CN216086536U - Point-supported fish belly type cable truss photovoltaic support system - Google Patents
Point-supported fish belly type cable truss photovoltaic support system Download PDFInfo
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- CN216086536U CN216086536U CN202122116564.XU CN202122116564U CN216086536U CN 216086536 U CN216086536 U CN 216086536U CN 202122116564 U CN202122116564 U CN 202122116564U CN 216086536 U CN216086536 U CN 216086536U
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- 241000251468 Actinopterygii Species 0.000 title claims abstract description 17
- 210000001015 abdomen Anatomy 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 73
- 239000010959 steel Substances 0.000 claims abstract description 73
- 239000000725 suspension Substances 0.000 claims abstract description 60
- 230000006835 compression Effects 0.000 claims abstract description 27
- 238000007906 compression Methods 0.000 claims abstract description 27
- 230000000087 stabilizing effect Effects 0.000 claims description 25
- 239000002689 soil Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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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
A point-supported fish-bellied cable truss photovoltaic support system comprises an end support system and a point-supported fish-bellied cable truss support system; the end support system comprises a foundation, a steel upright post or a steel truss and a support system; the foundation comprises an independent foundation and a ground anchor pile; the independent foundation is fixedly connected with the bottom end of the steel upright post or the steel truss; the ground anchor pile is connected with the top of the steel upright post or the steel truss through the stay cable; the stress suspension cable in the point-supported fish belly type cable truss supporting system is provided with an upper suspension cable and a lower suspension cable, two ends of the upper suspension cable are connected with the end part support system, and two ends of the lower suspension cable are positioned above two ends of the upper suspension cable and are in supporting connection through an end part compression rod; the bottom end of the end pressed rod is connected with the end bracket system; the middle part of the lower suspension cable is positioned below the upper suspension cable and is connected with the upper suspension cable through a middle compression rod; the end part and the middle part of the compression rod are distributed along the prestressed suspension cable at equal intervals; the system is more balanced in stress, is not easy to generate overlarge load and bending moment locally, and is small in steel consumption, small in self weight, strong in preassembly and convenient to construct.
Description
Technical Field
The utility model belongs to the technical field of the photovoltaic support technique and specifically relates to flexible photovoltaic support.
Background
In recent years, to adapt to special installation environments, such as: the flexible photovoltaic support is more and more widely applied in fishery, mountain forest land, sewage treatment plants and the like. Suffer from deficiencies in flexible scaffold architecture and architecture:
1. the flexible support steel cable and the photovoltaic assembly frame are complex in connection structure, inconvenient to install and unreliable in connection;
2. the flexible support steel cable only depends on applying prestress to provide rigidity, resonance is easily generated under the working condition of wind vibration, components are hidden and cracked, and the power generation efficiency is reduced;
3. along with the increase of the span of the flexible support, the prestress applied to the steel cable is correspondingly increased due to the increase of the load borne by the steel cable, the requirement on the boundary condition of the whole support is higher, and the economic cost is sharply increased.
4. The flexible support is limited by the structural form characteristics, and the steel cable creep, prestress loss and the like need to be tensioned for the second time along with the conditions of time, temperature and the like.
And for the flexible photovoltaic support field:
the solar photovoltaic flexible support is characterized in that photovoltaic panels are installed on rows of steel cables, and two ends of each steel cable are connected through rigid supports. Meanwhile, in order to reduce the bending moment of the top supports at the two ends, external tension stay cables or internal rigid inclined supports are adopted at the two ends of the supports. The cable steel strand is used as a main bearing component and has the advantages of high flexibility, light weight and high rigidity. The pre-stress provides it with a sufficient stiffness.
The cable structure has the following characteristics.
1 can only bear tensile force and can not bear pressure, and the rigidity of the cable is mainly derived from geometric rigidity and is mainly provided by prestress.
2, the tense state presents linear characteristics, and the other states present nonlinear characteristics.
Stress relaxation and loss can be generated by 3 cables, the deflection is large, and the cables need to be pre-tensioned in long-term operation.
