CN208057316U - A kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement - Google Patents
A kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement Download PDFInfo
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- CN208057316U CN208057316U CN201820305434.6U CN201820305434U CN208057316U CN 208057316 U CN208057316 U CN 208057316U CN 201820305434 U CN201820305434 U CN 201820305434U CN 208057316 U CN208057316 U CN 208057316U
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- 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
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- 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
Abstract
The utility model provides a kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement, including concrete tower transformation segment, steel tower tube section, prestress wire, bolt assembly, flanged plate, stiffener and backing plate；Concrete tower transformation segment is connected with steel tower tube section by bolt assembly；Prestress wire passes through flanged plate, backing plate, concrete tower transformation segment, prestress wire upper end to be anchored in flanged plate upper surface by tapered end, lower end and is connected with the foundation ring of Wind turbines steel reinforced concrete tower；Flanged plate, backing plate are circular ring shape steel plate, and flanged plate, steel tower tube and stiffener weld mutually；The flanged plate and backing plate are equipped with the bolt hole and prestress wire cased perforated of respective numbers.The structure design of the utility model is reasonable, be connected firmly, mechanical characteristic is good, cheap, highly practical, it can be achieved that prestressed concrete tower cylinder section is fastenedly connected with the reasonable of steel cylinder section.
Description
Technical field
The utility model belongs to the low wind speed area wind-driven generator prestressing force steel reinforced concrete tower technical field of high tower, and in particular to one
Kind Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement.
Background technology
For wind energy as a kind of clean regenerative resource, the amount of accumulateing is huge.China territory is broad, and wind energy resources are abundant, wind
The key areas that power generates electricity as China's Renewable Energy Development is the weight for promoting Energy restructuring and sustainable economic development
Measure is wanted, there is significant society and environmental benefit.With the fast development of China's wind-powered electricity generation industry, the preferably land wind of wind-resources
Electric field construction is gradually saturated, and how to be effectively the direction of land wind power plant future development using the wind energy resources in low wind speed area.
Currently, China's wind power generating set is intended to high-power and altitude development, matching hub height and wind turbine load
Increasing, conventional steel cone tower is difficult the height and rigidity requirement met needed for high tower running of wind generating set.This
Outside, with the increase of steel cylinder height, overall stiffness declines the vibration problem that can aggravate blower fan tower barrel, prolonged oscillation cycle
Property vibration can cause the fatigue rupture of steel cylinder and bolt.
Currently, prestressed concrete-steel cylinder hybrid wind power generation pylon can meet large-scale wind electricity machine unit hub height due to it
The requirement of degree and rigidity, extensive concern is obtained in wind-powered electricity generation field.The hybrid pylon lower part of concrete-steel cylinder uses armored concrete
Tower, top use steel tower drum, basis that hollow disc shape reinforced concrete structure, three is used to pass through prestress wire phase
Even, therefore the height of steel tower drum section can substantially be reduced.The connection of prestressed concrete tower cylinder and steel tower tube is mixed tower structure
Key technology, the thick flange of generally use solid forging shaping is connected with bolt assembly between conventional fan tower segments, with tower
The increase of cylinder height and diameter, matching flange thickness is more and more thicker, increases material and processing cost, constrains high tower
The development of cylinder wind-powered electricity generation industry.In addition, the bolt assembly length used in the connection of conventional fan tower is limited by the thickness of flanged plate, lead
Cause bolt length shorter, bolt loss of prestress is very sensitive to the malformation of junction, therefore can not effectively control bolt
Prestressed size, it is difficult to which tower junction is in pressured state always during ensureing fan operation.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of Wind turbines steel reinforced concrete tower prestress wire is anti-
To connecting flange structure, it is reasonable in design, be connected firmly, mechanical characteristic is good, it is cheap, highly practical, it can be achieved that
Prestressed concrete tower cylinder section is rationally fastenedly connected with steel cylinder section.
A kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement, it is characterised in that：Including coagulation
Native tower transformation segment, steel tower tube section, prestress wire, bolt assembly, flanged plate, stiffener and backing plate；Concrete tower turns
Section is changed to connect by bolt assembly with steel tower tube section；Prestress wire passes through flanged plate, backing plate, concrete tower transformation segment,
Prestress wire upper end is anchored in flanged plate upper surface, lower end and the foundation ring phase with Wind turbines steel reinforced concrete tower by tapered end
Even；Flanged plate, backing plate are circular ring shape steel plate, and flanged plate, steel tower tube and stiffener weld mutually；It is set on the flanged plate and backing plate
There are the bolt hole and prestress wire cased perforated of respective numbers.
Further, the upper end of the bolt assembly is anchored in flanged plate upper surface, and runs through flanged plate and backing plate, passes through
Bolt sleeve extends to inside concrete tower transformation segment, and bolt assembly lower end and the nut thread being welded on lower anchor slab connect
It connects.
Further, slow transition reduces concrete tower transformation segment wall thickness by a certain percentage, ensures top end surface wall thickness
Noticeably greater than stack shell wall thickness.
Further, the stiffener is placed between flanged plate and backing plate and uniformly arranges along steel tower tube bottom circumferential direction,
Stiffener upper end is welded with flanged plate, and outside is welded with steel tower tube inner wall；The company of stiffener upper end and flanged plate and steel cylinder inner wall
The place's of connecing setting arc trepanning makes local stress seamlessly transit, optimizing stress transmission path.
Further, setting certain slope in stiffener lower end obliquely, forms gap between backing plate, is twisted by applying steel
It can preferably ensure that steel tower tube bottom end face is in pressured state after line and bolt pretension.
Further, the stiffener is trapezoidal steel plate, and the stiffener upper end width is more than lower end width, can be better
Adapt to the internal force distribution of stiffener.
Further, the backing plate is preset in concrete tower transformation segment top surface.
The utility model has the beneficial effects that：
（1）The utility model proposes steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement, structure design close
It manages, be connected firmly, mechanical characteristic is good, cheap, highly practical, it can be achieved that prestressed concrete tower cylinder section and steel tower tube section
Rationally be fastenedly connected, can meet Wind turbines enlargement, altitude demand for development, can preferably utilize low wind speed area wind
Resource.
（2）Coagulation is connected with prestress wire composite structure using flanged plate, stiffener, backing plate, high-strength bolt component
Native tower and steel tower tube can substantially reduce material and processing cost compared with traditional thick flange connector；Flange can not increased
Under the premise of plate thickness, by way of increasing or thickening stiffener while increasing rigidity of flange and bolt length, ensure coagulation
The bonding strength of native tower and steel tower tube, the fatigue problem for preferably avoiding structure that from may occurring.
（3）The slope of stiffener lower end, which is arranged between billet, forms sheet separation of putting more energy into, by applying steel strand wires and spiral shell
Steel tower tube bottom end face is in pressured state always during can guarantee fan operation after bolt pretension, greatly improves steel tower tube
Resistance to capsizing.
（4）By prestress wire to structure stretch-draw anchor after, concrete tower is substantially carried generally in preloading condition
The tensile strength and stability for having risen tower ensure that the rigidity and intensity of concrete tower.
Description of the drawings
Fig. 1 is Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement in the utility model embodiment
Sectional view.
Fig. 2 is Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement in the utility model embodiment
Top plan view.
Fig. 3 is Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement in the utility model embodiment
Tomograph.
Fig. 4 is Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement in the utility model embodiment
Three-dimensional local structural graph.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Fig. 1 ~ Fig. 4, a kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement, including steel
Tower segments 1, concrete tower transformation segment 2, flanged plate 4, stiffener 5, backing plate 6, high-strength bolt component 7 and prestress wire 8.
Stiffener 5 is placed between flanged plate 4 and backing plate 6 and along the uniformly arrangement of circumferentially spaced-apart 7.5 ° of steel tower tube bottom, altogether
48 pieces.Flanged plate 4, stiffener 5 and steel tower tube 1 are welded mutually, and all weld seams need to be through grinding process to eliminate residual stress；Annulus
Shape backing plate 6 is embedded in 2 top surface of concrete tower transformation segment, plays a part of to protect tower top surface compressive region concrete.On stiffener 5
Arc trepanning 9 is arranged to avoid stress concentration in end and the junction of 1 inner wall of flanged plate 4 and steel tower tube, keeps local stress smoothed
It crosses, optimizing stress transmission path.
Certain slope is arranged obliquely in 5 lower end of the stiffener, forms sheet separation 10 of putting more energy between backing plate 6, passes through steel
It can preferably ensure that 1 bottom end face of steel tower tube is in pressured state always after 7 tensioning of twisted wire 8 and high-strength bolt.As preferred side
Case, the gap 10 between 5 inside of stiffener and backing plate 6 are maintained between 2mm ~ 5mm；5 upper end width of stiffener is more than lower end width,
The distribution of its internal force can preferably be adapted to.
Steel tower tube section 1 and concrete tower transformation segment 2 are connected by high-strength bolt component 7 and prestress wire 8, high-strength
7 upper end of bolt is anchored in 4 upper surface of flanged plate, through flanged plate 4 and backing plate 6 and extends to concrete towers by bolt sleeve 11
Inside cylinder transformation segment 2, lower end is threadedly coupled with the nut 14 being welded on lower anchor slab 12, welded nut set on the outside of nut.It answers in advance
8 upper end of power steel strand wires is anchored in 4 upper surface of flanged plate by tapered end, runs through flanged plate 4 and backing plate 6, and pass through steel strand wires pipe laying
13 extend to through concrete tower transformation segment 2 in substructure, and lower end is anchored at foundation ring bottom surface by tapered end.High-strength spiral shell
Bolt assembly 7 and prestress wire 8 are staggered installation of between two pieces of stiffeners 5, and being spaced 15 ° between bolt 7 is evenly arranged, and totally 24
Root；15 ° are spaced between steel strand wires to be evenly arranged, totally 24 beam, to avoid concrete tower bottom door hole, the steel strand wires of door opening both sides
（Totally 4 beam）It is opened to both sides.
2 top pressurized zone of concrete tower transformation segment adds with circumferential stirrup, to protect atop a tower compressive region concrete
Compression strength.After the completion of steel reinforced concrete tower installs tensioning, used in the junction of steel tower tube section 1 and concrete tower transformation segment 2 anti-
Watertight sealing is filled.
Slow transition reduces 2 wall thickness of concrete tower transformation segment by a certain percentage, ensures that top end surface wall thickness is noticeably greater than
Stack shell wall thickness, on the one hand can be the supporting surface that top steel tower tube and transformation segment 2 provide bigger, and protection concrete atop a tower is pressurized
Area；On the other hand it is buried for concrete tower top section pre-embedded bolt casing and prestress wire under the premise of ensureing rigidity requirement
Pipe provides space.
Above example is only a kind of more excellent technical solution of the utility model, it will be understood by those of skill in the art that
In the case that do not depart from the principles of the present invention and essence can in embodiment technical solution or parameter modify or
Person replaces, and should be covered within the scope of the utility model.
Claims (7)
1. a kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement, it is characterised in that：Including concrete
Tower transformation segment, steel tower tube section, prestress wire, bolt assembly, flanged plate, stiffener and backing plate；Concrete tower is converted
Section is connected with steel tower tube section by bolt assembly；Prestress wire passes through flanged plate, backing plate, concrete tower transformation segment, in advance
Prestress steel strand upper end is anchored in flanged plate upper surface, lower end and the foundation ring phase with Wind turbines steel reinforced concrete tower by tapered end
Even；Flanged plate, backing plate are circular ring shape steel plate, and flanged plate, steel tower tube and stiffener weld mutually；It is set on the flanged plate and backing plate
There are the bolt hole and prestress wire cased perforated of respective numbers.
2. a kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement according to claim 1,
It is characterized in that：The upper end of the bolt assembly is anchored in flanged plate upper surface, and runs through flanged plate and backing plate, passes through bolt sleeve
It extends to inside concrete tower transformation segment, bolt assembly lower end is connect with the nut thread being welded on lower anchor slab.
3. a kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement according to claim 1,
It is characterized in that：Slow transition reduces concrete tower transformation segment wall thickness by a certain percentage, ensures that top end surface wall thickness is noticeably greater than
Stack shell wall thickness.
4. a kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement according to claim 1,
It is characterized in that：The stiffener is placed between flanged plate and backing plate and in the circumferential uniformly arrangement in steel tower tube bottom, stiffener
End is welded with flanged plate, and outside is welded with steel tower tube inner wall；Stiffener upper end is arranged with the junction of flanged plate and steel cylinder inner wall
Arc trepanning makes local stress seamlessly transit, optimizing stress transmission path.
5. a kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement according to claim 1,
It is characterized in that：Certain slope is arranged obliquely in stiffener lower end, and gap is formed between backing plate, by applying steel strand wires and bolt
It can preferably ensure that steel tower tube bottom end face is in pressured state after pretension.
6. a kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement according to claim 1,
It is characterized in that：The stiffener is trapezoidal steel plate, and the stiffener upper end width is more than lower end width, can preferably adapt to put more energy into
The internal force of plate is distributed.
7. a kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement according to claim 1,
It is characterized in that：The backing plate is preset in concrete tower transformation segment top surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820305434.6U CN208057316U (en) | 2018-03-06 | 2018-03-06 | A kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820305434.6U CN208057316U (en) | 2018-03-06 | 2018-03-06 | A kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN208057316U true CN208057316U (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820305434.6U Active CN208057316U (en) | 2018-03-06 | 2018-03-06 | A kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259643A (en) * | 2019-06-25 | 2019-09-20 | 中国电建集团华东勘测设计研究院有限公司 | A kind of novel pre-stressed steel reinforced concrete pylon changeover portion conversion equipment |
| CN110644524A (en) * | 2019-10-09 | 2020-01-03 | 兰州理工大学 | PBL shear key type wind power generation tower foundation ring facility and construction method |
| CN111022267A (en) * | 2019-12-27 | 2020-04-17 | 重庆大学 | Hybrid wind power tower cylinder based on segmented prestress multi-cavity combined shell |
| CN111350271A (en) * | 2020-03-10 | 2020-06-30 | 崔冰 | Concrete slab steel-concrete connection interface anti-cracking structure and preparation method thereof |
| CN112112767A (en) * | 2020-09-15 | 2020-12-22 | 重庆大学 | Combined structure switching structure for wind turbine generator system steel-concrete tower cylinder |
| CN112196746A (en) * | 2020-11-06 | 2021-01-08 | 同济大学建筑设计研究院(集团)有限公司 | High-neck tensioning anti-loosening flange connecting node and mounting method |
| CN112502908A (en) * | 2020-11-21 | 2021-03-16 | 重庆大学 | Connecting node suitable for offshore wind power tower cylinder structure and installation method |
| CN112502908B (en) * | 2020-11-21 | 2024-05-17 | 重庆大学 | Connection node suitable for offshore wind power tower structure and installation method |
-
2018
- 2018-03-06 CN CN201820305434.6U patent/CN208057316U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259643A (en) * | 2019-06-25 | 2019-09-20 | 中国电建集团华东勘测设计研究院有限公司 | A kind of novel pre-stressed steel reinforced concrete pylon changeover portion conversion equipment |
| CN110644524A (en) * | 2019-10-09 | 2020-01-03 | 兰州理工大学 | PBL shear key type wind power generation tower foundation ring facility and construction method |
| CN111022267A (en) * | 2019-12-27 | 2020-04-17 | 重庆大学 | Hybrid wind power tower cylinder based on segmented prestress multi-cavity combined shell |
| CN111350271A (en) * | 2020-03-10 | 2020-06-30 | 崔冰 | Concrete slab steel-concrete connection interface anti-cracking structure and preparation method thereof |
| CN112112767A (en) * | 2020-09-15 | 2020-12-22 | 重庆大学 | Combined structure switching structure for wind turbine generator system steel-concrete tower cylinder |
| CN112196746A (en) * | 2020-11-06 | 2021-01-08 | 同济大学建筑设计研究院(集团)有限公司 | High-neck tensioning anti-loosening flange connecting node and mounting method |
| CN112502908A (en) * | 2020-11-21 | 2021-03-16 | 重庆大学 | Connecting node suitable for offshore wind power tower cylinder structure and installation method |
| CN112502908B (en) * | 2020-11-21 | 2024-05-17 | 重庆大学 | Connection node suitable for offshore wind power tower structure and installation method |
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