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 PDFInfo
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- 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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- 238000000034 method Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 162
- 239000010959 steel Substances 0.000 claims abstract description 162
- 239000003351 stiffener Substances 0.000 claims description 25
- 238000004873 anchoring Methods 0.000 claims description 15
- 230000002787 reinforcement Effects 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
-
- 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
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- 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
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.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810465006.4A CN108506169B (en) | 2018-05-16 | 2018-05-16 | Method and structure for heightening prestress stay wire type tower of wind turbine generator |
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CN201810465006.4A CN108506169B (en) | 2018-05-16 | 2018-05-16 | Method and structure for heightening prestress stay wire type tower of wind turbine generator |
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CN108506169A true CN108506169A (en) | 2018-09-07 |
CN108506169B CN108506169B (en) | 2024-06-11 |
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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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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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