Shear-resistant multi-anchor ring system for wind power hybrid tower cylinder transition section and wind power hybrid tower cylinder

Abstract

The application belongs to the technical field of tower drums, and discloses a wind power hybrid tower drum conversion section shear-resistant multi-anchor ring system and a wind power hybrid tower drum. The multi-anchor ring system comprises a first anchor ring, a second anchor ring, a third anchor ring and a plurality of steel sleeves. The first anchor ring is fixed on the top surface of the conversion section of the wind power hybrid tower drum. The second anchor ring and the third anchor ring are pre-buried in the interior of the conversion section. The steel sleeves are used for penetrating prestressed tendons. The multi-anchor ring system forms a space constraint frame with fixed anchor bolts through three layers of anchor rings, forms multi-layer constraints on the concrete of the conversion section, and classifies and transmits horizontal shear force and overturning load, so that the stress distribution of the conversion section node is improved, the conversion section slip and concrete cracking are inhibited, and the overall shear bearing capacity and operation reliability of the steel-concrete conversion node are improved.

Description

Technical Field

[0001] This invention relates to the field of tower technology, and in particular to a shear-resistant multi-anchor ring system for the conversion section of a wind power hybrid tower and a wind power hybrid tower. Background Technology

[0002] In steel-concrete composite towers, a transfer section is usually set between the upper steel tower and the lower concrete tower to anchor and transfer forces. However, the existing transfer section structure cannot effectively transfer horizontal shear force and overturning load. Uneven stress distribution at the joints of the transfer section can lead to slippage of the transfer section over a long period of time, and may even cause concrete cracking. Summary of the Invention

[0003] The first objective of this invention is to provide a shear-resistant multi-anchor ring system for the transition section of a wind power hybrid tower. This multi-anchor ring system forms a spatial constraint frame through three layers of anchor rings and fixed anchor bolts, thereby creating multi-layer constraints on the concrete of the transition section, transferring horizontal shear force and overturning load in stages, improving the stress distribution at the transition section nodes, suppressing slippage and concrete cracking in the transition section, and enhancing the overall shear bearing capacity and operational reliability of the steel-concrete transition node.

[0004] The second objective of this invention is to provide a wind power hybrid sleeve, wherein the transition section of the wind power hybrid sleeve has multi-layer constraints, realizing the graded transmission of horizontal shear force and overturning load, improving the stress distribution at the nodes of the transition section, suppressing slippage and concrete cracking of the transition section, and enhancing the overall shear bearing capacity and operational reliability of the steel-concrete transition node.

[0005] To achieve this objective, the present invention adopts the following technical solution: This invention discloses a shear-resistant multi-anchor ring system for the transition section of a wind turbine hybrid tower, comprising: a first anchor ring having a plurality of first sleeve holes and a plurality of first anchor bolt holes spaced apart circumferentially thereon, the first anchor bolt holes being located radially inner to the first sleeve holes; the first anchor ring being fixed to the top surface of the transition section of the wind turbine hybrid tower; a second anchor ring located axially below the first anchor ring and pre-embedded inside the transition section, the second anchor ring having a plurality of second sleeve holes and a plurality of second anchor bolt holes spaced apart circumferentially thereon; and a third anchor ring located axially below the second anchor ring. Downward and embedded inside the transition section, the third anchor ring is provided with a plurality of third sleeve holes spaced apart along its circumference; a plurality of steel sleeves, the steel sleeves passing sequentially through the first sleeve hole, the second sleeve hole and the third sleeve hole, and fixedly connected to the first anchor ring, the second anchor ring and the third anchor ring, the steel sleeves being used to insert prestressing tendons, wherein: a plurality of second anchor bolt holes are provided in a one-to-one correspondence with a plurality of first anchor bolt holes, and the first anchor ring and the second anchor ring are fixedly connected to the bottom flange of the steel cylinder of the wind power hybrid tower by first fixing anchor bolts passing through the second anchor bolt holes and the first anchor bolt holes.

