US20140311058A1 - Precast concrete floating structure for supporting a wind turbine - Google Patents

Precast concrete floating structure for supporting a wind turbine Download PDF

Info

Publication number
US20140311058A1
US20140311058A1 US14/310,384 US201414310384A US2014311058A1 US 20140311058 A1 US20140311058 A1 US 20140311058A1 US 201414310384 A US201414310384 A US 201414310384A US 2014311058 A1 US2014311058 A1 US 2014311058A1
Authority
US
United States
Prior art keywords
floating structure
wind turbine
concrete
structure according
reinforcement bars
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.)
Abandoned
Application number
US14/310,384
Other languages
English (en)
Inventor
Climent Molins Borrell
Josep REBOLLO PERICOT
Alexis CAMPOS HORTIGÜELA
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.)
Universitat Politecnica de Catalunya UPC
Original Assignee
Universitat Politecnica de Catalunya UPC
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 Universitat Politecnica de Catalunya UPC filed Critical Universitat Politecnica de Catalunya UPC
Assigned to UNIVERSITAT POLITECNICA DE CATALUNYA reassignment UNIVERSITAT POLITECNICA DE CATALUNYA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CAMPOS HORTIGUELA, ALEXIS, MOLINS BORELL, CLIMENT, REBOLLO PERICOT, Josep
Publication of US20140311058A1 publication Critical patent/US20140311058A1/en
Priority to US14/795,288 priority Critical patent/US9238896B2/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B77/00—Transporting or installing offshore structures on site using buoyancy forces, e.g. using semi-submersible barges, ballasting the structure or transporting of oil-and-gas platforms
    • B63B77/10—Transporting or installing offshore structures on site using buoyancy forces, e.g. using semi-submersible barges, ballasting the structure or transporting of oil-and-gas platforms specially adapted for electric power plants, e.g. wind turbines or tidal turbine generators
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/04—Fastening or guiding equipment for chains, ropes, hawsers, or the like
    • B63B21/08—Clamping devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B5/00—Hulls characterised by their construction of non-metallic material
    • B63B5/14—Hulls characterised by their construction of non-metallic material made predominantly of concrete, e.g. reinforced
    • B63B5/16—Hulls characterised by their construction of non-metallic material made predominantly of concrete, e.g. reinforced monolithic
    • 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
    • F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/442—Spar-type semi-submersible structures, i.e. shaped as single slender, e.g. substantially cylindrical or trussed vertical bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2231/00—Material used for some parts or elements, or for particular purposes
    • B63B2231/60—Concretes
    • 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
    • E02B2017/0039—Methods for placing the offshore structure
    • 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
    • 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
    • F05B2240/95—Mounting on supporting structures or systems offshore
    • 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
    • Y02E10/727—Offshore wind turbines
    • 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 main object of the invention relates to a floating structure made of concrete for supporting high power wind turbines. It is encompassed in the scope of renewable energies, specifically in harnessing wind energy in the sea, proposing the use thereof in maritime areas having a great depth of more than one hundred and fifty meters.
  • Patent US20060165493 describes a design formed by 3 different flotation points with an active ballast fluid transfer system between them which involves significant maintenance costs, in addition to an increased cost due to the existence of the several flotation points.
  • the basic construction material is steel, some of them (WO2010110329 and WO2010110330) limiting the use of concrete to the production of the ballast weight.
  • the platform object of the present invention is based on a precast floating SPAR platform made of concrete having cylindrical and frustoconical geometries.
  • the floating structure is a precast monolithic structure made of reinforced and prestressed concrete comprising a cylindrical lower section finished at a lower end thereof by a hemispheric cap, which contains ballast and acts as a flotation element, and an upper section, located above sea level, which acts as a support for a wind turbine or another element.
  • the prestressed reinforced concrete of the precast monolithic structure comprises active reinforcement bars which have continuity through said hemispheric cap. Said upper section is finished at an upper end thereof with a steel ring-shaped plate to which said active reinforcement bars are anchored.
