WO2015110580A1 - Mât haubané pour une éolienne ayant une résistance à la torsion élevée - Google Patents

Mât haubané pour une éolienne ayant une résistance à la torsion élevée Download PDF

Info

Publication number
WO2015110580A1
WO2015110580A1 PCT/EP2015/051363 EP2015051363W WO2015110580A1 WO 2015110580 A1 WO2015110580 A1 WO 2015110580A1 EP 2015051363 W EP2015051363 W EP 2015051363W WO 2015110580 A1 WO2015110580 A1 WO 2015110580A1
Authority
WO
WIPO (PCT)
Prior art keywords
tower
guy
elements
shaft
load introduction
Prior art date
Application number
PCT/EP2015/051363
Other languages
German (de)
English (en)
Inventor
Philipp Wagner
Original Assignee
X-Tower Constructions Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102014100814.6A external-priority patent/DE102014100814B4/de
Application filed by X-Tower Constructions Gmbh filed Critical X-Tower Constructions Gmbh
Publication of WO2015110580A1 publication Critical patent/WO2015110580A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/20—Side-supporting means therefor, e.g. using guy ropes or struts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/912—Mounting on supporting structures or systems on a stationary structure on a tower
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/913—Mounting on supporting structures or systems on a stationary structure on a mast
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/917—Mounting on supporting structures or systems on a stationary structure attached to cables
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines

Definitions

  • the invention relates to a tower construction for a wind energy plant, having a tower shaft which has a shaft cross-section and a longitudinal axis, and a plurality of bracing elements inclined to a longitudinal axis of the tower shaft, by which the tower shaft is braced at least in sections, the bracing elements being secured to one of the longitudinal axis of the tower shaft radially spaced load introduction point of the tower shaft are fixed and anchored radially outside the tower shaft in a ground, and wherein each guy element is assigned a radial direction which is defined in axial plan view by a centroid of the shank cross section and the load introduction point of the respective guy element.
  • the torsional stresses of the tower shaft are considerable, especially in large and high wind turbines (installed power> 2.5 MW, length of the rotor blades> 50 m, hub height> 140 m), so that material fatigue can occur over the intended plant life and the tower complex will ultimately be extensively rehabilitated got to.
  • the object of the invention is therefore to provide a tower construction for a wind energy plant, which has a slim, material-saving construction on the one hand and a particularly high torsional rigidity on the other hand.
  • a tower structure of the type mentioned in which at least some of the guy elements, starting from the respectively associated load introduction point with the associated radial direction in axial plan view form an angle, where: 45 ° ⁇ ⁇ 90 °, in particular 60 ° ⁇ ⁇ 90 °.
  • tensioning cables in particular prestressed tension cables made of steel, are preferably used as bracing elements.
  • the tension cables used as tensioning elements preferably extend substantially linearly, that is to say in a straight line from their load introduction points to their anchoring points. These anchoring points are formed for example on an abutment, which initiates the tensile forces from the guy elements in the ground.
  • at least one guy element can be coupled to a vibration damper, in particular with a friction damper or a cable for vibration damping of the guy element.
  • first bracing elements and second bracing elements are provided, wherein the first bracing elements a tangential force component in a first circumferential direction and the second tie down elements introduce a tangential force component in an opposite second circumferential direction into the tower shaft, wherein the number of first tie down elements preferably corresponds to the number of second tie down elements.
  • the tensioning elements can absorb torsional stresses acting on the tower shaft both in the first circumferential direction and in the opposite second circumferential direction and, if appropriate, counteract torsional excitation forces (damping).
  • Two bracing elements preferably form a guy pair, the bracing elements of a pair of guy braids facing one another in axial plan view and defining an opening angle ⁇ opening towards the tower shaft, where: ⁇ ⁇ 20 °, in particular ⁇ ⁇ 15 °.
  • each Abspannementpoc of a first guy element and a second guy element wherein in particular three uniformly distributed over the shaft periphery Abspannelementpase are provided.
  • a connecting path is defined between the two load introduction points of a guy element pair, wherein the two guy elements of the guy element pair are arranged in axial plan view preferably symmetrically to a perpendicular bisector to the connection path.
  • each pair of tie-bar elements designed as a prestressed pull cable pair acts on the tower shaft substantially "torsionally neutral.”
  • the two guy elements of a guy element pair intersect in an axial plan view.
  • This embodiment of the guy pairs also contributes to increased tower stiffness in terms of flexing and torsion.
  • the bracing elements of a guy element pair particularly preferably extend from their load introduction points to their anchoring points and are coupled to one another at their point of intersection.
  • a coupling or link in the intersection of the free span length of the guy elements and thus their susceptibility to vibration is reduced with little effort in an advantageous manner.
  • the anchoring elements are heavily stressed, especially in the area of anchoring points. A lower susceptibility to vibration of the guy elements thus increases their life and thus reduces the cost of maintaining the tower structure.
  • the two guy elements of a guy element pair converge substantially at one point.
  • the abutment can be made in this case with less effort, but also reduces the positive effect on the tower stability and optionally increases the susceptibility to vibration.
  • the two guy elements of a guy element pair preferably engage a common abutment for anchoring in the ground. In this way, halves the number of abutments required for the tower structure. As a rule, the associated savings far exceed the additional expenditure for the larger dimensioning of the remaining abutments, resulting overall in a reduction of the construction costs and the associated costs.
  • each anchoring element engages for anchoring in the ground at an abutment, wherein the abutment comprises at least one prestressed anchor and at least one foundation pile.
  • prestressed anchor and foundation pile enables significantly stronger prestressing of the guy elements and thus higher rigidity in the guy direction.
  • the stronger bias of the guy elements in turn contributes to increased stability and rigidity of the tower structure.
  • the natural frequency of the tower building also increases and thus moves away from the excitation frequency of the rotor of the wind turbine (1 p and 3p excitation). Unwanted resonance effects are thereby avoided.
  • the effective anchoring length of the prestressed armature is more than 8 m.
  • the abutment comprises a foundation body, to which at least one prestressed anchor and at least one anchoring element engage and at least one foundation pile is fastened.
