CN101230579A - Annular bearing bottom plate grillage beam type wind-power generating tower foundation - Google Patents
Annular bearing bottom plate grillage beam type wind-power generating tower foundation Download PDFInfo
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- CN101230579A CN101230579A CNA2008100337819A CN200810033781A CN101230579A CN 101230579 A CN101230579 A CN 101230579A CN A2008100337819 A CNA2008100337819 A CN A2008100337819A CN 200810033781 A CN200810033781 A CN 200810033781A CN 101230579 A CN101230579 A CN 101230579A
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Abstract
The invention relates to a ring-shaped pressure bearing bottom plate checker-shaped beam type wind power generation tower foundation which consists of a concrete foundation slab, a socle beam, an edge trabecula, prestress cast-in fixing bolts, a concrete cushion, a soft backing plate and a concrete foundation center tube; the center of the ring-shaped concrete cushion is embedded with the soft backing plate, the concrete foundation slab is arranged on the concrete cushion and the soft backing plate, the concrete foundation center tube is arranged above the middle part of the concrete foundation slab, the socle beam extends from the concrete foundation center tube, both ends of the edge trabecula are connected with the socle beam so as to form a checker-shaped structure; the tube wall of the concrete foundation center tube is evenly buried with fixing bolts, all the fixing bolts form a fixing bolt group, the top of the fixing bolts is provided with a fixing bolt top slab; an adjusting screw nut is positioned below the fixing bolt top slab, and the top surface of the adjusting screw nut is on the same level with the top of the tub wall of the concrete foundation center tube. In the invention, the prestress cast-in fixing bolt style is adopted for connecting steel power feet of a wind power generation tower with the foundation; thereby the invention can ensure the rigid connection between a tower drum and the foundation, reduce the steel consumption of the part of the steel tower drum buried into the foundation, and simplify the construction of the part at the same time.
Description
Technical field
The present invention relates to a kind of wind power generation stepped foundation structure, be specifically related to a kind of annular bearing bottom plate grillage beam type wind-power generating tower foundation.
Background technology
Wind power generation stepped in basis on the hard foundation soil at present more adopts independent spread footings, its structure as shown in Figure 1, this independent spread footing is made up of encorbelment base plate 1 and head tower tube buried section 2, basis.Independent spread footing matches with suitable foundation condition can reach resistance to compression bearing capacity preferably, so in the housing construction base for post employing is arranged more.But for wind power generation stepped, superstructure to the active force master on basis if it were not for pressure but moment of flexure, so the anti-pressure ability of traditional independent spread footing is had a surplus bending resistance deficiency, thereby caused the bigger waste of basic engineering.
Existing wind power generation stepped independent spread footing adopts thickening degree cantilevered plate as sole plate more, because the basic plane size is big, the length of encorbelmenting of plate is big, and the stressed back of outrigger base structure effect is very big, so the basis is uneconomical, invests bigger.
Summary of the invention
The object of the present invention is to provide a kind of annular bearing bottom plate grillage beam type wind-power generating tower foundation.
The annular bearing bottom plate grillage beam type wind-power generating tower foundation that the present invention proposes, form by concrete foundation base plate 3, semi girder 4, edge girder 5, prestressing force cast-in fixing bolt 6, concrete cushion 7, soft backing plate 8 and concrete foundation central tube 9, its structure such as Fig. 2-shown in Figure 4.Wherein, concrete cushion 7 is form ringwise, wherein intracardiacly be embedded with soft backing plate 8, bed course 7 and backing plate are provided with concrete foundation base plate 3 more than 8, top, concrete foundation base plate 3 middle parts is provided with concrete foundation central tube 9, semi girder 4 is protruding by concrete foundation central tube 9, and girder 5 two ends in edge are connected in semi girder 4, forms the groined type structure; Evenly be embedded with crab-bolt 6 in the barrel of concrete foundation central tube 9, each crab-bolt 6 is formed a crab-bolt group, crab-bolt group top is provided with crab-bolt top board 11, and the crab-bolt top board is adjusting nut 12 below 11, and crab-bolt top board 11 end faces are concordant with the barrel top of concrete foundation central tube 9.
Among the present invention, described soft backing plate 8 adopts foamed polystyrene board.
Among the present invention, described crab-bolt 6 is 200-300.
Among the present invention, the reverse balance flange 10 in tower tube lower end is connected in crab-bolt 6.Wherein, oppositely balance flange 10 has been applied for Chinese patent, and the application number of this Chinese patent is ZL 200620045883.9.
The bottom surface on basis of the present invention only circumferential annular plane links to each other with ground, and its central circular is made liner with foamed polystyrene board, so that sole plate center and ground can not transmit compressive stress.Because the basis reduces with the actual bearing area of ground, the compressive stress on the basic annular compression face has increased, and can be used for resisting the pull out force that the superstructure moment of flexure causes foundation bed, thereby reduces foundation ' s bottom area.
Among the present invention, as main bending resistance component, and surround the base center tube of wind-power electricity generation Tata tube with beam, with the engineering quantity of minimizing base concrete with the trave depth of beam.
Among the present invention, change wind power generation stepped head tower pin and being connected of basis into prestressing force crab-bolt formula by tower tube flush type.Rigidly connectedly reduce the steel using amount that the head tower tube is imbedded foundation simultaneously what guarantee tower tube and basis, also simplified the construction of this part simultaneously.
Description of drawings
Fig. 1 is existing wind power generation stepped independent spread footing structural diagrams.
Fig. 2 illustrates for plane structure of the present invention.
Fig. 3 illustrates for cross-section structure of the present invention.
Fig. 4 is that annular bearing bottom plate grillage beam type wind-power generating tower foundation prestressing force crab-bolt 6 is connected detail drawing with the tower tube.
Number in the figure: 1 is the basis base plate of encorbelmenting, 2 is head tower tube buried section, and 3 is the annular bearing sole plate, and 4 is semi girder, 5 is the edge girder, 6 is crab-bolt, and 7 is concrete cushion, and 8 is soft backing plate, 9 is the concrete foundation central tube, 10 is the reverse balance flange in tower tube lower end, and 11 is the crab-bolt top board, and 12 is adjusting nut.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Shown in Fig. 2,3,4, this base form mainly comprises annular bearing sole plate 3, semi girder 4, edge girder 5, prestressing force cast-in fixing bolt 6, annular concrete bed course 7, foamed polystyrene board backing plate 8.Wherein, concrete cushion 7 is form ringwise, the wherein intracardiac foamed polystyrene board backing plate 8 that is embedded with, bed course 7 and foamed polystyrene board backing plate are provided with concrete foundation base plate 3 more than 8, top, concrete foundation base plate 3 middle parts is provided with concrete foundation central tube 9, semi girder 4 is protruding by concrete foundation central tube 9, and girder 5 two ends in edge are connected in semi girder 4, forms the groined type structure; Evenly be embedded with crab-bolt 6 in the barrel of concrete foundation central tube 9, crab-bolt 6 is 200-300, forms a crab-bolt group, and crab-bolt group top is provided with crab-bolt top board 11, the crab-bolt top board is adjusting nut 12 below 11, and crab-bolt top board 11 end faces are concordant with the barrel top of concrete foundation central tube 9.Working procedure is as follows:
(1) excavation pit;
(2) with the circular expanded polystyrene (EPS) backing plate 8 of sealing tape fixed center;
(3) water and smash annular concrete bed course 7;
(4) all cheek boards of installation sole plate 3;
(5) prick sole plate 3 reinforcing bars, and the reinforcing bar colligation simultaneously of semi girder 4, edge girder 5 and the concrete foundation central tube 9 of all anchors to the sole plate 3 is in place;
(6) water and smash sole plate 3 concrete;
(7) prick sole plate 3 above semi girders 4 and other reinforcing bar of edge girder 5 and the reinforcing bar of concrete foundation central tube 9, and crab-bolt 6 is installed;
(8) template of installation sole plate 3 above semi girders 4, edge girder 5 and concrete foundation central tube 9;
(9) pouring concrete is to following 0.3 meter of basic end face;
(10) maintenance;
(11) adjusting nut 12 under the adjustment crab-bolt top board is with 11 leveling of crab-bolt top board;
(12) water the concrete of smashing the 0.3 meter height in top;
(13) coxopodite tower tube is installed, after the adjustment in place crab-bolt 6 is applied pretension, fix with nut.
Claims (4)
1. annular bearing bottom plate grillage beam type wind-power generating tower foundation, by concrete foundation base plate (3), semi girder (4), edge girder (5), prestressing force cast-in fixing bolt (6), concrete cushion (7), soft backing plate (8) and concrete foundation central tube (9) are formed, it is characterized in that concrete cushion (7) form ringwise, the wherein intracardiac soft backing plate (8) that is embedded with, bed course (7) and be provided with concrete foundation base plate (3) more than the backing plate (8), top, concrete foundation base plate (3) middle part is provided with concrete foundation central tube (9), semi girder (4) is protruding by concrete foundation central tube (9), edge girder (5) two ends are connected in semi girder (4), form the groined type structure; Evenly be embedded with crab-bolt (6) in the barrel of concrete foundation central tube (9), each crab-bolt (6) is formed a crab-bolt group, crab-bolt group top is provided with crab-bolt top board (11), crab-bolt top board (11) is following to be adjusting nut (12), and crab-bolt top board (11) end face is concordant with the barrel top of concrete foundation central tube (9).
