CN104988944A - Prestressed anchor bolt type annular draught fan foundation - Google Patents
Prestressed anchor bolt type annular draught fan foundation Download PDFInfo
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- CN104988944A CN104988944A CN201510422362.4A CN201510422362A CN104988944A CN 104988944 A CN104988944 A CN 104988944A CN 201510422362 A CN201510422362 A CN 201510422362A CN 104988944 A CN104988944 A CN 104988944A
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- prestressed anchor
- annular
- reinforced concrete
- draught fan
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Abstract
A prestressed anchor bolt type annular draught fan foundation comprises an annular reinforced concrete foundation body, a foundation bottom plate and high-strength prestressed anchor bolts. The foundation bottom plate is located below the annular reinforced concrete foundation body. The high-strength prestressed anchor bolts are pre-buried and penetrate the annular reinforced concrete foundation body, and the high-strength prestressed anchor bolts are distributed around the center of the foundation body in a central symmetry mode. The prestressed anchor bolt type annular draught fan foundation has the beneficial effects that the more reasonable annular foundation body is arranged; the rigidity and the stress configuration of a draught fan foundation system are reasonable; the base disengagement area margin is larger, and therefore the phenomenon that a foundation edge is disengaged from the foundation soil under the action of large torque, and even the foundation edge collapses is avoided; and meanwhile, the prestressed anchor bolt type annular draught fan foundation is excellent in safety, applicability and durability. The prestressed anchor bolt type annular draught fan foundation is simple in structure and easy to construct. The reinforced concrete volume can also be substantially saved, and economical performance is good.
Description
Technical field
The present invention relates to land blower foundation field, be specifically related to a kind of prestressed anchor hydrant annular blower foundation, be mainly applicable to the construction of the land blower fan of Plain and the requirement of high mountain wind power plant environment and technical characterstic.
Background technology
At present, land blower foundation many employings reinforced concrete spread foundation conventional both at home and abroad, common form comprises: the large plate base of circular enlargement formula, circular rib slab foundation, polygon rib beam type basis, prestressed anchor is basic, prestressed bolt is basic and prestressed bolt anchor rod foundation etc.These base forms still belong to traditional circular table or column type gravity-type basis, and base form is single, can not adapt to different topographic and geologic conditions, and base concrete consumption is large, from great; Although prestressed anchor is basic, prestressed bolt is basic and prestressed bolt anchor rod foundation, by to crab-bolt or anchor pole Shi Hanzhang, realize blower fan tower barrel to be connected with basis and the reliable of ground, but blower fan still has the risk of toppling together with basis under larger moment load effect.
Summary of the invention
The present invention is namely for the problems referred to above, a kind of prestressed anchor hydrant annular fan foundation structure taking into account economy and reliability is provided, optimize sole plate and basic contact surface, the rigidity of reasonable disposition blower foundation system and stressing conditions, improve basic resistance to capsizing, substantially save Square Reinforced Concrete amount simultaneously, reduce difficulty of construction, improve economy.
For achieving the above object, technical scheme of the present invention is:
A kind of prestressed anchor hydrant annular blower foundation, comprises annular reinforced concrete foundation, sole plate and highstrength prestressed anchor bolt.Described sole plate is positioned under described annular reinforced concrete foundation, and described highstrength prestressed anchor bolt is pre-buried and run through described annular reinforced concrete foundation, is that center is uniformly distributed around base center.Base concrete build shaping after, high-strength anchor bolt is applied in pre-tensile stress, makes crab-bolt and concrete become a better base integral of fastness.
Annular steel concrete is hollow structure, and so design can effectively reduce Square Reinforced Concrete amount when increasing basal diameter, makes the stressing conditions of basic system and rigidity be able to reasonable disposition, and increases substrate disengagement area margin, improves resistance to capsizing.Before installing tower cylinder, cavity covers in reality.
Simultaneously, prestressing force is centrosymmetric around base center distribution, for the connection between blower fan pylon and basis, ensureing the reliably rigidly connected steel using amount that simultaneously reduce steel tower buried foundation part of pylon with basis, and cancel traditional discharge ring, also reduce steel using amount, reliability and economy are taken into account.
Described prestressed anchor hydrant annular blower foundation, requires that the bottom one section of cylindrical shell of steel tower tube adds heavy grade, transits to the steel tower tube that 6 ~ 8m diameter is formed on basic top.
Described prestressed bolt is 157 ~ 210, is that center is uniformly distributed around base center.
The described crab-bolt of prestressed anchor hydrant annular blower foundation and the angle of base center are 0 °.
In order to reduce steel using amount further, reduce production difficulty, cost-saving, the present invention is extended to prestressed anchor hydrant annular housing blower foundation, in this basis, the angle α of crab-bolt and base center depends on basic place landform geological conditions and wind load.Compared to annular basis, the stressed and power transmission mechanism of annular shell structure is more direct, and concrete consumption is also lower.
Technique effect of the present invention is embodied in: by reinforced concrete foundation being set to the annular of hollow, suitably effectively Square Reinforced Concrete amount is reduced when increasing basal diameter, the stressing conditions of basic system and rigidity is made to be able to reasonable disposition, and increase substrate disengagement area margin, effectively alleviate edge of foundation and throw off the phenomenon of even toppling with foundation soil under larger Moment.Substantially save Square Reinforced Concrete amount simultaneously, reduce difficulty of construction, improve economy.
Accompanying drawing explanation
Fig. 1 is described prestressed anchor hydrant annular blower foundation floor map;
Fig. 2 is described prestressed anchor hydrant annular blower foundation half sectional view;
Fig. 3 is described prestressed anchor hydrant annular housing blower foundation floor map;
Fig. 4 is described prestressed anchor hydrant annular housing blower foundation half sectional view;
Accompanying drawing illustrates: 1, annular blower foundation; 2, highstrength prestressed anchor bolt; 3, sole plate; 4, blower fan tower barrel; 5, annular housing blower foundation.
Detailed description of the invention
Below in conjunction with accompanying drawing, stress anchor bolt type annular blower foundation of the present invention is described further.
See Fig. 1 and Fig. 2, a kind of prestressed anchor hydrant of the present invention annular blower foundation, comprises annular reinforced concrete foundation 1, highstrength prestressed anchor bolt 2 and sole plate 3.Described sole plate 3 is positioned under described annular reinforced concrete foundation 1, and described highstrength prestressed anchor bolt 2 is pre-buried and run through described annular reinforced concrete foundation 1, and be centrosymmetric around base center distribution.Base concrete build shaping after, high-strength anchor bolt is applied in pre-tensile stress, makes crab-bolt and concrete become a better base integral of fastness.Tower cylinder 4 after expansion is connected with being built on the rock by its flange in the bottom.
Preferably, described prestressed bolt is 157 ~ 210, and be centrosymmetric around base center distribution.
Preferably, the described crab-bolt of prestressed anchor hydrant annular blower foundation and the angle of base center are 0 °.
See Fig. 3 and Fig. 4, be a kind of preferred embodiment of the present invention: prestressed anchor hydrant annular housing blower foundation, comprises annular housing reinforced concrete foundation 5 and highstrength prestressed anchor bolt 2.Described highstrength prestressed anchor bolt 2 is pre-buried and run through described annular reinforced concrete foundation 5, and be centrosymmetric around base center distribution.
Preferably, the described crab-bolt of prestressed anchor hydrant annular blower foundation and the angle α of base center depend on basic place landform geological conditions and wind load.。
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. a prestressed anchor hydrant annular blower foundation, is characterized in that, comprises the annular reinforced concrete foundation (1) of hollow, sole plate (3) and highstrength prestressed anchor bolt (2); Described sole plate (3) is positioned under described annular reinforced concrete foundation, described highstrength prestressed anchor bolt (2) is pre-buried and run through described annular reinforced concrete foundation (1), is evenly distributed around annular reinforced concrete foundation (1) center; Blower fan tower barrel (4) is directly connected with annular reinforced concrete foundation (1) by its end flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510422362.4A CN104988944A (en) | 2015-07-17 | 2015-07-17 | Prestressed anchor bolt type annular draught fan foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510422362.4A CN104988944A (en) | 2015-07-17 | 2015-07-17 | Prestressed anchor bolt type annular draught fan foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104988944A true CN104988944A (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510422362.4A Pending CN104988944A (en) | 2015-07-17 | 2015-07-17 | Prestressed anchor bolt type annular draught fan foundation |
Country Status (1)
| Country | Link |
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| CN (1) | CN104988944A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101230579A (en) * | 2008-02-21 | 2008-07-30 | 同济大学 | Annular bearing bottom plate grillage beam type wind-power generating tower foundation |
| CN201411704Y (en) * | 2009-05-06 | 2010-02-24 | 中国水电顾问集团西北勘测设计研究院 | Reinforced concrete foundation or pile cap |
| CN202265838U (en) * | 2011-08-10 | 2012-06-06 | 同济大学建筑设计研究院(集团)有限公司 | Multidirectional prestress foundation of wind driven generator |
| CN103821676A (en) * | 2014-02-12 | 2014-05-28 | 北京金风科创风电设备有限公司 | Tower foundation of wind generating set |
| EP2743170A1 (en) * | 2012-12-14 | 2014-06-18 | Alstom Wind, S.L.U. | Tension leg platform structure for a wind turbine with pre-stressed tendons |
| CN204898703U (en) * | 2015-07-17 | 2015-12-23 | 中国能源建设集团云南省电力设计院有限公司 | Prestressed anchorage ties formula ring shape fan basis |
-
2015
- 2015-07-17 CN CN201510422362.4A patent/CN104988944A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101230579A (en) * | 2008-02-21 | 2008-07-30 | 同济大学 | Annular bearing bottom plate grillage beam type wind-power generating tower foundation |
| CN201411704Y (en) * | 2009-05-06 | 2010-02-24 | 中国水电顾问集团西北勘测设计研究院 | Reinforced concrete foundation or pile cap |
| CN202265838U (en) * | 2011-08-10 | 2012-06-06 | 同济大学建筑设计研究院(集团)有限公司 | Multidirectional prestress foundation of wind driven generator |
| EP2743170A1 (en) * | 2012-12-14 | 2014-06-18 | Alstom Wind, S.L.U. | Tension leg platform structure for a wind turbine with pre-stressed tendons |
| CN103821676A (en) * | 2014-02-12 | 2014-05-28 | 北京金风科创风电设备有限公司 | Tower foundation of wind generating set |
| CN204898703U (en) * | 2015-07-17 | 2015-12-23 | 中国能源建设集团云南省电力设计院有限公司 | Prestressed anchorage ties formula ring shape fan basis |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |