CN205369295U - Basis precast prestressed beam slab formula wind power generation column foot plinth - Google Patents
Basis precast prestressed beam slab formula wind power generation column foot plinth Download PDFInfo
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- CN205369295U CN205369295U CN201620095589.2U CN201620095589U CN205369295U CN 205369295 U CN205369295 U CN 205369295U CN 201620095589 U CN201620095589 U CN 201620095589U CN 205369295 U CN205369295 U CN 205369295U
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Abstract
The utility model discloses a basis precast prestressed beam slab formula wind power generation column foot plinth, including the concrete cushion, be equipped with the concrete foundation bottom plate on the concrete cushion, the middle part of concrete foundation bottom plate is equipped with ring shape concrete pier, and the concrete foundation bottom plate is close to the edge and is equipped with marginal trabecula, between former annular concrete pier and the marginal trabecula and be connected through the prefabrication cantilever beam between two marginal trabeculas that face mutually, evenly burying prestressed anchorage among the concrete pier underground and tieing, prestressed anchorage ties one end and is connected with basic anchor slab down, and the other end is connected with a tower section of thick bamboo, evenly be provided with the cavity in the prefabricated cantilever beam, the of use prestressed anchorage in cavity tie will prefabricate the cantilever beam with concrete foundation bottom plate prestressing force is connected. Guarantee the rigid connection of a tower section of thick bamboo with the basis, reduced the volume of using the steel, also simplified the construction of this part simultaneously.
Description
Technical field
This utility model relates to a kind of wind power generation stepped base structure, particularly relates 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 foundation, this independent spread foundation by basis encorbelment base plate, stub and foundation ring form, strut beam mat foundation.Independent spread foundation matches with suitable foundation condition can reach good Compressive Bearing Capacity, so having employing in housing construction base for post more.But for wind power generation stepped, the active force on basis is primarily not pressure but moment of flexure by superstructure, so the anti-pressure ability of traditional independent spread foundation is had a surplus, bending resistance is not enough, has thus resulted in the bigger waste of basic engineering.
Base plate based on existing wind power generation stepped independent spread foundation many employings Varying-thickness cantilevered plate, owing to foundation plan size is big, the cantilever span of plate is big, and after cantilever slab stress, structure effect is very big, therefore basis is uneconomical, invests bigger.
In existing strut beam mat foundation work progress between beam and plate, reinforcing bar binding, shuttering supporting bother very much, cause construction period very long, and corresponding cost increases.
Utility model content
The purpose of this utility model is to provide a kind of good rigidly, steel using amount is little, simple basic precast prestressed beam and slab type generation power foundation of wind power of constructing.
The purpose of this utility model is achieved through the following technical solutions:
The precast prestressed beam and slab type generation power foundation of wind power in basis of the present utility model, including 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, it is connected by prefabricated cantilever beam between described former annular concrete stub and described edge girder and between two adjacent edge girders, described prefabricated cantilever beam and described edge girder are stretched out bar connecting by end is prefabricated, described prefabricated cantilever beam and concrete stub are stretched out bar connecting by top is prefabricated；
Uniformly burying prestressed bolt in described concrete stub underground, described prestressed bolt one end is connected with anchor slab under basis, and the other end is connected with tower；
Described prefabricated cantilever beam is evenly arranged with cavity, with described prestressed bolt, described prefabricated cantilever beam is connected with described concrete foundation base plate prestressing force in cavity, is attached by anchor plate, ground tackle between described prefabricated cantilever beam and cavity；
Arranging reinforcing bar inside described prefabricated cantilever beam in prefabrication process, described concrete stub is internal arranges reinforcing bar, and described edge trabecular interior is provided with reinforcing bar.
The technical scheme provided by above-mentioned this utility model can be seen that, the precast prestressed beam and slab type generation power foundation of wind power in basis that this utility model embodiment provides, owing to the actual bearing area of basis and ground reduces, compressive stress on the annular compression face of basis increases, can be used for resisting superstructure moment of flexure and cause the pull out force of foundation ground, thus reducing foundation ' s bottom area；With precast beam as main bending resistance component, and surround the base center cylinder of wind power generation stepped tower by the prefabricated depth of beam of reflection shape, to reduce the quantities of base concrete；The connection of wind-driven generator with basis is changed into prestressed anchor ring assemblies by foundation ring.Ensure that tower is rigidly connected with basic, decrease steel using amount, also simplify the construction of this part simultaneously.
Accompanying drawing explanation
The planar structure schematic diagram of the precast prestressed beam and slab type generation power foundation of wind power in basis that Fig. 1 provides for this utility model embodiment.
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 this utility model embodiment.
Fig. 3 is anchor component cross-sectional view in this utility model embodiment.
Fig. 4 is prefabricated cantilever beam cross-sectional view in this utility model embodiment.
Fig. 5 is the node structure schematic diagram in this utility model embodiment.
Detailed description of the invention
This utility model embodiment will be described in further detail below.
The precast prestressed beam and slab type generation power foundation of wind power in basis of the present utility model, its preferably detailed description of the invention be:
Including 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, it is connected by prefabricated cantilever beam between described former annular concrete stub and described edge girder and between two adjacent edge girders, described prefabricated cantilever beam and described edge girder are by the prefabricated bar connecting that stretches out of end, and described prefabricated cantilever beam and concrete stub are stretched out bar connecting by top is prefabricated；
Uniformly burying prestressed bolt in described concrete stub underground, described prestressed bolt one end is connected with anchor slab under basis, and the other end is connected with tower；
Described prefabricated cantilever beam is evenly arranged with cavity, with described prestressed bolt, described prefabricated cantilever beam is connected with described concrete foundation base plate prestressing force in cavity, is attached by anchor plate, ground tackle between described prefabricated cantilever beam and cavity；
Arranging reinforcing bar inside described prefabricated cantilever beam in prefabrication process, described concrete stub is internal arranges reinforcing bar, and described edge trabecular interior is provided with reinforcing bar.
Described edge girder and described prefabricated cantilever beam respectively 6,8,12.
Described prefabricated cantilever beam is that factory adopts that armored concrete is prefabricated forms.
Described prefabricated cantilever beam and concrete foundation base plate adopt prestressed bolt post-tension of pre-stress to be connected, and are undertaken bundling and casting concrete is connected by the prefabricated reinforcing bar that stretches out with described edge girder and concrete stub.
The precast prestressed beam and slab type generation power foundation of wind power in basis of the present utility model, can strengthen the bending resistance of generation power foundation of wind power, including:
Concrete cushion, concrete foundation base plate, prefabricated cantilever beam, 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 cantilever beam with edge girder, two adjacent edge girders are connected by prefabricated cantilever beam, prefabricated cantilever beam and girder connection are stretched out reinforcing bar by end is prefabricated, the connection of prefabricated cantilever beam and concrete stub is stretched out reinforcing bar by top is prefabricated；Uniformly burying prestressed bolt in concrete stub underground, prestressed bolt one end is connected with anchor slab under basis, and the other end is connected with tower.Being evenly arranged with cavity in prefabricated cantilever beam, be connected with concrete foundation base plate prestressing force by prefabricated cantilever beam with prestressed bolt in cavity, prefabricated cantilever beam cavity needs anchor plate ground tackle up and down and is attached.Need inside prefabricated cantilever beam to arrange reinforcing bar in prefabrication process, need inside concrete stub to arrange reinforcing bar according to topology requirement；Trabecular interior needs to be provided with reinforcing bar；
Edge girder and prefabricated cantilever beam respectively 6,8,12, edge girder is circular arc type, forms a closed circle with prefabricated cantilever beam.
Prefabricated cantilever beam of the present utility model is attached by reserved steel bar concreting is integral with stub and edge girder, forms a whole.Prefabricated cantilever beam adopts crab-bolt post-tension of pre-stress to connect with sole plate.
This utility model reduces due to the actual bearing area of basis and ground, and the compressive stress on the annular compression face of basis increases, and can be used for resisting superstructure moment of flexure and causes the pull out force of foundation ground, thus reducing foundation ' s bottom area.
This utility model precast beam is as main bending resistance component, and surrounds the base center cylinder of wind power generation stepped tower by the prefabricated depth of beam of reflection shape, to reduce the quantities of base concrete.
This utility model is changed the connection of wind-driven generator with basis into prestressed anchor ring assemblies by foundation ring.Ensure that tower 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, this utility model includes: concrete cushion 1, concrete foundation base plate 2,8 hollow preform cantilever beams 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, doing concrete floor 2 and concrete stub 5 overall structure above, the middle part of concrete foundation base plate 2 is provided with annular concrete stub 5.Simultaneously at the concrete prefabricated prefabricated cantilever beam 3 producing and making sizing.Concrete foundation base plate 2 place of keeping to the side is provided with a loop girder 4.Being transported to scene by prefabricated cantilever beam 3 and be arranged on blower foundation each prefabricated cantilever beam 3 one end and be connected with concrete stub 5, form M shape structure, the other end is placed between two adjacent edge girders 4, and fixing with edge girder 4 is connected；Uniformly burying prestressed bolt 6 in concrete stub 5 underground, crab-bolt 6 is 120-240, it is possible to according to force request adjustment, each prestressed bolt 6 one end is connected with anchor slab under basis 7, and the other end is connected with tower 8.It is provided with 6-12 cavity 14 in the middle of prefabricated cantilever beam 5, with prestressed anchor 6 and anchor slab 16, ground tackle 17, prefabricated cantilever beam post-tension of pre-stress is linked together accordingly in cavity.
