Wind power mixed tower

Abstract

The application belongs to the technical field of mixed towers, and discloses a wind power mixed tower, which comprises a tower drum and a prestress assembly, wherein the tower drum comprises a mounting portion; the prestress assembly comprises a plurality of groups of arc-shaped prestressed tendons, the plurality of groups of prestressed tendons are arranged along the height direction of the mounting portion, a plurality of tensioning openings are formed in the circumferential direction of the mounting portion, both ends of the prestressed tendons are arranged in the two tensioning openings respectively, and adjacent prestressed tendons are arranged in at least two directions of the height direction, the radial direction and the circumferential direction of the mounting portion. In this way, the prestressed tendons can apply a circumferential pre-compressive stress to the mounting portion, so as to offset the transverse expansion tensile stress generated in the wind power mixed tower during operation, and improve the structural rigidity, overall safety and stability and service durability of the wind power mixed tower.

Description

Technical Field

[0001] This invention relates to the field of hybrid tower technology, and more particularly to a wind power hybrid tower. Background Technology

[0002] Hybrid towers are a type of tower structure in wind power generation that combines steel and concrete. They are characterized by saving steel, good stability, good corrosion resistance, convenient construction, and high rigidity.

[0003] In related technologies, during the operation of wind turbine hybrid towers, when the towers are subjected to wind loads and undergo torsional or bending deformation, the concrete on the pressure side of the tower not only bears enormous vertical pressure, but also exhibits a circumferential lateral expansion tendency due to the Poisson effect. This circumferential tensile stress can easily cause longitudinal cracks in the inner and outer walls of the tower, damaging the structural integrity of the wind turbine hybrid tower. At the diameter-changing section of the tower, local stress concentration zones are more likely to form. In addition to the risk of cracking, these areas may also cause structural damage such as tower wall bulging and splitting, affecting the safe operation and service life of the wind turbine. Summary of the Invention

[0004] The purpose of this invention is to provide a wind power hybrid tower to solve the problem that wind power hybrid towers are prone to cracking and bulging under the action of wind load and local stress concentration areas.

[0005] To achieve this objective, the present invention adopts the following technical solution: A wind power hybrid tower includes: a tower section, the tower section including an installation section; a prestressing assembly, the prestressing assembly including multiple sets of arc-shaped prestressing tendons, the multiple sets of prestressing tendons being arranged along the height direction of the installation section, the installation section having multiple tensioning openings along the circumference, the two ends of each prestressing tendon being respectively disposed in two of the tensioning openings, and adjacent prestressing tendons being staggered along at least two of the height direction, radial direction, and circumferential direction of the installation section.

[0006] Preferably, along the height direction of the tower, the inner diameter of the end of the mounting part away from the ground is smaller than the inner diameter of the end facing the ground.

[0007] Preferably, the arc length of the prestressing tendon is greater than half the circumference of the mounting portion at its corresponding position.

[0008] Preferably, a group of prestressing tendons includes at least two layers of prestressing tendons, each layer of prestressing tendons includes at least two prestressing tendons, adjacent prestressing tendons are spaced apart, and within the same group of prestressing tendons, the distance between two adjacent layers of prestressing tendons is greater than or equal to 100mm.

[0009] Preferably, each group of prestressing tendons is provided with 4 prestressing tendons, each layer includes 2 prestressing tendons, and 8 tensioning openings are provided, which are circumferentially arranged at equal intervals on the inner wall of the installation part.

[0010] Preferably, in each layer of prestressed tendons, the prestressed tendon closest to the outer periphery of the mounting part is the outer ring, and the prestressed tendon closest to the center of the mounting part is the inner ring, and the difference between the radius of the outer ring and the radius of the inner ring is greater than or equal to 100mm.

[0011] Preferably, the prestressed tendon includes a first end and a second end, with the first end of the inner ring and the second end of the outer ring disposed in adjacent tensioning openings.

[0012] Preferably, the prestressed component further includes reinforcing bars disposed within the tensioning opening, the reinforcing bars extending along the extension direction of the tensioning opening.

[0013] Preferably, the end of the reinforcing bar is provided with a sleeve, and the tensioning opening is provided with a reserved joint that cooperates with the sleeve, so that the reinforcing bar can be connected to the mounting part.

[0014] Preferably, in the height direction of the mounting portion, a bracket is provided at a position where the projections of adjacent prestressing tendons intersect, so that adjacent prestressing tendons are spaced apart.

[0015] The beneficial effects of this invention are: The wind power hybrid tower provided by the present invention includes a tower cylinder and a prestressed component. The tower cylinder includes an installation section. The prestressed component includes multiple sets of arc-shaped prestressing tendons. The multiple sets of prestressing tendons are arranged along the height direction of the installation section. The installation section has multiple tensioning openings along the circumference. The two ends of the prestressing tendons are respectively set in two tensioning openings. Adjacent prestressing tendons are staggered along at least two of the height direction, radial direction, and circumferential direction of the installation section.

[0016] In this way, the arc-shaped prestressing tendons can apply circumferential prestress to the installation part, actively counteracting the lateral expansion tensile stress generated by the pressure during the operation of the wind turbine hybrid tower, avoiding longitudinal cracks, extrusion cracks, and bulging damage to the tower. The staggered arrangement of adjacent prestressing tendons can increase the arrangement density of prestressing tendons in the installation part, reduce stress gaps, and make the distribution of prestress on the tower wall interface more balanced, thereby improving the structural stiffness, overall safety stability, and service durability of the wind turbine hybrid tower. The tensioning openings facilitate the assembly and tensioning of prestressing tendons and provide ample construction space. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a wind power hybrid tower in one embodiment of the present invention; Figure 2 This is one embodiment of the present invention. Figure 1 Enlarged view of point A; Figure 3 This is a first partial sectional view of the tower in one embodiment of the present invention; Figure 4 This is a schematic diagram of the prestressed tendon structure in one embodiment of the present invention; Figure 5 This is a second partial sectional view of the tower in one embodiment of the present invention; Figure 6 This is a third partial sectional view of the tower in one embodiment of the present invention.

[0018] In the picture: 1. Tower; 11. Installation section; 111. Tensioning opening; 1111. Anchorage end; 2. Prestressed component; 21. Prestressed tendon; 211. Intersection point; 22. Reinforcing bar; 221. Sleeve. 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 this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, the terms "upper," "lower," "left," and "right," 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. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0023] See Figures 1 to 4 The present invention provides a wind power hybrid tower, comprising: a tower 1 and a prestressed assembly 2. The tower 1 includes an installation part 11; the prestressed assembly 2 includes multiple sets of arc-shaped prestressing tendons 21, which are arranged along the height direction of the installation part 11. The installation part 11 has multiple tensioning openings 111 in the circumferential direction. The two ends of the prestressing tendons 21 are respectively disposed in two tensioning openings 111. Adjacent prestressing tendons 21 are staggered in at least two of the height direction, radial direction, and circumferential direction of the installation part 11.

[0024] In this embodiment, the tower 1 is a vertically arranged hollow structure. The prestressed tendons 21 are embedded in the installation part 11 of the tower 1 before the concrete is poured. The tensioning is carried out after the wind power hybrid tower construction is completed. Each prestressed tendon 21 has two ends set in two tensioning openings 111. The tensioning openings 111 are provided with anchoring ends 1111 for anchoring the prestressed tendons 21. Adjacent prestressed tendons 21 are staggered in the height direction, radial direction and circumferential direction of the installation part 11. The projections of adjacent prestressed tendons 21 in the height direction of the installation part 11 are intersected.

[0025] Thus, the tensioning opening 111 can provide space for the subsequent tensioning of the prestressing tendons 21. After tensioning, the prestressing tendons 21 can constrain the installation part 11 and apply circumferential prestress to the installation part 11. It can also actively counteract the lateral expansion tensile stress generated by the pressure during the operation of the wind power hybrid tower, thus preventing longitudinal cracks, extrusion cracks, and bulging damage in the tower 1. Since the adjacent prestressing tendons 21 are staggered, the coverage area of ​​the prestressing tendons 21 in the installation part 11 can be wider, increasing the arrangement density of the prestressing tendons 21. This makes the distribution of prestress on the tower wall interface more balanced, thereby reducing local stress concentration areas and improving the structural stiffness, overall safety stability, and service durability of the wind power hybrid tower.

[0026] It is understandable that the prestressing tendon 21 can be a loosely bonded prestressed steel strand, or a steel strand installed by setting prefabricated ducts. The installation method of the prestressing tendon 21 can be adjusted according to actual needs, and will not be listed in detail here.

[0027] See Figure 5 and Figure 6In some embodiments, along the height direction of the tower 1, the inner diameter of the end of the mounting part 11 away from the ground is smaller than the inner diameter of the end facing the ground. In this embodiment, the upper half of the mounting part 11 is a variable diameter section, and the lower half is a constant diameter section. Along the direction away from the ground, the inner diameter of the variable diameter section gradually decreases. Multiple prestressing tendons 21 are longitudinally spaced within the mounting part 11. The extension direction of the tensioning opening 111 is parallel to the extension direction of the inner wall of the mounting part 11. That is, the tensioning opening 111 is inclined to the bottom wall of the variable diameter section and vertically arranged to correspond to the bottom wall of the constant diameter section.

[0028] Thus, by placing the prestressing tendon 21 at the diameter change position, radial prestress can be applied to areas prone to local stress concentration. This not only continuously counteracts the expansion tensile stress of the concrete on the compression side due to the Poisson effect at different height positions, but also counteracts local stress through the circumferential restraint of the prestressing tendon 21, applying the prestress to the weak area and preventing cracking, bulging, or damage at the diameter change position. The tensioning opening 111 is adapted to the diameter change section, ensuring a uniform depth of the tensioning opening 111 and preventing changes in the local structural strength of the installation part 11 due to depth variations. This allows the anchoring end 1111 to be stably placed in the tensioning opening 111, improving the tensioning effect of the prestressing tendon 21 and facilitating the sealing of the tensioning opening 111 by pouring concrete after tensioning.

[0029] See Figure 6 In some embodiments, the arc length of the prestressing tendon 21 is greater than half the circumference of the mounting portion 11 at its corresponding position. That is, each prestressing tendon 21 passes through more than half of the mounting portion 11.

[0030] In this embodiment, adjacent prestressing tendons 21 are anchored in different tensioning openings 111, forming a horizontally multi-layered three-dimensional arrangement structure, so that the installation part 11 has multiple prestressing tendons 21 in different positions in the radial direction, thereby increasing the arrangement density of prestressing tendons 21 and providing key compensation at stress concentration locations.

[0031] Thus, after the multiple prestressing tendons 21 are staggered, the projection of them in the height direction of the installation part 11 can reduce the overlapping area, so that the circumferential prestress is evenly distributed, reducing the local stress concentration area, improving the tower 1's resistance to wind loads from different directions, and avoiding the generation of longitudinal cracks. The two ends of the non-closed arc-shaped prestressing tendons 21 are respectively inserted into and anchored to the tensioning opening 111, which can actively apply the circumferential prestress through pre-embedded tensioning. The construction is simple and the tensioning efficiency is high. It reduces the assembly interference of the prestressing tendons 21 with other structures, which is conducive to arranging more prestressing tendons 21 in the installation part 11.

[0032] See Figure 4In some embodiments, a group of prestressing tendons 21 includes at least two layers of prestressing tendons 21, each layer of prestressing tendons 21 includes at least two prestressing tendons 21, adjacent prestressing tendons 21 are spaced apart, and within the same group of prestressing tendons 21, the distance between two adjacent layers of prestressing tendons 21 is greater than or equal to 100mm.

[0033] In this embodiment, a total of 8 sets of prestressing tendons 21 are provided. The two layers of prestressing tendons 21 are arranged in upper and lower layers. The prestressing tendons 21 in each layer are staggered, and the prestressing tendons 21 in each layer are arranged at equal intervals. The prestressing tendons 21 in multiple layers are arranged at equal intervals.

[0034] In this way, the multiple prestressing tendons 21 are staggered and distributed at intervals, which can make the prestressing tendons 21 evenly arranged, make the prestress distribution of the installation part 11 section more balanced, reduce local stress concentration areas and local stress gap areas, reduce the risk of cracking, improve the crack resistance and stiffness of the tower 1, avoid additional bending moment and local damage caused by prestressing offset, offset the circumferential tensile stress generated by the tower 1 under extreme wind load and long-term fatigue conditions, avoid concrete cracking and damage after local pressure, and improve the structural stiffness and safety of the wind power hybrid tower while controlling the amount of material used and realizing lightweight design, and extend the service life of the wind power hybrid tower.

[0035] It is understandable that the spacing between two adjacent layers of prestressing tendons 21 should not be too small. If it is too small, it will easily cause assembly interference between the prestressing tendons 21 and will not be conducive to the embedding and subsequent tensioning. The number of layers of prestressing tendons 21, the number of prestressing tendons 21 in each layer, and the spacing between two adjacent layers of prestressing tendons 21 can be adjusted according to actual needs, which will not be elaborated here.

[0036] See Figure 4 In some embodiments, each group of prestressing tendons 21 is provided with 4 prestressing tendons 21, each layer includes 2 prestressing tendons 21, and 8 tensioning openings 111 are provided, with the 8 tensioning openings 111 being circumferentially arranged at equal intervals on the inner wall of the installation part 11.

[0037] In this embodiment, each tensioning opening 111 corresponds to one end of the prestressing tendon 21. Of the two prestressing tendons 21 in each layer, one is closer to the outer periphery of the mounting part 11 and the other is closer to the center of the mounting part 11, so as to achieve staggered arrangement. Each group of prestressing tendons 21 is provided with two intersection points 211, and the two intersection points 211 are respectively located between the corresponding tensioning openings 111.

[0038] In this way, the anchoring ends 1111 on each tensioning opening 111 can be evenly distributed circumferentially, allowing the tensioning load to pass evenly into the cylinder wall through each tensioning opening 111. This avoids local stress concentration caused by anchoring concentrated in a few tensioning openings 111, and also allows the prestressing tendons 21 to be staggered and connected to adjacent prestressing tendons 21, reducing the stress gap area in the installation part 11. By applying circumferential prestress in layers, both the inner and outer walls of the installation part 11 can be prestressed and protected, preventing cracks. The number of intersection points 211 of each group of prestressing tendons 21 is small, which can reduce the interference and influence between prestressing tendons 21 and reduce the impact of prestressing tendon intersections on the circumferential prestress. This makes the circumferential prestress on the installation part 11 more balanced, reduces the risk of local damage, facilitates the anchoring of each prestressing tendon 21, and reduces construction difficulty.

[0039] It is understandable that the number of tensioning openings 111 can be adjusted according to the number of prestressing tendons 21, which will not be elaborated here.

[0040] See Figure 4 In some embodiments, in each layer of prestressed tendons 21, the prestressed tendon 21 closest to the outer periphery of the mounting part 11 is the outer ring, and the prestressed tendon 21 closest to the center of the mounting part 11 is the inner ring, and the difference between the radius of the outer ring and the radius of the inner ring is greater than or equal to 100mm.

[0041] In this embodiment, see Figure 4 1A and 1B are the two ends of the inner ring in the upper layer, 2A and 2B are the two ends of the outer ring in the upper layer, 3A and 3B are the two ends of the inner ring in the lower layer, and 4A and 4B are the two ends of the outer ring in the lower layer. The outer rings in different layers have the same radius, and the inner rings in different layers have the same radius.

[0042] In this way, the outer ring and inner ring can apply circumferential prestress to the outer and inner walls of the tower 1 respectively, offsetting the wind load borne by the tower 1, avoiding the generation of longitudinal cracks and damage to the structural integrity of the tower 1, and ensuring sufficient spacing between the outer ring and inner ring, which is beneficial for the bonding of the prestressing tendon 21 with the concrete and reducing the stress gap area of ​​the installation part 11. This allows the circumferential prestress applied by the prestressing tendon 21 to the tower 1 to be continuously and regularly distributed in its height direction, avoiding prestressing deviation due to local misalignment and generating additional bending moment and local damage, thereby improving the structural stiffness, overall safety stability and service durability of the wind power hybrid tower.

[0043] It is understandable that, in the prestressing tendons 21 of the same layer, the outer ring can be set above the inner ring or below the inner ring, as long as the prestressing tendons 21 are staggered. The relative positions of the outer ring and the inner ring can be adjusted according to actual needs. The difference between the radius of the outer ring and the radius of the inner ring should not be too small. If it is too small, it will increase the probability of assembly interference between adjacent prestressing tendons 21 during tensioning, and make the distance between the outer diameter and the inner diameter too small, increasing the stress blank area of ​​the installation part 11.

[0044] See Figure 3 and Figure 4 In some embodiments, the prestressing tendon 21 includes a first end and a second end, with the first end of the inner ring and the second end of the outer ring disposed within adjacent tensioning openings 111. In this embodiment, 1A and 2B are disposed within adjacent tensioning openings 111, and 3A and 4B are disposed within adjacent tensioning openings 111, spanning four tensioning openings 111 from the first end to the second end of the prestressing tendon 21.

[0045] In this way, the projection of the prestressing tendons 21 in the height direction of the installation part 11 can be staggered, thereby increasing the arrangement density of the prestressing tendons 21 within the limited space of the installation part 11. This allows for key compensation in the stress concentration area of ​​the variable diameter section, and avoids excessive local stress at the tensioning opening 111, concentrated concrete bearing pressure, and mutual interference between the prestressing tendons 21. This enables the prestressing tendons 21 to cover more than half of the circumference along the periphery, and the coverage sections of multiple sets of prestressing tendons 21 can be connected to each other along the periphery, reducing the stress gap area of ​​the installation part 11. This allows the circumferential prestress acting on the tower 1 to offset the wind load forces in different directions, preventing cracks from forming in the tower 1.

[0046] See Figure 3 In some embodiments, the prestressed component 2 further includes a reinforcing bar 22 disposed in the tension opening 111, the reinforcing bar 22 extending along the extension direction of the tension opening 111.

[0047] In this embodiment, the extension direction of the reinforcing bar 22 is parallel to the extension direction of the tensioning opening 111. Two reinforcing bars 22 are arranged circumferentially in one tensioning opening 111. Both reinforcing bars 22 are arranged on the same side of the anchoring end 1111. The tower 1 is provided with longitudinal steel bars (not shown in the figure). The reinforcing bar 22 is detachably connected to the steel bars. After the prestressed tendon 21 is tensioned, the reinforcing bar 22 is assembled into the tensioning opening 111, and concrete is poured to fill the tensioning opening 111.

[0048] Thus, the reinforcing bar 22 can increase the structural strength at the tensioning opening 111, avoid the generation of stress concentration areas, and connect with the longitudinal steel bars inside the tower 1 to generate longitudinal tensile stress on the tower 1, preventing vertical deformation and cracks around the tensioning opening 111, improving the structural strength at the anchoring end 1111, and enabling it to stably anchor the prestressing tendon 21. The reinforcing bar 22 is detachable, allowing sufficient space inside the tensioning opening 111 to first assemble and tension the prestressing tendon 21, and then assemble the reinforcing bar 22 to connect with the longitudinal steel bars inside the tower 1, restoring the longitudinal force transmission path that was cut off at the tensioning opening 111, so that the prestressing tendon 21 and the reinforcing bar 22 can compensate for the stress concentration points, improve the crack resistance and stiffness of the tower 1, and prevent longitudinal cracks from forming in the tower 1.

[0049] It is understandable that the number of reinforcing ribs 22 can be adjusted according to actual needs and is not limited to two, which will not be elaborated here.

[0050] See Figure 3 In some embodiments, a sleeve 221 is provided at the end of the reinforcing rib 22, and a reserved joint that cooperates with the sleeve 221 is provided inside the tensioning opening 111 so that the reinforcing rib 22 can be connected to the mounting part 11.

[0051] In this embodiment, the reserved joint is connected to the longitudinal steel bar inside the tower 1. The tensioning opening 111 is provided with reserved joints at both ends in the height direction of the installation part 11. The reinforcing bar 22 is provided with sleeves 221 at both ends, and the sleeves 221 are provided in a one-to-one correspondence with the reserved joints.

[0052] In this way, the reinforcing bar 22 can be installed after the prestressing tendon 21 is tensioned. After the reinforcing bar 22 is connected to the longitudinal reinforcement through the reserved joint and sleeve 221, it can form a continuous force transmission path with the longitudinal reinforcement of the tower 1, avoiding the interruption of the force transmission path at the tensioning opening 111, and does not affect the setting of the prestressing tendon 21. It can apply longitudinal and circumferential prestress to the installation part 11, which is convenient for disassembly and assembly, easy to position, and has high installation efficiency.

[0053] It is understandable that the reinforcing bar 22 can also be detachably connected to the longitudinal reinforcement of the tower tube 1 by setting ear plates, clamps, wedges and other structures, and is not limited to sleeve 221 and reserved joints. The connection method between the reinforcing bar 22 and the longitudinal reinforcement can be adjusted according to actual needs, which will not be listed in detail here.

[0054] See Figure 3In some embodiments, supports (not shown in the figure) are provided at positions where the projections of adjacent prestressing tendons 21 intersect in the height direction of the mounting portion 11, so that adjacent prestressing tendons 21 are spaced apart. In this embodiment, the supports are provided one-to-one with the intersection points of adjacent prestressing tendons 21, and multiple supports are arranged at intervals along the height direction of the mounting portion 11.

[0055] In this way, by setting up a support, the direct contact between adjacent prestressing tendons 21 at the intersection can be avoided, thus preventing friction and stress concentration. This improves the stability of the prestressing tendons 21 and allows the concrete to fully fill the space between adjacent prestressing tendons 21, preventing weak areas from being created in the installation part 11 due to gaps. The support can also fix the position of the prestressing tendons 21, making it easier to maintain a three-dimensional staggered layout during construction. This allows the prestressing tendons 21 to apply uniform circumferential prestress to the installation part 11 after the concrete is poured, extending the service life of the wind power hybrid tower.

[0056] It is understandable that adjacent prestressing tendons 21 can also be spaced apart by means of pads, sleeves or other structures, which will not be listed in detail here.

[0057] It should be noted that the construction method for wind power hybrid towers is as follows: Multiple tensioning openings 111 are made on the inner wall of the installation section 11 of the tower 1. The prestressing tendons 21 are anchored in the tensioning openings 111 and form a three-dimensional staggered structure. Supports are set at the positions where the projections of the prestressing tendons 21 intersect, so that the intersecting prestressing tendons 21 are separated and kept at a certain distance. After the prestressing tendons 21 are tensioned, reinforcing tendons 22 are assembled, and the tensioning openings 111 are sealed with concrete.

[0058] 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 wind power hybrid tower, characterized in that, include: Tower (1), the tower (1) includes a mounting part (11); The prestressed component (2) includes multiple sets of arc-shaped prestressing tendons (21). The multiple sets of prestressing tendons (21) are arranged along the height direction of the mounting part (11). The mounting part (11) has multiple tensioning openings (111) in the circumferential direction. The two ends of the prestressing tendons (21) are respectively located in two tensioning openings (111). Adjacent prestressing tendons (21) are staggered along at least two of the height direction, radial direction and circumferential direction of the mounting part (11).

2. The wind power hybrid tower according to claim 1, characterized in that, Along the height direction of the tower (1), the inner diameter of the mounting part (11) at the end away from the ground is smaller than the inner diameter at the end facing the ground.

3. The wind power hybrid tower according to claim 1, characterized in that, The arc length of the prestressed tendon (21) is greater than half the circumference of the mounting portion (11) at its corresponding position.

4. The wind power hybrid tower according to claim 1, characterized in that, A set of prestressing tendons (21) includes at least two layers of prestressing tendons (21), each layer of prestressing tendons (21) includes at least two prestressing tendons (21), adjacent prestressing tendons (21) are spaced apart, and within the same set of prestressing tendons (21), the distance between two adjacent layers of prestressing tendons (21) is greater than or equal to 100 mm.

5. The wind power hybrid tower according to claim 4, characterized in that, Each group of prestressed tendons (21) is provided with 4 prestressed tendons (21), each layer includes 2 prestressed tendons (21), and 8 tensioning openings (111) are provided. The 8 tensioning openings (111) are circumferentially arranged at equal intervals on the inner wall of the installation part (11).

6. The wind power hybrid tower according to claim 4, characterized in that, In each layer of prestressed tendons (21), the prestressed tendon (21) closest to the outer periphery of the mounting part (11) is the outer ring, and the prestressed tendon (21) closest to the center of the mounting part (11) is the inner ring. The difference between the radius of the outer ring and the radius of the inner ring is greater than or equal to 100 mm.

7. The wind power hybrid tower according to claim 6, characterized in that, The prestressed tendon (21) includes a first end and a second end, and the first end of the inner ring and the second end of the outer ring are disposed in adjacent tensioning openings (111).

8. The wind power hybrid tower according to claim 1, characterized in that, The prestressed component (2) also includes a reinforcing bar (22) disposed in the tensioning opening (111), the reinforcing bar (22) extending along the extension direction of the tensioning opening (111).

9. The wind power hybrid tower according to claim 8, characterized in that, The end of the reinforcing bar (22) is provided with a sleeve (221), and the tensioning opening (111) is provided with a reserved joint that cooperates with the sleeve (221) so that the reinforcing bar (22) can be connected to the mounting part (11).

10. The wind power hybrid tower according to any one of claims 1-8, characterized in that, In the height direction of the mounting part (11), a bracket is provided at a position where the projections of adjacent prestressing tendons (21) intersect, so that adjacent prestressing tendons (21) are spaced apart.

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