CN115929559A - External inclined stay cable type self-balancing wind power tower drum and construction method thereof - Google Patents
External inclined stay cable type self-balancing wind power tower drum and construction method thereof Download PDFInfo
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- CN115929559A CN115929559A CN202310086099.0A CN202310086099A CN115929559A CN 115929559 A CN115929559 A CN 115929559A CN 202310086099 A CN202310086099 A CN 202310086099A CN 115929559 A CN115929559 A CN 115929559A
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- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention relates to the technical field of wind power facilities, and particularly provides an external inclined guy cable type self-balancing wind power tower drum and a construction method thereof, wherein the external inclined guy cable type self-balancing wind power tower drum comprises a foundation main body, a plurality of groups of foundation cantilever beams, a tower drum structure, a first guy cable, a second guy cable and a third guy cable; each group of basic cantilever beams comprises a plurality of basic cantilever beams which are sequentially arranged along the circumference of the basic main body; the tower drum structure is arranged on the foundation main body; the first guy cable is arranged along the bottom surface of the foundation cantilever beam, one end of the first guy cable is connected with the foundation main body, and the other end of the first guy cable is connected with the foundation cantilever beam; the second guy cable is arranged along the top surface of the foundation cantilever beam, one end of the second guy cable is connected with the foundation main body, and the other end of the second guy cable is connected with the foundation cantilever beam; one end of each third inhaul cable is connected with the tower drum structure, and the other end of each third inhaul cable is connected with the foundation cantilever beam. The invention has the advantages of simple and compact structure, clear force transmission path, simple and convenient construction, short field construction period, low manufacturing cost and strong overall stability.
Description
Technical Field
The invention relates to the technical field of wind power facilities, in particular to an external inclined guy cable type self-balancing wind power tower cylinder and a construction method thereof.
Background
In order to meet the requirement of wind power generation, a reinforced concrete tower drum structure with a large diameter and a thick wall thickness is mostly adopted for the structural design of an unconventional high-rise wind power generation tower drum, and a conventional thick reinforced concrete foundation is adopted at the bottom of the tower drum structure. The method has the advantages of multiple on-site construction steps, complex flow, long on-site construction period and easy damage to the ecological environment of the construction site.
Disclosure of Invention
The invention aims to provide an external inclined guy cable type self-balancing wind power tower cylinder and a construction method thereof, which have the advantages of simple and compact structure, clear force transmission path, simple and convenient construction, short field construction period, low manufacturing cost and strong overall stability.
In order to solve the technical problem, the invention provides an external inclined inhaul cable type self-balancing wind power tower cylinder, which comprises:
a base body;
the foundation cantilever beams are arranged along the circumference of the foundation main body in sequence;
a tower structure disposed on the foundation main body;
the first guy cable is arranged along the bottom surface of the foundation cantilever beam, one end of the first guy cable is connected with the foundation main body, and the other end of the first guy cable is connected with the foundation cantilever beam;
the second guy cable is arranged along the top surface of the foundation cantilever beam, one end of the second guy cable is connected with the foundation main body, and the other end of the second guy cable is connected with the foundation cantilever beam;
and one end of each third stay cable is connected with the tower drum structure, and the other end of each third stay cable is connected with the foundation cantilever beam.
Optionally, the external oblique guy cable type self-balancing wind power tower further comprises a foundation ring beam; the foundation ring beam is sleeved on the foundation main body, and the foundation ring beam is connected with the other end of the foundation cantilever beam.
Optionally, the external oblique guy cable type self-balancing wind power tower further comprises a foundation slab, and the foundation slab is connected with the foundation main body and the foundation cantilever beam respectively.
Optionally, the external oblique stay cable type self-balancing wind power tower further comprises a foundation side plate, the foundation side plate is arranged along the foundation ring beam, and the foundation side plate is connected with the foundation base plate.
Optionally, the external oblique guy cable type self-balancing wind power tower cylinder further comprises a soil layer, a cavity is defined by the foundation side plate, the foundation cantilever beam, the foundation bottom plate and the foundation main body, and the soil layer is arranged in the cavity.
Optionally, the horizontal cross section of the base body is a circular structure or a polygon, and the radius of the horizontal cross section of the base body is 8-20 m.
Optionally, the length of each basic cantilever beam is 10-35 m.
Optionally, the radius of the foundation ring beam is 10-35 m.
