, several transverse flexible cables 21 are longitudinally distributed below the longitudinal flexible cable 22 side by side at intervals, and the transverse flexible cables 21 and the longitudinal flexible cable 22 are connected at the crossing points by the connecting members 5 to form a prestressed cable system with high rigidity. The longitudinal flexible cable, the transverse flexible cable and the connecting member form a prestress self-balancing structure with high rigidity and good stability, and the longitudinal flexible cable, the transverse flexible cable and the connecting member are connected conveniently and reliably and are convenient to construct.
In this embodiment, the connecting member 5 includes a vertical member, the upper and lower ends of the vertical member are respectively provided with a spring hook 24, the spring hook 24 at the upper end of the vertical member is connected with the longitudinal flexible cable 22, and the spring hook 24 at the lower end of the vertical member is connected with the transverse flexible cable 21. The spring hanger 24 is an existing product, and includes a movable rod 241, a hanger body 242, an elastic rotating shaft 243, a retaining ring 244, a connecting plate 245, a connecting plate bolt hole, and the like, and the spring hanger can be directly hung on a flexible cable during construction, and the structure thereof will not be described herein again. Further, the vertical part is a vertical pull rod 23 or a vertical pull cable 43. When in specific use: taking the vertical member as the vertical pull rod 23 as an example, the movable rod 241 is pressed inwards, the opening of the hanging buckle body 242 is opened, the longitudinal flexible cable 22 is hung through the opening of the hanging buckle body 242 and passes through the 244 retaining ring, when the movable rod 241 is released by hand, the movable rod 241 returns outwards to be clamped with the hanging buckle body 242 under the action of the elastic rotating shaft 243, so that the flexible cable is ensured not to be separated, and the construction is convenient. The pull rod connector 247 at the upper end of the vertical pull rod 23 is connected with the connecting plate 245 at the lower end of the spring catch 24 through a bolt 246. Similarly, the transverse wires 21 and the vertical members 23 are connected in the above-mentioned manner.
In this embodiment, the supporting frame 1 includes a cross beam 11, a plurality of vertical columns 12 are fixed at the bottom of the cross beam 11 and distributed at intervals along the transverse direction, the cross beam is supported by the vertical columns at a certain height from the ground, a supporting base 13 is fixed at the bottom of the vertical columns 12, and the supporting base is fixed on the ground; the front and rear ends of the longitudinal flexible cable 22 are anchored on the cross beams 11 of the pair of support frames 1 through longitudinal flexible cable anchoring members 16.
Preferably, the vertical columns 12 and the horizontal beams 11 can be made of concrete or steel, and the supporting foundation 13 can be a pile foundation or an enlarged foundation.
In this embodiment, in the present embodiment, the projection of the horizontal flexible cable 21 and the longitudinal flexible cable 22 on the plane are crossed, and an included angle between the horizontal flexible cable and the longitudinal flexible cable in the plane projection is 75 ° to 105 °.
In this embodiment, two ends of the transverse flexible cable 21 are respectively provided with a transverse flexible cable anchoring pile 25, and the left and right ends of the transverse flexible cable are anchored on the ground through the transverse flexible cable anchoring piles 25. Further, the transverse flexible cable anchoring pile 25 comprises an anchoring foundation and an anchoring block fixed at the top of the anchoring foundation, wherein a pre-stressed duct is prefabricated inside the anchoring block, and the transverse flexible cable penetrates through the pre-stressed duct and is anchored on the anchoring block.
In this embodiment, the transverse flexible cables 21 and the longitudinal flexible cables 22 are any one or a combination of multiple steel strands, steel ropes, steel cables, or steel chains.
In this embodiment, the number of the longitudinal flexible cables is plural, and the plural longitudinal flexible cables are distributed at intervals along the transverse direction.
In the embodiment, the upright columns 12 are all vertically arranged, the outer side of each upright column is provided with a stay cable 15, the upper ends of the stay cables 15 are fixedly connected with the upright columns 12, and the lower ends of the stay cables 15 are anchored on the ground through stay cable anchoring piles 14; the stay cables 15 are arranged outside the vertical columns 12 and mainly bear tension. Preferably, the structure of the stay cable anchor pile is the same as that of the transverse flexible cable anchor pile.
In this embodiment, photovoltaic module adopts prior art, and it includes photovoltaic board and coupling assembling thereof.