  • the prestressed anchor preferably has an unanchored, substantially slidably mounted portion extending through the foundation body and / or the ground , For the preloaded anchor thus results in a total length of at least 10 m.
  • the tower shaft has radially outwardly projecting extensions, on each of which a load introduction point of a guy element is formed.
  • the lever arm with respect to which the torsion axis of the tower shaft increases, counteracts the tensioning elements of a torsional load of the tower shaft. Consequently, with identical tensile force in the guy elements an increased rigidity of the tower structure, or it is sufficient to lower tensile force in the guy elements to achieve the same tower stiffness.
  • the tower shaft is preferably a hollow shaft with a skirt wall encircling the shaft cross section.
  • the load introduction points are then provided, for example, on the shaft wall or near the shaft wall, so that the bracing elements have a sufficient lever arm to counteract the torsional loads of the tower shaft.
  • the tower shaft may have, at least in the region of the load introduction points, an annular wall in the shaft cross-section, the bracing elements extending in an axial plan view substantially tangentially to the shaft wall.
  • the anchoring elements act most effectively against a torsional load of the tower shaft, with slight deviations from the tangential direction in the order of ⁇ 5 ° are hardly significant and are also still referred to as "substantially tangential".
  • the tower shaft is made of reinforced concrete, in particular prestressed concrete, at least in the area of the load introduction points.
  • Tower shafts, in which each of the lower section to at least the load introduction points of the guy elements made of reinforced concrete or prestressed concrete, have been found to be particularly suitable for large and / or high wind turbines particularly suitable.
  • at least one anchoring element is designed as a rod, wherein such a rod can be made in one piece or composed of several rod sections.
  • a (possibly composite) rod has a greater inherent rigidity (pressure / bending) than a tension cable used as guy element and is therefore less prone to vibration.
  • FIG. 1 is a schematic view of a wind turbine with a tower structure according to the prior art
  • FIG. 2 shows a schematic cross section through a tower shaft of the tower structure according to FIG. 1 in the region of load introduction points of the guy elements;
  • FIG. 3 is a schematic view of a wind turbine with a tower construction according to the invention
  • FIG. 4 shows a schematic cross section through a tower shaft of a tower construction according to the invention in a first embodiment
  • - Figure 5 shows a schematic cross section through a tower shaft of a tower structure according to the invention in a second embodiment
  • FIG. 6 shows a schematic cross section through a tower shaft of a tower construction according to the invention in a third embodiment
  • - Figure 7 shows a schematic cross section through a tower shaft of a tower structure according to the invention in a fourth embodiment
  • FIG. 8 shows a schematic cross section through a tower shaft of a tower structure according to the invention in a fifth embodiment
  • FIG. 9 shows a schematic cross section through a tower shaft of a tower construction according to the invention in a sixth embodiment
  • FIG. 10 is a guy pair for the tower structure according to the invention in an axial plan view
  • FIG. 1 1 is a schematic sectional detail through an abutment of a tower structure according to the prior art
  • - Figure 12 is a schematic detail section through an inventive tower structure in the region of an abutment for guy elements;
  • FIG. 13 shows a schematic detail section through an inventive tower structure in the region of an abutment for guy elements according to a further embodiment variant
  • FIG. 14 shows a schematic detail section through a tower construction according to the invention in the region of an abutment for guy elements according to a further embodiment variant
  • FIG. 15 shows a schematic detail section through an inventive tower structure in the region of an abutment for guy elements according to a further embodiment variant
  • FIG. 16 shows a guy pair for the tower construction according to the invention in an axial plan view according to an alternative variant to FIG. 10;
  • FIG. 17 shows two alternative detail sections through a composite of rod sections guy element in the joint region of two rod sections.
  • Figures 1 and 2 show a view and a section through a known from the prior art tower construction 10 'for a wind turbine 12, with a tower shaft 14, which has a shank cross section 16 (see Figures 2 to 8) and a longitudinal axis A, and several to the longitudinal axis A of the tower shaft 14 inclined guy elements 18 ', through which the tower shaft 14 is at least partially braced.
  • the guy elements 18 ' are fastened to a load introduction point 22' of the tower shaft 14 radially spaced from the longitudinal axis A of the tower shaft 14 and anchored radially outside the tower shaft 14 in a ground 24.
  • each guy element 18 ' is assigned a radial direction 26, which is fixed in axial plan view by a center of gravity 28 of the shaft cross-section 16 and the load introduction point 22' of the respective guy element 18 '.
  • reference numeral 30 indicates the course of a shaft cross-section 16 that is substantially constant over a height h of the tower structure 10' and reference 32 'indicates the course of a torsional moment 33 constant over the height h, which is applied to a hub 34 of the wind energy plant 12 is initiated for example by lateral air flow or gusts of wind.
  • the comparatively large component deformations as a result of torsion come about in particular because only the material-optimized and very slender tower shaft 14 derives the torsional moment 33 via a shaft foundation 38 into the ground 24.
  • the guy elements 18 ' are substantially radially aligned according to FIG. 2 and therefore provide no or only a negligible proportion when removing the torsional moment 33 into the ground 24.
  • the tensioning elements 18 'extending in the radial direction 26 prevent a rotation of the tower shaft 14 (see FIG. 2, dashed lines) owing to the torsional moment acting on the hub 34.
  • FIG. 3 shows a view of a tower construction 10 for a wind power plant 12, this tower construction 10, in contrast to the known tower construction 10 'according to FIG. 1, having a significantly increased torsional resistance between the ground 24 and the load introduction points 22 of the guy elements 18, 20 the size and the constant profile 30 ', 30 of the shank cross sections 16 are identical over the height h.
  • the tower structure 10 of the wind energy installation 12 comprises, analogously to FIG. 1, the tower shaft 14 with the shank cross section 16 (see FIGS. 4 to 9) and the longitudinal axis A, as well as a plurality of bracing elements 18 inclined to the longitudinal axis A of the tower shaft 14 and running at least in sections outside the tower shaft the tower shaft 14 is braced at least in sections, the bracing elements 18 being fastened to a load introduction point 22 of the tower shaft 14 radially spaced from the longitudinal axis A of the tower shaft 14 and anchored radially outside the tower shaft 14 in the foundation 24, and each tie-down element 18 being a radial direction 26 is assigned, which is fixed in axial plan view through the centroid 28 of the shaft cross-section 16 at the level of the load application points 22 and the load application point 22 of the respective guy element 18.
  • the specified angle ⁇ is always the smaller of the two enclosed between the radial direction 26 and guying element 18, 20 angle.
  • FIGS. 4 to 9 show different embodiments of the load introduction points for the guy elements 18, 20 provided on the tower shaft 14.
  • FIG. 4 shows an embodiment of the tower construction 10, in which the tower shaft 14 has projections 40 projecting radially outwards, on each of which a load introduction point 22 of a guy element 18, 20 is formed.
  • radial extensions 40 increases in relation to the Torsions sin. Longitudinal axis A of the tower shaft 14 of the lever arm 42, with which the bracing elements 18, 20 counteract a torsional load of the tower shaft 14.
  • FIG. 5 shows a further embodiment of the tower construction 10, in which the tower shaft 14 is a hollow shaft with a shaft wall 44 encircling the shaft cross section 16 at least in the area of the load introduction points 22, the load introduction points 22 of the guy elements 18, 20 on a radial outside of the shaft wall 44 are formed.
  • the shaft wall 44 of the tower shaft 14 in FIG. 5 is annular in the shaft cross-section 16 at least in the area of the load introduction points 22, the bracing elements 18, 20 extending substantially tangentially to the shaft wall 44 in an axial plan view.
  • the guy elements 18, 20 most effectively counteract a torsional load of the tower shaft 14, with slight deviations from the tangential direction of the order of magnitude of ⁇ 5 ° scarcely being considered and likewise also being termed "substantially tangential".
  • FIG. 6 shows a further embodiment of the tower structure 10, which differs from the embodiment according to FIG. 5 only in that the load introduction points 22 of the guy elements 18, 20 are formed on a radial inner side of the shaft wall 44.
  • the lever arm 42 with which the guy elements 18, 20 counteract a torsional load of the tower shaft 14, decreases from FIG. 5 to FIG. 7 with identical shaft cross-section 16, the lever arm 42 is still sufficient in FIGS derive the torsional load via the guy elements 18, 20 into the ground.
  • FIG. 7 shows a further embodiment of the tower structure 10, which differs from the embodiment according to FIG. 6 only by the cross-sectional shape of the tower shaft 14.
  • polygonal tower shafts 14 instead of the preferred circular, in particular annular shaft cross-sections 16 with an outer diameter d, polygonal tower shafts 14, in particular polygonal tower shafts 14 with a hollow shank cross section 16 according to FIG. 7, can also be used.
  • FIG. 8 shows a further embodiment of the tower structure 10, in which two guy elements 18, 20 of the tower shaft 14 are integrally formed.
  • the two guy elements 18, 20 merge into one another in the region of their load introduction points 22 and are deflected on the tower shaft 14.
  • the center of the contact section of the guy elements 18, 20 on the tower shaft is regarded as a common load introduction point 22.
  • the tower shaft 14 is made of reinforced concrete, in particular prestressed concrete, at least in the area of the load introduction points 22.
  • Tower shafts 14, in which each of the lower section is made up to at least the load introduction points 22 of the guy elements 18, 20 made of reinforced concrete or prestressed concrete, have been found to be particularly suitable for large and / or high wind turbines 12 particularly suitable.
  • the tower shafts 14 according to the invention have the greatest advantages because in these cases the loads from external torsional moments 33 are greatest.
  • FIG. 9 shows a further embodiment of the tower structure 10, which only differs from the embodiment according to FIG differs by the shaft material, wherein the tower shaft 14 in this case is a truss or lattice mast.
  • guy elements 18, 20 preferably tension cables, in particular prestressed tension cables made of steel, are used.
  • first guy members 18 and second guy members 20 are provided, wherein the first guy members 18 introduce a tangential force component in a first circumferential direction and the second guy members 20 introduce a tangential force component in an opposite second circumferential direction into the tower shaft 14
  • Number of first guy elements 18 corresponds to the number of second guy elements 20.
  • FIG. 10 shows a first guy element 18 and a second anchor element 20 in an axial plan view, in each case between their load introduction points 22 and their anchoring points 48, wherein the guy elements 18, 20 extend linearly from their load introduction points 22 to their anchoring points 48.
  • the two guy elements 18, 20 form a guy pair 50, wherein the guy elements 18, 20 of the guy pair 50 converge in axial plan view and define an opening angle ⁇ which opens towards the tower shaft 14, where ⁇ ⁇ 20 °, in particular ⁇ ⁇ 15 °.
  • a connecting path 51 is defined between the two load introduction points 22 of the Abspannianopass 50, wherein the two guy elements 18, 20 of the Abspannianopass 50 in the axial Top view are arranged symmetrically to a perpendicular bisector 52 on the connecting section 51.
  • the guy elements 18, 20 of the guy element pair 50 shown are linked to one another in the region of their intersection point 53, whereby a maximum free oscillation length of the two guy elements 18, 20 is reduced by a length corresponding to the distance s k to a reduced one Oscillation length - s k shortened. Due to the reduced free oscillation length -s k , the natural frequency of the guy elements 18, 20 increases, so that their susceptibility to vibration is reduced (for example in the case of wind excitation).
  • the connection at the intersection point 53 also leads to a mutual vibration damping of the guy elements 18, 20. As shown in dashed lines in FIG.
  • a coupling element 55 can be provided for linking the guy elements 18, 20 at the point of intersection 53, which connects the two guy elements 18, 20 firmly connected at least transversely to their respective longitudinal direction.
  • the coupling element 55, the two guy elements 18, 20 also connect firmly in their respective longitudinal direction.
  • the two guy elements 18, 20 of a guy element pair 50 converge essentially in an anchoring point 48.
  • an abutment 54 of the guy elements 18, 20 can be made in this case with less effort, but also reduces the positive effect on the tower stability.
  • the free oscillation length of the two guy elements 18, 20 corresponds in this embodiment, the distance s- ⁇ between the load application point 22 and the anchoring point 48 of the respective guy element 18, 20th
  • the two guy elements 18, 20 of a guy element pair 50 preferably engage with a common abutment 54 for anchoring in the ground 24.
  • the number of abutments 54 required for the tower construction 10 is halved.
  • FIG. 1 1 shows a schematic sectional detail through an abutment 54 'of a tower structure 10' according to the prior art, wherein the abutment 54 'is fastened with tie rods in the ground 24.
  • FIG. 12 shows a diagrammatic sectional detail through an abutment 54 of a tower construction 10 according to the invention of a wind energy plant 12.
  • each anchoring element 18, 20 engages an abutment 54 for anchoring in the ground 24, wherein the abutment 54 has at least one preloaded anchor 56 such as a Compression anchor, in particular a GeWi- anchor, and at least one foundation pile 58, in particular a Bohroder pile comprises.
  • the anchors 56 and thus also the guy elements 18, 20 can be prestressed against the ground 24 without the permissible ground pressure at the underside of the abutment 54 being exceeded.
  • the bias of the guy elements 18, 20 in turn contributes to increased stability and rigidity of the tower structure 10.
  • the natural frequency of the tower construction 10 also increases, thereby moving away from the excitation frequency of the rotor of the wind turbine 12, so that no undesirable resonance effects occur.
  • the effective anchoring length of the prestressed armature 56 is more than 8 m.
  • the prestressed armature 56 is preferably composed of an anchoring section with the effective anchoring length of more than 8 m and a floating anchoring section, which has a sliding bearing and extends through the ground 24 and / or a foundation body of the Abutment 54 extends so that the biased anchor an overall length of at least 10 m results.
  • FIG. 13 shows a further variant of anchoring a guy element 18, 20, which differs from the anchoring variant according to FIG. 12 only in that no cavity 60 for tensioning or readjusting the guy elements 18, 20 has to be provided in the abutment 54, but the clamping the guy elements 18, 20 at a coupling joint
  • FIG. 14 shows a further variant of the anchoring of a guy element 18, 20, which differs from the anchoring variant according to FIG. 13 only by the orientation of the anchors 56 and of the foundation pile 58.
  • This anchoring variant is particularly advantageous if the foundation of the tower structure 10 takes place near a property boundary 59 which may not be overbuilt.
  • Figure 15 shows a further anchoring variant for the guy elements 18, 20, in which the carrying capacity of a solid foundation 62 (for example rock) is utilized.
  • the at least one foundation pile 58 is in this case preferably as a foundation plate above the solid ground
  • an additional load 64 can be provided in addition to the permissible tensile stress of the
  • a guy pair 50 is shown in FIG. 16, in which, however, the guy elements 18, 20 are designed not as pull cables but as rods in order to reduce the susceptibility to vibration of the guy elements 18, 20.
  • the bars are longitudinally composed of a plurality of separate bar sections 66 with longitudinally adjacent bar sections 66 fixedly connected together.
  • An abutting region 68 between a rod section 66 and the coupling element 55 can be embodied analogously to a joint region 68 between two rod sections 66, as shown in FIG. 17.
  • Figure 17 shows two alternative embodiments for the butt portions 68.
  • the opposite ends of the bar portions 66 are formed with a conical male thread 70 (e.g., rolled) and a complementary (e.g., rolled) conical female thread 72 with overhang 74.
  • a conical screw connection with projection 74 is particularly fatigue-resistant with regard to lateral vibrations and thus contributes to a particularly long-lasting and reliable connection of the rod sections 66 in the impact region 68.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Wind Motors (AREA)

Abstract

L'invention concerne un mât (10) pour une éolienne (12), comprenant un fût de mât (14), lequel possède une section transversale de fût (16) et un axe longitudinal (A), ainsi que plusieurs éléments de haubanage (18, 20) inclinés par rapport à l'axe longitudinal (A) du fût de mât (14), par lesquels le fût de mât (14) est haubané au moins dans certaines portions. Les éléments de haubanage (18, 20) sont fixés à un point de transfert de charge (22) espacé dans le sens radial de l'axe longitudinal (A) du fût de mât (14) et sont ancrés dans le sens radial à l'extérieur du fût de mât (14) dans un sol de fondation (24). À chaque élément de haubanage (18, 20) est associée une direction radiale (26) qui, vue de dessus dans le sens axial, est définie par un barycentre de surface (28) de la section transversale de fût (16) et le point de transfert de charge (22) de l'élément de haubanage (18, 20) correspondant. En vue de dessus dans le sens axial, au moins certains des éléments de haubanage (18, 20) entourent un angle (α) en partant du point de transfert de charge (22) respectivement associé avec la direction radiale (26) associée, avec : a) α = 90° ou b) 45°≤α<90°, notamment 60°≤α<90°.
PCT/EP2015/051363 2014-01-24 2015-01-23 Mât haubané pour une éolienne ayant une résistance à la torsion élevée WO2015110580A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014100814.6A DE102014100814B4 (de) 2013-09-03 2014-01-24 Turmbauwerk für eine Windenergieanlage
DE102014100814.6 2014-01-24

Publications (1)

Publication Number Publication Date
WO2015110580A1 true WO2015110580A1 (fr) 2015-07-30

Family

ID=52395082

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/051363 WO2015110580A1 (fr) 2014-01-24 2015-01-23 Mât haubané pour une éolienne ayant une résistance à la torsion élevée

Country Status (1)

Country Link
WO (1) WO2015110580A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017041806A1 (fr) * 2015-09-11 2017-03-16 Vestas Wind Systems A/S Section de mât destinée à un mât d'éolienne haubané
CN108824940A (zh) * 2018-05-23 2018-11-16 国网山东省电力公司菏泽市定陶区供电公司 一种电杆防倾翻装置
DE102018100868B3 (de) 2018-01-16 2019-02-21 Nordex Energy Gmbh Verfahren und Einrichtung zur Dämpfung von Turmschwingungen bei einer Windenergieanlage sowie Turm mit einer solchen Einrichtung
CN114525820A (zh) * 2022-03-10 2022-05-24 中国长江三峡集团有限公司 一种海上单桩预应力调节装置及其控制方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE705992C (de) * 1937-10-06 1941-05-15 Hein Lehmann & Co Eisenkonstru Durch Spannseile gehaltener und gegen Drehung gesicherter Mast
GB668408A (en) * 1949-07-07 1952-03-19 Pirelli General Cable Works Improvements in or relating to stayed masts

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE705992C (de) * 1937-10-06 1941-05-15 Hein Lehmann & Co Eisenkonstru Durch Spannseile gehaltener und gegen Drehung gesicherter Mast
GB668408A (en) * 1949-07-07 1952-03-19 Pirelli General Cable Works Improvements in or relating to stayed masts

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017041806A1 (fr) * 2015-09-11 2017-03-16 Vestas Wind Systems A/S Section de mât destinée à un mât d'éolienne haubané
CN108138751A (zh) * 2015-09-11 2018-06-08 维斯塔斯风力系统有限公司 用于栓系式风轮机塔架的塔架节段
US10273706B2 (en) 2015-09-11 2019-04-30 Vestas Wind Systems A/S Tower section for a tethered wind turbine tower
DE102018100868B3 (de) 2018-01-16 2019-02-21 Nordex Energy Gmbh Verfahren und Einrichtung zur Dämpfung von Turmschwingungen bei einer Windenergieanlage sowie Turm mit einer solchen Einrichtung
CN108824940A (zh) * 2018-05-23 2018-11-16 国网山东省电力公司菏泽市定陶区供电公司 一种电杆防倾翻装置
CN114525820A (zh) * 2022-03-10 2022-05-24 中国长江三峡集团有限公司 一种海上单桩预应力调节装置及其控制方法

Similar Documents

Publication Publication Date Title
EP2893187B1 (fr) Tour éolienne et procédé de stabilisation d&#39;une tour éolienne
EP2877654B1 (fr) Mât modulaire d&#39;une éolienne
EP3469212B1 (fr) Rotor pour éolienne, pale de rotor pour éolienne, manchon et procédé de montage d&#39;un rotor
DE102010017062B4 (de) Rotorblatt einer Windkraftanlage
EP2673505B1 (fr) Mât pour éolienne
EP3497325B1 (fr) Segment de mât, partie de mât, mât, éolienne ainsi que procédé permettant de fabriquer un segment de mât et de relier des segments de mât
EP3092358B2 (fr) Éolienne pourvue d&#39;un mât et d&#39;une embase composée de plusieurs segments
EP2422083A2 (fr) Mat pour aerogenerateur
EP2764185B1 (fr) Procédé destiné à construire un mât, mât ainsi obtenu
DE102014100814B4 (de) Turmbauwerk für eine Windenergieanlage
EP3423639B1 (fr) Pieu de fondation pour une éoliènne
EP2195530B1 (fr) Structure de mât pour tours en treillis d&#39;éoliennes
EP3198092B1 (fr) Piece de transition pour eoliennes et structures de liaison
DE102017125060A1 (de) Ringförmige Konsole zum externen Spannen eines Turmsegments, externes Spannsystem eines Hybridturms, Turmabschnitt eines Hybridturms, Hybridturm, Windenergieanlage und Montageverfahren eines externen Spannsystems für einen Hybridturm
WO2015110580A1 (fr) Mât haubané pour une éolienne ayant une résistance à la torsion élevée
EP4004291B1 (fr) Structure de support, en particulier pour éoliennes en mer et/ou sur terre
EP3477099A1 (fr) Tour pourvue d&#39;éléments adaptateurs en acier coniques
EP2288771A2 (fr) Tour d&#39;une eolienne
WO2017202841A1 (fr) Dispositif de montée pour la réalisation d&#39;un mouvement par rapport à un mât et procédé de fabrication d&#39;un mât
EP3658771A1 (fr) Partie de tour en acier pour éoliennes, pour une tour d&#39;éolienne et procédé pour la produire
DE102016102213A1 (de) Verfahren zum Errichten eines Windkraftturms einer Windkraftanlage mittels eines Krans, Windkraftturm sowie Stahlsegment für einen Windkraftturm einer Windkraftanlage
EP1873331A2 (fr) Pylône de ligne électrique aérienne en béton centrifugé
EP3927918B1 (fr) Composant d&#39;éolienne pour une tour d&#39;éolienne, tour d&#39;éolienne, pale de rotor, éolienne et procédé de fabrication d&#39;un composant d&#39;éolienne
EP3927966B1 (fr) Segment annulaire de tour en acier pour une partie de tour d&#39;éolienne et procédé
EP3502378B1 (fr) Segment de tour pour une éolienne et procédé de fabrication d&#39;un segment de tour

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15701021

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15701021

Country of ref document: EP

Kind code of ref document: A1