2. annular bearing bottom plate grillage beam type wind-power generating tower foundation according to claim 1 is characterized in that described soft backing plate (8) adopts foamed polystyrene board.
3. annular bearing bottom plate grillage beam type wind-power generating tower foundation according to claim 1 is characterized in that described crab-bolt (6) is 200-300.
4. annular bearing bottom plate grillage beam type wind-power generating tower foundation according to claim 1 is characterized in that the reverse balance flange in tower tube lower end (10) is connected in crab-bolt (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100337819A CN101230579A (en) | 2008-02-21 | 2008-02-21 | Annular bearing bottom plate grillage beam type wind-power generating tower foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100337819A CN101230579A (en) | 2008-02-21 | 2008-02-21 | Annular bearing bottom plate grillage beam type wind-power generating tower foundation |
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| CN101230579A true CN101230579A (en) | 2008-07-30 |
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| CNA2008100337819A Pending CN101230579A (en) | 2008-02-21 | 2008-02-21 | Annular bearing bottom plate grillage beam type wind-power generating tower foundation |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586344B (en) * | 2009-04-23 | 2010-09-15 | 沈阳瑞祥风能设备有限公司 | Square pressure-bearing grid-embedded wind power generation power foundation of wind power generating set |
| CN101532295B (en) * | 2009-04-17 | 2011-02-02 | 从卫民 | Foundation for wind-powered generator |
| CN101550703B (en) * | 2009-05-06 | 2011-03-30 | 中国水电顾问集团西北勘测设计研究院 | Method for designing reinforced concrete foundation or pile cap |
| CN102162256A (en) * | 2010-08-06 | 2011-08-24 | 天津道达渤海新能源开发有限公司 | Maritime foundation base |
| CN102454168A (en) * | 2010-10-15 | 2012-05-16 | 汤跃超 | Integral continuously-adjustable foundation for power transmission and transformation pole tower |
| CN103953058A (en) * | 2014-03-07 | 2014-07-30 | 江苏金海新能源科技有限公司 | Coaxial steel tube foundation |
| 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 |
| CN105756081A (en) * | 2016-05-05 | 2016-07-13 | 江苏金海新能源科技有限公司 | Self-tapered end prestress wire circular truncated cone concrete drum offshore wind turbine foundation and construction method thereof |
| WO2020182957A1 (en) * | 2019-03-13 | 2020-09-17 | Cte Wind Civil Engineering | Method for creating the earthworks for the foundations of a land-based wind turbine |
-
2008
- 2008-02-21 CN CNA2008100337819A patent/CN101230579A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532295B (en) * | 2009-04-17 | 2011-02-02 | 从卫民 | Foundation for wind-powered generator |
| CN101586344B (en) * | 2009-04-23 | 2010-09-15 | 沈阳瑞祥风能设备有限公司 | Square pressure-bearing grid-embedded wind power generation power foundation of wind power generating set |
| CN101550703B (en) * | 2009-05-06 | 2011-03-30 | 中国水电顾问集团西北勘测设计研究院 | Method for designing reinforced concrete foundation or pile cap |
| CN102162256A (en) * | 2010-08-06 | 2011-08-24 | 天津道达渤海新能源开发有限公司 | Maritime foundation base |
| CN102162256B (en) * | 2010-08-06 | 2015-07-08 | 江苏道达海上风电工程科技有限公司 | Maritime foundation base |
| CN102454168A (en) * | 2010-10-15 | 2012-05-16 | 汤跃超 | Integral continuously-adjustable foundation for power transmission and transformation pole tower |
| CN105544590A (en) * | 2010-10-15 | 2016-05-04 | 汤跃超 | Base used for power transmission and transformation project tower and capable of being continuously adjusted as whole |
| CN103953058A (en) * | 2014-03-07 | 2014-07-30 | 江苏金海新能源科技有限公司 | Coaxial steel tube foundation |
| CN103953058B (en) * | 2014-03-07 | 2018-04-10 | 江苏金海新能源科技有限公司 | Coaxial steel cylinder basis |
| 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 |
| CN105756081A (en) * | 2016-05-05 | 2016-07-13 | 江苏金海新能源科技有限公司 | Self-tapered end prestress wire circular truncated cone concrete drum offshore wind turbine foundation and construction method thereof |
| WO2020182957A1 (en) * | 2019-03-13 | 2020-09-17 | Cte Wind Civil Engineering | Method for creating the earthworks for the foundations of a land-based wind turbine |
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Open date: 20080730 |