During use, by the annular concrete stub 5 in this utility model, hollow rim girder 4 by concrete casting injection forming, hollow preform cantilever beam 3 is prefabricated components.Hollow preform cantilever beam 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 concrete casting complete.
The above; it is only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; the change that can readily occur in or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (4)
- null1. the precast prestressed beam and slab type generation power foundation of wind power in basis，It is characterized in that，Including 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)，It is connected by prefabricated cantilever beam (3) between described former annular concrete stub (5) and described edge girder (4) and between two adjacent edge girders (4)，Described prefabricated cantilever beam (3) and described edge girder (4) are stretched out bar connecting (12) by end is prefabricated，Described prefabricated cantilever beam (3) is connected by the prefabricated reinforcing bar (13) that stretches out in top with concrete stub (5)；Uniformly burying prestressed bolt (6) in described concrete stub (5) underground, described prestressed bolt (6) one end is connected with anchor slab under basis (7), and the other end is connected with tower (8)；Described prefabricated cantilever beam (3) is evenly arranged with cavity (14), described prefabricated cantilever beam (3) is connected with described concrete foundation base plate (2) prestressing force with described prestressed bolt (6) by cavity (14), is attached by anchor plate (16), ground tackle (17) between described prefabricated cantilever beam (3) and cavity (14)；Described prefabricated cantilever beam (3) is internal arranges reinforcing bar (15) in prefabrication process, described concrete stub (5) is internal arranges reinforcing bar (9), and described edge girder (4) is internal is provided with reinforcing bar (11).
- 2. the precast prestressed beam and slab type generation power foundation of wind power in basis according to claim 1, it is characterised in that described edge girder (4) and described prefabricated cantilever beam (3) respectively 6,8,12.
- 3. the precast prestressed beam and slab type generation power foundation of wind power in basis according to claim 2, it is characterised in that described prefabricated cantilever beam (3) adopts for factory that armored concrete is prefabricated forms.
- 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 cantilever beam (3) and concrete foundation base plate (2) adopt prestressed bolt (6) post-tension of pre-stress to be connected, and are undertaken bundling and casting concrete is connected by the prefabricated reinforcing bar (12,13) that stretches out with described edge girder (4) and concrete stub (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095589.2U CN205369295U (en) | 2016-01-29 | 2016-01-29 | Basis precast prestressed beam slab formula wind power generation column foot plinth |
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| CN201620095589.2U CN205369295U (en) | 2016-01-29 | 2016-01-29 | Basis precast prestressed beam slab formula wind power generation column foot plinth |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544593A (en) * | 2016-01-29 | 2016-05-04 | 惠宏工程技术（北京）有限公司 | Wind power generation tower foundation with prefabricated foundation prestressed beams and slab |
| CN107829444A (en) * | 2017-11-07 | 2018-03-23 | 中国电建集团成都勘测设计研究院有限公司 | Wind turbines prestressing force foundation structure |
| CN111456069A (en) * | 2019-01-18 | 2020-07-28 | 深圳国金电力新能设计院有限公司 | Bracing piece and have its a tower section of thick bamboo basis |
| WO2020174334A1 (en) * | 2019-02-28 | 2020-09-03 | Holcim Technology Ltd | Foundation for a wind turbine |
-
2016
- 2016-01-29 CN CN201620095589.2U patent/CN205369295U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544593A (en) * | 2016-01-29 | 2016-05-04 | 惠宏工程技术（北京）有限公司 | Wind power generation tower foundation with prefabricated foundation prestressed beams and slab |
| CN107829444A (en) * | 2017-11-07 | 2018-03-23 | 中国电建集团成都勘测设计研究院有限公司 | Wind turbines prestressing force foundation structure |
| CN111456069A (en) * | 2019-01-18 | 2020-07-28 | 深圳国金电力新能设计院有限公司 | Bracing piece and have its a tower section of thick bamboo basis |
| WO2020174334A1 (en) * | 2019-02-28 | 2020-09-03 | Holcim Technology Ltd | Foundation for a wind turbine |
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