WO2010032075A1 - Tour de béton précontraint et d'acier pour éoliennes - Google Patents

Tour de béton précontraint et d'acier pour éoliennes Download PDF

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Publication number
WO2010032075A1
WO2010032075A1 PCT/IB2008/002439 IB2008002439W WO2010032075A1 WO 2010032075 A1 WO2010032075 A1 WO 2010032075A1 IB 2008002439 W IB2008002439 W IB 2008002439W WO 2010032075 A1 WO2010032075 A1 WO 2010032075A1
Authority
WO
WIPO (PCT)
Prior art keywords
tower
concrete
wind generators
segments
wind
Prior art date
Application number
PCT/IB2008/002439
Other languages
English (en)
Spanish (es)
Inventor
Alejandro Cortina-Cordero
Jose Pablo Cortina-Ortega
Jose Pablo Cortina-Cordero
Original Assignee
Alejandro Cortina-Cordero
Jose Pablo Cortina-Ortega
Jose Pablo Cortina-Cordero
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 Alejandro Cortina-Cordero, Jose Pablo Cortina-Ortega, Jose Pablo Cortina-Cordero filed Critical Alejandro Cortina-Cordero
Priority to PCT/IB2008/002439 priority Critical patent/WO2010032075A1/fr
Publication of WO2010032075A1 publication Critical patent/WO2010032075A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • E04H12/08—Structures made of specified materials of metal
    • E04H12/10—Truss-like structures
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/16—Prestressed structures
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines

Definitions

  • This description refers to pre-tensioned concrete towers.
  • it refers to the construction of segmented towers of prestressed concrete to support wind generators.
  • the invention relates to a mixed structure of reinforced and pre-tensioned concrete in combination with a steel structure.
  • Said structures have various disadvantages, the main one of said inconveniences being the permissible height limitation and the cost of steel. Because wind generators offer resistance to wind currents, significant vertical and horizontal loads are generated that produce torsion of the structures. In some cases, said metal structures collapse due to the action of the wind and the weight of the generators.
  • Concrete towers are known for wind generators and other applications made of formwork or sliding formwork, and towers of pre-tensioned concrete are also known.
  • Prestressed concrete is called a concrete which, prior to commissioning, reinforcements are introduced by means of cables or steel wires.
  • the pre-tensioning effort can be transmitted to the concrete in two ways: by means of pre-tensioned reinforcements (usually wires), a method used mostly in prefabricated elements; or by post-tensioned reinforcements (generally strands, cable groups), a method used mostly in castings in situ.
  • pre-tensioned reinforcements usually wires
  • post-tensioned reinforcements generally strands, cable groups
  • the German utility model DE 29809541 U (& EP 0 960 986) describes a sectioned tower of prestressed concrete for wind generators.
  • sections of ring concrete, tapered or frustoconic are manufactured, which are subsequently mounted one on top of the other and joined by prestressing elements. According to this publication, they are able to mount towers of more than one hundred meters high and even more than two hundred meters.
  • MECAL describes a tower for hybrid wind generators which comprises (a) a lower portion of pre-tensioned concrete, sectioned -in ring sections-, and also segmented -the ring sections are formed of several segments-; and (b) a tubular upper portion of steel.
  • This tower has many drawbacks, among which the following are listed:
  • the crane necessarily requires a foothold on the ground, otherwise the tower would collapse when lifting the first pieces. Moreover, the fact that
  • the tower is tapered, it implies the use of a special crane that is capable of varying its diameter with the height. -TO-
  • the inventor also fails to indicate the characteristics of the scaffolding and safety facilities indispensable for the builders to be able to perform the precision bonding of the concrete segments that is required according to the description of WO-2003069099.
  • the Spanish company INNEO21 has filed patent applications for some concepts regarding the construction of prestressed, sectioned and segmented concrete towers.
  • the patent application US-2006156681 A1 (& ES-1058539U) describes a sectioned and segmented concrete tower;
  • Application US-2008040983A1 (& ES 1061396) describes a mold for manufacturing the concrete segments;
  • patent ES-1060629 describes a union between segments by means of horizontal prestressing.
  • Patent application WO-2006111597A1 (& EP-067434514 & ES 2246734A1) of CONCRETE & STEEL also describes a pre-tensioned, sectioned and segmented concrete tower for wind generators.
  • the segments or sections that form the towers are manufactured in a suitable installation for this purpose, and subsequently said segments are transported to the site where the tower is erected. Subsequently each of the tower segments is mounted by means of a crane. Such transportation of the tower segments increases the manufacturing costs of the towers.
  • the segments with which the concrete towers are manufactured are very heavy, consequently, the towers must be manufactured with large amounts of concrete so that they are capable of supporting their own weight. Due to the weight of these concrete segments, their assembly requires large cranes, which results in high construction costs.
  • a first object of the invention is to provide a mixed tower of prestressed concrete and steel.
  • Another object of the invention is to provide a tower with better use of the characteristics of the materials, which give the tower adequate resistance to winds and earthquakes.
  • Another object of the invention is to provide a tower that uses only one type of mold for all the concrete segments used in the tower.
  • Still another object of the invention is to provide an improved system for manufacturing and assembling a pre-tensioned concrete tower.
  • a pre-tensioned concrete tower for wind generators characterized in that it comprises a foundation and a mixed, elongated structure comprising: (a) a concrete structure (20) consisting of leg portions of concrete (21, 22, 23) and consisting of a plurality of circular segments (25) made of reinforced concrete, vertically stacked and joined together, and linked to the foundation by means of prestressing elements; and (b) a metal reinforcement (30), comprising spaced portions of reinforcement (31, 32, 33), on the flat faces of the mixed polygonal cross-sectional structure, which extend along the length of the tower, the reinforcement metallic consists of a plurality of structured metal beams (35), arranged between said concrete leg portions;
  • FIG. 1 illustrates the pre-tensioned concrete tower in accordance with the invention.
  • FIG. 2 illustrates a top plan view of the tower of the present invention.
  • FIG. 3 illustrates a side elevation view of the tower in accordance with the invention.
  • FIG. 4 illustrates an embodiment of the concrete tower with extension.
  • a support tower for a wind power generation system design and construction of a support tower for a wind power generation system, its original construction development, designed to perform in a fast, fast, economical and reliable way, a mixed annular structure of reinforced and pre-tensioned concrete is described. in combination with structural steel.