  • the precast monolithic structure has cylindrical and frustoconical sections having a total length comprised between 110 and 320 meters, outer diameters comprised between 2.8 and 15.2 meters and thicknesses comprised between 20 and 100 centimeters.
  • the active reinforcement bars are preferably steel tendons embedded in the concrete and anchored at different points of the structure. Said steel tendons are preferably inserted in protective shields.
  • the wind turbine or another element is preferably attached to the steel ring-shaped plate which is attached in turn to the precast monolithic structure by upper anchors of the active reinforcement bars, so that the steel ring-shaped plate performs a double function as an attachment for the wind turbine or another element and as a distribution plate for upper anchors of the active reinforcement bars.
  • the precast monolithic structure is moored to the seabed by cables having additional elements made of a low density material which compensate for at least 50% of the weight of said cables when submerged.
  • the structure allows assuring stability, adopting maximum keel angles of the order of 4° to 10°, which can be borne perfectly by the existing wind turbines.
  • System stability is based on the generation of a stabilizing torque due to the distance between the center of buoyancy (CdC) and the center of gravity (CdG) of the system.
  • CdC center of buoyancy
  • CdG center of gravity
  • the structure is formed by a hollow, cylindrical lower section which acts as a flotation element and another cylindrical and/or frustoconical upper section, located above sea level, which acts as a support for the wind turbine.
  • a hollow, cylindrical lower section which acts as a flotation element
  • another cylindrical and/or frustoconical upper section located above sea level, which acts as a support for the wind turbine.
  • the base of the lower section has a hemispheric shape so that the hydrostatic pressure assures that the concrete is well confined, minimizing the bending stresses and allowing an optimal travel for protective shields for the active reinforcing bars.
  • the attachment between wind turbine and the concrete structure is carried out by end crowning the structure with a steel ring-shaped plate which allows connecting same and the rotating crown of the nacelle of the wind turbine. Additionally, this plate acts as a distribution plate for the prestressing of the envisaged active reinforcing bars, such that the concrete-plate-wind turbine attachment is perfectly assured.
  • the structure is fixed to the seabed by means of cable lines, tending to prevent to the maximum possible extent deformation due to their own weight which produces the typical catenary shape.
  • This effect is envisaged to be solved by reducing the weight of the cables when submerged by means of added elements thereon, such that the actual weight of the cables is partially compensated for with the flotation produced by the added elements.
  • the effect to be achieved is to limit the vertical component on the structure induced by the stress to which the cable is subjected. Additionally, by minimizing the deformation of the cable due to its own weight, higher horizontal rigidity is achieved at the fixing points of the structure, minimizing their movements.
  • This property can be achieved by means of new polymer materials which, unlike the proposed system, have little-known long-term rheological characteristics and properties with respect to fatigue stresses of the material, so the proposal is innovative from the point of view of attaining certain interesting properties of new materials, avoiding the uncertainty posed by same.
  • the proposed foundations must be of the ballast type with own weight or suction piles, depending on the geotechnical characteristics of the earth forming the seabed.
  • the actual diameter of the flotation cylinder allows having a stabilizing torque for stabilizing the twisting movement of the structure through the torques introduced by the attachment of the cables thereto.
  • the proposed system will allow greater ease for construction in series with respect to the conventional steel structures, due to the versatility of the large scale production of concrete elements, reducing the cost per MW installed in a very significant manner.
  • the structure can be towed throughout the service life thereof for maintenance or relocation purposes.
  • FIG. 1 shows a diagrammatic side view of the floating concrete structure for supporting a wind turbine.
  • FIG. 2 shows a diagrammatic detail view of a hemispheric section ending the float section.
  • FIG. 3 shows a diagrammatic view of a plate for structure-wind turbine connection.
  • the precast concrete floating structure for supporting a wind turbine of the present invention comprises, according to one embodiment, a precast monolithic structure made of reinforced and prestressed concrete including cylindrical and frustoconical sections having a total length comprised between 110 and 320 meters.
  • the precast monolithic structure comprises a cylindrical lower section 13 finished at a lower end thereof by a hemispheric cap 18 and an upper section 12 .
  • the lower section 13 contains ballast and acts as a flotation element, and the upper section 12 is located above sea level and acts as a support for a wind turbine or another element.
  • the precast monolithic structure made of reinforced and prestressed concrete comprises active reinforcement bars constituted by steel tendons which have continuity through said hemispheric cap 18 , and the upper section 12 is finished at an upper end thereof with a steel ring-shaped plate 17 to which said active reinforcement bars are anchored. Said steel tendons are inserted in protective shields.
  • the flotation of the system is assured by means of the cylindrical concrete lower section 13 which has a certain leeway on the average level of the sea surface and which is ballasted by means of adding aggregate and water on the lower portion 14 thereof.
  • the hemispheric cap 18 finishing the cylindrical concrete lower section 13 assures that the concrete in the area works fundamentally under compression and that cracks do not form due to the tensile stresses resulting from possible bending or pulling.
  • the entire structure is outlined by means of using active reinforcement bars so as to assure that the concrete does not decompress throughout its service life in order to prevent cracks and the consequences thereof from the point of view of durability.
  • the dimensions of the structure depend fundamentally on the actions to be applied in each case, being possible to adapt them according to the different needs of one case or another due to their geometric simplicity.
  • the dimensions can vary in a range of diameters of between 5 and 15 meters and a draft of between 80 and 150 meters, with thickness that can vary from 20 to 100 centimeters.
  • the frustoconical upper section 12 can have various heights depending on the wind turbine installed, wind conditions, etc.
  • the diameter thereof is comprised between the diameter of the cylindrical lower section 13 and an upper diameter between 3 and 5 m, depending on the wind turbine model.
  • the cylindrical lower section 13 of the floating structure can be maintained or the diameter can somehow be reduced to attain a structure that is more permeable to the wave effect.
  • the diameter is maintained throughout the entire lower section 13 .
  • the structure is moored to the seabed by means of cable lines 15 arranged symmetrically and with their weight minimized when submerged such that they acquire an almost rectilinear shape instead an obvious catenary shape.
  • the float has a controlled flood and discharge system to enable adjusting both the flotation line and the initial stress in the fixing cables.
  • the fixing in seabed is performed through heavy ballasting elements 16 or suction piles, capable of counteracting the significant vertical and horizontal components induced by the cables in the bed, unlike the typical systems of anchor or less-weighed ballasts.
  • FIG. 2 shows a detail of the hemispheric cap 23 finishing the lower end of the cylindrical lower section of the float.
  • the thickness of the of a hemispheric concrete cap 23 can vary between 30 and 100 cm, which allows giving continuity to steel tendons constituting the active reinforcement bars of the structure and which in turn allows distributing the pressure difference between the hydrostatic load of the water 22 and the inner pressure generated by the ballast 21 in the form of compression through the concrete, eliminating possible bending stresses on the element and therefore eliminating the risk of tractions and cracks.
  • FIG. 3 shows a detail of the structure-wind turbine connection by means of the steel ring-shaped plate 31 mounted at the upper end of the concrete structure 34 .
  • Anchoring elements 32 of reinforcing bars are attached to the steel ring-shaped plate 31 , so that the steel ring-shaped plate 31 is fixed to the concrete structure by means of the prestressing system itself and the steel ring-shaped plate 31 acts as a distribution plate for the anchoring elements 32 .
  • the steel ring-shaped plate 31 has perimetric cantilevered protrusions that allow the connection of the wind turbine 33 , such that a perfect plate-concrete attachment and plate-wind turbine attachment is assured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Paleontology (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Transportation (AREA)
  • Wind Motors (AREA)
  • Foundations (AREA)
US14/310,384 2011-12-23 2014-06-20 Precast concrete floating structure for supporting a wind turbine Abandoned US20140311058A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/795,288 US9238896B2 (en) 2012-12-19 2015-07-09 Floating structure for supporting a wind turbine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ESP201132097 2011-12-23
ES201132097A ES2415767B2 (es) 2011-12-23 2011-12-23 Estructura flotante de hormigón prefabricado para soporte de aerogenerador
PCT/ES2012/070884 WO2013093160A1 (es) 2011-12-23 2012-12-19 Estructura flotante de hormigón prefabricado para soporte de aerogenerador

