WO2002001025A1 - Spannbetonturm für eine windenergieanlage sowie windenergieanlage - Google Patents
Spannbetonturm für eine windenergieanlage sowie windenergieanlage Download PDFInfo
- Publication number
- WO2002001025A1 WO2002001025A1 PCT/EP2001/001999 EP0101999W WO0201025A1 WO 2002001025 A1 WO2002001025 A1 WO 2002001025A1 EP 0101999 W EP0101999 W EP 0101999W WO 0201025 A1 WO0201025 A1 WO 0201025A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- prestressed concrete
- tower
- foundation
- prestressing
- prestressing steel
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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
- E04H12/16—Prestressed structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
-
- 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
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
-
- 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
-
- 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
-
- 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 present invention relates to a prestressed concrete tower for a wind turbine, with a foundation, a tower consisting essentially of concrete and at least one rope-like prestressing steel element for bracing the tower, and a wind turbine with such a prestressed concrete tower.
- the tower of a wind turbine is an essential part of a wind turbine.
- the cost of the tower can be up to 20% of the total cost of a wind turbine.
- the tower is exposed to great forces and must therefore be designed with high strength.
- prestressed concrete structures take into account the fact that concrete has a low tensile strength but a high compressive strength, so that with the help of rope-like tensioning elements, which are regularly made of steel, the structure is, as it were, prestressed with compressive forces applied to the concrete in order to at least partially compensate tensile forces in the concrete.
- Prestressed concrete towers for wind turbines of the type mentioned at the outset are used commercially by the company Enercon, D-26607 Aurich, for example on wind turbines of the E-33 type.
- the rope-like prestressing steel elements for prestressing the tower are anchored at one end in the foundation and at the other end in the upper area of the tower. So-called tensioning pockets are provided in the area of the foundation, with the aid of which tensile forces can be applied to the prestressing steel elements for prestressing the tower.
- a disadvantage of the known prestressed concrete towers is that considerable tensile forces are applied to the concrete in the area of the foundation, which consists of concrete. In view of the low tensile strength of concrete already described, only limited prestressing forces can therefore be applied to the prestressing steel elements.
- the object of the invention is to provide a prestressed concrete tower and a wind power plant with a prestressed concrete tower which can withstand the high forces and can also be produced in a relatively simple manner.
- the invention solves the problem in a prestressed concrete tower of the type mentioned in that the prestressing steel element is fixed by means of tension pockets arranged on the tower.
- tension pockets By arranging tension pockets in the area of the tower and not on the foundation, significant tensile forces in the concrete in the area of the foundation can be avoided.
- the clamping pockets arranged on the tower are easily accessible, so that the prestressing steel elements are easy to use during assembly Tensile forces can be applied.
- the clamping pockets are preferably arranged in the area of the tower above the foundation, so that they are particularly easily accessible for assembly.
- the invention achieves the object in accordance with a further aspect or an advantageous further development in a prestressed concrete tower of the type mentioned at the outset in that a loop of the prestressing steel element is arranged in the region of the foundation. If a loop is formed in the area of the foundation, it can be anchored to the foundation over a large area and the surface pressures and the applied stresses in the foundation can be kept small.
- the loop of the prestressing steel element is fixed to the foundation by means of slack steel elements arranged in the region of the foundation.
- the strength of the tower is further increased and higher bracing forces can be applied.
- the slack steel elements preferably run within the loop of the prestressing steel elements and are arranged essentially horizontally in the foundation.
- tensioning pockets are arranged at a tensioning station which has a recess formed in the tower.
- the tensioning station and the recess formed in the concrete of the tower are preferably accessible from the interior of the tower, since stairs or lifts are usually installed there and protection against the weather is guaranteed.
- An advantageous design also results from the fact that at least one prestressing steel element extends from the prestressing station in the direction of the upper end and a loop of the prestressing steel element is formed in the upper end region and / or that at least one prestressing steel element extends from the prestressing station in the direction of the foundation and in the foundation a loop is formed.
- all prestressing steel elements can be prestressed centrally from the prestressing station.
- the loops are firmly anchored in the concrete in the foundation or in the upper end section of the tower.
- tensioning station is characterized in that the tensioning pockets of the tensioning steel element extending upwards are arranged below the tensioning pockets of the tensioning steel element extending downward, since only compressive forces occur in the concrete in the area between the tensioning pockets.
- each clamping pocket has an abutment arranged at the clamping station and an anchor element which is fixedly connected to the prestressing steel element and is supported on the abutment, so that large tensile forces can be absorbed.
