CN202265838U - Multidirectional prestress foundation of wind driven generator - Google Patents
Multidirectional prestress foundation of wind driven generator Download PDFInfo
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- CN202265838U CN202265838U CN2011202882431U CN201120288243U CN202265838U CN 202265838 U CN202265838 U CN 202265838U CN 2011202882431 U CN2011202882431 U CN 2011202882431U CN 201120288243 U CN201120288243 U CN 201120288243U CN 202265838 U CN202265838 U CN 202265838U
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- prestress
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Abstract
The utility model relates to a multidirectional prestress foundation of a wind driven generator, which is composed of a reinforced concrete foundation, a vertical prestress anchor bolt combined piece and a horizontal prestress steel strand combined piece. The vertical prestress anchor bolt combined piece is composed of an upper anchor plate, a lower anchor plate and a prestress anchor bolt, the lower anchor plate is located below the foundation, and a vertical prestress anchor bolt is anchored on the foundation, penetrates through the foundation and the upper anchor plate and is connected with a tower barrel bottom flange. The horizontal prestress steel strand combined piece is composed of a prestress steel strand and anchor devices, the anchor devices are evenly distributed at the edge of the foundation in the circumferential direction, and the symmetrical anchor devices are connected through the prestress steel strand. The multidirectional prestress foundation is free of slits in main body structure, thereby being favorable for durability of concrete and corrosion resistance of the foundation immersed in underground water and sea water and having freezing-melting circulation effect. Reinforcing steel bars of the foundation do not need special anti-corroding treatment of coating epoxy resin. A fatigue stress range of the reinforcing steel bars of the foundation like fan foundations which bear fatigue dynamic load is greatly reduced, thereby being favorable for fatigue resistance.
Description
Technical field
The utility model belongs to wind driven generator base prestressing technique field, is specifically related to the multidirectional prestressing force of a kind of wind-driven generator basis.
Background technology
Wind-power electricity generation is the main mode of Wind Power Utilization, and it is its development trend that generating set maximizes.Wind driven generator base is generally the spread footing of major diameter independence, and Generator Set requires the basis of larger diameter to bear upper load.Cantilever member root Concrete Crack Control control usefulness often in basic engineering is calculated in major diameter basis is particularly at corrosive environment and high height above sea level cold districts such as intertidal zones.The tradition basis adopts discharge ring to connect tower tube and basis, causes junction rigidity and intensity picture, is prone to produce concentrating of stress and crack, causes the brittle fracture of connection.Adopt vertical prestressed anchor to tie and connect tower tube and basis, overcome the strength and stiffness sudden change on discharge ring basis, base concrete is in pressured state in the prestressing force crab-bolt sphere of action, does not produce the crack, improves the durability on basis.Cantilever member root Concrete Crack Control control usefulness often in basic engineering is calculated in major diameter basis is particularly at corrosive environment and high height above sea level cold districts such as intertidal zones.The tradition basis can only be through increasing the effect that reinforcing bar reaches the control crack, and this increases material usage greatly.Replace main muscle with level to prestress wire, design strength improves, thereby steel using amount can reduce, and the basis is along prestress wire direction free from flaw in principle, and arrangement of reinforcement does not receive control of crack width, so amount of reinforcement is less.Basic economy property is improved.Tradition is concentrated owing to connect and loading characteristic antifatigue load action poor performance.After adopting multidirectional prestressing force, for this basis of bearing tired dynamic loading of similar blower foundation, the reinforcing bar Fatigue Stress Amplitude reduces much to help antifatigue.
Summary of the invention
The purpose of the utility model is to provide the multidirectional prestressing force of a kind of wind-driven generator basis.
