Tower-like structure for wind power generation equipment, method for manufacturing such structure, and wind power generation equipment

Abstract

The invention relates to a tower-like construction, in particular for a wind power installation formed as an offshore construction, having at least one lower structural part, in particular formed as a monopile, and an upper structural part, in particular formed as a transition piece, the upper structural part partially overlapping the lower structural part in order to form a slip joint, the upper structural part and the lower structural part each having a conical structural section, the upper and lower structural parts each having at least one further structural section forming a slip joint together, the further structural section being arranged above and / or below the conical structural section, viewed transversely to a central longitudinal axis of the construction, the surface normal of the further structural section intersecting the longitudinal axis at a greater angle (α) than the surface normal of the conical structural section. Furthermore, the invention relates to a method for manufacturing a tower-like construction, in which at least some of the connection elements are injection- or cast-molded onto a lower and / or upper structural part, as well as to a wind power installation, in particular an offshore wind power installation.

Description

Technical Field

[0001] The present invention relates to a building of the type described in the preamble of claim 1, and to a method for manufacturing such a building. The present invention also relates to a wind power plant.

[0002] The subject matter mentioned at the outset is known from European Patent No. 3443224. A tower-like building or support structure for a wind power plant connects a nacelle supporting a rotor to a foundation, in particular to the seabed. In a building of the type mentioned at the outset, the connection region or overlap region of a slip joint is limited to the conical regions of the lower and upper structural parts, respectively. Load transmission therefore takes place via the conical connection region. This region must be formed correspondingly large in accordance with the applied bending loads and support loads, which increases the cost of the building.

[0003] The object of the present invention is to improve a support structure provided in consideration of occurring loads such that the manufacturing of the building as a whole is better.

[0004] This problem is solved by the object of claim 1, wherein the upper and lower structural parts each have at least one additional structural section that together form a slip joint, the additional structural section being located above or below the conical structural section when viewed laterally with respect to the central longitudinal axis of the building, and the perpendicular of the additional structural section intersects the longitudinal axis at a larger angle than the perpendicular of the conical structural section. When the upper and lower structural parts are provided with two additional structural sections that together form a slip joint, preferably one of these two additional structural sections is located above each conical structural section and the other is located below each conical structural section, and the perpendiculars of the one and the other additional structural sections intersect the central longitudinal axis of the building at a larger angle than the perpendicular of the conical structural section. In this case, the surface perpendiculars are observed in the vertical section of the building in the vertical direction, i.e., at the same inscribed angle with respect to the central longitudinal axis of the building, which extends perpendicularly above the foundation when the building is oriented vertically. The surface perpendiculars of each structural section extend perpendicularly from the surface in the direction of the longitudinal central axis of each structural part; that is, for example, the surface perpendicular to the outer surface of a lower structural part extends perpendicularly from the surface of the lower structural part, through the wall of this structural part, toward the longitudinal central axis. The surface of a conical structural section corresponds at least substantially, and especially perfectly, to the surface of a frustocone, in which case manufacturing tolerances or protrusions necessarily present by, for example, weld seams are not considered.

[0005] At least one additional structural section of the lower structural part is positioned at a predetermined height with respect to the longitudinal central axis to form a slip joint with at least one additional structural section of the upper structural part. If there are two additional structural sections for each structural part, both (second) additional structural sections are also positioned adjacent to each other at a predetermined height. Preferably, these structural sections extend parallel to each other, since the perpendiculars of these pairs of faces of the structural sections intersect the longitudinal axis at the same angle, ignoring manufacturing tolerances.

[0006] In conventional technology, the resulting load transfer was calculated only with respect to the conical structural section, which in this case had to be dimensioned accordingly. The larger the overlap area, the smaller the load, or the greater the bending moment that can be absorbed. As the equipment grows larger, the conical section of the building or support structure becomes larger and, consequently, more expensive. This invention now utilizes the recognition that the resulting load transfer can now be separated or divided, at least partially. For purely axial loads, a significantly shorter overlap length will suffice if the angle of the cone is the same. Therefore, according to this invention, the axial force determined by the weight of the upper structural section and the wind power equipment attached thereto is at least partially separated from the bending load caused by, for example, wind and waves. The axial force is still absorbed by the cone, while the bending load is now absorbed at least partially, and at least together with, the additional structural section. The load on the slip joint connection resulting from the axial load and bending load occurs at various points in this case, and stress superposition is at least partially avoided. Therefore, the slip joint connection is formed by regions of structural parts that include connecting elements, which may be placed between the structural parts, and that function for load transmission and come into contact with each other.

[0007] This corresponds in particular to an embodiment of the present invention in which, in addition to the conical structural section, there are additional upper and lower structural sections, in which case the connecting region continues both above and below the central conical region. In this case, the bending load is transmitted at least substantially, preferably at least 80%, and more preferably at least 90%, in these additional structural sections.

[0008] Preferably, the perpendiculars of the surfaces of the other structural sections of the upper and lower structural parts are formed to intersect the longitudinal axis at the same angle. Thus, the extension of the structural parts of the connection region consisting of three parts is parallel, at least in the region outside the transition between the structural sections. The lower and upper structural parts each form three structural sections that form a slip joint, in which case one of the two other structural sections is formed above the conical structural section, and the other of the two other structural sections is formed below the conical structural section.

[0009] Preferably, the angle at which the perpendicular of another structural section intersects the central longitudinal axis is at least 2° different from the angle at which the conical structural section intersects the central longitudinal axis.

[0010] Preferably, at least one additional structural section of the lower and / or upper structural portion is formed into a hollow cylindrical shape, particularly by straight tubular segments. The perpendiculars of the additional structural section in this case extend perpendicularly to the central longitudinal axis, in particular. The central conical portion, in particular (if there are two additional structural sections), following at least one hollow cylindrical structural section, can be constructed to be significantly smaller and therefore less expensive. The cost advantages of designing the central conical structural section to be smaller are particularly significant when dimensions and loads are increasing, with respect to the manufacture of buildings and corresponding wind turbines according to the present invention.

[0011] Aspects of the present invention particularly advantageous for load transmission during operation are obtained by lower and upper structural parts, each having one conical structural section and the other structural section being formed in a hollow cylindrical shape. Of these other structural sections, preferably one is connected upward (with respect to the central longitudinal axis at the operating position of the structural part) to the conical structural section and the other downward.

[0012] Preferably, a connecting device comprising a plurality of connecting elements, particularly ring-shaped, plate-shaped, and / or layered, and preferably elastic, particularly viscoelastic and / or compressible, is arranged between the lower and upper structural parts for load transfer between the upper and lower structural parts. This connecting device may be arranged in at least one of two or three divisions of the slip joint connection area, circumferentially around a central longitudinal axis, and thereby forming a seal plane. However, the connecting elements may be spaced apart from each other, and these connecting elements are spaced apart from each other along the central longitudinal axis across the height of the building and / or circumferentially. In particular, no connecting elements are arranged in the transition area between, for example, a hollow cylindrical pipe section or structural section and a conical structural section, thereby improving the arrangement and fitting accuracy of each connecting element. Preferably, at least in the longitudinal direction, a plurality of connecting elements are distributed uniformly circumferentially around the longitudinal axis for each structural section, with respect to the longitudinal direction.

[0013] In particular, the connecting device forms a circumferential seal in the central structural section of the cone-shaped structure of the building. This seal arrangement is particularly advantageous because, if the substantial bending load is absorbed by the lower and upper structural sections, the relative motion between the lower and upper structural sections, which may occur as a result of the bending load, acts only slightly on this structural section.

[0014] In particular, the connecting elements are formed from polyurethane, at least largely. For example, the connecting elements are polyurethane plates with a layer of slide lacquer or other anti-friction coating on their surface, which facilitates the installation of the lower and upper structural components.

[0015] Depending on the orientation of the structural sections to be connected between the lower and upper structural parts, connecting elements positioned between structural sections located vertically relative to each other with respect to the longitudinal axis are provided with angled surface normals relative to each other. This also corresponds to observing a vertical section view perpendicular to the central longitudinal axis. Advantageously, at least one connecting element positioned between conical structural sections is provided with a different thickness than the adjacent connecting element when viewed transversely to the longitudinal axis. This typically takes into account the loads that occur there. The connecting elements may also be provided with a thickness that varies in particular in the direction of their planar extension.

[0016] In a further embodiment of the structure according to the present invention, at least one of the connecting elements, which are arranged adjacent to each other in the circumferential direction with respect to the longitudinal axis, may also have a greater thickness than the connecting element located next to it or above it with respect to the longitudinal axis. This allows for compensation of errors that occur in the structural parts. For example, the connecting elements may have beveled edges to allow for reliable vertical sliding of each other when installing the structure by placing the upper structural part on top of the lower structural part. This is particularly true for connecting elements arranged between upper and lower hollow cylindrical structural sections.

[0017] At least a portion of the connecting element is advantageously deformable at least partially elastically, and especially viscoelastically. This can help to adapt the connecting element to the inaccuracies and non-flatness of the lower and upper structural parts, such as the morphology of weld seams, so that such weld seams are well surrounded, for example, by a sealing plane, or gaps resulting from the improper placement of the connecting element are closed. Furthermore, damping can be increased, thereby improving the long-term stability of the equipment. If a portion of the connecting element, i.e., at least one connecting element, has a variable thickness, so that errors in the structural part or bulges in the weld seams are compensated, for example, this can also help to adapt to the structural part. That is, the individual connecting element itself may have a variable thickness so that deviations from the target dimensions, such as the morphology of the weld seams, which may be present on the structural part side, can be taken into account. The connecting element may also have an inclined surface, or at least partially a wedge-shaped cross-section, for example, to improve installation.

[0018] The connecting elements of the connecting device are preferably made of high-density polyurethane, which is preferably entirely, and optionally has recesses, except for any coatings or outer adhesive layers that may be present. Within the scope of the present invention, high-density polyurethane or solid polyurethane should be understood as a solid object that is substantially free of gaseous inclusions. In this case, "substantially free of gaseous inclusions" means that the polyurethane preferably contains less than 20 vol%, more preferably less than 10 vol%, especially less than 5 vol%, and very especially less than 2 vol% of gaseous inclusions.

[0019] In addition to the use of at least partially elastic load-transmitting connecting elements, whose thickness may be particularly 2 to 10 cm when viewed laterally with respect to each planar extension, at least a portion of the connecting elements may be formed to be at least partially compressible, and the compressibility of each connecting element is formed in particular by surface structuring, by recesses in the material, and / or in particular by the material of at least one layer of the multilayered connecting element. For example, this may be a foamed polyurethane compound forming a plate-like connecting element.

[0020] The formation of a compressible and / or at least partially elastic connecting element not only facilitates load transmission between the lower and upper structural parts of a tower-like structure, but also dampens the resulting forces, thereby improving the integrity of the structure compared to previously known connections using mortar or pins.

[0021] The problem mentioned at the beginning is a method for manufacturing a tower-like structure formed as described above or later, which can also be solved by injection molding or casting at least a portion of the connecting elements onto the lower and / or upper structural parts. Advantageously, the connecting elements are placed on the transition piece, regardless of the manufacturing method. For example, the application of a casting material in the form of polyurethane can be improved with an adhesion promoter or primer, and the attachment of plate-like connecting elements can be improved with an adhesive.

[0022] In particular, one or more magnetic retaining devices can be used to hold the connecting elements in place until they are securely fixed, for example, by the curing of an adhesive.

[0023] Advantageously, at least a part of the connecting element is manufactured in advance and then mounted onto the lower and / or upper structural part. Preferably, all connecting elements are pre-cast, for example in the form of a plate, and then mounted in particular onto the upper structural part. An option which is advantageous for fixing the connecting element due to its ease of handling consists in the use of a magnetic holding device that holds the connecting element in the desired position on the upper and lower structural parts until the connecting element is at least sufficiently fixed.

[0024] For deviations of a structural part from a predetermined shape, which may exist in some cases due to manufacturing tolerances or, for example, due to a weld seam, the upper and / or lower structural part is measured after manufacturing, whereby a deviation dimension resulting from a deviation from the target shape that exists in some cases is obtained, and this deviation dimension can be taken into account by means of different thicknesses and / or planar extensions of the connecting element. Such deviations can already be taken into account during the manufacturing of the connecting element. However, it is preferred that the deviation dimension is taken into account by post-processing of at least one connecting element, and such post-processing can be additionally carried out subsequently, for example, by removing material through milling.

[0025] The problem mentioned at the beginning is also solved by a wind power installation, in particular an offshore wind power installation, comprising a building structure described above or described below.

[0026] Further advantages and details of the invention will become apparent from the following description of the drawings. The figures are shown schematically. Brief Description of the Drawings

[0027] [Figure 1] Fig. 1 shows an object according to the present invention. [Figure 2] Fig. 2 is a cross-sectional view showing an object according to the present invention. [Figure 3] Fig. 3 is a detailed view of the object according to the present invention shown in Fig. 2. [Figure 4] Fig. 4 shows a further object according to the present invention. [Figure 5] It is a partial view of the object according to the present invention shown in Figure 4. [Figure 6] It is a (partial) vertical sectional view of the object shown in Figure 4. [Figure 7] It is a vertical longitudinal sectional view showing a further object according to the present invention. [Figure 8] It is a vertical longitudinal sectional view showing a further object according to the present invention. [Figure 9] It is a vertical longitudinal sectional view showing a further object according to the present invention. [Figure 10] It is a vertical longitudinal sectional view showing a further object according to the present invention. [Figure 11] It is a vertical longitudinal sectional view showing a further object according to the present invention.

[0028] Individual technical features of the embodiments described below can form further configurations according to the present invention, even when combined with features of each claim, or with features of at least one of the independent claims. To the extent significant, members having functionally identical functions are denoted by the same reference numerals.

[0029] The wind power plant according to the present invention is preferably configured as an offshore wind power plant, and comprises a lower structural part 2, with an upper structural part 4 fitted over the lower structural part. In this case (Figure 1), the lower structural part 2 is configured as a monopile. The upper structural part 4 serves as a transition piece and forms a transition to a nacelle 8 provided with rotor blades 6.

[0030] Therefore, the wind power generation facility also includes a structure according to the present invention, including lower and upper structural parts 2,4 and, optionally, connecting devices positioned between them. The lower structural part 4 is positioned vertically on the seabed or foundation 10 and protrudes from the water surface 12. The load acting on the connection between the lower and upper structural parts is, on the one hand, generated by the weight load of the transition piece and the nacelle 8 positioned on top of it, which is oriented perpendicular to the foundation 10. Additional loads extending horizontally to the foundation are generated by wind and waves, and these loads also act on the transition piece and, consequently, must be transmitted from the monopile through the connection. In some cases, vibrations or shocks acting on the monopile are also, optionally additionally, transmitted in the direction of the transition piece.

[0031] The configuration and connection of the slip joint type according to the present invention for a structure or wind power generation facility shown in Figure 1 is disclosed in Figure 2. The connection area 14 extends from the lower end 16 of one connection element 18 to the upper end 20 of another connection element 18. Overall, there are three structural sections for the lower structural part 2 and the upper structural part 4, each forming a slip joint connection. The first structural section 22 is defined by a lower hollow cylindrical portion of the upper structural part 2 located in the connection area. This section is located below a conical structural section 24, which is also referred to below as the middle structural section of the transition piece. Above it is a structural section 26, also formed in a hollow cylindrical shape, which has a smaller outer diameter than the lower structural section 22. Lower, middle, and upper are understood as relative positions with respect to a central longitudinal axis 28 that extends perpendicularly to the foundation 10 and through the middle of the structure. The perpendicular lines 29 to the outer surface of the lower structural section 2 and to the inner surface of the upper structural section 4 intersect the central longitudinal axis extending from the center of the building at different angles α depending on their relationship to the structural sections when viewed from above. That is, the upper and lower structural sections 22 and 32 or 26 and 36, which are both connected to the central conical structural sections 24 and 34, extend at an angle to the central conical structural sections. In the conical structural sections 24 and 34, the perpendicular lines 29 intersect the longitudinal axis 28 at an angle of approximately 85°, whereas in the subsequent upper and lower structural sections, the perpendicular lines extend perpendicular to the longitudinal axis, i.e., at an angle of 90°.

[0032] On the lower structural portion or monopile side, the structural sections can be defined in the same way as the structural sections 22, 24, and 26 of the transition piece. The lower hollow cylindrical portion 32 of the lower structural portion 2 is the lower structural section. This lower structural section transitions upward to a central conical structural section 34 formed by the conical region of the lower structural portion 2, and this central conical structural section is followed upward again by a hollow cylindrical structural section 36, the outer and inner diameters of which are smaller than the outer and inner diameters of a similarly hollow cylindrical structural section 32 located further below. All structural sections 22, 24, 26, 32, 34, and 36 are formed to enclose the central longitudinal axis 28. In the drawings, for simplicity, structural sections 22, 24, 26, 32, 34, and 36 are partially shown by curly braces rather than arrows.

[0033] In the embodiment shown in Figure 2, the connecting element 18 is positioned only between the hollow cylindrical structural sections 26 and 36 or between 22 and 32, and functions to transmit the resulting bending moment. Since the vertical load due to weight is substantially constant and therefore little damping is required, the conical structural sections 24 and 34 overlap each other, and thus direct load transmission occurs between the conical elements. Bending loads that result with relatively significant differences are transmitted substantially in the structural sections 22, 32 and 26, 36, and partly by the inclined surfaces of the conical connecting sections. This is caused in particular by the lengths of the upper and lower structural sections and the spacing between them.

[0034] The detailed view in Figure 3 shows that the connecting element 18 does not extend from the upper structural sections 26 and 36 into the conical region. This facilitates the formation and placement of the connecting element.

[0035] The structural sections of the lower and upper structural parts form a total of three connection divisions within the connection area 14. The first connection division includes the lower structural sections 22 and 32. The middle connection division includes the conical structural sections of the lower and upper structural parts 2 and 4. The third connection division includes the regions of the upper hollow cylindrical structural sections 26 and 36. Each of these connection divisions may have one or more parts of a connecting device.

[0036] In the embodiment shown in Figure 4, for each connection section, two rows of connecting elements 18, positioned adjacent to each other in the circumferential direction, are pre-fixed to the transition piece at intervals from each other. The connecting elements 18 located in the conical connection section have a uniform thickness, whereas the connecting elements 18 located in the lower rows of each hollow cylindrical structural section have varying thicknesses in the direction of the longitudinal axis 18, which significantly facilitates the sliding of the two structural parts relative to each other during assembly (Figures 5 and 6). To further improve the assembly of the structure, similarly, an additional row, i.e., a second upper row of the hollow cylindrical structural section, also has connecting elements whose lower end thickness is smaller than that of the upper end thickness.

[0037] The thickness of the connecting element 18 preferably varies by at least 30%, more preferably by at least 80% and up to 90%, in which case, when the connecting element 18 is attached to the upper structural part 4, the thinner end of the connecting element 18 is positioned downwards when viewed in cross-section. When the connecting element 18 is attached to the monopile or the lower structural part 2, the thinner end of the connecting element 18 is positioned upwards before the two structural parts are inserted into each other inward and outward.