Example two: as shown in fig. 5 and 6, the present embodiment is different from the first embodiment in that: the transverse flexible cables 21 are a pair, the pair of transverse flexible cables 21 respectively cross over the front end and the rear end of the longitudinal flexible cable 22, the transverse flexible cables 21 are obliquely arranged towards the support frame 1 positioned on the same side, and the transverse flexible cables 21 and the longitudinal flexible cables 22 are connected at the intersection points through the rotary wire clamps 6. The rigidity is enhanced through the inclined transverse flexible cables, the longitudinal flexible cables, the transverse flexible cables and the support frame form a self-balancing structure with high rigidity and good stability, and the three are convenient and reliable to connect and convenient to construct.
In this embodiment, the horizontal flexible cable 21 and the longitudinal flexible cable 22 intersect in the projection of the plane, and the minimum included angle between the horizontal flexible cable and the longitudinal flexible cable in the projection of the plane is 45 ° to 135 °.
In this embodiment, the arch shape of the transverse flexible cable 21 is a zigzag curve, the inclination angle between the transverse flexible cable 21 and the vertical plane is 30 to 80 degrees, the projections of the arch crown and the arch foot of the transverse flexible cable on the horizontal plane are not on the same straight line, and the connecting lines form a zigzag curve.
In this embodiment, the rotating wire clamp 6 includes two pairs of hanging plates, connect between two pairs of hanging plates and make two pairs of hanging plates can be pivoted rotating member relatively, every pair of hanging plates is all including two hanging plates 61, every hanging plate 61 includes arc portion and locates articulated convex part 612 and the locking convex part 613 at arc portion 611 both ends respectively, the articulated convex part 612 of two hanging plates articulates mutually, the arc portion 611 butt joint of two hanging plates forms flexible knot hole 67, flexible knot hole 67 is in order to do benefit to horizontal flexible cable or vertical flexible cable to pass, and connect through first locking bolt 65 between the locking convex part 613 of two hanging plates, namely: each pair of hanging plates form an openable flexible cable buckle hole 67 through hinging, and one end of each pair of hanging plates is in threaded connection with a first locking bolt 65 for locking the hanging plates 61. It should be noted that the combined structure of each pair of hanging plates can be the same as the existing suspension clamp structure, i.e. the rotating clamp is formed by combining two suspension clamps and a rotating piece.
In this embodiment, the rotating member includes connecting rod 64 and a pair of swivelling joint piece 63, and a pair of swivelling joint piece 63 is fixed on two pairs of link plates, connecting rod 64 is located between a pair of swivelling joint piece 63, and the connecting hole has all been seted up at a pair of swivelling joint piece 63 adjacent side middle part, the both ends of connecting rod 64 respectively with a pair of swivelling joint piece 63's connecting hole normal running fit, the spiro union has second locking bolt 66 on the swivelling joint piece 63, and second locking bolt 66 stretches into connecting hole and top tight connecting rod 64 to realize the locking connection pole. When the two pairs of hanging plates need to rotate freely, the second locking bolt is loosened, and the connecting rod and the rotary connecting block can rotate at the moment; and after the two pairs of hanging plates finish rotating, screwing the second locking bolt.
In this embodiment, the inner side arm of the flexible cable buckling hole 67 is provided with a rubber protection layer 62 for protecting the flexible cable.
Example three: as shown in fig. 7 and 8, the difference between the present embodiment and the first embodiment is that the structure of the connecting member is different, specifically: the connecting component comprises a vertical part, the vertical part is a vertical pull rod 23 or a vertical stay cable 43, the upper end and the lower end of the vertical part are respectively provided with a closed cable joint 4, the closed cable joint 4 at the upper end of the vertical part is connected with the longitudinal flexible cable 22, and the closed cable joint 4 at the lower end of the vertical part is connected with the transverse flexible cable 21. The closed cable segment is an existing product and is composed of a single lug joint 41 and a pouring joint 42, and the structure of the closed cable segment is not repeated. When in specific use: taking a vertical piece as the vertical pull rod 23 as an example, the lower end of the closed cable joint 4 is connected with the vertical pull rod 23 through a pouring joint 42, and during installation, the longitudinal flexible cable 22 passes through a single lug joint 41 at the upper end of the closed cable joint 4, so that the vertical pull rod 23 is hung on the longitudinal flexible cable 22. Similarly, the transverse wires 21 and the tie rods 23 are connected in the above-described manner.
