EP2743401B1 - Structure porteuse pour installations offshore - Google Patents

Structure porteuse pour installations offshore Download PDF

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Publication number
EP2743401B1
EP2743401B1 EP13188169.0A EP13188169A EP2743401B1 EP 2743401 B1 EP2743401 B1 EP 2743401B1 EP 13188169 A EP13188169 A EP 13188169A EP 2743401 B1 EP2743401 B1 EP 2743401B1
Authority
EP
European Patent Office
Prior art keywords
support structure
struts
strut
individual
entire length
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.)
Not-in-force
Application number
EP13188169.0A
Other languages
German (de)
English (en)
Other versions
EP2743401A3 (fr
EP2743401A2 (fr
Inventor
Emilio Reales Bertomeo
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.)
Maritime Offshore Group GmbH
Original Assignee
Maritime Offshore Group 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
Application filed by Maritime Offshore Group GmbH filed Critical Maritime Offshore Group GmbH
Priority to PL13188169T priority Critical patent/PL2743401T3/pl
Publication of EP2743401A2 publication Critical patent/EP2743401A2/fr
Publication of EP2743401A3 publication Critical patent/EP2743401A3/fr
Application granted granted Critical
Publication of EP2743401B1 publication Critical patent/EP2743401B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/027—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto steel structures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys
    • E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/006—Platforms with supporting legs with lattice style supporting legs
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0091—Offshore structures for wind turbines

