CN106592622A - Annular concrete based wind-driven generator foundation structure with vertical prestress - Google Patents
Annular concrete based wind-driven generator foundation structure with vertical prestress Download PDFInfo
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- CN106592622A CN106592622A CN201611180025.XA CN201611180025A CN106592622A CN 106592622 A CN106592622 A CN 106592622A CN 201611180025 A CN201611180025 A CN 201611180025A CN 106592622 A CN106592622 A CN 106592622A
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- concrete
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- annular concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses an annular concrete based wind-driven generator foundation structure with vertical prestress. The annular concrete based wind-driven generator foundation structure with the vertical prestress comrpiess an upper flange of a foundation, a lower flange of the foundation, a tower drum, a foundation ring, foundation concrete, top annular concrete and radial annular concrete, wherein the radial annular concrete is fixed to the side surface of the foundation concrete in a sleeving manner; the bottom part of the top annular concrete is connected to the top part of the foundation concrete and the top part of the radial annular concrete; the lower flange of the foundation is positioned in the foundation concrete, and the upper flange of the foundation is positioned at the upper part of the top annular concrete; the lower end of the foundation ring is connected with the lower flange of the foundation, and the upper end of the foundation ring passes through the foundation concrete and then passes through the top annular concrete to be connected with the upper flange of the foundation; the lower end of the tower drum is connected with the upper flange of the foundation. With the adoption of the structure, the stressing state of the foundation ring of a wind-driven generator can be effectively improved, so that the foundation ring can be prevented from loosening to cause damage, and as a result, the bearing capacity of the foundation ring is improved.
Description
Technical field
The invention belongs to wind energy turbine set structure foundation basic engineering field, is related to a kind of based on annular concrete band vertical prestressing
Fan foundation structure.
Background technology
China is not perfect for the specification of blower foundation design, the basic engineering of wind-driven generator typically use for reference building,
The related specifications of the industries such as electric power,《Wind turbines Base foundation design specifies (tentative)》(FD 003-2007) only to building or
Wind energy turbine set engineering in previous work is specified, and the Wind turbines basis to building does not propose a solution.Wind
Power power generation fan support system belongs in structure high-rise structures, but with other skyscrapers except that, large scale wind
The suffered load condition in basis of electromotor is increasingly complex, and its basis has bears 360 degree of direction reloadings and large eccentricity stress
Particularity, it is therefore high to the stability requirement of foundation.This particularity causes many built blower fan crew bases to set
Meter is conservative or dangerous, and indivedual built wind energy turbine set Wind turbines bases even occur basic Inclining destruction in extreme operating condition
Situation, existing reinforcement means generally adopt grouting and reinforcing, will mineral-type slurry perfusion reinforced to lower flange root, general
The materials such as epoxy resin are filled into basis and carry out reinforcing with the gap of foundation ring.However, consolidation by grouting can only play recovery
Concrete ring periphery bearing capacity of concrete-filled is acted on, and when foundation ring connects Lack of support, the method can not improve its carrying
Power.
The content of the invention
It is an object of the invention to overcome the shortcoming of above-mentioned prior art, there is provided one kind vertically in advance should based on annular concrete band
The fan foundation structure of power, the structure can effectively improve the stress of blower foundation ring, prevent foundation ring from loosening and produce
Destruction, improves the bearing capacity of foundation ring.
It is of the present invention that base is included based on fan foundation structure of the annular concrete with vertical prestressing to reach above-mentioned purpose
Plinth upper flange, basic lower flange, tower, foundation ring, base concrete, top annular concrete and radial ringed concrete；
The side of base concrete is fixed in radial ringed concrete socket, and bottom and the basis of top annular concrete are mixed
It is connected at the top of the top of solidifying soil and radial ringed concrete, basic lower flange is located in base concrete, basic upper flange
Positioned at the top of top annular concrete, the lower end of foundation ring is connected with basic lower flange, and the upper end of foundation ring passes basis
Pass top annular concrete after concrete again to be connected with basic upper flange, the lower end of tower is connected with basic upper flange.
Also include horizontal annular steel plate, the internal face of horizontal annular steel plate is connected with the lateral surface of basic upper flange.
The side of tower is connected with the top of horizontal annular steel plate by some trapezoidal steel plates.
Also include some deformed bars, wherein, the lower end of deformed bar is located at base concrete and mixes with radial ringed
Between solidifying soil, the anchor of deformed bar upper end is connected through after top annular concrete with horizontal annular steel plate.
The bar-mat reinforcement in bar-mat reinforcement, base concrete and the reinforcing bar in top annular concrete in radial ringed concrete
Net is welded to each other.
Each trapezoidal steel plate is circumferentially sequentially distributed.
The invention has the advantages that：
It is of the present invention that foundation ring, basic coagulation are included based on fan foundation structure of the annular concrete with vertical prestressing
Soil, top annular concrete and radial ringed concrete, wherein, radial ringed concrete is socketed and is fixed on base concrete
Side, top annular concrete is located on radial ringed concrete and base concrete, so as to effectively improve burying for foundation ring
Depth is put, so as to effectively improve the concrete stress concentration problem at basic lower flange, top layer in base concrete is reduced and is mixed
The compressive stress of soil is coagulated, improves the stress of blower foundation ring, prevented foundation ring from loosening and produce destruction, while by radial ringed
Concrete increases the stress sectional area on basis, so as to effectively improve the bearing capacity of foundation ring, and then improves holding for blower foundation
Carry power.
Further, the lower end of deformed bar is located between base concrete and radial ringed concrete, by prestressing force
Reinforcing bar improves the nominal buried depth of foundation ring.
Further, in radial ringed concrete bar-mat reinforcement, the bar-mat reinforcement in base concrete and top annular concrete
In bar-mat reinforcement be welded to each other so that radial ringed concrete, base concrete and top annular concrete become one it is whole
Body structure.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the bar-mat reinforcement in the present invention in radial direction annular concrete 8 and the reinforcing bar web frame in top annular concrete 5
Schematic diagram.
Wherein, 1 it is trapezoidal steel plate, 2 be tower, upper flange based on 3,4 is horizontal annular steel plate, 5 mixed for top annular
Solidifying soil, ring based on 6, lower flange based on 7,8 be radial ringed concrete, 9 be deformed bar, concrete based on 10.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to Fig. 1, it is of the present invention included based on fan foundation structure of the annular concrete with vertical prestressing on the basis of method
Blue 3, basic lower flange 7, tower 2, foundation ring 6, base concrete 10, top annular concrete 5 and radial ringed concrete eight；
Radial ringed concrete eight is fixed by socket in the side of base concrete 10, the bottom of top annular concrete 5 and base concrete
Be connected at the top of 10 top and radial ringed concrete eight, basic lower flange 7 be located at base concrete 10 in, on the basis of method
Blue 3 tops for being located at top annular concrete 5, the lower end of foundation ring 6 is connected with basic lower flange 7, and the upper end of foundation ring 6 is worn
Go out after base concrete 10 to pass again top annular concrete 5 to be connected with basic upper flange 3, the lower end of tower 2 is with the basis of
Flange 3 is connected.
Present invention additionally comprises horizontal annular steel plate 4, the internal face of horizontal annular steel plate 4 and the lateral surface of basis upper flange 3
It is connected；The side of tower 2 is connected with the top of horizontal annular steel plate 4 by some trapezoidal steel plates 1.If present invention additionally comprises
Dry deformed bar 9, wherein, the lower end of deformed bar 9 is located between base concrete 10 and radial ringed concrete eight, in advance
The anchor of the upper end of stress reinforcing bar 9 is connected through after top annular concrete 5 with horizontal annular steel plate 4；In radial ringed concrete eight
Bar-mat reinforcement, base concrete 10 in bar-mat reinforcement and the bar-mat reinforcement in top annular concrete 5 be welded to each other；Each trapezoidal steel plate
1 is circumferentially sequentially distributed.
The present invention mechanism be：Top annular concrete 5 increases the buried depth of basic lower flange 7, equivalent to moment of flexure not
In the case of change, torque arm length is increased, effectively reduce the concentration power size at basic lower flange 7, so as to effectively improve
Concrete stress concentration problem at basic lower flange 7；Meanwhile, radial ringed concrete eight is by bar-mat reinforcement and base concrete
10 connections are integral, increase the globality inside base concrete 10, so as to improve the bearing capacity of base concrete 10, and
The nominal buried depth of basic lower flange 7 can be improved by applying vertical prestressed reinforcement 9, so as to reduce the pressure of top layer concrete
Stress.
Claims (6)
1. a kind of based on fan foundation structure of the annular concrete with vertical prestressing, it is characterised in that including basic upper flange (3),
Basic lower flange (7), tower (2), foundation ring (6), base concrete (10), top annular concrete (5) and radial ringed mixed
Solidifying soil (8)；
Radial ringed concrete (8) is fixed by socket in the side of base concrete (10), the bottom of top annular concrete (5) with
It is connected at the top of the top of base concrete (10) and radial ringed concrete (8), basic lower flange (7) is positioned at basic coagulation
In native (10), basic upper flange (3) is positioned at the top of top annular concrete (5), the lower end of foundation ring (6) and basic lower flange
(7) be connected, the upper end of foundation ring (6) pass be then passed through after base concrete (10) top annular concrete (5) with the basis of
Flange (3) is connected, and the lower end of tower (2) is connected with basic upper flange (3).
2. it is according to claim 1 based on fan foundation structure of the annular concrete with vertical prestressing, it is characterised in that also to wrap
Horizontal annular steel plate (4) is included, the internal face of horizontal annular steel plate (4) is connected with the lateral surface of basic upper flange (3).
3. it is according to claim 2 based on fan foundation structure of the annular concrete with vertical prestressing, it is characterised in that tower
(2) side is connected with the top of horizontal annular steel plate (4) by some trapezoidal steel plates (1).
4. it is according to claim 2 based on fan foundation structure of the annular concrete with vertical prestressing, it is characterised in that also to wrap
Some deformed bars (9) are included, wherein, the lower end of deformed bar (9) is located at base concrete (10) and radial ringed coagulation
Between native (8), the anchor of deformed bar (9) upper end is connected afterwards through top annular concrete (5) with horizontal annular steel plate (4)
Connect.
