GB2507248A - Conical transition piece between the tower and jacket of a wind turbine - Google Patents

Conical transition piece between the tower and jacket of a wind turbine Download PDF

Info

Publication number
GB2507248A
GB2507248A GB1214362.4A GB201214362A GB2507248A GB 2507248 A GB2507248 A GB 2507248A GB 201214362 A GB201214362 A GB 201214362A GB 2507248 A GB2507248 A GB 2507248A
Authority
GB
United Kingdom
Prior art keywords
transition piece
tower
conical transition
cone
plate
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Withdrawn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
GB1214362.4A
Other versions
GB201214362D0 (en
Inventor
David Aviram
Stephen Stuart-Matthews
Wangwen Zhao
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.)
Offshore Design Engineering Ltd
Original Assignee
Offshore Design Engineering Ltd
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 Offshore Design Engineering Ltd filed Critical Offshore Design Engineering Ltd
Priority to GB1214362.4A priority Critical patent/GB2507248A/en
Publication of GB201214362D0 publication Critical patent/GB201214362D0/en
Publication of GB2507248A publication Critical patent/GB2507248A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E02B17/0004—Nodal points
    • 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
    • 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
    • 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
    • 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
    • E04H2012/006—Structures with truss-like sections combined with tubular-like sections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/912—Mounting on supporting structures or systems on a stationary structure on a tower
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/912—Mounting on supporting structures or systems on a stationary structure on a tower
    • F05B2240/9121—Mounting on supporting structures or systems on a stationary structure on a tower on a lattice tower
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/95—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

Abstract

A transition piece for efficiently transferring structural loads from a tower of a wind turbine generator to its foundation consists of a conical central body 3 connected to a top plate 2, middle plate 5, lower plate 7, further connected by shear and gusset plates 4, and a series of legs 6, that connects to a foundation structure. The tower joint ring 1 may have a filleted edge 2 for reduction of stress concentration.

Description

Conical Transition Piece The invention relates to a structural entity for transferring loads between a jacket and a Tower of a wind turbine.
Off-shore wind-turbine support structures consist of a subsea jacket with battered legs that are anchored by means of piles to the sea-bed and a Tower to which the turbine is attached. The Tower and jacket are connected by means of a transition piece.
Current methods for connecting the Jacket to the Tower consist of a variety of structural forms that consist of welded steel plates, braces, castings and tubular members. The Transition Piece must transfer bending, compressive, tensile and torque forces without attracting high is stress concentrations at key structural joints. Such constraints become critical when a jacket is installed in deep waters and a large diameter wind turbine with a tall Tower must be used. For resisting the higher inertia loads, the jacket base must be relatively large and reduce in plan size to the Tower diameter above sea level, while attracting minimal stress concentration at key structural joints. Present Transition Pieces are heavy and complex structural forms that attract high stress concentration at key structural joints, thereby limiting their fatigue life.
It is an aim of the present invention to provide a solution of a type that is not made in a conventional manner and that will overcome the limitations mentioned above.
An alternative solution for a Transition Piece that provides a structural connection between a wind-turbine Tower and a support jacket is the main aim of this invention.
Accordingly, this invention provides for a Conical Transition Piece, characterized in that an inverted central cone has an upper flange for attachment to a wind-turbine Tower and a lower assembly of welded plates for connection to the jacket battered legs. The assembly of welded plates consists of gusset plates and shear plates that join the battered legs to the cone. The shear plates are bounded by end-plates which are also welded to the cone and provide torsional rigidity to the assembly.
Such structural arrangement enables efficient transfer of loads from Tower to battered legs within the foot-print of the Tower base. This feature leads to significant reduction of stress concentration at the tower bottom to annular ring region, due to the elimination of radial protruding load bearing io members outside the Tower foot-print.
In one preferred embodiment of a Conical Transition Piece, an annular ring which has a flange with bolt holes for connecting to the Tower base, forms part of the upper surface of the cone. The cone's external surface is has a series of radial gusset plates that transfers loads from the cone to the middle plate. The middle plate is connected to the top of the battered legs. The cone lower extremity has radial shear plates which are connected to both battered legs and a lower annular plate. Thus, load transfer is made from the Tower base to the annular ring, via the cone and assembly of plates and into the jacket battered legs.
One embodiment of the invention will be described solely by way of example and with reference to the accompanying drawings in which: Fig. 1 shows a general external view of a Conical Transition Piece; Fig. 2 shows a vertical sectional view of a Conical Transition Piece; Fig. 3 shows a mid-plan sectional view of a Conical Transition Piece; Fig. 4 shows a bottom-plan sectional view of a Conical Transition Piece; Fig. 1 shows a Conical Transition Piece assembly. The assembly consists of Tower joint ring (1) with filleted transition ring (2) connected to cone (3) and gusset plates (4) which, in turn, are connected to middle plate (5). Middle plate (5) is connected to battered legs (6) which are connected to lower plate (7).
Fig. 2 shows a vertical sectional view of the Conical Transition Piece assembly. The view shows the connection of the cone (3) to io battered legs (6) via gusset plates (4) and shear plates (8) into battered legs (6).
Fig.3 shows a mid-plan sectional view of a Conical Transition Piece assembly. The view shows the cone (3) with gusset plates (4) Is connected to mid plate (5).
Fig.4 shows a lower plan sectional view of a Conical Transition Piece assembly. The view shows the cone (3) connected to battered legs (6) via shear plate (8) and lower plate (7)

Claims (5)

  1. Claims 1. Conical Transition Piece assembly consisting of at least one Tower joint ring (1) with cone (3) characterised in that the cone (3) is of a size that enables partial placement of the mid plate (5) with attached battered legs (6) within the footprint of the Tower joint ring (1).
  2. 2. Conical Transition Piece assembly according to claim 1 characterised in io that any number of battered legs (6) can be attached to the mid plate (5) and shear plates (8).
  3. 3. Conical Transition Piece assembly according to claims 1&2 characterised in that a load path between Tower joint ring (1) and Is battered legs (6) is made via cone (3) to gusset plate (4) and shear plates (8) which are bounded and connected to mid plate (5) and bottom plate (7).
  4. 4. Conical Transition Piece assembly according to claims 1 to 3 characterised in that the Tower joint ring (1) has a filleted edge (2) for reduction of stress concentration due to load transfer into gusset plate (4) and cone (3).
  5. 5. Conical Transition Piece assembly according to claims 1 to 4 characterised in that the mid plate (5) and bottom plate (7) are connected to battered legs (6) for transfer of torsional loads.
GB1214362.4A 2012-08-13 2012-08-13 Conical transition piece between the tower and jacket of a wind turbine Withdrawn GB2507248A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1214362.4A GB2507248A (en) 2012-08-13 2012-08-13 Conical transition piece between the tower and jacket of a wind turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1214362.4A GB2507248A (en) 2012-08-13 2012-08-13 Conical transition piece between the tower and jacket of a wind turbine

Publications (2)

Publication Number Publication Date
GB201214362D0 GB201214362D0 (en) 2012-09-26
GB2507248A true GB2507248A (en) 2014-04-30

Family

ID=46981403

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1214362.4A Withdrawn GB2507248A (en) 2012-08-13 2012-08-13 Conical transition piece between the tower and jacket of a wind turbine

Country Status (1)

Country Link
GB (1) GB2507248A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3467204A1 (en) * 2017-10-05 2019-04-10 Notus Energy Plan GmbH & Co. KG Transition piece for connecting an upper tower section with a lower tower section using connecting profiles
WO2019068736A1 (en) * 2017-10-05 2019-04-11 Notus Energy Plan Gmbh & Co. Kg Tower, in particular for a wind turbine
US20190249647A1 (en) * 2016-09-09 2019-08-15 Siemens Gamesa Renewable Energy A/S Transition piece for a wind turbine
CN110925146A (en) * 2019-10-22 2020-03-27 广州文冲船厂有限责任公司 Offshore wind power jacket supporting seat
WO2021110424A1 (en) * 2019-12-02 2021-06-10 Thyssenkrupp Steel Europe Ag Transition piece for a tower of a wind turbine, and tower of a wind turbine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115306647B (en) * 2022-08-03 2023-06-16 中国能源建设集团广东省电力设计研究院有限公司 Novel transition section structure of offshore wind turbine jacket foundation and fatigue calculation method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1813808A2 (en) * 2006-01-31 2007-08-01 REpower Systems AG Wind turbine tower

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1813808A2 (en) * 2006-01-31 2007-08-01 REpower Systems AG Wind turbine tower

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190249647A1 (en) * 2016-09-09 2019-08-15 Siemens Gamesa Renewable Energy A/S Transition piece for a wind turbine
US10767632B2 (en) * 2016-09-09 2020-09-08 Siemens Gamesa Renewable Energy A/S Transition piece for a wind turbine
EP3467204A1 (en) * 2017-10-05 2019-04-10 Notus Energy Plan GmbH & Co. KG Transition piece for connecting an upper tower section with a lower tower section using connecting profiles
WO2019068736A1 (en) * 2017-10-05 2019-04-11 Notus Energy Plan Gmbh & Co. Kg Tower, in particular for a wind turbine
CN110925146A (en) * 2019-10-22 2020-03-27 广州文冲船厂有限责任公司 Offshore wind power jacket supporting seat
WO2021110424A1 (en) * 2019-12-02 2021-06-10 Thyssenkrupp Steel Europe Ag Transition piece for a tower of a wind turbine, and tower of a wind turbine

Also Published As

Publication number Publication date
GB201214362D0 (en) 2012-09-26

Similar Documents

Publication Publication Date Title
GB2507248A (en) Conical transition piece between the tower and jacket of a wind turbine
US9194151B2 (en) Transition element for connecting a tower to a jacket
US9410340B2 (en) Plated transition piece
US8607508B2 (en) Stayed connection for wind turbine
EP2662495B1 (en) Wind turbine foundation
EP2290237A2 (en) A load transferring device in a wind turbine support structure
WO2011158095A3 (en) Flange for wind power generators
US20170159260A1 (en) Offshore support structure, offshore tower installation with the offshore support structure and offshore wind power plant with the offshore tower installation
KR20190073162A (en) Gravity type suction anchor and its installation method
EP2510157A2 (en) A structure
US9771700B2 (en) Structures for offshore installations
KR101665979B1 (en) Concrete base of offshore wind substructure and the construction method therefor
US9151437B2 (en) Stand structure
CN202851274U (en) Connection structure for tower and jacket base of offshore wind turbine
CN104975591B (en) A kind of shoe of octagon spud leg
KR101549194B1 (en) The mounting structure and method of offshore wind power generator mono file type
CN207331725U (en) A kind of offshore wind farm engineering steel pile foundation
KR200476725Y1 (en) Support for wind power equipment stabilizer tower
CN206971249U (en) A kind of corner sleeve column jacket assembles wind power foundation
CN204003293U (en) The flange arrangement that a kind of anti-piling is impacted
CN206971248U (en) A kind of isosceles triangle steel pile foundation of offshore wind farm engineering
CN203977444U (en) Triangle basis land breeze electricity tower foundation ring
KR101538720B1 (en) Installing method of offshore wind power plant
CN104047296A (en) Triangular foundation land wind power tower foundation ring
KR102354807B1 (en) Detachable footing-leg connection supported by double rings

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)