Definitions

  • the present invention relates to a support structure for offshore installations, in particular for wind turbines.
  • Such support structures or foundations are used to safely anchor wind turbines on the seabed.
  • wind turbines have not only been installed "on shore", ie on land, but increasingly offshore, for example in so-called offshore wind farms in the North and Baltic Seas.
  • the offshore wind turbines are exposed to extreme conditions. For example, they are anchored at a depth of 20 to 60 meters with the help of a foundation.
  • the foundation which can also be called a supporting structure, is exposed to high mechanical and chemical loads as well as ocean currents.
  • Various types of offshore foundations are known, such as monopile, jacket, tripod, tripile or bucket constructions.
  • the present invention relates primarily but not exclusively to a so-called jacket construction. This is a truss structure made of steel.
  • a supporting structure is for example in DE 20 2011 101 599 U1 disclosed by the present applicant.
  • the support structure disclosed therein has a plurality, preferably six anchored in the seabed, in particular tubular piles and connectable to the piles, composed of a plurality of rods, in particular steel tubes, composite framework structure.
  • the individual bars of the framework structure are by means of various Nodes, such as cross nodes, center nodes, and foot nodes, are interconnected.
  • the disclosed support structure comprises superimposed and interconnected segments, wherein at least one of the segments is arranged rotated to a next segment about a vertical axis.
  • the number and orientation of the segments depends on the external conditions, such. B. the water depth or the location of the support structure.
  • the individual segments of the disclosed support structure preferably consist of vertical outer struts, which are connected to each other with horizontally and / or obliquely oriented transverse struts.
  • the connection between the struts is preferably realized by mounting pins.
  • WO 2014/147481 discloses a support structure.
  • the support structure of this document discloses the features of the preamble of claim 1.
  • the known solutions for such offshore support structures require to ensure a high load capacity high material and manufacturing costs.
  • the strut or pipe arrangements of the known support structures and the high wall thicknesses of the struts or tubes used lead to a high welding costs and a large demand for manpower.
  • the increased use of material leads to an increased weight of the supporting structure, which has a negative influence not only on the assembly but also on the transport and installation on the open sea. Consequently, in order to be able to economically provide offshore support structures with ever higher load capacity, a new solution is needed that meets the increasing demands of the fast-growing offshore industry.
  • Object of the present invention is therefore to provide a supporting structure for offshore installations, in particular wind turbines, which can be produced with relatively little effort and despite high ease of manufacture and relatively low production costs has a high load capacity.
  • the invention solves the problem by means of anchored to the seabed support structure with the features of claim 1, which is used to hold offshore installations, such as wind turbines, use.
  • the support structure of the invention consists of a plurality of interconnected struts, wherein at least two extending over the substantially entire length of the support structure extending individual struts are arranged substantially parallel to each other.
  • a single strut in this case represents a straight strut, which absorbs and transmits substantially vertical forces in the mounted state.
  • a single strut is preferably not composed of a plurality of separate strut segments. By assembling separate strut segments is meant, for example, the welding or bonding of pipe sections.
  • the individual struts can be made of different materials and manufactured with different manufacturing processes.
  • the struts may also have circular or angular cross-sections.
  • the individual struts have a substantially same length as the support structure, which is defined as the distance between the lower end and the upper end of the erected support structure.
  • the interconnected struts have a substantially truss-like structure.
  • the support structure according to the invention has further struts connected to each other and to the struts extending over the substantially entire length of the support structure, which struts are connected and arranged in their entirety such that they are one Form framework structure.
  • the at least two individual struts extending over the substantially entire length of the support structure in the erected state of the support structure extend primarily in a substantially vertical direction or are opposite a vertical plane inclined at an angle between 0 degrees and up to about 30 degrees inwards relative to a central axis of the support structure.
  • the individual struts can absorb high normal forces and vertical loads and thus support the weight of a mounted wind turbine against the seabed.
  • Decisive for the maximum absorbable forces in the axial direction of the struts is the cross section of the struts. It can thus be achieved by a small number of struts with large individual cross-sections as well as with a relatively increased number of struts with small individual cross-sections, a high load capacity of the support structure.
  • the individual struts extending over the substantially entire length of the support structure preferably have a uniform wall thickness.
  • the use of pipes with uniform wall thickness offers advantages in terms of manufacturing costs and manufacturing time of a support structure.
  • the individual struts extending over the substantially entire length of the support structure are not composed of individual tube segments but consist of a continuous tube.
  • the use of such a long, non-composite tube eliminates costly and time-consuming welding. This significantly reduces the manufacturing cost of such a support structure.
  • non-welded tube elements have higher strength properties than tube elements composed of individual segments and are substantially less susceptible to corrosion due to the absence of additional welds.
  • the individual struts extending over the substantially entire length of the support structure are designed as spiral-seam-welded steel tubes and / or longitudinally welded steel tubes.
  • Spiral tubes are made of hot strip or sheet metal, which is helically shaped in a former with a constant radius of curvature and welded to the abutting strip edges.
  • the strip width determines the later diameter of the tube and the plate length the later tube length.
  • a flat sheet is first bent in a plurality of forming steps in a U-shape and bent in a later manufacturing step by an O-shape to a round slotted tube.
  • the resulting longitudinal slot is finally welded by the eponymous longitudinal seam.
  • the support structure has a plurality of strut pairs arranged uniformly over the circumference in the outer region. Particularly preferred is the arrangement of three, four, five or six strut pairs over the peripheral circumference of the support structure. Due to the uniform distribution over the peripheral circumference, the strut pairs, depending on the number used, each staggered 120 degrees, 90 degrees, 72 degrees or 60 degrees about the vertical center axis of the support structure.
  • the cross section of the support structure can have both an angular, for example, a triangular, square, pentagonal or hexagonal, as well as a circular cross-section.
  • a strut pair is arranged on each outer edge of the support structure. In the view of the cross section of the support structure is thus arranged in each corner a strut pair.
  • the support structure has a polygonal outer contour, preferably this is designed as a support structure with square, three, five or hexagonal base.
  • the support structure is characterized in that the two struts of a strut pair at its lower end converge V-shaped and thus form a bottom-side conclusion.
  • the V-shaped convergence is achieved in that the two struts are each slightly bent in the direction of the other strut of the strut pair and thus converge to a common point.
  • the two struts of a strut pair preferably converge in such a way that the cross section of the strut pair at the bottom end has a circular outer contour whose diameter matches that of the individual struts.
  • the V-shaped convergence of the two struts of a strut pair requires in addition to the slight buckling also forming and / or a partial separation of circumferential strut sections.
  • the respective joints of the individual struts of a strut pair are welded together in the region where they converge in a V-shape.
  • a foot element is arranged on each bottom end.
  • Each foot element of the support structure is connectable to a pole anchored in the seabed.
  • a foot element takes on the V-shaped converging conclusion of a strut pair.
  • the support structure according to the invention has a plurality, preferably three, four, five or six, on the seabed anchorable foot elements.
  • the foot elements are arranged substantially parallel to each other.
  • the tubular lower portions of the individual foot elements, which are connectable to the piles disposed in the seabed, are preferably aligned in the vertical direction.
  • the support structure is further advantageously further developed in that the two substantially mutually parallel struts of a strut pair can be connected by means of one or more substantially horizontally arranged connecting struts.
  • the connecting struts are, for example, short pipe sections or adapters, which are welded at their end faces, each with a strut of a strut pair.
  • the struts of a strut pair are connected together and aligned with each other at the same time.
  • the number of connecting struts between the struts of a strut pair depends on the struts used and the height of the support structure.
  • the shape and length of the connecting struts is identical for all strut pairs of a support structure. This leads to a cost reduction and enables a fast standardized assembly.
  • the strut pairs are connectable by substantially diagonal diagonal struts.
  • all strut alignments that can be realized between a horizontal and a vertical strut alignment can be regarded as diagonal.
  • the diagonal struts give the supporting structure its structural stability. The diagonal struts take up only small forces compared to the strut pairs.
  • diagonal struts are crossed in an X pattern.
  • the arranged in an X-pattern diagonal struts are arranged between two arranged on the same side adjacent struts of different strut pairs.
  • such X-pattern structures have a central crest node, on which four diagonal struts are arranged.
  • two diagonal struts are preferably aligned in alignment.
  • a support structure has several, preferably two, three, four or five, X-pattern structures on each side. Due to the preferably frusto-conical outer contour of the support structure, the X-pattern structures become smaller from the lower end to the upper end of the support structure.
  • every X-pattern structure is based on the same middle cross node. On the one hand, this leads to a homogeneous distribution of force within the supporting structure and, on the other hand, to a simple, automatable and cost-effective production of such X-pattern structures.
  • the strut pairs are connected by substantially horizontally extending longitudinal struts.
  • the longitudinal struts are preferably arranged in the lower quarter of the support structure. They serve to stabilize the support structure and take essentially horizontally acting Forces up. In the support of the initiated loads against the seabed, the horizontal longitudinal struts play a minor role.
  • the diagonal struts and / or longitudinal struts have a smaller diameter than the over the substantially entire length of the support structure extending individual struts. Since the diagonal struts and the longitudinal struts are primarily responsible for the stability of the supporting structure and the loads acting on the supporting structure are absorbed by the individual struts extending over the substantially entire length of the supporting structure, the diagonal struts and / or longitudinal struts can be made smaller in comparison become.
  • the diagonal struts and / or the longitudinal struts of the support structure are designed as HFI (high frequency induction welding) pipes and / or MSH (Mannesmann Stahlbau Hohlprofil) pipes. These tubes offer themselves by a sufficient carrying capacity and a low price for use as diagonal struts and / or longitudinal struts.
  • HFI high frequency induction welding
  • MSH Mannesmann Stahlbau Hohlprofil
  • the support structure has a triangular, square, pentagonal, hexagonal or round cross section.
  • an embodiment of the support structure according to the invention which has an interface for mounting a tower of a wind turbine.
  • This interface constitutes an assembly platform and distributes the loads acting on the support structure preferably in equal parts to the individual struts extending over the substantially entire length of the support structure.
  • the struts are at least partially coated with a coating.
  • the coating is preferably designed as a plastic coating and counteracts the aging and decomposition of the struts. If the struts are designed as welded steel pipes, the corrosion-promoting environment for uncoated pipes and welds quickly sets in motion a decomposition process which must be counteracted to ensure the load-bearing capacity of the support structure. Coatings based on polyurethane and epoxy resin have proven themselves for use in offshore support structures and effectively counteract the corrosion process.
  • FIG. 1 Perspective view of a support structure according to the invention
  • FIG. 1 shows a variant of an inventive support structure (1).
  • the support structure (1) has a square base, and the width decreases constantly from the lower end to the upper end of the support structure (1).
  • At the four outer edges of the support structure (1) are each two over the substantially entire length of the support structure extending parallel to each other aligned individual struts (2a, 2b). These absorb a large amount of vertical loads during operation.
  • the mutually parallel individual struts (2a, 2b) form a strut pair (4a, 4b, 4c, 4d) at each of the four outer edges of the support structure (1).
  • the four strut pairs (4a, 4b, 4c, 4d) are arranged uniformly over the circumference of the support structure (1) by the square base surface of the support structure (1).
  • the individual struts (2a, 2b) are formed as spiral seam or longitudinal seam-welded tubes.
  • the individual struts (2a, 2b) of the strut pairs (4a, 4b, 4c, 4d) are not composed of individual pipe sections, but represent continuous individual pipes and have over their entire length a uniform wall thickness.
  • the two individual struts (2a, 2b) of the strut pairs (4a, 4b, 4c, 4d) converge at their lower ends in a V shape to form bottom-side terminations (6a, 6b, 6c, 6d).
  • the foot elements (8a, 8b, 8c, 8d) arranged on the bottom-side terminations (6a, 6b, 6c, 6d) are arranged on piles (not shown) anchored in the seabed in order to fix the support structure (1) on the seabed.
  • the foot elements (8a, 8b, 8c, 8d) are arranged substantially parallel to each other.
  • a plurality of short connecting struts (10) connect the two mutually parallel individual struts (2a, 2b) of a strut pair (4a, 4b, 4c, 4d).
  • the strut pairs (4a, 4b, 4c, 4d) are interconnected by diagonal struts (12) and longitudinal struts (16).
  • the diagonal struts (12) are arranged in an X-pattern structure between two individual struts (2) of two adjoining strut pairs (4a, 4b, 4c, 4d).
  • the various X-pattern structures of the support structure (1) each have a structurally identical cross knot (14) in their middle.
  • the X pattern structures differ only in the length of the diagonal struts (12) connected to the cross knot (14).
  • the four longitudinal struts (16) form the lowest connection between the individual strut pairs (4a, 4b, 4c, 4d) and are arranged between the bottom-side terminations (6a, 6b, 6c, 6d) and the lowermost X-pattern structures.
  • the diagonal struts (12) as well as the longitudinal struts (16) of the support structure (1) have a smaller diameter than the individual struts (2a, 2b) of the four strut pairs (4a, 4b, 4c, 4d).
  • the diagonal struts (12) and / or the longitudinal struts (16) can be designed as HFI (high frequency induction welding) pipes and / or MSH (Mannesmann Stahlbau Hohlprofil) pipes.
  • an interface (18) for receiving a tower of a wind turbine is arranged.
  • the interface (18) evenly distributes the vertical loads of a wind turbine tower to the four strut pairs (4a, ab, 4c, 4d).

Claims (14)

  1. Structure porteuse (1) pour installations offshore, en particulier éoliennes, à ancrer au fond de la mer comportant une pluralité d'entretoises reliées les unes aux autres, formant une structure sensiblement de type treillis, dans laquelle
    au moins deux entretoises individuelles (2a, 2b) s'étendant sur sensiblement toute la longueur de la structure porteuse (1) sont agencées de manière sensiblement parallèle l'une à l'autre,
    caractérisée en ce que respectivement deux entretoises individuelles (2a, 2b) s'étendant sur sensiblement toute la longueur de la structure porteuse (1) forment une paire d'entretoises (4a, 4b, 4c, 4d),
    que la structure porteuse (1) présente un contour extérieur polygonal, dans laquelle une paire d'entretoises (4a, 4b, 4c, 4d) est agencée à chaque bord extérieur de la structure porteuse (1).
  2. Structure porteuse (1) selon la revendication 1,
    caractérisée en ce que les au moins deux entretoises individuelles (2a, 2b) s'étendant sur sensiblement toute la longueur de la structure porteuse (1) sont agencées à l'état monté de la structure porteuse (1) de préférence verticalement ou en formant un angle de 0 degré à 30 degrés par rapport à un plan vertical.
  3. Structure porteuse (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que les entretoises individuelles (2a, 2b) présentent sensiblement une épaisseur de paroi uniforme.
  4. Structure porteuse (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que les entretoises individuelles (2a, 2b) s'étendant sur sensiblement toute la longueur de la structure porteuse (1) sont réalisées en tant que tubes adjacents, de préférence non assemblés.
  5. Structure porteuse (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que les entretoises individuelles (2a, 2b) s'étendant sur sensiblement toute la longueur de la structure porteuse (1) sont réalisées en tant que tubes en acier soudés à cordon en spirale et/ou tubes en acier soudés à cordon longitudinal.
  6. Structure porteuse (1) selon la revendication 1,
    caractérisée en ce que la structure porteuse (1) présente plusieurs, de préférence trois, quatre, cinq ou six, paires d'entretoises (4a, 4b, 4c, 4d) agencées à l'extérieur de manière uniforme sur la périphérie.
  7. Structure porteuse (1) selon l'une quelconque des revendications 1 à 6,
    caractérisée en ce que les deux entretoises d'une paire d'entretoises (4a, 4b, 4c, 4d) convergent à leur extrémité inférieure en forme de V en une fermeture côté sol (6a, 6b, 6c, 6d).
  8. Structure porteuse (1) selon la revendication 7,
    caractérisée en ce qu'un élément de pied (8a, 8b, 8c, 8d), qui peut être relié à un poteau ancré dans le fond de la mer, est agencé au niveau de chaque fermeture côté sol (6a, 6b, 6c, 6d).
  9. Structure porteuse (1) selon la revendication 8,
    caractérisée par plusieurs, de préférence trois, quatre, cinq ou six éléments de pied (8a, 8b, 8c, 8d) agencés de manière sensiblement parallèle l'un à l'autre pouvant être ancrés au fond de la mer.
  10. Structure porteuse (1) selon l'une quelconque des revendications 1 à 9,
    caractérisée en ce que les deux entretoises individuelles (2a, 2b) agencées de manière sensiblement parallèle l'une à l'autre d'une paire d'entretoises (4a, 4b, 4c, 4d) peuvent être reliées au moyen d'une ou plusieurs entretoises de liaison (10) agencées de manière sensiblement horizontale.
  11. Structure porteuse (1) selon l'une quelconque des revendications 1 à 10,
    caractérisée en ce que les paires d'entretoises (4a, 4b, 4c, 4d) peuvent être reliées par des entretoises diagonales (12) s'étendant sensiblement en diagonale.
  12. Structure porteuse (1) selon la revendication 11,
    caractérisée en ce que deux entretoises diagonales (12) croisées en X peuvent être agencées entre deux entretoises (2) adjacentes agencées sur le même côté de différentes paires d'entretoises (4a, 4b, 4c, 4d).
  13. Structure porteuse (1) selon l'une quelconque des revendications 1 à 12,
    caractérisée en ce que les paires d'entretoises (4a, 4b, 4c, 4d) peuvent être reliées par des entretoises longitudinales (16) s'étendant de manière sensiblement horizontale.
  14. Structure porteuse (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que les entretoises de la structure porteuse (1) sont revêtues au moins en partie avec un revêtement, en particulier avec un revêtement en plastique.
EP13188169.0A 2012-10-10 2013-10-10 Structure porteuse pour installations offshore Not-in-force EP2743401B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13188169T PL2743401T3 (pl) 2012-10-10 2013-10-10 Struktura nośna dla urządzeń offshore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202012009681.8U DE202012009681U1 (de) 2012-10-10 2012-10-10 Tragstruktur für Offshore Anlagen

