CN108506169A - A kind of Wind turbines prestressing force stay-supported pylon increases method and structure - Google Patents

A kind of Wind turbines prestressing force stay-supported pylon increases method and structure Download PDF

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Publication number
CN108506169A
CN108506169A CN201810465006.4A CN201810465006A CN108506169A CN 108506169 A CN108506169 A CN 108506169A CN 201810465006 A CN201810465006 A CN 201810465006A CN 108506169 A CN108506169 A CN 108506169A
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steel tower
tower tube
newly
increased
original
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CN201810465006.4A
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CN108506169B (en
Inventor
黄春林
张栋梁
汤群益
俞华锋
吴芳和
陈金军
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PowerChina Huadong Engineering Corp Ltd
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PowerChina Huadong Engineering Corp Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D13/00Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/728Onshore wind turbines

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

The present invention provides a kind of Wind turbines prestressing force stay-supported pylons to increase method and structure, it increases wind-powered machine unit hub height by way of newly-increased steel tower tube, and newly-increased steel tower tube is made of one or more snippets steel tower tube;Wind turbines after increasing from top to bottom are followed successively by wind turbine head, original steel tower tube, newly-increased steel tower tube and original blower foundation.Reasonable design of the present invention construction is simple, is connected firmly, is highly practical, under the premise of continuing to use original blower foundation and tower, can be effectively increased wind-powered machine unit hub height.