  • the tower has aesthetics and the slenderness necessary to support the loads to which it will be subjected, such as its own weight, the weight of the generator, the weight and movement of the blades, wind thrust and seismic forces.
  • the height of the structure above the ground level can be preferably variable between 80 and 150 meters, depending on the capacity and type of generator to be used.
  • the geometry of the tower is sized and modulated to meet all the service limit states and final limit states of the various current building regulations.
  • a tower which comprises a body formed by a mixed structure of reinforced, elongated and prestressed concrete, preferably post-tensioned, in combination with structural steel.
  • the section of the tower is variable and decreases depending on its height.
  • a tower which, in elevation, has two sections distinguishable by its geometry: a body having a variable cross section from its base to approximately two thirds of its height; and an extension that has a constant cylindrical section in its upper part that is approximately one third of the total height of the tower.
  • the body (12) of Ia tower (10) has an axisymmetric cross section whose perimeter can be assimilated to a polygon - illustrated as a triangle - with straight parts (16) and rounded corners (14), hereinafter referred to as the polygonal cross section.
  • the polygonal cross-section of the body (12) of the tower (10) decreases as a function of the height of the tower, to form a tapered structure in elevation, that is, it becomes thinner as it gains height.
  • the metal armor (30) of the body (12) consists of an open soul metal structure.
  • the metal reinforcement (30) comprises three spaced portions of reinforcement (31, 32, 33), which extend along the tower in the straight part of the polygonal cross section, between the vertices and form the flat faces of the tower.
  • Each of the portions (31, 32, 33) consists of a plurality of structured beams (35), preferably made of steel.
  • the mixed structure of the tower (10) includes a concrete structure (20) comprising portions of concrete leg (21, 22, 23), spaced apart, which extend along the tower at the vertices of The polygonal cross-section between the reinforcement portions (31, 32, 33) of the metal reinforcement (30) and attached thereto.
  • Each of the concrete leg portions (21, 22, 23) comprises a plurality of circular segments (25) made of reinforced concrete, stacked vertically and pre-tensioned.
  • the metal reinforcement may include curved beams. In this way the "straight" parts of the polygonal sections would then be rounded.
  • the decrease of the polygonal cross section of the tower (10) is achieved by reducing the dimensions of the beams (35) that form the corresponding reinforcement portions (31, 32, 33) of the metal reinforcement (30) until the circular segments (25) converge to become a circular ring.
  • the tower also includes a ring (27) that has the function of flange for the union with the wind generator.
  • the circular segments (25) that form the concrete leg portions of the mixed structure, are prefabricated and mounted on the site.
  • the continuity of the concrete segments (25) is achieved through prestressing elements, such as prestressing cables or strands that are anchored in the foundation of the tower and subsequently placed and tensioned (post-tensioned) inside the segments
  • the circular segments (25) are joined to the metal reinforcement (30) by means of a joint that allows them to work structurally as a single section.
  • the circular segments (25) that make up the concrete structure (20) have the same dimensions and shape.
  • segments of 120 ° are used.
  • the tower will be manufactured with a square, rectangular, pentagonal, hexagonal or any other polygonal configuration, then segments with the necessary angle are used so that said segments converge in a circular ring in the upper portion of the tower, for example , (a) rectangular section, requires four leg portions made from 90 ° segments; (b) pentagonal section, requires five leg portions made from 72 ° segments; etc.
  • the segments In the case of a tower of circular or elliptical cross-section, depending on the number of leg portions to be used, the segments must have the necessary angle to converge on the upper circular ring. In the embodiment illustrated in FIG. 1, 17 short segments are illustrated.
  • each segment can be replaced by longer segments, so that the tower includes, for example, 7 long segments.
  • the dimensions of each segment depend on the design of the tower.
  • a special mold is not required to manufacture each segment of the tower (25).
  • only a single type of mold is used to manufacture all the circular segments (25).
  • not only a physical mold is used, but a plurality of molds having the same characteristics, that is, the same type of mold.
  • the metal reinforcement is assembled by welding and / or screws or bolts, with or without reinforcement elements. So that each and every one of the segments (25) are attached to the metal reinforcement.
  • the beams can be structured to form a particular arrangement, for example a honeycomb structure or an inclined beam structure as shown in FIGS. 1, 3 and 4, where the beams are inclined and join alternating circular segments (25).
  • each circular segment (25) is connected to the adjacent upper and / or lower segment.
  • the preferred polygonal cross section is the triangular section, which exhibits a better performance with respect to the circular, elliptical, square and polygonal cross sections.
  • reinforcement beams joining the segments (25) that are opposite For example, in a tower with 1, 2, 3 and 4 leg portions, in addition to providing beams (metal armor) between adjacent concrete leg portions 1-2, 2-3, 3-4 and 4-1, it is it is necessary to join with beams the segments (25) of the leg portions 1 and 3, as well as 2 and 4.
  • the metal armor is first assembled at the site of the tower.
  • the metal reinforcement then serves to support the prefabricated concrete segments, for the assembly of the tower it is sufficient to use a light crane, it should be mentioned that the weight of the circular segments 25 is approximately 1/6 of the weight of a full-frustoconic ring section of a tower of the prior art. So its handling is facilitated.
  • the molds or formwork can be attached to the metal reinforcement so that the circular segments (25) are successively cast in their final position.
  • a system of formwork or sliding formwork can be used to form integral portions of concrete leg.
  • the tower Once the tower is built and in use, it functions as a tripie (in the case of the realization with three portions of concrete leg).
  • the weight of the tower and the nacelle is distributed between the portions of concrete leg (21, 22, 23) that transmit the loads (weight and vertical loads due to wind) to the foundation, while the metal structure (30 ) holds the leg portions together.
  • the metal reinforcement provides resistance to vertical and horizontal loads, mainly the loads derived from the movement of the blades, the thrust of winds and the seismic forces.
  • the metal reinforcement serves a double purpose: to form a support for the placement of the molds and the casting of the circular segments (25) and to provide structural support for the tower during its operation.
  • the hollow core metal armor (30) allows the passage of air through it and therefore offers less resistance to wind currents and therefore becomes more resistant to wind force.
  • closing covers can be included to close the open spaces of the reinforcement portions (31, 32, 33) of the metal reinforcement. These covers can consist of sheets of steel, aluminum, plastic, Gypsum plaster, concrete or brick and mortar walls.
  • the concrete legs of the concrete structure provide the tower with the necessary resistance to support the weight of the generator, the same weight of the tower and the horizontal loads due to wind and / or seismic action.
  • the tower includes an extension (19).
  • the extension (19) of the tower consists of a cylindrical portion of prestressed concrete.
  • the cylindrical portion may consist of a metal tube.
  • Said extension can be manufactured in one piece, or in segments.
  • a steel cylinder is manufactured from steel sheets, which are in turn rolled and welded.
  • the upper end of the cylindrical extension section includes a ring (28) that serves as a flange for the placement of the wind generator.
  • Said extension (19) consists of a cylindrical member that has a constant diameter up to the maximum height of the tower.
  • the materials used in the design are reinforced and pre-tensioned concrete and / or structural steel.
  • the extension (19) consists of a plurality of cylindrical modules (29) of post-tensioned concrete joined together by means of pre-stress elements, such as cables or strands that are placed (hardened) and pre-tensioned (post-tensioned) inside the walls of the modules (not illustrated).
  • pre-stress elements such as cables or strands that are placed (hardened) and pre-tensioned (post-tensioned) inside the walls of the modules (not illustrated).
  • the cylindrical segments may be manufactured and, in turn, hoisted by means of a crane, placed and attached to the tower by means of pre-stress elements, such as cables or strands that are placed (hardened) and pre-tensioned (post-tensioned) inside the walls of the segments in a manner well known to a person skilled in the art.
  • pre-stress elements such as cables or strands that are placed (hardened) and pre-tensioned (post-tensioned) inside the walls of the segments in a manner well known to a person skilled in the art.
  • the extension can be a tube or duct of square or polygonal section.
  • the molds are conditioned by incorporating the tubes for post-tensioning as well as the necessary accessories, and then a vertical casting is carried out and can be demoulded the next day, so that the molds are used every third day.
  • the number of molds is unlimited and the number of units to be used depends on the magnitude of the work and its construction program.
  • the molding and casting of the concrete circular segments (25) and the assembly and assembly of the tower (10) is carried out at the site according to the following process:
  • the mold for manufacturing Given the precision required for the prefabricated parts, the mold for manufacturing The circular concrete sector is carried out in a workshop following the established design and tolerances, the mold is preferably manufactured based on profiles, plates and sheets of steel and responds to a pre-established modular design according to the height of the tower, in general, the Tower height is designed in circular segments whose height varies between 3 and 15 m.
  • the substructure or foundation of the tower is built on the site.
  • This element is made of reinforced concrete and is sized according to the mechanical characteristics of the soil. In general, this element functions as a "pedestal" of the tower and transmits to the ground the reactions of the same one that occur before seismic and wind solicitations. In this element all the necessary inserts and steps are disposed to subsequently include the pre-strain cables to achieve the continuity of the structure.
  • the metal structure is assembled with the appropriate equipment by moving it in the foundation and joining its parts to complete the pyramid formed by its parts.
  • the towers for wind generators of the present invention are built more quickly and with simpler means compared to the towers of the prior art.
  • the above advantages result in a tower with quality characteristics similar to the towers of
  • a feature of the invention is that the quantity of the materials is used more efficiently. Thanks to the metal parts that are mounted in the first instance with light equipment, it is possible to achieve the geometry and the resistance necessary to mount the concrete segments