4 the structure belongs to the flexibility, to photovoltaic module's structural loss under unfavorable operating mode such as wind load unpredictable.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides the point-supported fish-bellied cable truss photovoltaic support system which is more balanced in stress, less prone to generate overlarge load and bending moment locally, capable of meeting the stress requirement of column bottom overturn resistance, small in steel consumption, small in self weight, low in manufacturing cost, strong in preassembly, convenient to construct and capable of greatly shortening the construction period.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a some prop up fish belly formula cable truss photovoltaic mounting system which characterized in that: comprises an end support system and a point support fish belly type cable truss support system;
the end support system comprises a foundation, a steel upright post or a steel truss and a support system; the foundation comprises an independent foundation and a ground anchor pile; the independent foundation is fixedly connected with the bottom end of the steel upright post or the steel truss; the ground anchor pile is connected with the top of the steel upright post or the steel truss through a stay cable;
the point-supported fish belly type cable truss supporting system comprises a prestressed suspension cable, a connecting piece and a compression rod;
the prestressed suspension cable is provided with an upper suspension cable and a lower suspension cable, two ends of the upper suspension cable are respectively connected with the end part bracket system, and two ends of the lower suspension cable are positioned above two ends of the upper suspension cable and are in supporting connection through an end part compression rod; the bottom end of the end compression rod is connected with the end bracket system; the middle part of the lower suspension cable is positioned below the upper suspension cable and is connected with the upper suspension cable through a middle compression rod; the end part compression rod and the middle part compression rod are both vertically arranged; the end part compression rods and the middle part compression rods are distributed along the prestressed suspension cable at equal intervals.
As a further technical scheme of the utility model: the foundation further comprises a pile foundation, the pile foundation is located under the ground, the upper end of the pile foundation is fixedly connected with the independent foundation, and the lower end of the pile foundation is fixed into a foundation soil layer.
Further, the method comprises the following steps: in each foundation, two ground anchor piles are arranged.
Further: the support body is a stay cable, and the upper end of the stay cable is connected with the steel upright post or the steel truss; the lower end of the stay cable is connected with the ground anchor pile.
Further, the method comprises the following steps: each foundation is correspondingly provided with two stay cables, and the stress directions of the two stay cables are arranged in parallel.
Further: the support system further comprises an inclined support, and the inclined support and the inclined stay cable are respectively arranged on two sides of the steel stand column.
Further: the steel truss comprises a horizontal steel beam or a horizontal steel truss.
Further: the point-supported fish-belly type cable truss support system further comprises a stabilizing cable, wherein the bottom end of the stabilizing cable is connected to an independent foundation or the bottom of the steel upright post/steel truss; the upper end of the stabilizing cable is connected with the lower suspension cable and the upper suspension cable in sequence; the stabilizing cables comprise a left stabilizing cable and a right stabilizing cable; the left side stabilizing cable and the right side stabilizing cable are symmetrically arranged along the middle lines of the upper suspension cable and the lower suspension cable.
The utility model has the beneficial effects that: when the installed photovoltaic module is subjected to wind load, snow load, cable tension prestress and self load, the top of the end steel frame column can generate large horizontal tension, so that the horizontal force and the bending moment of the bottom of the foundation are large, the horizontal force generated by the pretension is balanced by adopting inclined pull or inclined strut, and the bending moment of the bottom of the steel column is offset to meet the stress requirement of the bottom of the column for resisting overturning. According to the cable-stayed scheme, horizontal deformation is generated at the top of the steel truss support, the steel truss is balanced by the tension of the ground anchor pile, only vertical pressure exists in the steel truss, the angle position of the ground anchor pile needs to be optimized for many times in the structural calculation process, and the balance tension is optimized. The point-supported fish-bellied cable truss supporting system has the advantages of small steel consumption, small dead weight, low manufacturing cost, strong preassembly and convenience in construction because the stay cables are thin and the rigidity ratio of the cable structure is larger, and the construction period is greatly shortened.
Drawings
The utility model will be further explained and explained with reference to the drawings and examples:
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a partial schematic structural view of the end bracket system of the embodiment of FIG. 1;
FIG. 3 is a partial schematic structural view of the point-supported fish belly-type cable truss support system of the embodiment of FIG. 1;
FIG. 4 is a partial schematic structural view of an end bracket system according to the second embodiment;
FIG. 5 is a partial schematic structural view of an end bracket system according to a third embodiment;
in the figure: 1, 1a independent foundation, 1b pile foundation and 1c anchor pile;
2a steel upright posts and 2b steel trusses; 3a horizontal steel beam and 3b horizontal steel truss;
4, a support system, 4a stay cable and 4b inclined support;
5 prestressed suspension cables, 5a upper suspension cables and 5b lower suspension cables;
6, connecting pieces;
7 compression rods, 7a end compression rod and 7b middle compression rod;
8, stabilizing cables;
9, fixing the clamp by the component; 10 a photovoltaic module.
Detailed Description
As shown in fig. 1-3, the point-supported fish-bellied cable truss photovoltaic support system comprises an end support system and a point-supported fish-bellied cable truss support system.
The end support system comprises a foundation 1, a steel truss 2b and a support system 4.