5. it is according to claim 1 based on fan foundation structure of the annular concrete with vertical prestressing, it is characterised in that radially
The bar-mat reinforcement in bar-mat reinforcement, base concrete (10) and the bar-mat reinforcement in top annular concrete (5) in annular concrete (8)
It is welded to each other.
6. it is according to claim 3 based on fan foundation structure of the annular concrete with vertical prestressing, it is characterised in that each ladder
Shape steel plate (1) is circumferentially sequentially distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180025.XA CN106592622A (en) | 2016-12-19 | 2016-12-19 | Annular concrete based wind-driven generator foundation structure with vertical prestress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180025.XA CN106592622A (en) | 2016-12-19 | 2016-12-19 | Annular concrete based wind-driven generator foundation structure with vertical prestress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106592622A true CN106592622A (en) | 2017-04-26 |
Family
ID=58601850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611180025.XA Pending CN106592622A (en) | 2016-12-19 | 2016-12-19 | Annular concrete based wind-driven generator foundation structure with vertical prestress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106592622A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638733A (en) * | 2017-03-07 | 2017-05-10 | 长安大学 | Method for reinforcing fan foundation through additionally-arranged horizontal steel bars |
| CN107100192A (en) * | 2017-06-19 | 2017-08-29 | 湖南科技大学 | A kind of foundation ring of wind generating set local stiffening device and reinforcement means |
| CN113756361A (en) * | 2021-08-10 | 2021-12-07 | 山东电力工程咨询院有限公司 | Foundation ring type fan foundation reinforcing structure and method |
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| WO2000043599A1 (en) * | 1999-01-22 | 2000-07-27 | Neg Micon A/S | A method and an assembly for casting a tower foundation |
| EP2570555A1 (en) * | 2011-09-16 | 2013-03-20 | General Electric Company | A tower base section of a wind turbine, a wind turbine and a system for mounting a tower |
| CN103938647A (en) * | 2014-05-14 | 2014-07-23 | 闵怡红 | Wind power generation tower prestress anchor bolt cage |
| CN104532871A (en) * | 2014-12-04 | 2015-04-22 | 瑞风能源（武汉）工程技术有限公司 | Fan foundation and pre-stress component for same |
| CN104791202A (en) * | 2015-04-17 | 2015-07-22 | 哈尔滨工业大学（威海） | Steel and concrete combined structure wind power tower |
| CN105040726A (en) * | 2015-08-04 | 2015-11-11 | 上海风畅土木工程技术有限公司 | Method for applying circular prestress on fan foundation connection |
| CN105297766A (en) * | 2015-11-19 | 2016-02-03 | 中国能源建设集团广西电力设计研究院有限公司 | Replaceable prestress anchor bolt draught fan foundation |
| CN205502052U (en) * | 2016-02-04 | 2016-08-24 | 上海勘测设计研究院有限公司 | Foundation structure suitable for prestressed rock stock wind turbine foundation |
-
2016
- 2016-12-19 CN CN201611180025.XA patent/CN106592622A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000043599A1 (en) * | 1999-01-22 | 2000-07-27 | Neg Micon A/S | A method and an assembly for casting a tower foundation |
| EP2570555A1 (en) * | 2011-09-16 | 2013-03-20 | General Electric Company | A tower base section of a wind turbine, a wind turbine and a system for mounting a tower |
| CN103938647A (en) * | 2014-05-14 | 2014-07-23 | 闵怡红 | Wind power generation tower prestress anchor bolt cage |
| CN104532871A (en) * | 2014-12-04 | 2015-04-22 | 瑞风能源（武汉）工程技术有限公司 | Fan foundation and pre-stress component for same |
| CN104791202A (en) * | 2015-04-17 | 2015-07-22 | 哈尔滨工业大学（威海） | Steel and concrete combined structure wind power tower |
| CN105040726A (en) * | 2015-08-04 | 2015-11-11 | 上海风畅土木工程技术有限公司 | Method for applying circular prestress on fan foundation connection |
| CN105297766A (en) * | 2015-11-19 | 2016-02-03 | 中国能源建设集团广西电力设计研究院有限公司 | Replaceable prestress anchor bolt draught fan foundation |
| CN205502052U (en) * | 2016-02-04 | 2016-08-24 | 上海勘测设计研究院有限公司 | Foundation structure suitable for prestressed rock stock wind turbine foundation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638733A (en) * | 2017-03-07 | 2017-05-10 | 长安大学 | Method for reinforcing fan foundation through additionally-arranged horizontal steel bars |
| CN107100192A (en) * | 2017-06-19 | 2017-08-29 | 湖南科技大学 | A kind of foundation ring of wind generating set local stiffening device and reinforcement means |
| CN113756361A (en) * | 2021-08-10 | 2021-12-07 | 山东电力工程咨询院有限公司 | Foundation ring type fan foundation reinforcing structure and method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170426 |
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| RJ01 | Rejection of invention patent application after publication |