An external inclined stay cable type self-balancing wind power tower construction method comprises the following steps:
s1, excavating a foundation soil body;
s2, arranging a structural template and required steel bar components, embedding the components required by the anchoring end of the prestressed stay rope, and presetting a pipeline so as to arrange the prestressed stay rope in the foundation;
s3, pouring concrete of the foundation main body;
s4, tensioning the foundation main body and the prestressed stay cables in the foundation cantilever beam by adopting a post-tensioning method;
s5, hoisting and fixing all steel cylinders below the tower cylinder elevation of the conversion section in batches on site according to the cylinder sections;
s6, hoisting and fixing the steel cylinder conversion section;
s7, mounting an anchorage device required by fixing the stay cable on the conversion section;
s8, arranging a stay cable and tensioning the stay cable to a specified prestress;
s9, hoisting and fixing tower barrel sections in batches within the range above the tower barrel conversion section;
and S10, finally, installing wind power generation equipment at the top of the tower.
According to the self-balancing wind power tower cylinder with the inclined guy cable outside the cylinder, the self-balancing wind power tower cylinder at least has the following beneficial effects:
the self-balancing wind power tower cylinder with the inclined guy cable outside the cylinder is provided with the foundation main body, the gravity of the foundation main body provides a stable gravity center for the whole structure, the foundation cantilever beam and the foundation ring beam are arranged at the same time, and the first guy cable, the second guy cable and the third guy cable are respectively arranged on the foundation cantilever beam and the cylinder erecting structure to form a self-balancing integral system, so that the whole body has good integrity and anti-overturning capability, and the cracking of a concrete structure is avoided; the self-balancing wind power tower cylinder with the inclined guy cables outside the cylinder has clear stress and definite force transmission path, can effectively reduce and merge the thickness and the diameter of the cylinder wall of each cylinder section at the bottom of the tower cylinder structure so as to improve the operability of field hoisting and component transportation, and has less field construction steps and good structural integrity.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of an external oblique guyed self-balancing wind power tower provided in an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line 1-1 of FIG. 1;
FIG. 3 is a cross-sectional view taken at 2-2 of FIG. 1;
FIG. 4 is a top view of a self-balancing wind tower with external oblique guy cables according to an embodiment of the present invention.
Reference numerals are as follows:
1. a base body; 2. a foundation cantilever beam; 3. a foundation ring beam; 4. a tower drum structure; 5. a first cable; 6. a second cable; 7. a third cable; 8. a foundation slab; 9. a base side plate; 10. and (6) a soil layer.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "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, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present application.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1 to 4, a preferred embodiment of the present invention provides an external inclined guy cable type self-balancing wind power tower, which includes a foundation main body 1, a plurality of groups of foundation cantilever beams 2, a tower structure 4, a first guy cable 5, a second guy cable 6 and a third guy cable 7; each group of basic cantilever beams 2 comprises a plurality of basic cantilever beams 2 which are sequentially arranged along the circumference of the basic main body 1; the tower drum structure 4 is arranged on the foundation main body 1; the first guy cable 5 is arranged along the bottom surface of the foundation cantilever beam 2, one end of the first guy cable 5 is connected with the foundation main body 1, and the other end of the first guy cable 5 is connected with the foundation cantilever beam 2; the second inhaul cable 6 is arranged along the top surface of the base cantilever beam 2, one end of the second inhaul cable 6 is connected with the base main body 1, and the other end of the second inhaul cable 6 is connected with the base cantilever beam 2; one end of each third stay cable 7 is connected with the tower structure 4, and the other end of each third stay cable 7 is connected with the foundation cantilever beam 2.
In some preferred embodiments of the present invention, the self-balancing wind power tower drum with an inclined guy cable outside the drum further includes a foundation slab 8, and the foundation slab 8 is connected to the foundation main body 1 and the foundation cantilever beam 2, respectively.
In some preferred embodiments of the present invention, the self-balancing wind power tower drum with oblique guy cables outside the drum further includes a foundation ring beam 3; the foundation ring beam 3 is sleeved on the foundation main body 1, and the foundation ring beam 3 is connected with the other end of the foundation cantilever beam 2.
In some preferred embodiments of the present invention, the self-balancing wind power tower drum with inclined guy cables outside the drum further includes a foundation side plate 9, the foundation side plate 9 is disposed along the foundation ring beam 3, and the foundation side plate 9 is connected to the foundation bottom plate 8. In this way, a concrete bottom plate is arranged in the annular region from the foundation body 1 to the end portion of the cantilever beam, and circular side walls with the thickness of about 50cm are arranged at the end portion of the cantilever beam to connect the cantilever beams in series, and simultaneously, the concrete bottom plate plays a role in retaining soil.
In some preferred embodiments of the present invention, the self-balancing wind power tower drum with inclined guy cables outside the drum further includes a soil layer 10, a cavity is defined by the foundation side plate 9, the foundation cantilever beam 2, the foundation bottom plate 8 and the foundation main body 1, and the soil layer 10 is disposed in the cavity. Therefore, after all foundation structures are constructed, natural soil is adopted for backfilling balance weight in the annular cavity area from the foundation main body 1 to the end part of the cantilever beam, and the integral anti-overturning capacity of the foundation can be effectively improved.
In some preferred embodiments of the present invention, the horizontal section of the foundation body 1 has a circular structure or a polygonal shape, and the radius of the horizontal section of the foundation body 1 is 8 to 20m. Further, the horizontal sectional radius of the base body 1 is 15m.
In some preferred embodiments of the present invention, the vertical height of the foundation cantilever beam 2 is gradually reduced toward a direction away from the foundation main body 1. Therefore, the foundation cantilever beam 2 has engineering economy while reducing the downward excavation depth of the foundation by adopting a variable cross section form.
In some preferred embodiments of the present invention, each of the foundation cantilever beams 2 has a length of 10 to 35m. Further, each of the base cantilever beams 2 has a length of 20m.
In some preferred embodiments of the present invention, the radius of the foundation ring beam 3 is 10 to 35m. Further, the radius of the foundation ring beam 3 is 25m.
Further, the horizontal section of the base body 1 may be irregular. And the tower drum structure 4 is formed by sequentially splicing a plurality of sections of steel drums. After the lower steel cylinder part of the tower cylinder structure 4 adopts the design scheme of the invention, the lower steel cylinder part can be designed by adopting concrete materials and steel materials according to the actual engineering requirements and the construction conditions of on-site transportation, hoisting and the like, and the lower steel cylinder part has stronger flexibility compared with the traditional design scheme.
The preferred embodiment of the invention also discloses a construction method of the external inclined stay cable type self-balancing wind power tower barrel, which comprises the following steps:
s1, excavating a foundation soil body;
s2, arranging a structural template and required steel bar members, embedding the required members of the anchoring end of the prestressed inhaul cable, and presetting a pipeline so as to arrange the prestressed inhaul cable in the foundation;
s3, pouring concrete of the foundation main body 1;
s4, tensioning the prestressed stay cables in the foundation main body 1 and the foundation cantilever beam 2 by adopting a post-tensioning method;
s5, hoisting and fixing all steel cylinders below the tower cylinder elevation of the conversion section in batches on site according to the cylinder sections;
s6, hoisting and fixing the steel cylinder conversion section;
s7, mounting an anchorage device required by fixing the stay cable on the conversion section;
s8, arranging a stay cable and tensioning the stay cable to a specified prestress;
s9, hoisting and fixing tower barrel sections in batches within the range above the tower barrel conversion section;
and S10, finally, installing wind power generation equipment at the top of the tower.
The preferred embodiment of the invention provides an external inclined stay cable type self-balancing wind power tower cylinder, which is compared with the prior art:
the cylinder outer oblique stay cable type self-balancing wind power tower cylinder is provided with a foundation main body 1, the gravity of the foundation main body 1 provides a stable gravity center for the whole structure, meanwhile, a foundation cantilever beam 2 and a foundation ring beam 3 are arranged, and a first stay cable 5, a second stay cable 6 and a third stay cable 7 are respectively arranged on the foundation cantilever beam 2 and a cylinder building structure to form a self-balancing integral system, so that the whole body has good integrity and anti-overturning capacity, and concrete structure cracking is avoided; the self-balancing wind power tower cylinder with the inclined guy cables outside the cylinder has clear stress and definite force transmission path, can effectively reduce and merge the thickness and the diameter of the cylinder wall of each cylinder section at the bottom of the tower cylinder structure 4 so as to improve the operability of field hoisting and component transportation, and has less field construction steps and good structural integrity.
In addition, a third inhaul cable 7 outside the tower cylinder is arranged and connected with a second inhaul cable 6, and pretension stress is applied to the first inhaul cable 5, so that the stress value of the cylinder wall can be reduced while the bottom overturning moment of the high-rise wind power tower cylinder structure 4 can be better overcome. Thereby reduce the required diameter of 4 section of thick bamboo walls of wind power tower cylinder structure and wall thickness, compare traditional structure construction more portably, more have engineering economy nature.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a self-balancing wind power tower cylinder of oblique cable formula outside section of thick bamboo which characterized in that includes:
a base body (1);
the foundation structure comprises a plurality of groups of foundation cantilever beams (2), wherein each group of foundation cantilever beams (2) comprises a plurality of foundation cantilever beams, and the foundation cantilever beams (2) are sequentially arranged along the circumference of a foundation main body;
a tower structure (4), the tower structure (4) being arranged at the foundation main body;
the first guy cable (5) is arranged along the bottom surface of the foundation cantilever beam (2), one end of the first guy cable (5) is connected with the foundation main body, and the other end of the first guy cable is connected with the foundation cantilever beam;
the second guy cable (6) is arranged along the top surface of the foundation cantilever beam (2), one end of the second guy cable is connected with the foundation main body, and the other end of the second guy cable is connected with the foundation cantilever beam;
and one end of each third stay cable (7) is connected with the tower drum structure (4), and the other end of each third stay cable (7) is connected with the foundation cantilever beam.
2. The externally canted cable self-balancing wind tower as claimed in claim 1, wherein: the self-balancing wind power tower cylinder with the inclined guy cable outside the cylinder further comprises a foundation ring beam; the foundation ring beam (3) is sleeved on the foundation main body (1), and the foundation ring beam (3) is connected with the other end of the foundation cantilever beam (2).
3. The externally canted cable self-balancing wind tower as claimed in claim 2, wherein: the outer oblique stay cable type self-balancing wind power tower further comprises a foundation slab (8), and the foundation slab (8) is connected with the foundation main body (1) and the foundation cantilever beam respectively.
4. The externally canted cable self-balancing wind tower as claimed in claim 3, wherein: the self-balancing wind power tower cylinder with the inclined guy cable type outside the cylinder further comprises a foundation side plate (9), the foundation side plate (9) is arranged along the foundation ring beam (3), and the foundation side plate (9) is connected with the foundation bottom plate (8).
5. The externally canted cable self-balancing wind tower as claimed in claim 3, wherein: the self-balancing wind power tower cylinder with the inclined guy cable outside the cylinder further comprises a soil layer (10), a cavity is formed by the foundation side plate (9), the foundation cantilever beam (2), the foundation bottom plate (8) and the foundation main body (1) in a surrounding mode, and the soil layer (10) is arranged in the cavity.
6. The externally canted cable self-balancing wind tower as claimed in claim 1, wherein: the horizontal section of the basic main body (1) is in a circular structure or a polygon, and the radius of the horizontal section of the basic main body (1) is 8-20 m.
7. The externally canted cable self-balancing wind tower as claimed in claim 5, wherein: the length of each basic cantilever beam (2) is 10-35 m.
8. The externally canted cable self-balancing wind tower as claimed in claim 1, wherein: the radius of the foundation ring beam (3) is 10-35 m.
9. The construction method of the wind power building drum according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
s1, excavating a foundation soil body;
s2, arranging a structural template and required steel bar members, embedding the required members of the anchoring end of the prestressed inhaul cable, and presetting a pipeline so as to arrange the prestressed inhaul cable in the foundation;
s3, pouring concrete of the foundation main body (1);
s4, tensioning the prestressed stay cables in the foundation main body (1) and the foundation cantilever beam (2) by adopting a post-tensioning method;
s5, hoisting and fixing all steel cylinders below the tower cylinder elevation of the conversion section in batches on site according to the cylinder sections;
s6, hoisting and fixing the steel cylinder conversion section;
s7, mounting an anchorage device required by fixing the stay cable on the conversion section;
s8, arranging a stay cable and tensioning the stay cable to a specified prestress;
s9, hoisting and fixing tower barrel sections in batches within the range above the tower barrel conversion section;
and S10, finally, installing wind power generation equipment at the top of the tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310086099.0A CN115929559A (en) | 2023-01-17 | 2023-01-17 | External inclined stay cable type self-balancing wind power tower drum and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310086099.0A CN115929559A (en) | 2023-01-17 | 2023-01-17 | External inclined stay cable type self-balancing wind power tower drum and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115929559A true CN115929559A (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310086099.0A Pending CN115929559A (en) | 2023-01-17 | 2023-01-17 | External inclined stay cable type self-balancing wind power tower drum and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115929559A (en) |
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2023
- 2023-01-17 CN CN202310086099.0A patent/CN115929559A/en active Pending
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