- the abutment can be poured into the concrete and made of steel, for example, to withstand high surface pressures between the anchor element and the abutment.
- Figure 1 shows a wind turbine according to the invention with a prestressed concrete tower according to the invention in a schematic representation
- Figure 2 is a sectional view through the tower at location A-A;
- Figure 3 is a schematic representation of an inventive
- the wind turbine 1 shown schematically in FIG. 1 has a tower 2 designed as a prestressed concrete tower with a foundation 4, one on top of the Tower on the 2 rotatably mounted nacelle 6, a rotor 8 rotatably mounted on the nacelle 6 with a plurality of rotor blades 10 and an electric generator located inside the nacelle 6.
- the wind forces acting on the rotor blades 10 cause the rotor 8 to rotate and drive the generator (not shown) to generate electrical energy.
- the tower 2 and the foundation 4 consist essentially of concrete, in which rope-like prestressing steel elements 12, 14 (FIG. 3) are cast. As shown in FIG. 2 in particular, the prestressing steel elements 12, 14 run in the ring-shaped tower 2. They are evenly distributed over the entire cross section according to FIG. 2 in order to apply tensile forces to the concrete and to brace it.
- Two clamping pockets 16, 18 of a prestressing steel element 12 are arranged diametrically opposite one another and connected to the two end sections of a prestressing steel element 1 2.
- a loop 20 of the prestressing steel element 1 2 is formed, which is cast into the foundation 4 of concrete and connects the two sections of the prestressing steel element 1 2 running in the tower 2.
- a multiplicity of horizontally running slack steel elements 22 are cast into the foundation 4 in order to ensure additional fixing of the loop and thus the prestressing steel elements 12 in the foundation 4 and to increase the overall strength of the prestressed concrete tower.
- the slack steel elements 22 can run in several levels in the foundation 4.
- the prestressing steel elements 15 extending upwards in the direction of the nacelle 6 are also anchored to the tower 2 by means of tensioning pockets 24, 26, wherein the clamping pockets 24, 26 are arranged below the clamping pockets 16, 18, which fix the lower prestressing steel elements 1 2 to the tower 2.
- the upper ends (not shown) of the upwardly extending prestressing steel elements 14 are either also fastened to the tower 2 with the aid of tensioning pockets (not shown) or likewise each run in a loop which corresponds to the loop 20 of the lower prestressing steel elements 12 in an upper section of the Tower 2 is formed.
- the clamping pockets 16, 18, 24, 26 are formed at a central clamping station 28, which is preferably arranged in the lower region of the tower 2, but also at other locations on the tower 2, for example approximately in the middle between the foundation 4 and the nacelle can be.
- the tensioning station 28 has a recess (not shown in detail) formed in the concrete of the tower 2, so that the tensioning pockets 16, 18, 24, 26 are accessible from the interior 3 of the tower 2. With the help of the clamping pockets large tensile forces can be applied to the prestressing steel elements 1 2, 14.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wind Motors (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2001256160A AU2001256160A1 (en) | 2000-06-29 | 2001-02-22 | Prestressed concrete tower for a wind energy installation, and wind energy installation |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10031683.2 | 2000-06-29 | ||
| DE10031683A DE10031683A1 (de) | 2000-06-29 | 2000-06-29 | Spannbetonturm für eine Windenergieanlage sowie Windenergieanlage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002001025A1 true WO2002001025A1 (de) | 2002-01-03 |
Family
ID=7647205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2001/001999 Ceased WO2002001025A1 (de) | 2000-06-29 | 2001-02-22 | Spannbetonturm für eine windenergieanlage sowie windenergieanlage |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2001256160A1 (de) |
| DE (1) | DE10031683A1 (de) |
| WO (1) | WO2002001025A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2872843A1 (fr) | 2004-07-12 | 2006-01-13 | Electricite De France | Procede de construction d'un mat longitudinal en beton, element tubulaire pour sa mise en oeuvre et mat obtenu |
| EP2253782A1 (de) | 2009-05-19 | 2010-11-24 | Pacadar S.A. | Stützstruktur einer Windturbine und Verfahren zum Aufrichten der Stützstruktur |
| US9021757B2 (en) | 2010-02-01 | 2015-05-05 | Conelto Aps | Tower construction and a method for erecting the tower construction |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT2935719T (pt) | 2012-12-18 | 2017-11-14 | Wobben Properties Gmbh | Dispositivo de ancoragem, dispositivo tensor, aerogerador e processo para o tensionamento por tração de armaduras de pré-esforço num dispositivo de ancoragem |
| DE102018131443A1 (de) | 2018-12-07 | 2020-06-10 | Wobben Properties Gmbh | Fundamentanordnung, Adapterelement, Spannvorrichtung und Turm einer Windenergieanlage sowie Verfahren zum Vorspannen eines Turms einer Windenergieanlage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR932413A (fr) * | 1946-08-13 | 1948-03-22 | Poteaux de transport de force ou autre destination, d'une conception nouvelle, en béton ou autre matériau | |
| GB698424A (en) * | 1949-11-03 | 1953-10-14 | Stup Procedes Freyssinet | Improvements in or relating to reinforced concrete pylons |
| WO1986002689A1 (en) * | 1984-10-31 | 1986-05-09 | R.F.D. Consultants Pty. Ltd. | A modular utility pole |
| EP0960986A2 (de) * | 1998-05-27 | 1999-12-01 | Wilfried Arand | Verfahren und Vorrichtung zum Herstellen von hohen, hohlen, turmartigen Bauwerken von zweihundert Metern Höhe und mehr, insbesondere von Türmen für Windkraftanlagen |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1440024A (de) * | 1965-04-09 | 1966-05-27 | ||
| US4389825A (en) * | 1980-08-28 | 1983-06-28 | T. Y. Lin International | Prestressed concrete pressure vessels with increased pressure-retaining capability |
| FR2545130B1 (fr) * | 1983-04-27 | 1985-09-20 | Precontrainte Ste Fse | Dispositif d'ancrage d'un cable de precontrainte en un point intermediaire d'un ouvrage en beton |
| DD291102A5 (de) * | 1989-12-28 | 1991-06-20 | Bmk Ingenieurhochbau Berlin,De | Verfahren und vorrichtung zur befestigung von maschinen, geruesten und anderen konstruktionen |
| DE4015093A1 (de) * | 1990-05-11 | 1991-11-14 | Emil Bonato | Zwischenanker fuer schleuderbetonformen zur herstellung von rohrfoermigen spannbetonkoerpern |
| DE19528999C2 (de) * | 1995-08-07 | 2000-01-05 | Pfleiderer Verkehrstechnik | Verbindung von Spannbetonelementen und Verfahren hierzu |
| DE19539748A1 (de) * | 1995-10-26 | 1997-04-30 | Dyckerhoff & Widmann Ag | Spannbetonbauteil |
-
2000
- 2000-06-29 DE DE10031683A patent/DE10031683A1/de not_active Ceased
-
2001
- 2001-02-22 WO PCT/EP2001/001999 patent/WO2002001025A1/de not_active Ceased
- 2001-02-22 AU AU2001256160A patent/AU2001256160A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR932413A (fr) * | 1946-08-13 | 1948-03-22 | Poteaux de transport de force ou autre destination, d'une conception nouvelle, en béton ou autre matériau | |
| GB698424A (en) * | 1949-11-03 | 1953-10-14 | Stup Procedes Freyssinet | Improvements in or relating to reinforced concrete pylons |
| WO1986002689A1 (en) * | 1984-10-31 | 1986-05-09 | R.F.D. Consultants Pty. Ltd. | A modular utility pole |
| EP0960986A2 (de) * | 1998-05-27 | 1999-12-01 | Wilfried Arand | Verfahren und Vorrichtung zum Herstellen von hohen, hohlen, turmartigen Bauwerken von zweihundert Metern Höhe und mehr, insbesondere von Türmen für Windkraftanlagen |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2872843A1 (fr) | 2004-07-12 | 2006-01-13 | Electricite De France | Procede de construction d'un mat longitudinal en beton, element tubulaire pour sa mise en oeuvre et mat obtenu |
| EP2253782A1 (de) | 2009-05-19 | 2010-11-24 | Pacadar S.A. | Stützstruktur einer Windturbine und Verfahren zum Aufrichten der Stützstruktur |
| WO2010134029A2 (es) | 2009-05-19 | 2010-11-25 | Pacadar S.A. | Estructura de soporte para aerogeneradores y procedimiento para erigir la estructura de soporte |
| EP2631393A1 (de) | 2009-05-19 | 2013-08-28 | Pacadar S.A. | Turm für eine Windturbine |
| EP2631394A1 (de) | 2009-05-19 | 2013-08-28 | Pacadar S.A. | Stützstruktur für eine Windturbine |
| US9021757B2 (en) | 2010-02-01 | 2015-05-05 | Conelto Aps | Tower construction and a method for erecting the tower construction |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2001256160A1 (en) | 2002-01-08 |
| DE10031683A1 (de) | 2002-01-24 |
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