The multidirectional prestressing force of the wind-driven generator that the utility model proposes basis; Form to prestress wire composite member 3 by reinforced concrete foundation 1, vertical prestressing crab-bolt composite member 2 and level; Wherein: vertical prestressing crab-bolt composite member 2 is by last anchor slab 4, anchor slab 5 and prestressing force crab-bolt 6 are formed down; Following anchor slab 5 is positioned at reinforced concrete foundation 1 below; Prestressing force crab-bolt 6 vertically is arranged on the reinforced concrete foundation 1, and vertical prestressing crab-bolt 6 one ends pass down anchor slab 5, reinforced concrete foundation 1 and last anchor slab 4 successively, and the other end is connected with flange 7 at the bottom of the tower tube; Level is made up of prestress wire 8 and ground tackle 9 to prestress wire composite member 3, and ground tackle 9 hoops are distributed in reinforced concrete foundation 1 edge, and reinforced concrete foundation 1 connects the ground tackle 9 of symmetry through prestress wire 8.
In the utility model, flange 7 adopts vertical prestressing crab-bolt composite member 2 to link to each other with reinforced concrete foundation 1 at the bottom of the tower tube.
In the utility model, level and adopts ground tackle 9 to be anchored at reinforced concrete foundation 1 outer rim to prestress wire 8 level in reinforced concrete foundation 1 to even layout.
The utlity model has following beneficial effect:
1. adopt prestressed anchor to tie and connect tower tube and basis, overcome the strength and stiffness sudden change on discharge ring basis, base concrete is in pressured state in the prestressing force crab-bolt sphere of action, does not produce the crack, improves the durability on basis.
2. replace main muscle with level to prestress wire, design strength improves, thereby steel using amount can reduce, and the basis is along prestress wire direction free from flaw in principle, and arrangement of reinforcement does not receive control of crack width, so amount of reinforcement is less.
3. basic agent structure free from flaw to being immersed in underground water, the seawater, has the basic anticorrosion and the concrete durability of freeze thawing ringing favourable, and reinforcement foundation need not be coated with the special preservative treatment of epoxy resin.
4. after adopting multidirectional prestressing force, for this basis of bearing tired dynamic loading of similar blower foundation, the reinforcing bar Fatigue Stress Amplitude reduces much to help antifatigue.
Description of drawings
Fig. 1 is the multidirectional prestressing force foundation layout plan of wind-driven generator.
Fig. 2 is the multidirectional prestressing force of a wind-driven generator basis sectional drawing.
Label among the figure: 1 is reinforced concrete foundation, and 2 is vertical prestressing crab-bolt composite member, 3 be level to the prestress wire composite member, 4 is last anchor slab, 5 are following anchor slab, 6 is the prestressing force crab-bolt, 7 is flange at the bottom of the tower tube, 8 is prestress wire, 9 is ground tackle.
The specific embodiment
Combine accompanying drawing to further specify the utility model through embodiment below.
Embodiment 1:
The utility model is made up of to prestress wire composite member 3 wind-driven generator reinforced concrete foundation 1, vertical prestressing crab-bolt composite member 2 and level.Wherein vertical prestressing crab-bolt composite member 2 is by last anchor slab 4, anchor slab 5 and prestressing force crab-bolt 6 are formed down; Following anchor slab 5 is positioned at 1 below, reinforced concrete foundation basis; Make 6 anchorings of vertical prestressing crab-bolt and basis 1; Vertical prestressing crab-bolt 6 is passed reinforced concrete foundation 1 and last anchor slab 4, and is connected with flange 7 at the bottom of the tower tube.Level is made up of prestress wire 8 and ground tackle 9 to prestress wire composite member 3, and ground tackle 9 is uniformly distributed with at the edge of foundation hoop, and connects the ground tackle 9 of symmetry with prestress wire 8.The utility model was embedded in vertical prestressing crab-bolt composite member 2 and level in the reinforced concrete foundation 1 to prestress wire composite member 3 in 1 construction stage of reinforced concrete foundation; Base concrete applies pretightning force to level to prestress wire composite member 3 after reaching intensity, when the tower tube is installed vertical prestressing crab-bolt composite member 2 is applied pretightning force.
The utility model construction sequence is following:
1. before reinforced concrete foundation 1 construction, arrange anchor slab 5, prestressing force crab-bolt 6 and last anchor slab 4 down successively, form complete vertical prestressing crab-bolt composite member 2.
2. after reinforced concrete foundation 1 reinforcing bar binding was accomplished, arrangement prestress steel strand 8 and ground tackle 9 successively in the basis formed complete level to prestress wire composite member 3.
3. after the concrete of reinforced concrete foundation 1 reaches design strength, prestress wire 8 is applied pretightning force, and be anchored on the ground tackle 9.
4. behind the tower tube hoisted in position, prestressing force crab-bolt 6 is connected with flange 7 at the bottom of the tower tube, and it is applied pretightning force.
Claims (1)
1. the multidirectional prestressing force of wind-driven generator is basic; Form to prestress wire composite member (3) by reinforced concrete foundation (1), vertical prestressing crab-bolt composite member (2) and level; It is characterized in that vertical prestressing crab-bolt composite member (2) is by last anchor slab (4), down anchor slab (5) and prestressing force crab-bolt (6) are formed; Following anchor slab (5) is positioned at reinforced concrete foundation (1) below; Prestressing force crab-bolt (6) vertically is arranged on the reinforced concrete foundation (1), and vertical prestressing crab-bolt (6) one ends pass down anchor slab (5), reinforced concrete foundation (1) and last anchor slab (4) successively, and the other end is connected with flange (7) at the bottom of the tower tube; Level is made up of prestress wire (8) and ground tackle (9) to prestress wire composite member (3), and ground tackle (9) hoop is distributed in reinforced concrete foundation (1) edge, and reinforced concrete foundation (1) connects the ground tackle (9) of symmetry through prestress wire (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202882431U CN202265838U (en) | 2011-08-10 | 2011-08-10 | Multidirectional prestress foundation of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202882431U CN202265838U (en) | 2011-08-10 | 2011-08-10 | Multidirectional prestress foundation of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202265838U true CN202265838U (en) | 2012-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202882431U Expired - Lifetime CN202265838U (en) | 2011-08-10 | 2011-08-10 | Multidirectional prestress foundation of wind driven generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN202265838U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266621A (en) * | 2013-05-21 | 2013-08-28 | 孟庆波 | Steel strand prestress base structure of wind driven generator and construction method thereof |
| CN103696448A (en) * | 2013-12-17 | 2014-04-02 | 北京金风科创风电设备有限公司 | Anti-corrosion structure and anti-corrosion method of fan foundation prestressed component and fan foundation |
| 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 |
| CN104988944A (en) * | 2015-07-17 | 2015-10-21 | 中国能源建设集团云南省电力设计院有限公司 | Prestressed anchor bolt type annular draught fan foundation |
| 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 |
| CN113089738A (en) * | 2021-03-30 | 2021-07-09 | 中国电建集团成都勘测设计研究院有限公司 | Method for repairing pre-stressed anchor bolt foundation of tower cylinder of installed fan |
-
2011
- 2011-08-10 CN CN2011202882431U patent/CN202265838U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266621A (en) * | 2013-05-21 | 2013-08-28 | 孟庆波 | Steel strand prestress base structure of wind driven generator and construction method thereof |
| CN103266621B (en) * | 2013-05-21 | 2015-04-22 | 孟庆波 | Steel strand prestress base structure of wind driven generator and construction method thereof |
| CN103696448A (en) * | 2013-12-17 | 2014-04-02 | 北京金风科创风电设备有限公司 | Anti-corrosion structure and anti-corrosion method of fan foundation prestressed component and fan foundation |
| CN103696448B (en) * | 2013-12-17 | 2016-05-18 | 北京金风科创风电设备有限公司 | Anti-corrosion structure and anti-corrosion method of fan foundation prestressed component and fan foundation |
| 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 |
| CN104988944A (en) * | 2015-07-17 | 2015-10-21 | 中国能源建设集团云南省电力设计院有限公司 | Prestressed anchor bolt type annular draught fan foundation |
| 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 |
| CN113089738A (en) * | 2021-03-30 | 2021-07-09 | 中国电建集团成都勘测设计研究院有限公司 | Method for repairing pre-stressed anchor bolt foundation of tower cylinder of installed fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |