CN105544593A - Wind power generation tower foundation with prefabricated foundation prestressed beams and slab - Google Patents
Wind power generation tower foundation with prefabricated foundation prestressed beams and slab Download PDFInfo
- Publication number
- CN105544593A CN105544593A CN201610065800.0A CN201610065800A CN105544593A CN 105544593 A CN105544593 A CN 105544593A CN 201610065800 A CN201610065800 A CN 201610065800A CN 105544593 A CN105544593 A CN 105544593A
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- Prior art keywords
- concrete
- foundation
- prefabricated
- girder
- prestressed
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- 238000010248 power generation Methods 0.000 title abstract description 9
- 239000004567 concrete Substances 0.000 claims abstract description 82
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 4
- 238000009417 prefabrication Methods 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 238000005452 bending Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1607—Shapes round, e.g. circle
- E02D2200/1614—Shapes round, e.g. circle made from single element
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0046—Production methods using prestressing techniques
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a wind power generation tower foundation with prefabricated foundation prestressed beams and slab. The wind power generation tower foundation with prefabricated foundation prestressed beams and slab comprises a concrete cushion on which a concrete foundation slab is arranged; a circular-arc-shaped concrete column pier is arranged in the middle of the concrete foundation slab; edge small beams are arranged on parts, close to edges, of the concrete foundation slab, and the circular-arc-shaped concrete column pier and the edge small beams, and two adjacent edge small beams are connected by means of prefabricated cantilever beams; prestressed anchor bolts are uniformly buried in the concrete column pier, and one end of each prestressed anchor bolt is connected with a lower foundation anchor plate, while the other end of the same is connected with a tower tube; voids are uniformly formed in the prefabricated cantilever beam, and the prefabricated cantilever beams are in prestressed connection with the concrete foundation slab by using prestressed bolts in the voids. Rigid connection of the tower tube with the foundation is guaranteed, the amount of the steel utilized is reduced, and the construction of such a part is also simplified simultaneously.
Description
Technical field
The present invention relates to a kind of wind power generation stepped foundation structure, particularly relate to a kind of basic precast prestressed beam and slab type generation power foundation of wind power.
Background technology
Wind power generation stepped in basis on hard foundation soil at present more adopts independent spread footing, this independent spread footing is encorbelmented by basis, and base plate, stub and discharge ring form, strut beam slab foundation.Independent spread footing matches with suitable foundation condition can reach good Compressive Bearing Capacity, so have employing in housing construction base for post more.But for wind power generation stepped, superstructure is 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 is not enough, thus causes the larger waste of basic engineering.
Base plate based on existing wind power generation stepped independent spread footing many employings Varying-thickness cantilevered plate, because foundation plan size is large, the cantilever span of plate is large, and the stressed rear structure effect of outrigger base is very large, therefore basis is uneconomical, invests larger.
In the work progress of existing strut beam slab foundation between beam and plate, reinforcing bar binding, shuttering supporting bother very much, cause construction period very long, and corresponding cost increases.
Summary of the invention
The object of this invention is to provide that a kind of good rigidly, steel using amount are little, simple basic precast prestressed beam and slab type generation power foundation of wind power of constructing.
The object of the invention is to be achieved through the following technical solutions:
The precast prestressed beam and slab type generation power foundation of wind power in basis of the present invention, comprise concrete cushion, described concrete cushion is annular, described concrete cushion is provided with concrete foundation base plate, the middle part of described concrete foundation base plate is provided with annular concrete stub, the described concrete foundation base plate place of keeping to the side is provided with edge girder, described former annular concrete stub is connected by prefabricated semi girder with between described edge girder and between two adjacent edge girders, described prefabricated semi girder and described edge girder stretch out bar connecting by end is prefabricated, described prefabricated semi girder and concrete stub stretch out bar connecting by top is prefabricated,
Evenly bury prestressed bolt underground in described concrete stub, described prestressed bolt one end is connected with anchor slab under basis, and the other end is connected with tower cylinder;
Evenly be provided with cavity in described prefabricated semi girder, be connected with described concrete foundation base plate prestressing force by described prefabricated semi girder with described prestressed bolt in cavity, described prefabricated semi girder is connected by anchor plate, ground tackle with between cavity;
Reinforcing bar is arranged in described prefabricated semi girder inside in prefabrication process, and described concrete stub internal placement reinforcing bar, described edge trabecular interior is furnished with reinforcing bar.
As seen from the above technical solution provided by the invention, the precast prestressed beam and slab type generation power foundation of wind power in the basis that the embodiment of the present invention provides, because basis and the actual bearing area of ground reduce, compressive stress on the annular compression face in basis increases, can be used for resisting the pull out force that superstructure moment of flexure causes foundation ground, thus reduce foundation ' s bottom area; With precast beam as main bending resistance component, and surround the base center cylinder of wind power generation stepped tower cylinder by the prefabricated depth of beam of reflection shape, to reduce the engineering quantity of base concrete; Wind-driven generator and the connection on basis is changed into prestressed anchor ring assemblies by discharge ring.Ensure that tower cylinder is rigidly connected with basic, decrease steel using amount, also simplify the construction of this part simultaneously.
Accompanying drawing explanation
The plane structure schematic diagram of the precast prestressed beam and slab type generation power foundation of wind power in basis that Fig. 1 provides for the embodiment of the present invention.
The cross-sectional view of the precast prestressed beam and slab type generation power foundation of wind power in basis that Fig. 2 provides for the embodiment of the present invention.
Fig. 3 is anchor component cross-sectional view in the embodiment of the present invention.
Fig. 4 is prefabricated semi girder cross-sectional view in the embodiment of the present invention.
Fig. 5 is the node structure schematic diagram in the embodiment of the present invention.
Detailed description of the invention
To be described in further detail the embodiment of the present invention below.
The precast prestressed beam and slab type generation power foundation of wind power in basis of the present invention, its preferably detailed description of the invention be:
Comprise concrete cushion, described concrete cushion is annular, described concrete cushion is provided with concrete foundation base plate, the middle part of described concrete foundation base plate is provided with annular concrete stub, the described concrete foundation base plate place of keeping to the side is provided with edge girder, described former annular concrete stub is connected by prefabricated semi girder with between described edge girder and between two adjacent edge girders, described prefabricated semi girder and described edge girder stretch out bar connecting by end is prefabricated, and described prefabricated semi girder and concrete stub stretch out bar connecting by top is prefabricated;
Evenly bury prestressed bolt underground in described concrete stub, described prestressed bolt one end is connected with anchor slab under basis, and the other end is connected with tower cylinder;
Evenly be provided with cavity in described prefabricated semi girder, be connected with described concrete foundation base plate prestressing force by described prefabricated semi girder with described prestressed bolt in cavity, described prefabricated semi girder is connected by anchor plate, ground tackle with between cavity;
Reinforcing bar is arranged in described prefabricated semi girder inside in prefabrication process, and described concrete stub internal placement reinforcing bar, described edge trabecular interior is furnished with reinforcing bar.
Described edge girder and described prefabricated semi girder are respectively 6,8,12.
Described prefabricated semi girder is that factory adopts reinforced concrete prefabricated forming.
Described prefabricated semi girder and concrete foundation base plate adopt prestressed bolt post-tension of pre-stress to be connected, and carry out binding and concreting is connected with described edge girder and concrete stub by the prefabricated reinforcing bar that stretches out.
The precast prestressed beam and slab type generation power foundation of wind power in basis of the present invention, can strengthen the bending resistance of generation power foundation of wind power, comprise:
Concrete cushion, concrete foundation base plate, prefabricated semi girder, edge girder, concrete stub, prestressed bolt, concrete cushion is annular, bed course is provided with concrete foundation base plate, the middle part of concrete foundation base plate is provided with annular concrete stub, the concrete foundation base plate place of keeping to the side is provided with edge girder, concrete stub is connected by prefabricated semi girder with edge girder, two adjacent edge girders are connected by prefabricated semi girder, prefabricated semi girder is connected with girder and stretches out reinforcing bar by end is prefabricated, the connection of prefabricated semi girder and concrete stub stretches out reinforcing bar by top is prefabricated, evenly bury prestressed bolt underground in concrete stub, prestressed bolt one end is connected with anchor slab under basis, and the other end is connected with tower cylinder.Evenly be provided with cavity in prefabricated semi girder, be connected by prefabricated semi girder in cavity with prestressed bolt with concrete foundation base plate prestressing force, prefabricated semi girder cavity needs anchor plate ground tackle up and down and connects.Prefabricated semi girder inside needs to arrange reinforcing bar in prefabrication process, and concrete stub inside needs to arrange reinforcing bar according to topology requirement; Trabecular interior needs to be furnished with reinforcing bar;
Edge girder and prefabricated semi girder are respectively 6,8,12, and edge girder is circular arc type, form a closed circle with prefabricated semi girder.
Prefabricated semi girder of the present invention is connected with concreting is integral by reserved steel bar with stub and edge girder, forms a whole.Prefabricated semi girder adopts crab-bolt post-tension of pre-stress to connect with sole plate.
The present invention reduces with the actual bearing area of ground due to basic, and the compressive stress on basic annular compression face increases, and can be used for resisting the pull out force that superstructure moment of flexure causes foundation ground, thus reduces foundation ' s bottom area.
The present invention's precast beam as main bending resistance component, and surrounds the base center cylinder of wind power generation stepped tower cylinder, to reduce the engineering quantity of base concrete by the prefabricated depth of beam of reflection shape.
The present invention changes wind-driven generator and the connection on basis into prestressed anchor ring assemblies by discharge ring.Ensure that tower cylinder is rigidly connected with basic, decrease steel using amount, also simplify the construction of this part simultaneously.
Specific embodiment:
Shown in Fig. 1,2,3,4,5, the present invention includes: concrete cushion 1, concrete foundation base plate 2,8 hollow preform semi girders 3,8 hollow rim girders 4, concrete stub 5, prestressed bolt 6, concrete cushion 1 is in annular, after first concrete cushion 1 being completed, on it, do concrete floor 2 and concrete stub 5 overall structure, the middle part of concrete foundation base plate 2 is provided with annular concrete stub 5.Produce concrete prefabricated the prefabricated semi girder 3 doing to shape simultaneously.Concrete foundation base plate 2 place of keeping to the side is provided with a loop girder 4.Be arranged on each prefabricated semi girder 3 one end on blower foundation after prefabricated semi girder 3 is transported to scene to be connected with concrete stub 5, form M shape structure, the other end is placed between two adjacent edge girders 4, and is fixedly connected with edge girder 4; Evenly bury prestressed bolt 6 underground in concrete stub 5, crab-bolt 6 is 120-240, and also can adjust according to force request, each prestressed bolt 6 one end is connected with anchor slab under basis 7, and the other end is connected with tower cylinder 8.Be provided with 6-12 cavity 14 in the middle of prefabricated semi girder 5, with prestressed anchor 6 and anchor slab 16, ground tackle 17, prefabricated semi girder post-tension of pre-stress linked together accordingly in cavity.