Description

A kind of Wind turbines prestressing force stay-supported pylon increases method and structure
Technical field
The invention belongs to the high tower technical fields of low wind speed area Wind turbines, and in particular to a kind of top is conventional head tower Cylinder, lower part are that prestressing force stay-supported pylon increases method and structure.
Background technology
Currently, China's tradition Wind turbines mostly use greatly steel cone tower, existing major part wind-powered machine unit hub It is highly low, it is low compared to high wheel hub Wind turbines generating efficiency.In order to efficiently use the wind energy resources in low wind speed area, land wind Motor group will be gradually to high-power and altitude development.At this stage, prestressed concrete-steel cylinder mixing pylon and soft tower tower Frame has obtained extensively since it can meet the requirement of large-scale wind electricity machine unit hub height and rigidity in high tower technical field of wind power General concern provides new thinking and direction for the development of the following land wind-powered electricity generation industry, but this still can not fundamentally change now The present situation for having the low hub height Wind turbines generating efficiency for operation of having gone into operation low.
Invention content
First purpose of the present invention is in view of the above problems, to provide a kind of reasonable design, construction is simple, connection Securely, highly practical, under the premise of continuing to use original blower foundation and tower, the wind-powered electricity generation of wind-powered machine unit hub height can be effectively increased Unit prestressing force stay-supported pylon increases method.For this purpose, the present invention uses following technical scheme:
A kind of Wind turbines prestressing force stay-supported pylon increases method, it is characterised in that it is increased by way of newly-increased steel tower tube Wind-powered machine unit hub height, newly-increased steel tower tube are made of one or more snippets steel tower tube;
The flange arrangement on newly-increased steel tower tube top is set as being adapted with the flange arrangement of original steel tower tube bottom end, by newly-increased steel The connection structure of tower bottom end is set as flange arrangement compatible with original blower foundation;
In the flanged joint of the top of newly-increased steel tower tube and original steel tower tube bottom end, to increasing the flange arrangement on steel tower tube top newly Reinforced;When newly-increased steel tower tube is made of multistage steel tower tube, adjacent steel tower tube is connected by flange arrangement, and under therein The upper flanges structure of square steel tower is reinforced;
The upper end of each section of newly-increased steel tower tube is arranged to the upper anchorage component of prestressing force bracing wire, with can be to each section of newly-increased head tower Cylinder applies respectively with prestressing force bracing wire;
It is evenly arranged several bored concrete piles in the periphery of original blower foundation, pre-embedded anchoring bolts at the top of bored concrete pile, using pre- buried Foot bolt fixes the lower anchor component of prestressing force bracing wire;
Each section steel tower tube that lifting increases newly paragraph by paragraph from the bottom to top, and each section of steel tower tube is connected by bolt assembly, increase steel tower tube newly The flange arrangement of bottom end is connect with blower foundation;By at the upper anchorage component of each section of newly-increased head tower drum outer wall and bored concrete pile top surface Lower anchor component at connect steel strand wires, and steel strand wires lower end is fixed to lower anchor component by the way of tension in lower part Place, so that each section of newly-increased steel tower tube is connected by prestress wire with the bored concrete pile of original blower foundation periphery;Then Original steel tower tube is lifted paragraph by paragraph from the bottom to top again, by bolt assembly by the flange arrangement of original steel tower tube bottom end and newly-increased head tower The flange arrangement connection on cylinder top, each section of steel tower tube of original steel tower tube is connected by bolt assembly;
Wind turbines after increasing from top to bottom are followed successively by wind turbine head, original steel tower tube, newly-increased steel tower tube and original wind turbine Basis.
Further, include the following steps before lifting increases steel tower tube newly(1)Arrange stake position, casting concrete bored concrete pile is simultaneously Pre-embedded anchoring bolts, curing period, install the lower anchor component of steel strand wires in bored concrete pile top surface later;(2)By original wind turbine head Simultaneously local integration is sling with tower.
Another object of the present invention is in view of the above problems, to provide a kind of reasonable design, construction is simple, connection Securely, highly practical, under the premise of continuing to use original blower foundation and tower, the wind-powered electricity generation of wind-powered machine unit hub height can be effectively increased Unit prestressing force stay-supported pylon heightening structure.For this purpose, the present invention uses following technical scheme:
A kind of Wind turbines prestressing force stay-supported pylon heightening structure, it is characterised in that:The Wind turbines prestressing force guyed tower Frame heightening structure includes newly-increased steel tower tube, prestress wire, multiple bored concrete piles, increases steel tower tube newly by one or more snippets steel tower tube Composition;Wind turbines after increasing from top to bottom are followed successively by wind turbine head, original steel tower tube, newly-increased steel tower tube and original wind turbine Basis, multiple bored concrete piles are evenly arranged in the periphery of original blower foundation;
The flange arrangement on newly-increased steel tower tube top is set as being adapted with the flange arrangement of original steel tower tube bottom end, increases steel tower tube newly The connection structure of bottom end is set as flange arrangement compatible with original blower foundation;
The flange arrangement on newly-increased steel tower tube top has reinforcement structure;It is adjacent when newly-increased steel tower tube is made of multistage steel tower tube Steel tower tube is connected by flange arrangement, and the upper flanges structure of lower section steel tower tube has reinforcement structure;
Newly-increased steel tower tube the lowermost connection structure is set as flange arrangement compatible with original blower foundation;
The upper anchorage component of setting prestressing force bracing wire on the outside of the upper end of each section of newly-increased steel tower tube;
Original steel tower tube bottom end flange arrangement is connected with newly-increased steel tower tube top flange arrangement by bolt assembly, each section of newly-increased steel Tower is connected by flange arrangement with bolt assembly, and the flange arrangement of newly-increased steel tower tube bottom end is connected with original blower foundation;
Pre-embedded anchoring bolts at the top of bored concrete pile fix the lower anchor component of prestressing force bracing wire using pre-embedded anchoring bolts, described The upper end of each section of steel tower tube of newly-increased steel tower tube is connected by respective prestress wire with bored concrete pile respectively, steel strand wires upper end It is anchored at upper anchorage component, pre-tightening posterior end through tensioning passes through the steel strand wires anchoring lower ends component that is fixed at the top of bored concrete pile Place.
Further, the reinforcement structure is included in welding ring stiffener and longitudinal direction at the inner wall of steel tower tube upper end and puts more energy into Plate.
Further, steel strand wires are evenly arranged along tower circumferential direction, and the arrangement of bored concrete pile is corresponding with prestress wire.
Further, each section of steel tower tube upper and lower ends for increasing steel tower tube newly are processed into L-shaped flange, and in each section of steel tower tube Upper end weld 2 layers of ring stiffener and longitudinal stiffener, the flanged plate and ring stiffener middle preset bolt of L-shaped flange Hole;The longitudinal direction stiffener, ring stiffener and tower inner wall weld.
The beneficial effects of the invention are as follows:
(1)Wind turbines prestressing force stay-supported pylon proposed by the present invention increases method and structure, and quantities is few, structure design Rationally, construction is simple, be connected firmly, be highly practical, wind turbine can be increased under the premise of continuing to use original blower foundation and tower The Wind turbines of previous 100m or less hub heights can be increased tens of rice more than 100m by group hub height, and energy is preferably sharp With the wind energy resources in low wind speed area.
(2)After pre- tensioning being carried out by the prestress wire and bored concrete pile of periphery to newly-increased steel tower tube so that lower junction Structure, generally in preloading condition, is lifting wind-powered machine unit hub altitudes on the basis of flange connects positioning with bolt assembly Under, it is ensured that the resistance to capsizing of the tensile strength of tower and stability and blower foundation during fan operation.
(3)The low hub height Wind turbines generating efficiency that existing operation of having gone into operation can fundamentally be changed low shows Shape.
Description of the drawings
Fig. 1 is Wind turbines prestressing force stay-supported pylon overall structure elevation in the embodiment of the present invention.
Fig. 2 is the A-A sectional views of Fig. 1, is Wind turbines prestressing force stay-supported pylon heightening structure in the embodiment of the present invention Vertical view.
Fig. 3 is the partial schematic diagram for increasing tower segments junction and steel strand wires drawing ear in the embodiment of the present invention newly.
Fig. 4 is the directions the B-B view of Fig. 3, is to increase tower segments junction flange and stiffener in the embodiment of the present invention newly Partial schematic diagram.
Fig. 5 is that steel strand wires draw ear vertical view in the embodiment of the present invention.
Fig. 6 is the partial schematic diagram of steel strand anchoring component at the top of bored concrete pile in the embodiment of the present invention.
Fig. 7 is the C-C sectional views of Fig. 6.
Fig. 8 is the D-D sectional views of Fig. 6.
Specific implementation mode
The present embodiment is the tower that an original hub height is 72.5m, is 20m's high by adding 2 sections in lower part Hub height is raised to 112.5m by steel tower tube, and invention is further described in detail below in conjunction with the accompanying drawings.
As shown in Fig. 1 ~ Fig. 8, Wind turbines prestressing force stay-supported pylon heightening structure includes 2 sections of newly-increased steel in the present embodiment Tower 3, prestress wire 4, bored concrete pile 5.It is described increase after Wind turbines be from top to bottom followed successively by wind turbine head 1, original Steel tower tube section 2, prestressing force stay-supported pylon heightening structure and original blower foundation 6.
The hop count of newly-increased steel tower tube and each section of length can according to actual needs and consider tower whole stress it is special Property determine.Steel strand wires are evenly arranged along tower circumferential direction, and the quantity of steel strand wires is determined with pretension according to top fan loads;Perfusion Stake arrangement it is correspondings with prestress wire, uniform circumferential direction be arranged in away from blower foundation outside at a certain distance from, in order to avoid drawing Influence of the line to surrounding enviroment, bored concrete pile foundation should not be apart from blower foundations too far;The diameter of the bored concrete pile and the long basis of stake Geology at the stretching force of steel strand wires and selected seat in the plane surveys data determination in detail.
Each section of newly-increased steel tower tube 3 is connected by prestress wire 4 with bored concrete pile 5, preferably, embodiment In every section of newly-increased steel tower tube by 64 tensioning of steel strand wires being evenly arranged of circumferential direction, 4 upper end of steel strand wires is anchored to newly-increased steel tower tube 3 At the drawing ear 7 of top outer, lower end is fixed at the steel strand wires anchoring lower ends component at 5 top of bored concrete pile.
As shown in figure 3, being connected by bolt assembly 8, flange arrangement between steel tower tube.3 upper and lower ends of newly-increased steel tower tube are equal L-shaped flange 9 is processed, and 2 layers of ring stiffener 11 and longitudinal stiffener 10, flanged plate 9 and ring are welded in newly-increased tower upper end To 11 middle preset bolt hole of stiffener, uppermost increases the number of bolt hole of the upper flanges structure of steel tower tube 3, positioning and original newly There is the steel tower tube bottom end original bolt hole of flange to be consistent.Longitudinal stiffener 10, ring stiffener 11 and tower inner wall weld.It is vertical Arc trepanning 12 is arranged to avoid stress concentration in the corner point being connect to stiffener 10 with 3 inner wall of steel cylinder, keeps local stress smooth Transition, optimizing stress transmission path.The bottom end of newly-increased steel tower tube 3 passes through flange arrangement and bolt assembly and original blower foundation 6 It is connected.
Above-mentioned ring stiffener 11 and longitudinal stiffener 10 participates in flange arrangement, on the one hand can increase flange arrangement Thickness avoids the too short Fatigue Damage Problem easily caused of bolt length, another aspect energy to achieve the purpose that increase bolt length The enough intensity for greatly reinforcing flange connection and steel strand wires drawing ear junction.
Connection between each section of steel tower tube 2 of original steel tower tube is connected according to the connection type of original.Newly-increased steel tower tube 3 Each section between connected with bolt assembly by flange arrangement, and the upper flanges structure of the steel tower tube of lower section also have above-mentioned ring To 10 reinforcement structure of stiffener 11 and longitudinal stiffener.
It includes 4 pieces of upper 13,4 pieces of lower floors 16 of floor and strain plate 15 that ear 7 is drawn in the steel strand wires upper end anchoring.Floor 13, 16 and strain plate 15 and 3 outer wall of steel tower tube weld, the gradient of strain plate 15 is according to the tensioning angle-determining of steel strand wires 4 to ensure The axis of steel strand wires is vertical with strain plate plane.Opened up among strain plate 15 steel strand wires perforation 17, steel strand wires 4 by perforation 17 into Row is installed, and upper end is anchored to the upper surface of strain plate 15 by tapered end 14.
The circumferential bored concrete pile 5 for being evenly arranged 6 a diameter of 1.2m in the present embodiment, the geology at seat in the plane selected by the long basis of stake Data is surveyed in detail and the calculating of tension bearing capacity is determined as 25m, and 5 top of bored concrete pile is twisted by 8 pre-buried foundation bolts 21 and steel The anchoring assembly of line lower end is connected.Anchoring lower ends component includes H profile steel 20, stiffener 25, angle board 18 and tapered end 19, is both facilitated Installation ensures to be built on the rock, and can provide prestretching operating space.8 pieces of rectangle stiffeners 25 are placed on H profile steel two edges of a wing up and down 24, it between 26, and is welded with the web of H profile steel and the edge of a wing.The flange plate up and down of H profile steel opens up 8 anchor (bolt) holes 22, just It is passed through in 8 foundation bolts;And 2 steel strand wires perforation 23 are added on the top flange plate of H profile steel 24.Angle board 18 is adjusting The axis of steel strand wires is vertical with lower anchored end face, and is anchored 4 lower end of steel strand wires by tapered end 19 by the way of tension in lower part To the bottom surface of angle board 18.
All weld seams need to be through grinding process to eliminate residual stress in embodiment;All steel strand wires need to carry out preservative treatment.
Above example is only a kind of more excellent technical solution of the present invention, it will be understood by those of skill in the art that not Be detached from the principle of the present invention and essence in the case of can in embodiment technical solution or parameter modify or replace, all It is covered by the protection scope of the present invention.

Claims (6)

1. a kind of Wind turbines prestressing force stay-supported pylon increases method, it is characterised in that it is increased by way of newly-increased steel tower tube Add wind-powered machine unit hub height, newly-increased steel tower tube is made of one or more snippets steel tower tube;
The flange arrangement on newly-increased steel tower tube top is set as being adapted with the flange arrangement of original steel tower tube bottom end, by newly-increased steel The connection structure of tower bottom end is set as flange arrangement compatible with original blower foundation;
In the flanged joint of the top of newly-increased steel tower tube and original steel tower tube bottom end, to increasing the flange arrangement on steel tower tube top newly Reinforced;When newly-increased steel tower tube is made of multistage steel tower tube, adjacent steel tower tube is connected by flange arrangement, and under therein The upper flanges structure of square steel tower is reinforced;
The upper end of each section of newly-increased steel tower tube is arranged to the upper anchorage component of prestressing force bracing wire, with can be to each section of newly-increased head tower Cylinder applies respectively with prestressing force bracing wire;
It is evenly arranged several bored concrete piles in the periphery of original blower foundation, pre-embedded anchoring bolts at the top of bored concrete pile, using pre- buried Foot bolt fixes the lower anchor component of prestressing force bracing wire;
Each section steel tower tube that lifting increases newly paragraph by paragraph from the bottom to top, and each section of steel tower tube is connected by bolt assembly, increase steel tower tube newly The flange arrangement of bottom end is connect with blower foundation;By at the upper anchorage component of each section of newly-increased head tower drum outer wall and bored concrete pile top surface Lower anchor component at connect steel strand wires, and steel strand wires lower end is fixed to lower anchor component by the way of tension in lower part Place, so that each section of newly-increased steel tower tube is connected by prestress wire with the bored concrete pile of original blower foundation periphery;Then Original steel tower tube is lifted paragraph by paragraph from the bottom to top again, by bolt assembly by the flange arrangement of original steel tower tube bottom end and newly-increased head tower The flange arrangement connection on cylinder top, each section of steel tower tube of original steel tower tube is connected by bolt assembly;
Wind turbines after increasing from top to bottom are followed successively by wind turbine head, original steel tower tube, newly-increased steel tower tube and original wind turbine Basis.
2. a kind of Wind turbines prestressing force stay-supported pylon according to claim 1 increases method, it is characterised in that:It is hanging Dress includes the following steps before increasing steel tower tube newly(1)Arrange stake position, casting concrete bored concrete pile and pre-embedded anchoring bolts, curing period mistake The lower anchor component of steel strand wires is installed in bored concrete pile top surface afterwards;(2)Original wind turbine head and tower are sling into simultaneously local integration.
3. a kind of Wind turbines prestressing force stay-supported pylon heightening structure, it is characterised in that:The Wind turbines prestressing force stay-supported Pylon heightening structure includes newly-increased steel tower tube, prestress wire, multiple bored concrete piles, increases steel tower tube newly by one or more snippets head tower Cylinder composition;Wind turbines after increasing from top to bottom are followed successively by wind turbine head, original steel tower tube, newly-increased steel tower tube and original wind Machine basis, multiple bored concrete piles are evenly arranged in the periphery of original blower foundation;
The flange arrangement on newly-increased steel tower tube top is set as being adapted with the flange arrangement of original steel tower tube bottom end, increases steel tower tube newly The connection structure of bottom end is set as flange arrangement compatible with original blower foundation;
The flange arrangement on newly-increased steel tower tube top has reinforcement structure;It is adjacent when newly-increased steel tower tube is made of multistage steel tower tube Steel tower tube is connected by flange arrangement, and the upper flanges structure of lower section steel tower tube has reinforcement structure;
Newly-increased steel tower tube the lowermost connection structure is set as flange arrangement compatible with original blower foundation;
The upper anchorage component of setting prestressing force bracing wire on the outside of the upper end of each section of newly-increased steel tower tube;
Original steel tower tube bottom end flange arrangement is connected with newly-increased steel tower tube top flange arrangement by bolt assembly, each section of newly-increased steel Tower is connected by flange arrangement with bolt assembly, and the flange arrangement of newly-increased steel tower tube bottom end is connected with original blower foundation;
Pre-embedded anchoring bolts at the top of bored concrete pile fix the lower anchor component of prestressing force bracing wire using pre-embedded anchoring bolts, described The upper end of each section of steel tower tube of newly-increased steel tower tube is connected by respective prestress wire with bored concrete pile respectively, steel strand wires upper end It is anchored at upper anchorage component, pre-tightening posterior end through tensioning is fixed at the steel strand wires anchoring lower ends component at the top of bored concrete pile.
4. a kind of Wind turbines prestressing force stay-supported pylon heightening structure as claimed in claim 3, it is characterised in that:It is described to add Strong structure, which is included at the inner wall of steel tower tube upper end, welds ring stiffener and longitudinal stiffener.
5. a kind of Wind turbines prestressing force stay-supported pylon heightening structure as claimed in claim 3, it is characterised in that:Steel strand wires It is evenly arranged along tower circumferential direction, the arrangement of bored concrete pile is corresponding with prestress wire.
6. a kind of Wind turbines prestressing force stay-supported pylon heightening structure as claimed in claim 3, it is characterised in that:Newly-increased steel Each section of steel tower tube upper and lower ends of tower are processed into L-shaped flange, and weld 2 layers of ring stiffener in the upper end of each section of steel tower tube With longitudinal stiffener, the flanged plate and ring stiffener middle preset bolt hole of L-shaped flange;The longitudinal direction stiffener, circumferential direction add Strength plate is welded with tower inner wall.
CN201810465006.4A 2018-05-16 2018-05-16 Method and structure for heightening prestress stay wire type tower of wind turbine generator Active CN108506169B (en)

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CN108506169B CN108506169B (en) 2024-06-11

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021056923A1 (en) * 2019-09-27 2021-04-01 北京金风科创风电设备有限公司 Guyed tower, wind power generator set and connecting devices
CN114541439A (en) * 2022-03-22 2022-05-27 中交路桥建设有限公司 Construction method of double-wall steel cofferdam structure without back cover
EP4124750A1 (en) * 2021-07-27 2023-02-01 Siemens Gamesa Renewable Energy Innovation & Technology S.L. Stay cable connection assembly

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CN106321367A (en) * 2016-10-20 2017-01-11 同济大学 Cable-stayed prestressed steel and concrete combined type fan tower
CN206555076U (en) * 2017-03-14 2017-10-13 上海电力设计院有限公司 Wind-driven generator tower self-floating transport waterborne and integral hoisting frock
CN208763818U (en) * 2018-05-16 2019-04-19 中国电建集团华东勘测设计研究院有限公司 A kind of Wind turbines prestressing force stay-supported pylon heightening structure

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Publication number Priority date Publication date Assignee Title
CN1556898A (en) * 2002-02-06 2004-12-22 ���ܿ���ϵͳ���޹�˾ Method of mounting elements in a wind turbine tower, wind tower suspension unit, system of mutually attachable members
CN202673588U (en) * 2012-07-09 2013-01-16 北京金风科创风电设备有限公司 Device for connecting concrete tower drum with steel tower drum
US20160215762A1 (en) * 2013-09-06 2016-07-28 youWINenergy GmbH Retrofitted wind turbine installation
CN104005919A (en) * 2014-06-13 2014-08-27 湖南大学 Anchored ribbed type connecting device for prestressed concrete and steel tower section of wind power combined tower
CN106321367A (en) * 2016-10-20 2017-01-11 同济大学 Cable-stayed prestressed steel and concrete combined type fan tower
CN206555076U (en) * 2017-03-14 2017-10-13 上海电力设计院有限公司 Wind-driven generator tower self-floating transport waterborne and integral hoisting frock
CN208763818U (en) * 2018-05-16 2019-04-19 中国电建集团华东勘测设计研究院有限公司 A kind of Wind turbines prestressing force stay-supported pylon heightening structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021056923A1 (en) * 2019-09-27 2021-04-01 北京金风科创风电设备有限公司 Guyed tower, wind power generator set and connecting devices
EP4124750A1 (en) * 2021-07-27 2023-02-01 Siemens Gamesa Renewable Energy Innovation & Technology S.L. Stay cable connection assembly
CN114541439A (en) * 2022-03-22 2022-05-27 中交路桥建设有限公司 Construction method of double-wall steel cofferdam structure without back cover
CN114541439B (en) * 2022-03-22 2023-09-26 中交路桥建设有限公司 Construction method of double-wall steel cofferdam structure without bottom sealing

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