Publications (3)

Publication Number Publication Date
EP2743401A2 EP2743401A2 (fr) 2014-06-18
EP2743401A3 EP2743401A3 (fr) 2015-10-21
EP2743401B1 true EP2743401B1 (fr) 2018-07-04

Family

ID=49356243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13188169.0A Not-in-force EP2743401B1 (fr) 2012-10-10 2013-10-10 Structure porteuse pour installations offshore

Country Status (3)

Country Link
EP (1) EP2743401B1 (fr)
DE (1) DE202012009681U1 (fr)
PL (1) PL2743401T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012014828A1 (de) * 2012-07-27 2014-01-30 Repower Systems Se Aufgelöste Tragwerksstruktur für eine Windenergieanlage sowie Verfahren zur Herstellung einer aufgelösten Tragwerksstruktur für eine Windenergieanlage
DE102022001012A1 (de) 2022-03-23 2023-09-28 Martin Dufter Stützeinrichtung und Verfahren zum Herstellen derselben

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Publication number Priority date Publication date Assignee Title
US2940265A (en) * 1956-01-30 1960-06-14 Shell Oil Co Offshore platform and method of erecting the same
US3592012A (en) * 1969-09-23 1971-07-13 Texaco Inc Laterally reinforced offshore platform
GB1411747A (en) * 1971-11-03 1975-10-29 Cleveland Bridge And Eng Support structure
GB1551384A (en) * 1976-07-05 1979-08-30 Vogel R Off-shore platform and a method of assembly thereof
IT1172824B (it) * 1983-03-30 1987-06-18 Tecnomare Spa Metodo di costruzione, trasporto ed installazione in loco di una struttura reticolare marina per alti fondali
GB9321078D0 (en) 1993-10-13 1993-12-01 Kvaerner Earl & Wright Offshore tower structure and method of installation
EP2067913A2 (fr) * 2007-12-04 2009-06-10 WeserWind GmbH Structure de grille d'une construction offshore, en particulier d'une éolienne offshore
US8037658B2 (en) * 2009-01-08 2011-10-18 Kundel Industries, Inc. Structural members for forming various composite structures
NO330475B1 (no) * 2009-06-16 2011-04-26 Olav Olsen As Dr Techn Vindturbinfundament samt fremgangsmate for oppbygging av et vindturbinfundament for variabelt vanndyp
CN102249161A (zh) * 2010-05-21 2011-11-23 上海三一科技有限公司 一种起重机多主弦杆臂架
DE202011101599U1 (de) 2011-05-12 2011-09-23 Emilio Reales Bertomeo Offshore-Fundament für Windenergieanlagen

Non-Patent Citations (1)

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Title
None *

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Publication number Publication date
EP2743401A3 (fr) 2015-10-21
DE202012009681U1 (de) 2014-01-13
EP2743401A2 (fr) 2014-06-18
PL2743401T3 (pl) 2019-02-28

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