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DE10308176A1 - Trellis/grating tower for a wind-energy plant has four corner posts of steel sections interlinked by means of cross-struts of steel sections - Google Patents

Trellis/grating tower for a wind-energy plant has four corner posts of steel sections interlinked by means of cross-struts of steel sections Download PDF

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Publication number
DE10308176A1
DE10308176A1 DE2003108176 DE10308176A DE10308176A1 DE 10308176 A1 DE10308176 A1 DE 10308176A1 DE 2003108176 DE2003108176 DE 2003108176 DE 10308176 A DE10308176 A DE 10308176A DE 10308176 A1 DE10308176 A1 DE 10308176A1
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DE
Germany
Prior art keywords
struts
tower
steel sections
corner posts
cross
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.)
Withdrawn
Application number
DE2003108176
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German (de)
Inventor
Uwe Hinz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Senvion GmbH
Original Assignee
Repower Systems SE
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
Application filed by Repower Systems SE filed Critical Repower Systems SE
Priority to DE2003108176 priority Critical patent/DE10308176A1/en
Publication of DE10308176A1 publication Critical patent/DE10308176A1/en
Withdrawn legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02Structures made of specified materials
    • E04H12/08Structures made of specified materials of metal
    • E04H12/10Truss-like structures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D13/00Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/90Mounting on supporting structures or systems
    • F05B2240/91Mounting on supporting structures or systems on a stationary structure
    • F05B2240/912Mounting on supporting structures or systems on a stationary structure on a tower
    • F05B2240/9121Mounting on supporting structures or systems on a stationary structure on a tower on a lattice tower
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/728Onshore wind turbines

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wind Motors (AREA)

Abstract

A tower (10) has four corner posts (11) (one not visible on the drawing), between which there are diverse horizontal (12) and diagonal (13) cross-struts, in order to give the tower the necessary load-bearing capacity. The structure of the corner posts has a girder that interlinks two flanks.

Description

Die vorliegende Erfindung betrifft einen Gittermastturm für eine Windenergieanlage.The present invention relates to a lattice tower for a wind turbine.

Bekannte Gittermasttürme weisen in der Regel vier Eckstiele auf, die durch Querverstrebungen, ähnlich einem Fachwerk, miteinander verbunden sind, wobei die Eckstiele und die Verstrebungen aus einem L-Profil hergestellt sind.Known lattice tower towers usually four corner posts on, which are made by cross struts, similar to one Truss, are connected to each other, the corner posts and the Struts are made from an L-profile.

Ein Nachteil der bekannten Gittermasttürme besteht darin, daß L-Profile nur bis zu einer bestimmten Schenkellänge serienmäßig hergestellt werden. Die größten handelsüblichen L-Profile weisen maximal eine Schenkellänge von 280 mm auf. Die handelsüblichen Wandstärken sind ebenfalls begrenzt. Aufgrund der vorgegebenen Schenkellänge und Wandstärke ist auch die Knicklänge und das Widerstandsmoment von den handelsüblichen L-Profilen begrenzt.A disadvantage of the known lattice tower towers exists in that L-profiles can only be mass-produced up to a certain leg length. The largest commercially available L-profiles have a maximum leg length of 280 mm. The standard ones wall thickness are also limited. Due to the given leg length and wall thickness also the kink length and the section modulus is limited by the commercially available L-profiles.

Aufgrund der begrenzenden Eigenschaften der handelsüblichen L-Profile ergeben sich Gittertürme für Windkraftanlagen mit großer Grundfläche. So beträgt zum Beispiel bei einen Turm mit einer Höhe von 110 m die Grundfläche ca. 20 × 20 m.Due to the limiting properties of the commercial L-profiles result in lattice towers for wind turbines with great Floor space. So is for example, for a tower with a height of 110 m, the base area approx. 20 × 20 m.

Es ergibt sich außerdem das Problem, daß der Gitterturm zur Kompensation der geringen Knicklänge der Standard L-Profile sehr viele Verstrebungen zwischen den Eckstielen enthalten muß, um eine genügend hohe Tragfähigkeit für die auftretenden Lasten einer Windenergieanlage aufweisen zu können Die Aufgabe der vorliegenden Erfindung ist es, einen Gitterturm zu schaffen, der eine deutlich geringere Grundfläche als bekannte Gittertürme aufweist.There is also the problem that the lattice tower to compensate for the short kink length of the standard L-profiles must contain a lot of struts between the corner stems in order to be sufficiently high Load capacity for the to have occurring loads of a wind turbine The object of the present invention is to create a lattice tower, which has a significantly smaller footprint than known lattice towers.

Gelöst wird die Aufgabe mit einem Gitterturm der die Merkmale des Anspruchs 1 aufweist.The task is solved with one Lattice tower having the features of claim 1.

Der erfindungsgemäße Gitterturm weist mindestens drei Eckstiele auf, die mittels Verstrebungen miteinander verbunden sind, wobei die Eckstiele und/oder die Verstrebungen aus einem Formstahl bestehen, dessen Profil mindestens zwei Flanken aufweist, wobei das Profil der Eckstiele weiterhin mindestens einen Träger aufweist, der die beiden Flanken miteinander verbindet.The lattice tower according to the invention has at least three corner posts connected by struts the corner posts and / or the struts are made of a shaped steel, whose profile has at least two flanks, the profile the corner stems also have at least one support that supports the two flanks connects with each other.

Der erfindungsgemäße Gitterturm bietet den Vorteil, daß das Profil durch das Vorsehen eines zusätzlichen Trägers steifer ausgebildet ist, wodurch sich stärkere Eckstiele mit einer deutlich verbesserten Knicklänge ergeben. Durch den Einsatz der stärkeren Eckstiele minimiert sich für den Gitterturm die Grundfläche und es werden deutlich weniger Verstrebungen erforderlich um die gewünschte Tragfähigkeit des Turms zu erreichen.The lattice tower according to the invention offers the advantage that this Profile is made stiffer by the provision of an additional beam, making itself stronger Corner handles with a significantly improved kink length result. Because of the engagement the stronger Corner posts are minimized for the lattice tower the base and significantly fewer struts are required to achieve the desired Load capacity of the To reach the tower.

Durch die Reduzierung der Verstrebungen wird weiterhin vorteilhaft auch die Anzahl der erforderlichen Verschraubungen reduziert, so daß auf diese Weise auch der Montageaufwand beim Aufstellen des Gitterturms reduziert wird.By reducing the struts the number of screw connections required is also advantageous reduced so that on this also means the assembly effort when setting up the lattice tower is reduced.

Weiterhin bietet es den Vorteil, daß der Kontrollaufwand bzw. die Wartung des Gitterturmes nach seiner Aufstellung ebenfalls sehr viel geringer ausfällt.It also has the advantage that the Inspection effort or the maintenance of the lattice tower after its erection is also much less.

In einer vorteilhaften Ausgestaltung der Erfindung kann gemäß Anspruch 2 das Profil aller oder eines Teils der Verstrebungen weiterhin mindestens einen Träger aufweisen, wobei der Träger so angeordnet ist, daß er die beiden Flanken miteinander verbindet. Diese Ausgestaltung des Profils der Verstrebungen bietet den Vorteil, daß auch die Verstrebungen eine größere Knicklänge aufweisen und somit eine weitere Reduzierung der vorzusehenden Verstrebungen erzielt wird.In an advantageous embodiment the invention can according to claim 2 the profile of all or part of the struts continues at least one carrier have, the carrier is arranged so that it connects the two flanks. This configuration of the The profile of the struts offers the advantage that the struts also have a have a greater kink length and thus a further reduction in the struts to be provided is achieved.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung können die Flanken und der Träger so zueinander angeordnet sein, daß sie ein Spundwandprofil bilden. Die Ausbildung des Profils als Spundwandprofil bietet den Vorteil, daß es sich dabei um einen gängigen Formstahl handelt, der in verschiedenen Ausgestaltungen hergestellt wird und somit eine große Auswahl bzgl. der Abmessungen bietet.In a further advantageous embodiment of the Invention can the flanks and the beam be arranged to each other so that they form a sheet pile profile. The formation of the profile as sheet pile wall profile offers the advantage that it a common one Form steel deals, which is produced in various configurations becomes a big one Selection regarding the dimensions offers.

Im folgenden soll ein Ausführungsbeispiel des erfindungsgemäßen Gitterturms anhand von Zeichnungen erläutert werden. Es zeigen:In the following an embodiment of the lattice tower according to the invention explained using drawings become. Show it:

1 Gitterturm gemäß dem Stand der Technik. 1 Lattice tower according to the prior art.

2 Gitterturm gemäß der vorliegenden Erfindung 2 Lattice tower according to the present invention

3 Draufsicht auf einen horizontalen Schnitt durch den Gitterturm gemäß 2 3 Top view of a horizontal section through the lattice tower according to 2

Die 1 zeigt einen Gitterturm 10 gemäß dem Stand der Technik. Der Turm 10 weist 4 Eckstiele 11 auf, wobei ein Eckstiel nicht sichtbar ist. Zwischen den Eck stielen 11 sind diverse Horizontalverstrebungen 12 und Diagonalverstrebungen 13 angeordnet, um dem Turm die notwendige Tragfähigkeit zu geben. Zum Zwecke der Übersichtlichkeit wurden nicht alle dargestellten Verstrebungen mit entsprechenden Referenznummern gekenzeichnet.The 1 shows a lattice tower 10 according to the state of the art. The tower 10 has 4 corner handles 11 with a corner post not visible. Stalk between the corners 11 are various horizontal struts 12 and diagonal struts 13 arranged to give the tower the necessary load-bearing capacity. For the sake of clarity, not all of the struts shown have been marked with corresponding reference numbers.

Die 2 zeigt einen Gitterturm 20 gemäß der vorliegenden Erfindung, wobei auch dieser Gitterturm vier Eckstiele 21 aufweist. Zwischen den Eckstielen 21 sind diverse Diagonalverstrebungen 22 angeordnet, um dem Turm die Tragfähigkeit zu geben. Zum Zwecke der Übersichtlichkeit wurden auch hier nicht alle dargestellten Verstrebungen mit entsprechenden Referenznummern gekennzeichnet.The 2 shows a lattice tower 20 according to the present invention, this lattice tower also having four corner posts 21 having. Between the corner stems 21 are various diagonal braces 22 arranged to give the tower the load capacity. For the sake of clarity, not all of the struts shown have been identified with corresponding reference numbers.

Bei der 2 handelt es sich um eine graphische Darstellung, die auf der Grundlage von Tragfähigkeitsberechnungen unter Verwendung von Spundwandprofilen erstellt wurde. Aufgrund der Berechnungen ergibt sich ein Gittermastturm der bei einer Höhe von 110 m eine Grundfläche von 10 × 10 m aufweist. Die durchgeführten Berechnungen zeigen, daß sich eine deutliche Reduzierung der Grundfläche bei Verwendung von Spundwandprofilen gegenüber dem Stand der Technik ergibt.In the 2 is a graphical representation that was created on the basis of load capacity calculations using sheet piling profiles. Based on the calculations, a lattice mast tower has a base area of 10 × 10 m at a height of 110 m. The calculations carried out show that there is a significant reduction in the base area when using sheet piling profiles compared to the prior art.

Die 3 zeigt eine Draufsicht auf einen horizontalen Schnitt durch den, in der 2 dargestellten Gitterturm. In der 3 ist erkennbar, daß die vier Eckstiele 31 aus einem Spundwandprofil bestehen, wobei das Profil aus einem Träger 32 und zwei Flanken 33 besteht. Zwischen den Eckstielen sind die Diagonalverstrebungen 22 angeordnet, die an ihren Kreuzungspunkten miteinander verbunden sind.The 3 shows a plan view of a horizontal section through the, in the 2 shown lattice tower. In the 3 it can be seen that the four corner stems 31 best from a sheet pile profile hen, the profile from a beam 32 and two flanks 33 consists. The diagonal braces are between the corner posts 22 arranged, which are interconnected at their crossing points.

Claims (3)

Gitterturm (20) für eine Windenergieanlage mit mindestens drei Eckstielen (21) die mittels Verstrebungen (22) miteinander verbunden sind, wobei die Eckstiele (21) und/oder die Verstrebungen (22) aus einem Formstahl bestehen, dessen Profil mindestens zwei Flanken (33) aufweist, dadurch gekennzeichnet, daß das Profil der Eckstiele (21) weiterhin mindestens einen Träger (32) aufweist, der die beiden Flanken (33) miteinander verbindet.Lattice tower ( 20 ) for a wind turbine with at least three corner posts ( 21 ) using struts ( 22 ) are connected to each other, the corner posts ( 21 ) and / or the struts ( 22 ) consist of a shaped steel whose profile has at least two flanks ( 33 ), characterized in that the profile of the corner posts ( 21 ) at least one carrier ( 32 ) which has the two flanks ( 33 ) connects with each other. Gitterturm (20) für eine Windenergieanlage, dadurch gekennzeichnet, daß das Profil aller oder eines Teil der Verstrebungen (22) weiterhin mindestens einen Träger (32) aufweist, der die beiden Flanken (33) miteinander verbindet.Lattice tower ( 20 ) for a wind turbine, characterized in that the profile of all or part of the struts ( 22 ) at least one carrier ( 32 ) which has the two flanks ( 33 ) connects with each other. Gitterturm für eine Windenergieanlage nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Flanken (33) und der Träger (32) so zueinander angeordnet sind, daß sie ein Spundwandprofil bilden.Lattice tower for a wind turbine according to claim 1 and 2, characterized in that the flanks ( 33 ) and the carrier ( 32 ) are arranged to each other so that they form a sheet pile profile.
DE2003108176 2003-02-25 2003-02-25 Trellis/grating tower for a wind-energy plant has four corner posts of steel sections interlinked by means of cross-struts of steel sections Withdrawn DE10308176A1 (en)

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DE2003108176 DE10308176A1 (en) 2003-02-25 2003-02-25 Trellis/grating tower for a wind-energy plant has four corner posts of steel sections interlinked by means of cross-struts of steel sections

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DE2003108176 DE10308176A1 (en) 2003-02-25 2003-02-25 Trellis/grating tower for a wind-energy plant has four corner posts of steel sections interlinked by means of cross-struts of steel sections

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007039957A1 (en) 2007-08-23 2009-02-26 Seeba Technik Gmbh triangular profile
DE102008018852A1 (en) 2008-04-15 2009-10-22 Seeba Technik Gmbh Lattice mast structure for framework-tower structures of wind turbine, has joints of closed common profile determined so that joints are arranged in alignment with common profile of corner post, and partial profiles exhibiting preset angle
WO2010121630A2 (en) * 2009-04-22 2010-10-28 Ruukki Dortmund Gmbh Tower for a wind power plant

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007039957A1 (en) 2007-08-23 2009-02-26 Seeba Technik Gmbh triangular profile
US8522502B2 (en) 2007-08-23 2013-09-03 Rautaruukki Oyj Pole construction for framework towers of wind power plants
DE102008018852A1 (en) 2008-04-15 2009-10-22 Seeba Technik Gmbh Lattice mast structure for framework-tower structures of wind turbine, has joints of closed common profile determined so that joints are arranged in alignment with common profile of corner post, and partial profiles exhibiting preset angle
WO2010121630A2 (en) * 2009-04-22 2010-10-28 Ruukki Dortmund Gmbh Tower for a wind power plant
WO2010121630A3 (en) * 2009-04-22 2011-05-26 Ruukki Dortmund Gmbh Tower for a wind power plant
US8474212B2 (en) 2009-04-22 2013-07-02 Rautaruukki Oyj Tower for a wind power plant

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