The foundation comprises an independent foundation 1a and a ground anchor pile 1 c. The independent foundation 1a is fixedly connected with the bottom end of the steel truss 2 b; and the ground anchor pile 1c is connected with the top of the steel truss 2b through a stay cable 4 a. In this embodiment, the foundation 1 further includes a pile foundation 1b, the pile foundation 1b is located under the ground, the upper end of the pile foundation 1b is fixedly connected with the independent foundation 1a, and the lower end of the pile foundation 1b is fixed in the foundation soil layer.
The point-supported fish belly type cable truss supporting system comprises a prestressed suspension cable 5, a connecting piece 6 and a compression rod 7.
The prestressed suspension cable 5 is provided with an upper suspension cable 5a and a lower suspension cable 5b, two ends of the upper suspension cable 5a are respectively connected with the end part bracket system, and two ends of the lower suspension cable 5b are positioned above two ends of the upper suspension cable and are in supporting connection through an end part compression rod 7 a; the bottom end of the end pressed rod 7a is connected with the end bracket system; the middle part of the lower suspension cable 5b is positioned below the upper suspension cable 5a and is connected with the upper suspension cable 5a through a middle compression rod 7 b; the end pressed rod 7a and the middle pressed rod 7b are both vertically arranged; the end compression rods 7a and the middle compression rods 7b are distributed along the prestressed suspension cable 5 (including the upper suspension cable 5a and the lower suspension cable 5b) at equal intervals.
When the photovoltaic module is installed, the photovoltaic module is connected with the connecting piece 6 through the module fixing clamps at the four corners. The connecting pieces 6 are correspondingly connected with the corresponding end pressed rods or middle pressed rods respectively.
This embodiment is further: in each group of the foundation, two ground anchor piles 1c are arranged.
In the embodiment, the support body is a stay cable 4a, and the upper end of the stay cable is connected with the steel truss; the lower end of the stay cable is connected with the ground anchor pile 1 c.
In addition, each group of the foundation 1 is correspondingly provided with two stay cables 4a, and the stress directions of the two stay cables are arranged in parallel.
In this embodiment, the steel truss 2b includes a horizontal steel beam 3a or a horizontal steel truss 3 b.
This embodiment is further provided with: the point-supported fish-bellied cable truss support system further comprises a stabilizing cable 8, wherein the bottom end of the stabilizing cable 8 is connected to the bottom of the steel truss 2 b/on the independent foundation 1a, preferably on the independent foundation 1 a; the upper end of the stabilizing cable 8 is connected with the lower suspension cable 5b and the upper suspension cable 5a in sequence; the stabilizing cable 8 comprises a left stabilizing cable and a right stabilizing cable; the left side stabilizing cable and the right side stabilizing cable are symmetrically arranged along the middle lines of the upper suspension cable 5a and the lower suspension cable 5 b.
Example two: as shown in fig. 4, the difference from the first embodiment is that the steel truss is replaced with a steel column 2 a; further, each set of foundations comprises 1 independent foundation 1a and two ground anchor piles 1 c. The rest is the same as the first embodiment.
Example three: as shown in fig. 5, this embodiment is different from the second embodiment in that: each set of foundations comprises two independent foundations 1a and one ground anchor pile 1 c. The difference is that: the support system also comprises an inclined support 4b, and the inclined support and the inclined stay cable are respectively arranged at two sides of the steel upright post. The rest is the same as the embodiment.
When the photovoltaic module 10 is under the action of wind load, snow load, cable tension prestress and self load, the top of the end steel frame column can generate large horizontal tension, so that the horizontal force and the bending moment at the bottom of the foundation are large, the horizontal force and the bending moment are balanced by adopting an independent foundation and a pile foundation, the foundation is overlarge inevitably, and the economic efficiency is low. Therefore, the horizontal force generated by the pretension force is balanced by adopting a cable-stayed or inclined strut scheme, and the bending moment of the steel column bottom is counteracted to meet the stress requirement of the column bottom for resisting overturning.
According to the cable-stayed scheme, horizontal deformation is generated at the top of the steel truss support, the steel truss is balanced by the tension of the ground anchor pile, only vertical pressure exists in the steel truss, the angle position of the ground anchor pile needs to be optimized for many times in the structural calculation process, and the balance tension is optimized.
The point-supported fish belly type cable truss supporting system is characterized in that photovoltaic panels are arranged on the rows of tension cables, and two ends of a steel cable are in supporting connection with end steel frames. Because the inhaul cable is thinner and the rigidity ratio of the cable structure is larger, the steel consumption is less, the self weight is small, the manufacturing cost is low, the preassembly is strong, the construction is convenient, and the construction period is greatly shortened.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the scope of the present invention, and various modifications and improvements of the present invention may be made by those skilled in the art without departing from the spirit of the present invention as defined by the appended claims.