Example four: as shown in fig. 9, in the present embodiment, the inclined strut 17 is pressed to balance the horizontal tension of the structure, which is different from the first embodiment in that: the inner side of each upright post 12 is respectively provided with an inclined support 17, the inclined support 17 replaces an inclined stay cable 15, the upper end of the inclined support is fixedly connected with the upright post, and the lower end of the inclined support is fixed on the ground through a foundation. The inclined strut 17 can be made of concrete materials and steel materials, and the foundation can be a pile foundation or an enlarged foundation.
Example five: as shown in fig. 10, the difference between the present embodiment and the first embodiment is the structure of the pillar, that is: each upright post comprises an inner upright post 181 and an outer upright post 182 which are distributed in a splayed shape. And no stay cable is used in this embodiment. The splayed upright post is adopted to replace the vertical upright post and the stay cable in the first embodiment to play a role. The splayed upright posts can bear the vertical force and the horizontal force of the upper structure.
Example six: as shown in fig. 11, in this embodiment, the flexible photovoltaic supports are combined and distributed, and the flexible photovoltaic supports are arranged side by side along a longitudinal direction, specifically: the photovoltaic support is provided with a plurality of support frames which are longitudinally distributed side by side at intervals, a flexible cable assembly is arranged between every two adjacent support frames, the photovoltaic assembly 3 is supported on a longitudinal flexible cable of the flexible cable assembly, and the specific structure of the flexible photovoltaic support is recorded as in the first embodiment and is not described in detail herein.
Example seven: as shown in fig. 12, in this embodiment, the flexible photovoltaic supports are combined and distributed, the flexible photovoltaic supports are arranged side by side along a transverse direction, and a specific structure of the flexible photovoltaic support is as described in the first embodiment, and is not described herein again.
Example eight: as shown in fig. 13, the structure in this embodiment is a structure in which a plurality of flexible photovoltaic supports are combined and distributed, the plurality of flexible photovoltaic supports are distributed along the transverse direction and the longitudinal direction, and the specific structure of the flexible photovoltaic support is as described in the first embodiment and is not described herein again.
The invention relates to a construction method of a high-rigidity flexible photovoltaic support, which comprises the following steps:
step S1, foundation construction: the photovoltaic support foundation adopts an enlarged foundation or a pile foundation, when the enlarged foundation is adopted, an open cut method is adopted, and after a foundation pit is completed, a concrete enlarged foundation is poured or a precast concrete enlarged foundation is installed after reinforcing steel bars are installed; when the pile foundation is adopted, a precast concrete solid pile, a precast concrete hollow pile, a cast-in-place concrete pile or a steel pipe pile is adopted, and the precast concrete pile foundation or the steel pipe pile foundation is constructed by adopting a hammering method, a vibration method, a pressing-in method or a water jetting method; after the cast-in-place concrete pile is formed, a reinforcement cage is installed, and the concrete pile is poured;
s2, construction of a support frame: the support frame is composed of a steel upright post and a steel cross beam, a concrete upright post and a concrete cross beam or a concrete upright post and a steel cross beam, the upright post is hoisted, the upright post is installed and fixed on the basis of the photovoltaic support, the cross beam is hoisted, and the cross beam is fixedly connected with the upright post and is also provided with a stay cable or an inclined support;
step S3, installing and tensioning a longitudinal flexible cable: arranging the longitudinal flexible cables between a pair of support frames, anchoring the longitudinal flexible cables on a cross beam of the support frames, primarily tensioning the longitudinal flexible cables, and continuously arranging the longitudinal flexible cables when the support frames have a plurality of rows;
step S4, transverse flexible cable installation: when the transverse flexible cable is arranged below the longitudinal flexible cable, the transverse flexible cable is connected with the longitudinal flexible cable at the cross point through the connecting component, so that the longitudinal flexible cable is connected with the transverse flexible cable; when the transverse flexible cable is laterally and obliquely arranged above the longitudinal flexible cable, a rotary cable clamp is adopted to connect the intersection points of the longitudinal flexible cable and the transverse flexible cable, so that the longitudinal flexible cable and the transverse flexible cable are connected;
s5, stretching a transverse flexible cable: stretching the transverse flexible cable to enable the transverse flexible cable to be stretched into an arch shape and have certain vertical rigidity, so that the integral stability of the longitudinal flexible cable and the transverse flexible cable is ensured;
s6, mounting the photovoltaic module: mounting a photovoltaic module on the longitudinal flexible cable;
step S7, secondary tensioning: after the photovoltaic module is laid, the transverse flexible cables or the longitudinal flexible cables or the transverse flexible cables and the longitudinal flexible cables are tensioned for the second time, so that the deformation reaches the allowable range of the design value.