During use, by the annular concrete stub 5 in the present invention, hollow rim girder 4 by concrete casting injection forming, hollow preform semi girder 3 is prefabricated units.Hollow preform semi girder 3 is being reserved with joint bar with annular concrete stub 5, hollow rim girder 4 junction, carry out colligation overlap joint to corresponding reinforcing bar in annular concrete stub 5, hollow rim girder 4 after having laid, then annular concrete stub 5, hollow rim girder 4 complete with pouring concrete.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (4)
1. the precast prestressed beam and slab type generation power foundation of wind power in basis, it is characterized in that, comprise concrete cushion (1), described concrete cushion (1) is in annular, described concrete cushion (1) is provided with concrete foundation base plate (2), the middle part of described concrete foundation base plate (2) is provided with annular concrete stub (5), described concrete foundation base plate (2) place of keeping to the side is provided with edge girder (4), described former annular concrete stub (5) is connected by prefabricated semi girder (3) with between described edge girder (4) and between two adjacent edge girders (4), described prefabricated semi girder (3) and described edge girder (4) stretch out bar connecting (12) by end is prefabricated, described prefabricated semi girder (3) is connected by the prefabricated reinforcing bar (13) that stretches out in top with concrete stub (5),
Evenly bury prestressed bolt (6) underground in described concrete stub (5), described prestressed bolt (6) one end is connected with anchor slab under basis (7), and the other end is connected with tower cylinder (8);
Cavity (14) is evenly provided with in described prefabricated semi girder (3), with described prestressed bolt (6), described prefabricated semi girder (3) is connected with described concrete foundation base plate (2) prestressing force in cavity (14), is connected by anchor plate (16), ground tackle (17) between described prefabricated semi girder (3) with cavity (14);
Reinforcing bar (15) is arranged in described prefabricated semi girder (3) inside in prefabrication process, described concrete stub (5) internal placement reinforcing bar (9), described edge girder (4) internal placement has reinforcing bar (11).
2. the precast prestressed beam and slab type generation power foundation of wind power in basis according to claim 1, is characterized in that, described edge girder (4) and described prefabricated semi girder (3) are respectively 6,8,12.
3. the precast prestressed beam and slab type generation power foundation of wind power in basis according to claim 2, is characterized in that, described prefabricated semi girder (3) forms for factory's employing is reinforced concrete prefabricated.
4. the precast prestressed beam and slab type generation power foundation of wind power in basis according to claim 3, it is characterized in that, described prefabricated semi girder (3) and concrete foundation base plate (2) adopt prestressed bolt (6) post-tension of pre-stress to be connected, and carry out binding and concreting is connected with described edge girder (4) and concrete stub (5) by the prefabricated reinforcing bar (12,13) that stretches out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065800.0A CN105544593A (en) | 2016-01-29 | 2016-01-29 | Wind power generation tower foundation with prefabricated foundation prestressed beams and slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065800.0A CN105544593A (en) | 2016-01-29 | 2016-01-29 | Wind power generation tower foundation with prefabricated foundation prestressed beams and slab |
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| CN105544593A true CN105544593A (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610065800.0A Pending CN105544593A (en) | 2016-01-29 | 2016-01-29 | Wind power generation tower foundation with prefabricated foundation prestressed beams and slab |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222050A (en) * | 2018-03-20 | 2018-06-29 | 江苏融宝达新能源科技有限公司 | Prefabricated components concrete tower fan foundation structure and preparation method thereof |
| CN108547312A (en) * | 2018-05-30 | 2018-09-18 | 江苏融宝达新能源科技有限公司 | The blower foundation of steel truss structure |
| CN109024661A (en) * | 2018-09-07 | 2018-12-18 | 中国电力工程顾问集团新能源有限公司 | Foundation of wind-driven generator unit hardened system |
| CN110158633A (en) * | 2019-05-13 | 2019-08-23 | 明阳智慧能源集团股份公司 | A kind of prefabricated pier plate girder type basis of lattice concrete air pylon |
| CN110285023A (en) * | 2019-06-11 | 2019-09-27 | 同济大学建筑设计研究院(集团)有限公司 | Assembled wind driven generator base and its manufacturing method |
| CN111197319A (en) * | 2020-02-27 | 2020-05-26 | 同济大学建筑设计研究院(集团)有限公司 | A multi-directional prestressed prefabricated beam-slab foundation for wind power towers |
| CN111456070A (en) * | 2019-01-18 | 2020-07-28 | 深圳国金电力新能设计院有限公司 | tower foundation |
| CN112878354A (en) * | 2021-02-23 | 2021-06-01 | 北京银泰建构预应力技术股份有限公司 | Beam-slab assembled prestressed concrete foundation for onshore wind turbine generator |
| CN113293795A (en) * | 2021-05-31 | 2021-08-24 | 中国电建集团青海省电力设计院有限公司 | Construction method for iron tower foundation of power transmission line in salt lake region |
| WO2022069333A1 (en) * | 2020-09-29 | 2022-04-07 | Anker Werk I Port Mukran Gmbh | Foundation for a wind turbine |
| CN114991200A (en) * | 2022-06-24 | 2022-09-02 | 中国电力工程顾问集团西北电力设计院有限公司 | A cast-in-place concrete box foundation and construction method for onshore wind turbines |
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| JPH10292392A (en) * | 1997-04-18 | 1998-11-04 | Shiyouhinka Gijutsu Kenkyusho:Kk | Foundation method for temporary tower construction |
| CN202152463U (en) * | 2011-07-03 | 2012-02-29 | 江苏金海风电科技有限公司 | Foundation pressure-bearing beam plate type wind power generation tower foundation |
| CN203096756U (en) * | 2013-02-28 | 2013-07-31 | 陕西省建筑基础工程公司 | Fan base grouting construction structure with high-strength grouting materials |
| CN205369295U (en) * | 2016-01-29 | 2016-07-06 | 惠宏工程技术（北京）有限公司 | Basis precast prestressed beam slab formula wind power generation column foot plinth |
-
2016
- 2016-01-29 CN CN201610065800.0A patent/CN105544593A/en active Pending
Patent Citations (4)
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| JPH10292392A (en) * | 1997-04-18 | 1998-11-04 | Shiyouhinka Gijutsu Kenkyusho:Kk | Foundation method for temporary tower construction |
| CN202152463U (en) * | 2011-07-03 | 2012-02-29 | 江苏金海风电科技有限公司 | Foundation pressure-bearing beam plate type wind power generation tower foundation |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222050A (en) * | 2018-03-20 | 2018-06-29 | 江苏融宝达新能源科技有限公司 | Prefabricated components concrete tower fan foundation structure and preparation method thereof |
| CN108547312A (en) * | 2018-05-30 | 2018-09-18 | 江苏融宝达新能源科技有限公司 | The blower foundation of steel truss structure |
| CN109024661A (en) * | 2018-09-07 | 2018-12-18 | 中国电力工程顾问集团新能源有限公司 | Foundation of wind-driven generator unit hardened system |
| CN109024661B (en) * | 2018-09-07 | 2023-12-19 | 中国电力工程顾问集团新能源有限公司 | Wind generating set foundation reinforcing system |
| CN111456070A (en) * | 2019-01-18 | 2020-07-28 | 深圳国金电力新能设计院有限公司 | tower foundation |
| CN110158633A (en) * | 2019-05-13 | 2019-08-23 | 明阳智慧能源集团股份公司 | A kind of prefabricated pier plate girder type basis of lattice concrete air pylon |
| CN110285023A (en) * | 2019-06-11 | 2019-09-27 | 同济大学建筑设计研究院(集团)有限公司 | Assembled wind driven generator base and its manufacturing method |
| CN111197319A (en) * | 2020-02-27 | 2020-05-26 | 同济大学建筑设计研究院(集团)有限公司 | A multi-directional prestressed prefabricated beam-slab foundation for wind power towers |
| WO2022069333A1 (en) * | 2020-09-29 | 2022-04-07 | Anker Werk I Port Mukran Gmbh | Foundation for a wind turbine |
| CN112878354A (en) * | 2021-02-23 | 2021-06-01 | 北京银泰建构预应力技术股份有限公司 | Beam-slab assembled prestressed concrete foundation for onshore wind turbine generator |
| CN113293795A (en) * | 2021-05-31 | 2021-08-24 | 中国电建集团青海省电力设计院有限公司 | Construction method for iron tower foundation of power transmission line in salt lake region |
| CN114991200A (en) * | 2022-06-24 | 2022-09-02 | 中国电力工程顾问集团西北电力设计院有限公司 | A cast-in-place concrete box foundation and construction method for onshore wind turbines |
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Application publication date: 20160504 |