Claims (8)
1. The utility model provides a some prop up fish belly formula cable truss photovoltaic mounting system which characterized in that: comprises an end support system and a point support fish belly type cable truss support system;
the end support system comprises a foundation (1), a steel upright post (2a) or a steel truss (2b) and a support system (4); the foundation comprises an independent foundation (1a) and an earth anchor pile (1 c); the independent foundation is fixedly connected with the bottom end of the steel upright post or the steel truss; the ground anchor pile is connected with the top of the steel upright post or the steel truss through a stay cable;
the point-supported fish belly type cable truss supporting system comprises a prestressed suspension cable (5), a connecting piece (6) and a compression rod (7);
the prestressed suspension cable is provided with an upper suspension cable and a lower suspension cable, two ends of the upper suspension cable are respectively connected with the end part bracket system, and two ends of the lower suspension cable are positioned above two ends of the upper suspension cable and are in supporting connection through an end part compression rod; the bottom end of the end compression rod is connected with the end bracket system; the middle part of the lower suspension cable is positioned below the upper suspension cable and is connected with the upper suspension cable through a middle compression rod; the end part compression rod and the middle part compression rod are both vertically arranged; the end part compression rods and the middle part compression rods are distributed along the prestressed suspension cable (5) at equal intervals.
2. The point-supported fish belly-type cable truss photovoltaic support system according to claim 1, wherein: the foundation further comprises a pile foundation (1b), the pile foundation is located under the ground, the upper end of the pile foundation is fixedly connected with the independent foundation, and the lower end of the pile foundation is fixed into a foundation soil layer.
3. A point-supported fish belly-type cable truss photovoltaic support system according to claim 1 or 2, wherein: in each foundation, two ground anchor piles are arranged.
4. The point-supported fish belly-type cable truss photovoltaic support system according to claim 1, wherein: the support body is a stay cable (4a), and the upper end of the stay cable is connected with the steel upright post or the steel truss; the lower end of the stay cable is connected with the ground anchor pile.
5. The point-supported fish-bellied cable truss photovoltaic support system of claim 4, wherein: each foundation is correspondingly provided with two stay cables (4a), and the stress directions of the two stay cables are arranged in parallel.
6. The point-supported fish-bellied cable truss photovoltaic support system as claimed in claim 1 or 5, wherein: the support system also comprises an inclined support (4b), and the inclined support and the inclined stay cable are respectively arranged at two sides of the steel upright post.
7. The point-supported fish belly-type cable truss photovoltaic support system according to claim 1, wherein: the steel truss comprises a horizontal steel beam (3a) or a horizontal steel truss (3 b).
8. The point-supported fish belly-type cable truss photovoltaic support system according to claim 1, wherein: the point-supported fish-bellied cable truss support system also comprises a stabilizing cable (8a), wherein the bottom end of the stabilizing cable is connected to an independent foundation or the bottom of the steel upright post/steel truss; the upper end of the stabilizing cable is connected with the lower suspension cable and the upper suspension cable in sequence; the stabilizing cables comprise a left stabilizing cable and a right stabilizing cable; the left side stabilizing cable and the right side stabilizing cable are symmetrically arranged along the middle lines of the upper suspension cable and the lower suspension cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122116564.XU CN216086536U (en) | 2021-09-03 | 2021-09-03 | Point-supported fish belly type cable truss photovoltaic support system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122116564.XU CN216086536U (en) | 2021-09-03 | 2021-09-03 | Point-supported fish belly type cable truss photovoltaic support system |
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| CN216086536U true CN216086536U (en) | 2022-03-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118041182A (en) * | 2024-02-20 | 2024-05-14 | 华电重工股份有限公司 | Flexible photovoltaic support erection unit, photovoltaic system and construction method of photovoltaic system |
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2021
- 2021-09-03 CN CN202122116564.XU patent/CN216086536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118041182A (en) * | 2024-02-20 | 2024-05-14 | 华电重工股份有限公司 | Flexible photovoltaic support erection unit, photovoltaic system and construction method of photovoltaic system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shuifa Clean Energy (Fushan) Co.,Ltd. Assignor: SHANDONG AOXIANG POWER ENGINEERING DESIGN CONSULTING Co.,Ltd. Contract record no.: X2023980036196 Denomination of utility model: A point supported fish belly cable truss photovoltaic support system Granted publication date: 20220318 License type: Common License Record date: 20230602 |
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| EE01 | Entry into force of recordation of patent licensing contract |