Further preferably, in step S3, when the upper and lower ends of the vertical member (the vertical pull rod or the vertical cable) are closed joints, or one end of the vertical member is a closed joint, the longitudinal flexible cable is required to pass through the closed joints before the longitudinal flexible cable is installed. In step S4, the transverse flexible cable is passed through the closed cable joint of the vertical member (vertical rod or vertical cable) during installation.
It is further preferred that in step S3, the longitudinal wire may be anchored to the support frame without preliminary tensioning.
The invention has the advantages that: the inhaul cable self-balancing structure system with high rigidity, good stability and strong fatigue resistance is formed by the longitudinal flexible cables and the transverse flexible cables which are connected, the structure enhances the rigidity and the stability of the flexible structure by using the least transverse inhaul cables, reduces the fatigue cracking risk of the inhaul cables, is suitable for small-area photovoltaic supports, and is also suitable for large-area photovoltaic supports in an array mode. The structure is simple and convenient to construct, low in manufacturing cost, safe and reliable in construction, and the adopted construction method is beneficial to forming a self-balancing stress system.
If the invention discloses or relates to parts or structures which are fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using a bolt or screw connection) can also be understood as: non-detachable fixed connections (e.g. riveting, welding) can, of course, also be replaced by one-piece structures (e.g. manufactured in one piece using a casting process) (unless it is obvious that one-piece processes cannot be used).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.
Any part provided by the invention can be assembled by a plurality of independent components, or can be manufactured by an integral forming process.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a flexible photovoltaic support of big rigidity, includes flexible cable subassembly, photovoltaic module and support frame, its characterized in that: the flexible cable assembly comprises a longitudinal flexible cable and a transverse flexible cable, and the longitudinal flexible cable is arranged between the pair of support frames and is in a concave arch shape; the transverse flexible cable is in an upward convex arch shape, two ends of the transverse flexible cable are anchored on the ground, and the transverse flexible cable and the longitudinal flexible cable are crossed in the projection of the plane and are connected at the crossed point; the photovoltaic module is fixed on the longitudinal flexible cable.
2. The high-rigidity flexible photovoltaic bracket according to claim 1, wherein: the number of the transverse flexible cables is a plurality, the transverse flexible cables are longitudinally distributed below the longitudinal flexible cables side by side at intervals, and the transverse flexible cables are connected with the longitudinal flexible cables at the cross points through connecting components.
3. The high-rigidity flexible photovoltaic bracket according to claim 2, wherein: the connecting component comprises a vertical piece, and the upper end and the lower end of the vertical piece are provided with spring hanging buckles or closed cable joints.
4. The high-rigidity flexible photovoltaic bracket according to claim 3, wherein: the vertical piece is a vertical pull rod or a vertical inhaul cable.
5. The high-rigidity flexible photovoltaic bracket according to claim 1, wherein: the supporting frame comprises a cross beam, a plurality of vertical columns which are distributed at intervals along the transverse direction are fixed at the bottom of the cross beam, and a supporting foundation is fixed at the bottom of each vertical column; and two ends of the longitudinal flexible cable are anchored on the cross beam of the support frame.
6. The high-rigidity flexible photovoltaic bracket according to claim 1, wherein: the transverse flexible cables are arranged in an inclined mode towards the supporting frame located on the same side, and the transverse flexible cables are connected with the longitudinal flexible cables at the crossing points through rotating wire clamps.
7. The high-rigidity flexible photovoltaic bracket according to claim 1, wherein: two ends of the transverse flexible cable are anchored on the ground through a transverse flexible cable anchoring pile respectively, the transverse flexible cable anchoring pile comprises an anchoring foundation and an anchoring block fixed to the top of the anchoring foundation, a pre-stressed pore passage is prefabricated in the anchoring block, and the transverse flexible cable penetrates through the pre-stressed pore passage and is anchored on the anchoring block.
8. A construction method of a high-rigidity flexible photovoltaic support is characterized by comprising the following steps: the high-rigidity flexible photovoltaic bracket comprising the high-rigidity flexible photovoltaic bracket as set forth in any one of claims 1 to 7, comprising the steps of:
step S1, foundation construction: the photovoltaic support foundation adopts an enlarged foundation or a pile foundation, when the enlarged foundation is adopted, an open excavation method is adopted, and after the foundation pit is completed, the concrete enlarged foundation is poured or the precast concrete enlarged foundation is installed after reinforcing steel bars are installed; when the pile foundation is adopted, a precast concrete solid pile, a precast concrete hollow pile, a cast-in-place concrete pile or a steel pipe pile is adopted, and the precast concrete pile foundation or the steel pipe pile foundation is constructed by adopting a hammering method, a vibration method, a pressing-in method or a water jetting method; after the cast-in-place concrete pile is formed, a reinforcement cage is installed, and the concrete pile is poured;
s2, construction of a support frame: the support frame is composed of a steel upright post and a steel cross beam, a concrete upright post and a concrete cross beam or a concrete upright post and a steel cross beam, the upright post is hoisted, the upright post is fixedly installed on the basis of the photovoltaic support, the cross beam is hoisted, the cross beam is fixedly connected with the upright post, and meanwhile, a stay cable or an inclined support is installed;
step S3, installing and tensioning a longitudinal flexible cable: arranging the longitudinal flexible cables between a pair of support frames, anchoring the longitudinal flexible cables on a cross beam of the support frames, primarily tensioning the longitudinal flexible cables, and continuously arranging the longitudinal flexible cables when the support frames have a plurality of rows;
step S4, transverse flexible cable installation: when the transverse flexible cables are arranged below the longitudinal flexible cables, the transverse flexible cables and the longitudinal flexible cables are connected through connecting components at the cross points; when the transverse flexible cable is laterally and obliquely arranged above the longitudinal flexible cable, a rotary cable clamp is adopted to connect the intersection points of the longitudinal flexible cable and the transverse flexible cable;
s5, stretching a transverse flexible cable: stretching the transverse flexible cables to enable the transverse flexible cables to be stretched into an arch shape and have certain vertical rigidity, so that the integral stability of the longitudinal flexible cables and the transverse flexible cables is guaranteed;
s6, mounting the photovoltaic module: mounting a photovoltaic module on the longitudinal flexible cable;
step S7, secondary tensioning: after the photovoltaic module is laid, the transverse flexible cables or the longitudinal flexible cables or the transverse flexible cables and the longitudinal flexible cables are tensioned for the second time, so that the deformation reaches the allowable range of the design value.
9. The construction method of the high-rigidity flexible photovoltaic bracket according to claim 8, characterized by comprising the following steps: in step S3, when the upper end and the lower end of the vertical piece are closed cable joints or one end of the vertical piece is a closed cable joint, a longitudinal flexible cable penetrates through the closed cable joints before the longitudinal flexible cable is installed; in step S4, the transverse wire is passed through the closed socket of the vertical member when it is installed.
10. The construction method of the high-rigidity flexible photovoltaic bracket according to claim 8, characterized by comprising the following steps: in step S3, the longitudinal wires may be anchored to the support frame without preliminary tensioning.
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| CN202211250259.2A CN115483874A (en) | 2022-10-13 | 2022-10-13 | High-rigidity flexible photovoltaic support and construction method thereof |
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| CN202211250259.2A CN115483874A (en) | 2022-10-13 | 2022-10-13 | High-rigidity flexible photovoltaic support and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116145817A (en) * | 2023-04-17 | 2023-05-23 | 北京市建筑工程研究院有限责任公司 | Cable net structure with multiple flexible cable edges and forming method thereof |
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2022
- 2022-10-13 CN CN202211250259.2A patent/CN115483874A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116145817A (en) * | 2023-04-17 | 2023-05-23 | 北京市建筑工程研究院有限责任公司 | Cable net structure with multiple flexible cable edges and forming method thereof |
| CN116145817B (en) * | 2023-04-17 | 2023-08-15 | 北京市建筑工程研究院有限责任公司 | Cable net structure with multiple flexible cable edges and forming method thereof |
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