[0038] Instead of two rows of connecting elements 18, it is also possible to provide only one connecting element 18 for each connection section. In this case, similar to the embodiment shown in Figure 6, these connecting elements 18, which are positioned between the hollow cylindrical structural sections, also have varying thicknesses (Figure 7).

[0039] In the embodiment shown in Figure 8, the thickness of the connecting element 18 does not change. The surface normals 31 of the connecting elements, which are positioned vertically relative to each other, intersect the central longitudinal axis and the longitudinal center axis 28 at different angles β, and are therefore at an angle to each other. These connecting elements have a uniform thickness in all three connection sections of the connection area 14. The thickness is commonly observed laterally with respect to the planar extension of the connecting element. However, for the purpose of measuring the thickness of the connecting element, the connecting element is not considered to be loaded by the structural part of the building. The thickness is particularly 2 to 10 cm, preferably at least 1 / 5 of the width and / or length of the connecting element 18, and more preferably 1 / 10. The thickness of a connecting element that is positioned flat on the ground is measured perpendicular to the foundation. If the connecting element is positioned in a hollow cylindrical part of the building, the thickness is defined perpendicular to the longitudinal axis. When the connecting element is positioned in a conical connecting section, the thickness of the connecting element 18 is measured perpendicular to the surfaces of the lower and upper structural sections. In this case, the planar extension is observed perpendicular to the direction in which the thickness is measured.

[0040] Alternatively, the connecting device may have rounded connecting elements instead of plate-shaped connecting elements. These connecting elements may extend around the entire circumference with respect to the longitudinal axis, thereby forming a seal. Alternatively, the connecting elements may be provided solely for support purposes, for example, at intervals, particularly fixed on a transition piece, and then pressed onto a monopile.

[0041] Generally, the lower structural part does not need to be a monopile. A tower-like structure may have multiple slip joint connections, forming, for example, a tripod, and the three legs of the wind turbine could each be formed by slip joint connections.

[0042] Preferably, the dimensions of the connecting element 18 are set according to the loads generated in each region.

[0043] In Figure 9, the connecting elements 18 positioned between the lower structural sections 22 and 32 and between the upper structural sections 26 and 36 occupy a relatively small area in the illustrated vertical cross-sectional view, whereas the connecting elements 18 positioned in the conical connecting section are formed to be significantly larger.

[0044] Figures 10 and 11 disclose another simplified embodiment of a tower-like structure, in which a single hollow cylindrical structural section 26 or 36 (Figure 10) extends upward from a conical structural section 22 or 24, or a single hollow cylindrical structural section 22 or 32 extends downward. In this case, the connecting elements positioned in each section are formed to chamfer appropriately to serve as advantageous guides for the lower structural section 22 (Figure 11) of the upper structural section 4 or the structural section 26 of the upper structural section 4 during assembly. Preferably, chamfering of the connecting elements 18 in the conical region is generally not performed. Nevertheless, even in this region, the thickness of the connecting elements can be adapted to any deviation from the target dimension that may occur.

Claims

1. A tower-shaped structure for a wind power generation facility, comprising at least one lower structural portion (2) and an upper structural portion (4), wherein the upper structural portion is partially overlapped with the lower structural portion (2) to form a slip joint, and the upper structural portion and the lower structural portion each have one conical structural section (24, 34), in a tower-shaped structure, Each of the upper and lower structural parts (2, 4) has at least one additional structural section (22, 32, 26, 36) that together form a slip joint, the additional structural section being positioned above and / or below the conical structural section (24, 34) when viewed laterally with respect to the central longitudinal axis (28) of the building, the perpendicular line (29) of the additional structural section intersects the longitudinal axis (28) at a larger angle (α) than the perpendicular line (29) of the conical structural section. Between the lower structural part (2) and the upper structural part (4), a connecting device including a plurality of connecting elements (18) is arranged for load transmission between the upper structural part (4) and the lower structural part (2). With respect to the longitudinal axis (28), the connecting element (18) positioned between the structural sections (22, 24, 26, 32, 34, 36) of the lower and upper structural parts (2, 4), which are located one above the other, has angled surface normals (31) relative to each other. A tower-like structure characterized by the following features.

2. A tower-shaped structure for a wind power generation facility, comprising at least one lower structural portion (2) and an upper structural portion (4), wherein the upper structural portion is partially overlapped with the lower structural portion (2) to form a slip joint, and the upper structural portion and the lower structural portion each have one conical structural section (24, 34), Each of the upper and lower structural parts (2, 4) has at least one additional structural section (22, 32, 26, 36) that together form a slip joint, the additional structural section being positioned above and / or below the conical structural section (24, 34) when viewed laterally with respect to the central longitudinal axis (28) of the building, the perpendicular line (29) of the additional structural section intersects the longitudinal axis (28) at a larger angle (α) than the perpendicular line (29) of the conical structural section. Between the lower structural part (2) and the upper structural part (4), a connecting device including a plurality of connecting elements (18) is arranged for load transmission between the upper structural part (4) and the lower structural part (2). One of the connecting elements (18) arranged adjacent to each other in the circumferential direction centered on the longitudinal axis has a greater thickness than the connecting element (18) located next to it. A tower-like structure characterized by the following features.

3. The structure according to claim 1 or 2, wherein the perpendicular line (29) of the other structural section (22, 26) of the upper structural part (4) and the perpendicular line (29) of the other structural section (32, 36) of the lower structural part (2) intersect the longitudinal axis (28) at the same angle (α).

4. The structure according to claim 1 or 2, wherein the lower and upper structural parts (2, 4) each form three structural sections (22, 32, 26, 36) that form the slip joint, one of the two other structural sections (26, 36) is formed on the upper side of the conical structural section (24, 34), and the other of the two other structural sections is formed on the lower side of the conical structural section (24, 34).

5. The structure according to claim 1 or 2, wherein at least one of the other structural sections (22, 32, 26, 36) of the lower and / or upper structural sections (2, 4) is formed into a hollow cylindrical shape.

6. The structure according to claim 5, wherein the lower and upper structural parts (2, 4) each have two separate structural sections (22, 32, 26, 36), and the separate structural sections (22, 32, 26, 36) are formed into a hollow cylindrical shape.

7. The structure according to claim 1 or 2, wherein at least a portion of the connecting element (18) is elastically deformable at least partially.

8. The structure according to claim 1 or 2, wherein at least a portion of the connecting element (18) is at least partially compressible.

9. A method for manufacturing a tower-like structure according to claim 1 or 2, characterized in that at least a portion of the connecting element (18) is injection molded or pour-molded onto the lower and / or upper structural parts (2, 4).

10. A method for manufacturing a tower-shaped structure, The tower-like structure has at least one lower structural part (2) and an upper structural part (4), the upper structural part partially overlapping the lower structural part (2) to form a slip joint, and the upper structural part and the lower structural part each have one conical structural section (24, 34). The upper and lower structural parts (2, 4) each have at least one additional structural section (22, 32, 26, 36) that together form a slip joint, the additional structural section being positioned above and / or below the conical structural section (24, 34) when viewed laterally with respect to the central longitudinal axis (28) of the building, the perpendicular line (29) of the additional structural section intersects the longitudinal axis (28) at a larger angle (α) than the perpendicular line (29) of the conical structural section. In the method, A method characterized by pre-fabricating at least a portion of the connecting element (18) and then attaching it to the lower and / or upper structural parts (2, 4).

11. The method according to claim 10, wherein the upper and / or lower structural parts (2, 4) are measured after manufacturing, and the deviation dimensions resulting from the deviation from the target shape are adjusted by different thicknesses and / or planar extensions of the connecting element (18).

12. The method according to claim 11, wherein the deviation dimension is adapted by post-processing of at least one of the connecting elements (18).

13. A wind power generation facility characterized by a structure according to claim 1 or 2.

Images