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

Abstract

L'invention concerne une tour de béton pour éoliennes, cette tour se caractérisant en ce qu'elle comprend des fondations et une structure de béton et d'acier mélangés composée de: (a) une structure de béton (20), constituée de parties pile de béton s'étendant le long de la tour et comprenant une pluralité de segments circulaires (25) fabriqués en béton renforcé, empilés verticalement et assemblés de façon à être liés entre eux et aux fondations au moyen d'éléments précontraints et, (b) une armature métallique (30) qui comprend des parties d'armature qui s'étendent le long de la tour et qui comprennent une pluralité de poutres métalliques structurées (35), ces parties d'armature étant disposées entre les parties pile de béton et assemblées à celles-ci.
PCT/IB2008/002439 2008-09-19 2008-09-19 Tour de béton précontraint et d'acier pour éoliennes WO2010032075A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2008/002439 WO2010032075A1 (fr) 2008-09-19 2008-09-19 Tour de béton précontraint et d'acier pour éoliennes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2008/002439 WO2010032075A1 (fr) 2008-09-19 2008-09-19 Tour de béton précontraint et d'acier pour éoliennes

Publications (1)

Publication Number Publication Date
WO2010032075A1 true WO2010032075A1 (fr) 2010-03-25

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PCT/IB2008/002439 WO2010032075A1 (fr) 2008-09-19 2008-09-19 Tour de béton précontraint et d'acier pour éoliennes

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2369304A1 (es) * 2011-10-10 2011-11-29 Prefabricados Y Postes De Hormigón, S.A. Basamento de refuerzo para fustes de torres eólicas.
WO2011154799A3 (fr) * 2010-06-07 2012-03-01 Cortina Innovations, S. A. De C. V. Fondation en béton précontraint pour structure de construction marine
CN102536681A (zh) * 2012-01-06 2012-07-04 广东明阳风电产业集团有限公司 一种六边形风机塔架结构
CN105569415A (zh) * 2015-12-23 2016-05-11 内蒙古科技大学 格构式钢管混凝土风电塔架的节点连接器
CN106150922A (zh) * 2015-04-21 2016-11-23 浙江运达风电股份有限公司 一种风力发电设备及塔架
CN106499592A (zh) * 2016-10-27 2017-03-15 李白 海上风电机的塔筒结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006101632A2 (fr) * 2005-03-22 2006-09-28 Haller Mark E Pylone de structure hybride treillis/peau
EP1474579B1 (fr) * 2002-02-12 2006-11-15 Mecal Applied Mechanics B.V. Aerogenerateur
US20060277843A1 (en) * 2005-05-13 2006-12-14 Tracy Livingston Structural tower
DE202007003842U1 (de) * 2007-03-15 2007-05-24 Mecal Applied Mechanics B.V. Mast für eine Windturbine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1474579B1 (fr) * 2002-02-12 2006-11-15 Mecal Applied Mechanics B.V. Aerogenerateur
WO2006101632A2 (fr) * 2005-03-22 2006-09-28 Haller Mark E Pylone de structure hybride treillis/peau
US20060277843A1 (en) * 2005-05-13 2006-12-14 Tracy Livingston Structural tower
DE202007003842U1 (de) * 2007-03-15 2007-05-24 Mecal Applied Mechanics B.V. Mast für eine Windturbine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011154799A3 (fr) * 2010-06-07 2012-03-01 Cortina Innovations, S. A. De C. V. Fondation en béton précontraint pour structure de construction marine
ES2369304A1 (es) * 2011-10-10 2011-11-29 Prefabricados Y Postes De Hormigón, S.A. Basamento de refuerzo para fustes de torres eólicas.
CN102536681A (zh) * 2012-01-06 2012-07-04 广东明阳风电产业集团有限公司 一种六边形风机塔架结构
CN106150922A (zh) * 2015-04-21 2016-11-23 浙江运达风电股份有限公司 一种风力发电设备及塔架
CN105569415A (zh) * 2015-12-23 2016-05-11 内蒙古科技大学 格构式钢管混凝土风电塔架的节点连接器
CN105569415B (zh) * 2015-12-23 2018-02-06 内蒙古科技大学 格构式钢管混凝土风电塔架的节点连接器
CN106499592A (zh) * 2016-10-27 2017-03-15 李白 海上风电机的塔筒结构
CN106499592B (zh) * 2016-10-27 2019-04-26 青岛义森金属结构有限公司 海上风电机的塔筒结构

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