[0006] In some embodiments, the first anchor ring is a single circular ring or the first anchor ring includes a plurality of first arc-shaped pieces, which are sequentially welded to form a circular ring structure; The second anchor ring is a single circular ring or the second anchor ring comprises multiple second arc-shaped pieces, which are sequentially welded to form a circular ring structure; The third anchor ring is either a single circular ring or comprises multiple third arc-shaped pieces, which are sequentially welded together to form a circular ring structure.

[0007] In some specific embodiments, the entire circular ring is a steel ring, and the first arc-shaped piece, the second arc-shaped piece, and the third arc-shaped piece are all steel sheets.

[0008] In some embodiments, the steel sleeve is welded to or mechanically fixed to the first anchor ring; the steel sleeve is welded to or mechanically fixed to the second anchor ring; and the steel sleeve is welded to or mechanically fixed to the third anchor ring.

[0009] In some embodiments, the second anchor ring is further provided with a plurality of flow holes spaced apart along its circumference, and the second sleeve hole and the second anchor bolt hole are respectively located on the radial sides of the flow holes.

[0010] In some embodiments, the first anchor ring is provided with a plurality of third anchor bolt holes spaced apart circumferentially thereon, each third anchor bolt hole being located between two adjacent first sleeve holes; the second anchor ring is provided with a plurality of fourth anchor bolt holes spaced apart circumferentially thereon, each fourth anchor bolt hole being located between two adjacent second sleeve holes; a second fixing anchor bolt is provided through the steel cylinder bottom flange, the third anchor bolt holes and the fourth anchor bolt holes to fix the first anchor ring and the second anchor ring to the steel cylinder bottom flange.

[0011] In some specific embodiments, the first fixed anchor bolt and the second fixed anchor bolt have the same structure, and both include two fixing nuts and a fixing bolt. The two fixing nuts are respectively connected to the two ends of the fixing bolt and respectively abut against the second anchor ring and the bottom flange of the steel cylinder.

[0012] The present invention also discloses a wind power hybrid tower, comprising a wind turbine, a steel cylinder, a steel cylinder bottom flange, a concrete cylinder, and a tower foundation arranged sequentially from top to bottom. The concrete cylinder includes a transition section and a straight section. The shear-resistant multi-anchor ring system of the wind power hybrid tower transition section described above is installed in the transition section and connected to the steel cylinder bottom flange. The steel cylinder bottom flange is provided with multiple through holes for passing through prestressed tendons.

[0013] In some embodiments, the bottom flange of the steel cylinder includes a connecting cylinder and a flange seat. The connecting cylinder is connected to the steel cylinder, and the flange seat abuts against the first anchor ring. The flange seat is provided with a plurality of fifth anchor bolt holes and a plurality of sixth anchor bolt holes, which are located on the radial sides of the connecting cylinder.

[0014] In some specific embodiments, the flange seat includes a first ring plate, a second ring plate, and a plurality of axial fixing plates. The two ends of the axial fixing plates are respectively connected to the first ring plate and the second ring plate, and the plurality of axial fixing plates are arranged at intervals along the circumference of the flange seat.

[0015] The beneficial effects of this invention are as follows: In the actual construction process, the first fixed anchor bolt is passed through the second anchor bolt hole and the first anchor bolt hole in sequence. Then, the multi-anchor ring system is placed in the mold and concrete is poured, so that the second and third anchor rings are pre-embedded in the concrete of the transition section. Then, the bottom flange of the steel cylinder is placed on top of the first anchor ring, and the multi-anchor ring system is fixed to the bottom flange of the steel cylinder using the first fixed anchor bolt. The three layers of anchor rings and the first fixed anchor bolt form a spatial constraint frame, which forms a multi-layer constraint on the concrete of the transition section, and transfers the horizontal shear force and overturning load in stages, improves the stress distribution of the transition section nodes, inhibits the slippage and concrete cracking of the transition section, and improves the overall shear bearing capacity and operational reliability of the steel-concrete transition node. The three layers of anchor rings work together to bear the overturning moment and horizontal shear force, avoiding the load concentration on a single anchor ring, and improving the fatigue resistance of the node under high-megawatt conditions.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the shear-resistant multi-anchor ring system of the wind power hybrid tower conversion section according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the first anchor ring, the second anchor ring, and the third anchor ring according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the fixed anchor bolt according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the wind power hybrid tower according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the conversion segment according to an embodiment of the present invention; Figure 6 This is a cross-sectional schematic diagram of the conversion segment according to an embodiment of the present invention; Figure 7 This is a top view of the transition section in an embodiment of the present invention; Figure 8 This is a schematic diagram of the steel cylinder bottom flange according to an embodiment of the present invention.

[0018] Figure label: 100. First anchor ring; 101. First sleeve hole; 102. First anchor bolt hole; 103. Third anchor bolt hole; 200. Second anchor ring; 201. Second sleeve hole; 202. Second anchor bolt hole; 203. Flow hole; 204. Fourth anchor bolt hole; 300. Third anchor ring; 301. Third sleeve hole; 400. Steel sleeve; 500. First fixed anchor bolt; 501. Fixed bolt; 502. Fixed nut; 600. Second fixed anchor bolt; 10. Fan; 20. Steel cylinder; 30. Steel cylinder bottom flange; 31. Connecting cylinder; 32. Flange seat; 321. First ring plate; 322. Second ring plate; 323. Axial fixing plate; 3201. Fifth anchor bolt hole; 3202. Sixth anchor bolt hole; 3203. Perforation; 40. Concrete cylinder; 41. Transfer section; 42. Straight cylinder section; 50. Tower foundation; 60. Prestressed tendons. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0020] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0022] This invention discloses a shear-resistant multi-anchor ring system for the transition section of a wind turbine hybrid tower (hereinafter referred to as the multi-anchor ring system for ease of description), referenced Figures 1-3As shown, the multi-anchor ring system includes a first anchor ring 100, a second anchor ring 200, a third anchor ring 300, and multiple steel sleeves 400. The first anchor ring 100 has multiple first sleeve holes 101 and multiple first anchor bolt holes 102 distributed circumferentially thereon. The first anchor bolt holes 102 are located radially inside the first sleeve holes 101. The first anchor ring 100 is fixed to the top surface of the transition section 41 of the wind turbine hybrid tower. The second anchor ring 200 is located axially below the first anchor ring 100 and is embedded inside the transition section 41. The second anchor ring 200 has multiple second sleeve holes 201 and multiple second anchor bolt holes 202 distributed circumferentially thereon. The third anchor ring 300 is located below the second anchor ring 200. Below the axial direction of 0 and embedded inside the transition section 41, the third anchor ring 300 is provided with a plurality of third sleeve holes 301 distributed circumferentially. The steel sleeve 400 passes through the first sleeve hole 101, the second sleeve hole 201 and the third sleeve hole 301 in sequence, and is fixedly connected to the first anchor ring 100, the second anchor ring 200 and the third anchor ring 300. The steel sleeve 400 is used to install the prestressing tendon 60. A plurality of second anchor bolt holes 202 are set one-to-one with a plurality of first anchor bolt holes 102. The first anchor ring 100 and the second anchor ring 200 are fixedly connected to the bottom flange 30 of the steel cylinder of the wind power hybrid tower by first fixed anchor bolts 500 passing through the second anchor bolt holes 202 and the first anchor bolt holes 102. Understandably, during actual construction, the first fixed anchor bolt 500 is passed sequentially through the second anchor bolt hole 202 and the first anchor bolt hole 102. Then, the multi-anchor ring system is placed in the mold and concrete is poured, so that the second anchor ring 200 and the third anchor ring 300 are pre-embedded in the concrete of the transition section 41. Then, the steel cylinder bottom flange 30 is placed above the first anchor ring 100, and the multi-anchor ring system is fixed to the steel cylinder bottom flange 30 using the first fixed anchor bolt 500. The three layers of anchor rings and the first fixed anchor bolt 500 form a spatial constraint frame, which forms multi-layer constraints on the concrete of the transition section 41, and transfers horizontal shear force and overturning load in stages. This improves the stress distribution at the nodes of the transition section 41, inhibits slippage and concrete cracking in the transition section 41, and enhances the overall shear bearing capacity and operational reliability of the steel-concrete transition node. The three layers of anchor rings work together to bear the overturning moment and horizontal shear force, avoiding load concentration on a single anchor ring and improving the fatigue resistance of the node under high-megawatt conditions.

[0023] In some embodiments, the first anchor ring 100 is a single circular ring; or, the first anchor ring 100 includes a plurality of first arc-shaped pieces, which are sequentially welded to form a circular ring structure. It is understood that in actual operation, a suitable first anchor ring 100 can be selected based on the environment. For ease of transportation, a first anchor ring 100 composed of multiple first arc-shaped pieces can be used; to reduce on-site operational intensity, a single circular ring can be used.

[0024] In some embodiments, the second anchor ring 200 is a single circular ring; or, the second anchor ring 200 includes multiple second arc-shaped pieces, which are sequentially welded to form a circular ring structure. It is understood that in actual operation, a suitable second anchor ring 200 can be selected based on the environment. For ease of transportation, a second anchor ring 200 composed of multiple second arc-shaped pieces can be used; to reduce on-site operational intensity, a second anchor ring 200 consisting of a single circular ring can be used.

[0025] In some embodiments, the third anchor ring 300 is a single circular ring; or, the third anchor ring 300 includes multiple third arc-shaped pieces, which are sequentially welded to form a circular ring structure. It is understood that in actual operation, a suitable third anchor ring 300 can be selected based on the environment. For ease of transportation, a third anchor ring 300 composed of multiple third arc-shaped pieces can be used; to reduce on-site operational intensity, a third anchor ring 300 consisting of a single circular ring can be used.

[0026] In some specific embodiments, the entire circular ring is a steel ring, and the first, second, and third arc-shaped pieces are all steel sheets. It is understood that using steel to manufacture the first anchor ring 100, second anchor ring 200, and third anchor ring 300 ensures the strength of the multi-anchor ring system and facilitates anchoring concrete.

[0027] In some embodiments, the steel sleeve 400 is welded to the first anchor ring 100 or mechanically fixed. The mechanical fixed connection can be achieved by connecting with screws or other fasteners, or by using a snap-fit ​​structure. In actual operation, the connection method between the steel sleeve 400 and the first anchor ring 100 can be selected according to actual needs.

[0028] In some embodiments, the steel sleeve 400 is welded to the second anchor ring 200 or mechanically fixed. The mechanical fixed connection can be achieved by using screws or other connecting parts, or by using a snap-fit ​​structure. In actual operation, the connection method of the steel sleeve 400 and the second anchor ring 200 can be selected according to actual needs.

[0029] In some embodiments, the steel sleeve 400 is welded to the third anchor ring 300 or mechanically fixed. The mechanical fixed connection can be achieved by connecting with screws or other fasteners, or by using a snap-fit ​​structure. In actual operation, the connection method of the steel sleeve 400 and the second anchor ring 200 can be selected according to actual needs.

[0030] In some embodiments, the second anchor ring 200 is further provided with a plurality of flow holes 203 spaced apart along its circumference, and the second sleeve hole 201 and the second anchor bolt hole 202 are respectively located on both radial sides of the flow holes 203. It is understood that the function of the flow holes 203 is to allow the vertical reinforcing bars of the embedded steel mesh and the poured concrete to pass through, forming a through-hole, thereby ensuring the connection strength between the second anchor ring 200 and the third anchor ring 300 and the concrete. In embodiments of the present invention, the size, number, and shape of the flow holes 203 can be selected according to actual needs.

[0031] In some embodiments, the first anchor ring 100 is provided with a plurality of third anchor bolt holes 103 spaced apart circumferentially thereon, each third anchor bolt hole 103 being located between two adjacent first sleeve holes 101; the second anchor ring 200 is provided with a plurality of fourth anchor bolt holes 204 spaced apart circumferentially thereon, each fourth anchor bolt hole 204 being located between two adjacent second sleeve holes 201; a second fixing anchor bolt 600 is provided through the steel cylinder bottom flange 30, the third anchor bolt holes 103 and the fourth anchor bolt holes 204 to fix the first anchor ring 100 and the second anchor ring 200 to the steel cylinder bottom flange 30. It can be understood that the first anchor ring 100 and the second anchor ring 200 are fixed by the first fixing anchor bolt 500 on the radially inner side and the second fixing anchor bolt 600 on the radially outer side, which can both ensure the firmness of the connection between the first anchor ring 100, the second anchor ring 200 and the steel cylinder bottom flange 30, and also fix the flange to the top of the transition section 41.

[0032] In some specific embodiments, the first fixed anchor bolt 500 and the second fixed anchor bolt 600 have the same structure, and both include two fixing nuts 502 and fixing bolts 501. The two fixing nuts 502 are respectively connected to the two ends of the fixing bolts 501, and respectively abut against the second anchor ring 200 and the bottom flange of the steel cylinder 30. Understandably, during the actual installation of the first fixed anchor bolt 500, the fixing bolt 501 is passed through the second anchor bolt hole 202 and the first anchor bolt hole 102. Then, a fixing nut 502 is connected to the fixing bolt 501 and abuts against the second anchor ring 200. The installation of the second fixed anchor bolt 600 is the same as that of the first fixed anchor bolt 500. Then, the multi-anchor ring system is placed into the concrete mold for casting. After casting, the bottom flange 30 of the steel cylinder is inserted into the fixing bolt 501. Another fixing nut 502 is installed on the fixing bolt 501 and abuts against the bottom flange 30 of the steel cylinder, thus completing the connection. This ensures the firmness of the connection between the first anchor ring 100, the second anchor ring 200 and the bottom flange 30 of the steel cylinder, and also fixes the bottom flange 30 of the steel cylinder to the top of the transition section 41.

[0033] The advantages of this multiple anchor ring system are as follows: First, a three-dimensional arrangement of triple anchor rings is used to form a spatial constraint frame, which forms multi-layer constraints on the concrete of the transfer section 41, realizes the graded transfer of shear force, effectively improves the shear bearing capacity of the steel-concrete transfer node, and reduces the risk of node slippage failure. Second, the triple anchor rings work together to bear the overturning moment and horizontal shear force, avoiding the load concentration on a single anchor ring and improving the fatigue resistance of the node under high-megawatt conditions. Third, avoid stress concentration, achieve graded shear force transfer, improve concrete stress distribution, and reduce cracking of concrete in transfer section 41. Fourth, it has a high degree of structural integration and can be prefabricated in the factory, which facilitates the overall casting of the mixed tower conversion section 41. The construction and assembly are convenient and it can be used as a positioner for the installation of prestressed tendons 60, thereby improving the accuracy of subsequent construction.

[0034] This invention also discloses a wind power hybrid tower, with reference to Figures 4-7 As shown, the wind turbine hybrid tower includes, from top to bottom, a wind turbine 10, a steel cylinder 20, a steel cylinder bottom flange 30, a concrete cylinder 40, and a tower foundation 50. The concrete cylinder 40 includes a transition section 41 and a straight section 42. A multi-anchor ring system is installed on the transition section 41 and connected to the steel cylinder bottom flange 30. The steel cylinder bottom flange 30 has multiple through holes 3203 for passing through prestressed tendons 60. Due to the aforementioned multi-anchor ring system, the transition section 41 of this wind turbine hybrid tower has multi-layer constraints, realizing the graded transfer of horizontal shear force and overturning load, improving the nodal stress distribution of the transition section 41, suppressing slippage and concrete cracking of the transition section 41, and enhancing the overall shear bearing capacity and operational reliability of the steel-concrete transition node.

[0035] Optionally, the prestressed tendon 60 is anchored to the upper end face of the bottom flange 30 of the steel cylinder, passes through the perforation 3203 and through the inside of the steel sleeve 400, and enters the interior of the concrete tower. The other end is anchored to the tower foundation 50. Its function is to apply prestress to the concrete tower to counteract the bending tensile stress generated by the operating wind load.

[0036] In some embodiments, such as Figure 8 As shown, the bottom flange 30 of the steel cylinder includes a connecting cylinder 31 and a flange seat 32. The connecting cylinder 31 is connected to the steel cylinder 20, and the flange seat 32 abuts against the first anchor ring 100. The flange seat 32 is provided with a plurality of fifth anchor bolt holes 3201 and a plurality of sixth anchor bolt holes 3202, which are located on both radial sides of the connecting cylinder 31. It can be understood that the connecting cylinder 31 is convenient for welding to the steel cylinder 20. The fifth anchor bolt holes 3201 are correspondingly connected to the first anchor bolt holes 102 and the second anchor bolt holes 202, and are used to install the first fixed anchor bolt 500. The sixth anchor bolt holes 3202 are correspondingly connected to the third anchor bolt holes 103 and the fourth anchor bolt holes 204, and are used to install the second fixed anchor bolt 600.

[0037] In some specific embodiments, the flange seat 32 includes a first ring plate 321, a second ring plate 322, and a plurality of axial fixing plates 323. The two ends of each axial fixing plate 323 are connected to the first ring plate 321 and the second ring plate 322, respectively. The plurality of axial fixing plates 323 are spaced apart circumferentially along the flange seat 32. The first ring plate 321 can be stably welded to the connecting cylinder 31, the second ring plate 322 can stably abut against the first anchor ring 100, and the axial fixing plates 323 can enhance the structural strength of the flange seat 32 itself.

[0038] In some more specific embodiments, the two ends of the axial fixing plate 323 are welded to the first ring plate 321 and the second ring plate 322, respectively. This improves the structural strength of the flange seat 32 itself.

[0039] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A shear-resistant multi-anchor ring system for the transition section of a wind turbine hybrid tower, characterized in that, include: The first anchor ring (100) is provided with a plurality of first sleeve holes (101) and a plurality of first anchor bolt holes (102) distributed circumferentially thereon. The first anchor bolt holes (102) are located on the radial inner side of the first sleeve holes (101). The first anchor ring (100) is fixed on the top surface of the conversion section (41) of the wind power hybrid tower. The second anchor ring (200) is located axially below the first anchor ring (100) and is embedded inside the transition section (41). The second anchor ring (200) is provided with a plurality of second sleeve holes (201) and a plurality of second anchor bolt holes (202) distributed circumferentially. The third anchor ring (300) is located axially below the second anchor ring (200) and is embedded inside the transition section (41). The third anchor ring (300) is provided with a plurality of third sleeve holes (301) spaced apart along its circumference. Multiple steel sleeves (400) are provided, each sleeve passing sequentially through a first sleeve hole (101), a second sleeve hole (201), and a third sleeve hole (301), and fixedly connected to the first anchor ring (100), the second anchor ring (200), and the third anchor ring (300). The steel sleeves (400) are used to insert prestressed tendons (60), wherein: Multiple second anchor bolt holes (202) are provided one-to-one with multiple first anchor bolt holes (102). The first anchor ring (100) and the second anchor ring (200) are fixedly connected to the bottom flange (30) of the steel cylinder of the wind power hybrid tower by a first fixed anchor bolt (500) passing through the second anchor bolt hole (202) and the first anchor bolt hole (102).

2. The shear-resistant multi-anchor ring system for the transition section of a wind power hybrid tower according to claim 1, characterized in that, The first anchor ring (100) is a whole circular ring or the first anchor ring (100) includes multiple first arc-shaped pieces, and the multiple first arc-shaped pieces are welded in sequence to form a circular ring structure; The second anchor ring (200) is a whole circular ring or the second anchor ring (200) includes multiple second arc-shaped pieces, which are welded together in sequence to form a circular ring structure; The third anchor ring (300) is a whole circular ring or the third anchor ring (300) includes multiple third arc-shaped pieces, and the multiple third arc-shaped pieces are welded in sequence to form a circular ring structure.

3. The shear-resistant multi-anchor ring system for the transition section of a wind power hybrid tower according to claim 2, characterized in that, The entire circular ring is a steel ring, and the first arc-shaped piece, the second arc-shaped piece, and the third arc-shaped piece are all steel sheets.

4. The shear-resistant multi-anchor ring system for the transition section of a wind power hybrid tower according to claim 1, characterized in that, The steel sleeve (400) is welded to the first anchor ring (100) or mechanically fixed. The steel sleeve (400) is welded to the second anchor ring (200) or mechanically fixed. The steel sleeve (400) is welded to the third anchor ring (300) or mechanically fixed.

5. The shear-resistant multi-anchor ring system for the transition section of a wind power hybrid tower according to claim 1, characterized in that, The second anchor ring (200) is also provided with a plurality of flow holes (203) spaced apart along its circumference, and the second sleeve hole (201) and the second anchor bolt hole (202) are respectively located on the radial sides of the flow holes (203).

6. The shear-resistant multi-anchor ring system for the transition section of a wind power hybrid tower according to claim 1, characterized in that, The first anchor ring (100) is provided with a plurality of third anchor bolt holes (103) spaced apart along its circumference, and each of the third anchor bolt holes (103) is located between two adjacent first sleeve holes (101); The second anchor ring (200) is provided with a plurality of fourth anchor bolt holes (204) spaced apart along its circumference, and each of the fourth anchor bolt holes (204) is located between two adjacent second sleeve holes (201); The second anchor bolt (600) is disposed through the bottom flange (30) of the steel cylinder, the third anchor bolt hole (103) and the fourth anchor bolt hole (204) to fix the first anchor ring (100) and the second anchor ring (200) to the bottom flange (30).

7. The shear-resistant multi-anchor ring system for the transition section of a wind power hybrid tower according to claim 6, characterized in that, The first fixed anchor (500) and the second fixed anchor (600) have the same structure, and each includes two fixing nuts (502) and a fixing bolt (501). The two fixing nuts (502) are respectively connected to the two ends of the fixing bolt (501) and respectively abut against the second anchor ring (200) and the bottom flange of the steel cylinder (30).

8. A wind power hybrid tower, characterized in that, The structure includes, from top to bottom, a wind turbine (10), a steel cylinder (20), a steel cylinder bottom flange (30), a concrete cylinder (40), and a tower foundation (50). The concrete cylinder (40) includes a transition section (41) and a straight section (42). The wind power hybrid tower transition section shear-resistant multi-anchor ring system as described in any one of claims 1-7 is installed on the transition section (41) and connected to the steel cylinder bottom flange (30). The steel cylinder bottom flange (30) is provided with a plurality of through holes (3203), which are used to pass through prestressed tendons (60).

9. The wind power hybrid tower according to claim 8, characterized in that, The bottom flange (30) of the steel cylinder includes a connecting cylinder (31) and a flange seat (32). The connecting cylinder (31) is connected to the steel cylinder (20). The flange seat (32) abuts against the first anchor ring (100). The flange seat (32) is provided with a plurality of fifth anchor bolt holes (3201) and a plurality of sixth anchor bolt holes (3202). The fifth anchor bolt holes (3201) and the sixth anchor bolt holes (3202) are located on the radial sides of the connecting cylinder (31).

10. The wind power hybrid tower according to claim 9, characterized in that, The flange seat (32) includes a first ring plate (321), a second ring plate (322) and a plurality of axial fixing plates (323). The two ends of the axial fixing plates (323) are respectively connected to the first ring plate (321) and the second ring plate (322), and the plurality of axial fixing plates (323) are arranged at intervals along the circumference of the flange seat (32).

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