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2012/070884 Continuation-In-Part WO2013093160A1 (es) 2011-12-23 2012-12-19 Estructura flotante de hormigón prefabricado para soporte de aerogenerador

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/795,288 Continuation-In-Part US9238896B2 (en) 2012-12-19 2015-07-09 Floating structure for supporting a wind turbine

Publications (1)

Publication Number Publication Date
US20140311058A1 true US20140311058A1 (en) 2014-10-23

Family

ID=48667799

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/310,384 Abandoned US20140311058A1 (en) 2011-12-23 2014-06-20 Precast concrete floating structure for supporting a wind turbine

Country Status (7)

Country Link
US (1) US20140311058A1 (ja)
EP (1) EP2796713B1 (ja)
JP (1) JP6139559B2 (ja)
KR (1) KR20140128958A (ja)
ES (1) ES2415767B2 (ja)
PT (1) PT2796713T (ja)
WO (1) WO2013093160A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10487803B2 (en) * 2015-12-08 2019-11-26 Aerodyn Consulting Singapore Pte Ltd Offshore wind farm

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9238896B2 (en) 2012-12-19 2016-01-19 Universitat Politècnica De Catalunya Floating structure for supporting a wind turbine
ES2545553B1 (es) 2014-11-26 2016-06-24 Saitec, S.A. Plataforma flotante de aprovechamiento de energía eólica
CN109137958B (zh) * 2018-10-24 2020-09-29 北京天杉高科风电科技有限责任公司 预应力海上单桩基础及其安装方法
KR102239547B1 (ko) 2021-01-12 2021-04-14 주식회사 에이스이앤티 해상 풍력발전 부유체의 밸러스팅 방법

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225500A (en) * 1962-07-17 1965-12-28 Richard P Martter Prestressed tendon anchor means
US3537268A (en) * 1967-08-09 1970-11-03 Hans Christer Georgii Marine station and method for fabricating the same

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR498033A (fr) * 1918-04-20 1919-12-24 William Green Perfectionnements dans la construction de navires, bateaux et autres vaisseaux analogues
NL6405951A (ja) * 1964-05-28 1965-11-29
JPS5546068U (ja) * 1978-09-20 1980-03-26
JPS5853637B2 (ja) * 1979-10-29 1983-11-30 三井造船株式会社 コンクリ−ト製の浮体構造物
JPS5940194U (ja) * 1982-09-08 1984-03-14 シバタ工業株式会社 浮体係留装置
WO1998021415A1 (en) * 1996-11-12 1998-05-22 H.B. Zachry Company Precast, modular spar system
JP4743953B2 (ja) * 2000-12-18 2011-08-10 三井造船株式会社 浮体式風力発電装置及びその設置方法
AU2003201272A1 (en) 2003-01-06 2004-07-29 Vestas Wind Systems A/S Wind turbine with floating foundation
JP4476096B2 (ja) * 2004-10-22 2010-06-09 株式会社竹中工務店 大型高層風力発電所の建設方法
NO20052704L (no) * 2005-06-06 2006-12-07 Norsk Hydro As Flytende vindturbininstallasjon.
JP5022797B2 (ja) * 2007-07-11 2012-09-12 五洋建設株式会社 洋上風力発電のスパー型浮体構造およびその製造方法
ES2324276B8 (es) 2009-03-17 2013-11-08 Investigacion Y Desarrollo De Energias Renovables Marinas, S.L. Plataforma flotante para la extraccion de energia eolica
JP5330048B2 (ja) 2009-03-24 2013-10-30 戸田建設株式会社 洋上風力発電設備の施工方法
JP5274329B2 (ja) 2009-03-24 2013-08-28 戸田建設株式会社 洋上風力発電設備及びその施工方法
CN103282274B (zh) * 2010-11-04 2017-03-29 缅因大学系统理事会 浮置混合复合材料风力涡轮机平台和塔架系统

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225500A (en) * 1962-07-17 1965-12-28 Richard P Martter Prestressed tendon anchor means
US3537268A (en) * 1967-08-09 1970-11-03 Hans Christer Georgii Marine station and method for fabricating the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10487803B2 (en) * 2015-12-08 2019-11-26 Aerodyn Consulting Singapore Pte Ltd Offshore wind farm

Also Published As

Publication number Publication date
WO2013093160A1 (es) 2013-06-27
ES2415767B2 (es) 2014-06-04
JP2015503060A (ja) 2015-01-29
KR20140128958A (ko) 2014-11-06
EP2796713B1 (en) 2017-03-22
JP6139559B2 (ja) 2017-05-31
ES2415767A1 (es) 2013-07-26
PT2796713T (pt) 2017-07-03
EP2796713A4 (en) 2015-12-23
EP2796713A1 (en) 2014-10-29

Similar Documents

Publication Publication Date Title
US9238896B2 (en) Floating structure for supporting a wind turbine
EP2428443B1 (en) Installation method and recovery method for offshore wind turbine
EP2837554A1 (en) Partially floating marine platform for offshore wind-power, bridges and marine buildings, and construction method
US20140311058A1 (en) Precast concrete floating structure for supporting a wind turbine
KR20160023660A (ko) 연안 설비에서 터빈 타워 및 서브스테이션 또는 유사한 구성요소들을 위한 수중용 능동적 지지구조물
CN102162256A (zh) 海上地基基础
CN102995651B (zh) 锚杆重力式陆上/海上风机基础
CN103255752A (zh) 支撑海上风机、桥梁、海洋建筑物的浮力支撑固定平台
CN113653601A (zh) 一种半潜式漂浮式风机装置及系统
CN114855865A (zh) 一种锚固于岩基海床的张紧式风机基础及布置方法
CN105714819A (zh) 一种新型预应力锚索外锚头多重防护装置及其固定方法
WO2013044977A1 (en) A wall element system for an offshore power storage facility
US20230131179A1 (en) Offshore Wind Turbine Foundation
GB2505192A (en) A pile sleeve connection for a monopole foundation
CN115735060A (zh) 适用于海上风电行业的由钢筋混凝土制成的浮动平台
US11920559B2 (en) Floating platform for high-power wind turbines
CN217870596U (zh) 一种锚固于岩基海床的张紧式风机基础
US20230113147A1 (en) Floating offshore wind turbine substructure
EP4314549A1 (en) Foundation for an offshore wind turbine
CN212715000U (zh) 在深水中的钢围堰定位系统
CN105401564A (zh) 将潮流能发电装置固定于水底的施工方法和潮流发电装置
CN114348199A (zh) 一种能抵抗风浪影响的海上风电基础平台
AU2012313196A1 (en) Partially floating marine platform for offshore wind-power, bridges and marine buildings, and construction method
CN111764418A (zh) 在深水中的钢围堰定位系统
CN107585269B (zh) 一种海水立体油罐平台、系统及其建造方法

Legal Events

Date Code Title Description
AS Assignment

Owner name: UNIVERSITAT POLITECNICA DE CATALUNYA, SPAIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MOLINS BORELL, CLIMENT;REBOLLO PERICOT, JOSEP;CAMPOS HORTIGUELA, ALEXIS;REEL/FRAME:033230/0598

Effective date: 20140624

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION