CN107100192A - A kind of foundation ring of wind generating set local stiffening device and reinforcement means - Google Patents
A kind of foundation ring of wind generating set local stiffening device and reinforcement means Download PDFInfo
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- CN107100192A CN107100192A CN201710464348.XA CN201710464348A CN107100192A CN 107100192 A CN107100192 A CN 107100192A CN 201710464348 A CN201710464348 A CN 201710464348A CN 107100192 A CN107100192 A CN 107100192A
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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
- E02D27/44—Foundations for machines, engines or ordnance
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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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D37/00—Repair of damaged foundations or foundation structures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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Abstract
The invention discloses a kind of foundation ring of wind generating set local stiffening device, including former reinforced concrete foundation and local bracing means；Local stiffening device includes newly pouring reinforced concrete foundation, inner side steel clamp Slab element, outside steel clamp Slab element, multiple inner side steel clamp Slab elements are laid in the foundation ring upper inside wall of former reinforced concrete foundation in a ring, multiple outside steel clamp Slab elements are laid in foundation ring external wall of upper portion in a ring, described new to pour reinforced concrete foundation and be cast on the basis of raw steel reinforced concrete.The present invention bears the scattered transmission of load for the fan operation state generation that curved muscle is born foundation ring by interior outside steel clamp Slab element, connection reinforcing bar, inside and outside basis, significantly reduce the stress in foundation ring after reinforcing, the fatigue damage of blower foundation is slow down, the service life for reinforcing rear fan basis greatly improved.The invention also discloses a kind of foundation ring of wind generating set local stiffening method.
Description
Technical field
The present invention relates to wind-powered electricity generation field, more particularly to a kind of foundation ring of wind generating set local stiffening device and reinforcing side
Method.
Background technology
In recent years, in China's power field, wind-power electricity generation project is quickly grown, and land wind power generating set construction amount is big
Big increase, but after generating set is built up, accident resulting from poor quality of projects happens occasionally.Verify after testing, what most of engineering accidents occurred
During reason is due to work progress, nearby Surface layer's concrete quality control is unqualified for blower foundation ring, and concrete actual strength is low
In design strength, and blower fan is vibrated under wind action for a long time, and blower foundation ring is constantly contacted with neighbouring concrete, extruded,
Easily there is drawing crack or localized crush in concrete near particularly main wind direction foundation ring, forms crack, causes blower fan to shake
Put phenomenon.If the phenomenon of waving of blower fan is not handled in time, over time, Surface layer's concrete is constantly by basis
Extruding, the impact of ring, produce fatigue effect, sleet corrodes in addition, and foundation ring prevailing wind direction periphery concrete crack will be constantly outside
Portion and bottom extension, the phenomenon of waving of blower fan will more and more substantially, when the damage of Surface layer's concrete to bottom extends to a depthkeeping
When spending, blower foundation ring will be changed into 2 lever stress forms above and below part by former overall lateral stress form, and concrete exists
Circulate under load-bearing, conquassation phenomenon is likely to occur as the foundation ring lower flange top concrete at balance pivot position, so as to cause
Wind-driven generator collapses.
Traditional wind driven generator base hardened system, for the local drawing crack and conquassation of blower foundation Surface layer's concrete,
The phenomenon for causing crack between foundation ring and concrete to increase, only with injecting high-strength grout or epoxide-resin glue into gap
Method, although high-strength grout or epoxide-resin glue after solidification can fill the crack of generation, but this method is not considered
Crack is due to that basic ring vibration produced by wind load is born on wind-driven generator top for a long time causes between foundation ring and concrete
, do not take constructively rational measure effectively to disperse upper load and be delivered to the stress of foundation ring, so as to slow down coagulation
The generation and extension of soil cracking gap, therefore using traditional hardened system, the phenomenon that concrete produces crack remains unchanged and can existed, after reinforcing
The time for maintaining wind-driven generator normally to run will not be very long.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides that a kind of simple in construction, Path of Force Transfer is good, service life length wind
Power generator group foundation ring local stiffening device, and a kind of foundation ring of wind generating set local stiffening method is provided.
Technical proposal that the invention solves the above-mentioned problems is：A kind of foundation ring of wind generating set local stiffening device, bag
Include former reinforced concrete foundation and local bracing means；Former reinforced concrete foundation includes sole plate, stub and foundation ring, base
In plinth bottom plate embedment ground, it is provided with the middle part of sole plate in stub, foundation ring embedment stub, foundation ring top is connected with tower,
The local stiffening device includes newly pouring reinforced concrete foundation, inner side steel clamp Slab element, outside steel clamp Slab element, the basis
Multiple bolts hole are distributed in ring upper portion side wall in a ring, the inner side and outer side of each bolt hole is respectively provided with an inner side steel clamp
Slab element and an outside steel clamp Slab element, multiple inner side steel clamp Slab elements are laid in foundation ring upper inside wall in a ring, many
Individual outside steel clamp Slab element is laid in foundation ring external wall of upper portion in a ring, and inner side steel clamp Slab element, outside steel clamp Slab element are used
Bolt is fastened on foundation ring, it is described it is new pour reinforced concrete foundation and be cast on the basis of raw steel reinforced concrete, to cover raw steel
Reinforced concrete basis and local bracing means.
Above-mentioned foundation ring of wind generating set local stiffening device, the inner side steel clamp Slab element and outside steel clamp Slab element
On be respectively provided with upper ring plate and lower ring plate, and along inner side steel clamp Slab element is vertical, outside steel clamp Slab element vertically sets some respectively
Ribbed stiffener, ribbed stiffener bottom is welded on ribbed stiffener provided with connection reinforcing bar, connection reinforcing bar upper end, and connection reinforcing bar lower end is welded on base
On the original basis reinforcing bar of plinth ring.
Above-mentioned foundation ring of wind generating set local stiffening device, new pour in reinforced concrete foundation is provided with positioned at base
Curved muscle is born on interior basis on the inside of plinth ring and curved muscle is born on the outer basis on the outside of foundation ring, and interior basis is born curved muscle one end and is anchored in newly
Reinforced concrete foundation center is poured, the upper ring plate of the other end and inner side steel clamp Slab element is welded, the outer negative curved muscle one end anchoring in basis
Poured in new on the outside of reinforced concrete foundation, the upper ring plate of the other end and outside steel clamp Slab element is welded.
On above-mentioned foundation ring of wind generating set local stiffening device, the sole plate be located at stub on the outside of part with
The new interface for pouring reinforced concrete foundation is vertically provided with many joint bars.
Above-mentioned foundation ring of wind generating set local stiffening device, the foundation ring inner side and outer side is equipped with radial distribution
Radial distribution reinforcing bar outboard end on the outside of reinforcing bar, foundation ring is fixed in sole plate by bar planting mode, on the outside of foundation ring
Radial distribution reinforcing bar medial end welded with outside steel clamp Slab element, the radial distribution reinforcing bar outboard end on the inside of foundation ring with
Inner side steel clamp Slab element welding.
Above-mentioned foundation ring of wind generating set local stiffening device, the spiro keyhole position is in wearing a reinforcing bar hole on foundation ring
Near, and diameter of bolt hole be less than wear a reinforcing bar hole diameter.
Above-mentioned foundation ring of wind generating set local stiffening device, the inner side steel clamp Slab element is contacted with foundation ring inwall
The radian and outside steel clamp Slab element in face are consistent with the radian in foundation ring wall contacts face.
A kind of foundation ring of wind generating set local stiffening method, comprises the following steps：
1）According to the running situation of each wind-driven generator, the design data and blower fan raw steel of the former reinforced concrete foundation of blower fan
The existing degree of impairment on reinforced concrete basis, is designed to newly pouring reinforced concrete foundation, it is determined that newly pouring reinforced concrete
The diameter and quantity of arrangement of reinforcement in plinth；
2）Section top concrete certain depth at raw steel reinforced concrete Foundation pier is cut, until original basis reinforcing bar is exposed,
Drilled in the new reinforced concrete foundation that pours with former reinforced concrete foundation interface, be implanted into joint bar, a reinforced hole is worn in foundation ring
Hole nearby sets bolt hole by machine drilling mode；
3）Be prefabricated in the factory inner side steel clamp Slab element and outside steel clamp Slab element, is transported to scene, by inner side steel clamp Slab element and outside
Side steel clamp Slab element is connected by bolt with foundation ring；
4）Curved muscle is born on basic negative curved muscle and outer basis in setting, and the negative curved muscle one end in interior basis is arranged at and newly pours reinforced concrete
Plinth center, the upper ring plate of the other end and inner side steel clamp Slab element is by being welded to connect, and outer basis, which is born curved muscle one end and is arranged at, newly pours
On the outside of reinforced concrete foundation, the upper ring plate of the other end and outside steel clamp Slab element is by being welded to connect；
5）Connection reinforcing bar is set, the ribbed stiffener, outer of original basis reinforcing bar and inner side steel clamp Slab element is connected respectively by connecting reinforcing bar
The ribbed stiffener of side steel clamp Slab element；Radial distribution reinforcing bar outboard end on the outside of colligation radial distribution reinforcing bar, foundation ring is by planting
Muscle mode is fixed in former reinforced concrete foundation, the radial distribution reinforcing bar medial end on the outside of foundation ring and outside steel clamp plate list
Member by being welded to connect, the radial distribution reinforcing bar outboard end on the inside of foundation ring with inner side steel clamp Slab element by being welded to connect,
Then the circumferentially distributed reinforcing bar of colligation；
6）The formwork outside former reinforced concrete foundation, casting concrete, formation newly pours reinforced concrete foundation, treats cast-in-place concrete
Maintenance is finished, and forms foundation ring of wind generating set local stiffening device.
Above-mentioned foundation ring of wind generating set local stiffening method, the step 2）In, bolt hole hole diameter, which is less than, wears
Cylinder reinforcing bar hole diameter, ensures that weakening of the bolt hole hole to foundation ring section is not more than with this and wears a reinforcing bar hole.
The beneficial effects of the present invention are：
1st, bracing means of the invention bears curved muscle by foundation ring institute by interior outside steel clamp Slab element, connection reinforcing bar, inside and outside basis
The scattered transmission of load that the fan operation state born is produced, significantly reduces the stress in foundation ring after reinforcing, slow down
The fatigue damage of blower foundation, sets about processing blower foundation from root and reinforces problem, can greatly improve reinforcing rear fan basis
Service life.
2nd, in bracing means of the invention, diameter of bolt hole, which is less than, wears a reinforcing bar hole diameter, ensure that bolt hole pair
The weakening in foundation ring section, which is not more than, wears a reinforcing bar hole.
3rd, cold working drilling technique is used to foundation ring in reinforcement means of the invention, it is to avoid foundation ring produces welding should
Power and deformation, it also avoid the weakening to foundation ring anti-fatigue performance, and the reinforcement of steel clamp plate is conducive to foundation ring antifatigue
The raising of performance.
Brief description of the drawings
Fig. 1 is the basic structural representation of reinforced concrete before reinforcing.
Fig. 2 is the basic structural representation of reinforced concrete after reinforcing.
Fig. 3 is interior outside steel clamp Slab element and the partial structural diagram of foundation ring contact position.
Fig. 4 is the structural representation of inner side steel clamp Slab element in Fig. 2.
Fig. 5 is Fig. 4 diagrammatic cross-section.
Fig. 6 is the structural representation of outside steel clamp Slab element in Fig. 2.
Fig. 7 is Fig. 6 diagrammatic cross-section.
Fig. 8 is the reinforcing position view of bracing means of the present invention.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in Fig. 2 a kind of foundation ring of wind generating set local stiffening device, including the He of former reinforced concrete foundation 1
Local stiffening device；Former reinforced concrete foundation 1 includes sole plate 12, stub 13 and foundation ring 14, and sole plate 12 is embedded to
In ground, the middle part of sole plate 12 is provided with stub 13, the embedment stub 13 of foundation ring 14, and the top of foundation ring 14 connects with tower 15
Connect, the part in the outside of stub 13 is located on sole plate 12 vertically provided with many joint bars 2, the local stiffening device includes newly pouring
In reinforced concrete foundation 6, inner side steel clamp Slab element 5, outside steel clamp Slab element 4, the upper portion side wall of foundation ring 14 in a ring
It is distributed multiple bolts hole 20, bolt hole 20, which is located on foundation ring 14, to be worn near a reinforcing bar hole 8, and the diameter of bolt hole 20 is less than and worn
The diameter of cylinder reinforcing bar hole 8, the inner side and outer side of each bolt hole 20 is respectively outer provided with an inner side steel clamp Slab element 5 and one
Side steel clamp Slab element 4, multiple inner side steel clamp Slab elements 5 are laid in the upper inside wall of foundation ring 14 in a ring, multiple outside steel clamps
Slab element 4 is laid in the external wall of upper portion of foundation ring 14 in a ring, and inner side steel clamp Slab element 5, outside steel clamp Slab element 4 are tight with bolt
Gu on foundation ring 14, it is described it is new pour reinforced concrete foundation 6 and be cast on former reinforced concrete foundation 1, to cover raw steel muscle
Concrete foundation 1 and local bracing means.
It is respectively provided with upper ring plate 17 and lower ring plate 18 on the inner side steel clamp Slab element 5 and outside steel clamp Slab element 4, and along interior
Side steel clamp Slab element 5 is vertical, outside steel clamp Slab element 4 is vertical sets some ribbed stiffeners 19 respectively, and the bottom of ribbed stiffener 19 is provided with company
Reinforcing bar 21 is connect, connection reinforcing bar 21 upper end is welded on ribbed stiffener 19, and connection reinforcing bar 21 lower end is welded on the original basis of foundation ring 14
On reinforcing bar 3, the stress in inner side steel clamp Slab element 5 and outside steel clamp Slab element 4 is dispersed to former reinforced concrete foundation 1.
Bear curved muscle 9 and positioned at base in the new interior basis being provided with reinforced concrete foundation 6 on the inside of foundation ring 14 of pouring
Curved muscle 7 is born on the outer basis in the outside of plinth ring 14, and interior negative curved one end of muscle 9 in basis, which is anchored in, newly pours the center of reinforced concrete foundation 6, another
The upper ring plate 17 with inner side steel clamp Slab element 5 is held to weld, outer negative curved one end of muscle 7 in basis, which is anchored in, newly pours reinforced concrete foundation 6
Outside, the upper ring plate 17 of the other end and outside steel clamp Slab element 4 is welded.Bear curved muscle 9, the negative curved muscle 7 in outer basis and replace former in interior basis
Wear a reinforcing bar in basis.
The inner side and outer side of foundation ring 14 is equipped with radial distribution reinforcing bar 10, the radial distribution reinforcing bar in the outside of foundation ring 14
10 outboard ends are fixed in sole plate 12 by bar planting mode, the medial end of radial distribution reinforcing bar 10 in the outside of foundation ring 14
Welded with outside steel clamp Slab element 4, the outboard end of radial distribution reinforcing bar 10 of the inner side of foundation ring 14 is welded with inner side steel clamp Slab element 5
Connect.
Radian and outside steel clamp Slab element 4 and basis of the inner side steel clamp Slab element 5 with the inwall contact surface of foundation ring 14
The radian in the wall contacts face of ring 14 is consistent, and inner side steel clamp Slab element 5, outside steel clamp Slab element 4 and foundation ring 14 pass through high-strength spiral shell
Tether and connect, foundation ring 14 is by after upper load, and inner side steel clamp Slab element 5 and outside steel clamp Slab element 4 are due to newly pouring reinforced concrete
Concrete effect of contraction in earth foundation 6, by the frictional force of mutual contact surface, shares the top lotus that foundation ring 14 is born
Carry, the internal stress of dispersion base ring 14.
A kind of foundation ring of wind generating set local stiffening method, comprises the following steps：
1）According to the running situation of each wind-driven generator, the design data and blower fan raw steel of the former reinforced concrete foundation of blower fan
The existing degree of impairment on reinforced concrete basis, is designed to newly pouring reinforced concrete foundation, it is determined that newly pouring reinforced concrete
The diameter and quantity of arrangement of reinforcement in plinth 6；
2）Cut section top concrete 16 at the former stub 13 of reinforced concrete foundation 1 and, to certain depth, expose original basis steel
Muscle 3, drills with the former interface of reinforced concrete foundation 1 newly pouring reinforced concrete foundation 6, is implanted into joint bar 2, is implanted into length and pre-
Length is stayed by Specification Design, is worn in foundation ring 14 near a reinforcing bar hole 8 and bolt hole 20 is set by machine drilling mode；Bolt
The hole diameter of hole 20, which is less than, wears a diameter of reinforcing bar hole 8, ensures the hole of bolt hole 20 to the weakening in the section of foundation ring 14 not with this
More than wearing a reinforcing bar hole 8；
3）Be prefabricated in the factory inner side steel clamp Slab element 5 and outside steel clamp Slab element 4, scene is transported to, by the He of inner side steel clamp Slab element 5
Outside steel clamp Slab element 4 is connected by bolt with foundation ring 14；
4）Curved muscle 7 is born on basic negative curved muscle 9 and outer basis in setting, and the negative curved one end of muscle 9 in interior basis is arranged at and newly pours reinforced concrete
The center of earth foundation 6, the upper ring plate 17 of the other end and inner side steel clamp Slab element 5 is by being welded to connect, and outer basis is born curved one end of muscle 7 and set
Be placed in it is new pour the outside of reinforced concrete foundation 6, the upper ring plate 17 of the other end and outside steel clamp Slab element 4 is by being welded to connect；
5）Connection reinforcing bar 21 is set, putting more energy into for original basis reinforcing bar 3 and inner side steel clamp Slab element 5 is connected respectively by connecting reinforcing bar 21
The ribbed stiffener 19 of rib 19, outside steel clamp Slab element 4；Colligation radial distribution reinforcing bar 10, the radial distribution reinforcing bar in the outside of foundation ring 14
10 outboard ends are fixed in former reinforced concrete foundation 1 by bar planting mode, the radial distribution reinforcing bar 10 in the outside of foundation ring 14
Medial end with outside steel clamp Slab element 4 by being welded to connect, the outboard end of radial distribution reinforcing bar 10 of the inner side of foundation ring 14 with
Inner side steel clamp Slab element 5 is by being welded to connect, the then circumferentially distributed reinforcing bar 11 of colligation；
6）In the outer formwork of former reinforced concrete foundation 1, casting concrete, formation newly pours reinforced concrete foundation 6, treats cast-in-place coagulation
Soil maintenance is finished, and forms foundation ring of wind generating set local stiffening device.
Claims (9)
1. a kind of foundation ring of wind generating set local stiffening device, it is characterised in that：Including former reinforced concrete foundation drawn game
Portion's bracing means；Former reinforced concrete foundation is included in sole plate, stub and foundation ring, sole plate embedment ground, basis
It is provided with the middle part of bottom plate in stub, foundation ring embedment stub, foundation ring top is connected with tower, and the local stiffening device includes new
Pour and be distributed in a ring in reinforced concrete foundation, inner side steel clamp Slab element, outside steel clamp Slab element, the foundation ring upper portion side wall
Multiple bolts hole, the inner side and outer side of each bolt hole is respectively provided with an inner side steel clamp Slab element and an outside steel clamp plate
Unit, multiple inner side steel clamp Slab elements are laid in foundation ring upper inside wall in a ring, and multiple outside steel clamp Slab elements are in a ring
It is laid in foundation ring external wall of upper portion, inner side steel clamp Slab element, outside steel clamp Slab element are fastened on foundation ring with bolt, described
Newly pour reinforced concrete foundation to be cast on the basis of raw steel reinforced concrete, filled with covering former reinforced concrete foundation and local stiffening
Put.
2. foundation ring of wind generating set local stiffening device according to claim 1, it is characterised in that：The inner side steel
It is respectively provided with upper ring plate and lower ring plate on cleating unit and outside steel clamp Slab element, and along inner side steel clamp Slab element is vertical, outside steel
Cleating unit vertically sets some ribbed stiffeners respectively, and ribbed stiffener bottom is provided with connection reinforcing bar, and connection reinforcing bar upper end, which is welded on, puts more energy into
On rib, connection reinforcing bar lower end is welded on the original basis reinforcing bar of foundation ring.
3. foundation ring of wind generating set local stiffening device according to claim 2, it is characterised in that：It is described newly to pour steel
Curved muscle and the negative curved muscle in outer basis on the outside of foundation ring are born provided with the interior basis being located on the inside of foundation ring in reinforced concrete basis,
Interior negative curved muscle one end in basis, which is anchored in, newly pours reinforced concrete foundation center, and the upper ring plate of the other end and inner side steel clamp Slab element is welded
Connect, outer basis bears curved muscle one end and is anchored in the new upper ring for pouring reinforced concrete foundation outside, the other end and outside steel clamp Slab element
Plate weld.
4. foundation ring of wind generating set local stiffening device according to claim 1, it is characterised in that：The basic bottom
It is located at the part on the outside of stub on plate with newly pouring the interface of reinforced concrete foundation vertically provided with many joint bars.
5. foundation ring of wind generating set local stiffening device according to claim 1, it is characterised in that：The foundation ring
The radial distribution reinforcing bar outboard end that inner side and outer side is equipped with the outside of radial distribution reinforcing bar, foundation ring is fixed by bar planting mode
In in sole plate, the radial distribution reinforcing bar medial end on the outside of foundation ring is welded with outside steel clamp Slab element, on the inside of foundation ring
Radial distribution reinforcing bar outboard end welded with inner side steel clamp Slab element.
6. foundation ring of wind generating set local stiffening device according to claim 1, it is characterised in that：The bolt hole
Worn on foundation ring near a reinforcing bar hole, and diameter of bolt hole be less than wear a reinforcing bar hole diameter.
7. foundation ring of wind generating set local stiffening device according to claim 1, it is characterised in that：The inner side steel
Cleating unit is consistent with the radian in foundation ring wall contacts face with the radian and outside steel clamp Slab element of foundation ring inwall contact surface.
8. a kind of foundation ring of wind generating set local stiffening device according to any one of claim 1-7 is reinforced
Method, comprise the following steps：
1）According to the running situation of each wind-driven generator, the design data and blower fan raw steel of the former reinforced concrete foundation of blower fan
The existing degree of impairment on reinforced concrete basis, is designed to newly pouring reinforced concrete foundation, it is determined that newly pouring reinforced concrete
The diameter and quantity of arrangement of reinforcement in plinth；
2）Section top concrete certain depth at raw steel reinforced concrete Foundation pier is cut, until original basis reinforcing bar is exposed,
Drilled in the new reinforced concrete foundation that pours with former reinforced concrete foundation interface, be implanted into joint bar, a reinforced hole is worn in foundation ring
Hole nearby sets bolt hole by machine drilling mode；
3）Be prefabricated in the factory inner side steel clamp Slab element and outside steel clamp Slab element, is transported to scene, by inner side steel clamp Slab element and outside
Side steel clamp Slab element is connected by bolt with foundation ring；
4）Curved muscle is born on basic negative curved muscle and outer basis in setting, and the negative curved muscle one end in interior basis is arranged at and newly pours reinforced concrete
Plinth center, the upper ring plate of the other end and inner side steel clamp Slab element is by being welded to connect, and outer basis, which is born curved muscle one end and is arranged at, newly pours
On the outside of reinforced concrete foundation, the upper ring plate of the other end and outside steel clamp Slab element is by being welded to connect；
5）Connection reinforcing bar is set, the ribbed stiffener, outer of original basis reinforcing bar and inner side steel clamp Slab element is connected respectively by connecting reinforcing bar
The ribbed stiffener of side steel clamp Slab element；Radial distribution reinforcing bar outboard end on the outside of colligation radial distribution reinforcing bar, foundation ring is by planting
Muscle mode is fixed in former reinforced concrete foundation, the radial distribution reinforcing bar medial end on the outside of foundation ring and outside steel clamp plate list
Member by being welded to connect, the radial distribution reinforcing bar outboard end on the inside of foundation ring with inner side steel clamp Slab element by being welded to connect,
Then the circumferentially distributed reinforcing bar of colligation；
6）The formwork outside former reinforced concrete foundation, casting concrete, formation newly pours reinforced concrete foundation, treats cast-in-place concrete
Maintenance is finished, and forms foundation ring of wind generating set local stiffening device.
9. foundation ring of wind generating set local stiffening method according to claim 8, it is characterised in that：The step 2）
In, bolt hole hole diameter, which is less than, wears a reinforcing bar hole diameter, ensures bolt hole hole to the weakening in foundation ring section not with this
More than wearing a reinforcing bar hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464348.XA CN107100192B (en) | 2017-06-19 | 2017-06-19 | Local reinforcing device and method for foundation ring of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464348.XA CN107100192B (en) | 2017-06-19 | 2017-06-19 | Local reinforcing device and method for foundation ring of wind generating set |
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| CN107100192A true CN107100192A (en) | 2017-08-29 |
| CN107100192B CN107100192B (en) | 2022-06-07 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411931A (en) * | 2018-04-02 | 2018-08-17 | 中国电建集团中南勘测设计研究院有限公司 | A kind of reinforcement means of blower foundation |
| CN108755740A (en) * | 2018-08-28 | 2018-11-06 | 同济大学建筑设计研究院(集团)有限公司 | A kind of seif-citing rate formula generation power foundation of wind power ring group plinth hardened system and reinforcement means |
| 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 |
| CN109826223A (en) * | 2019-02-15 | 2019-05-31 | 吉林建筑大学城建学院 | Concrete weak area stiffener at blower foundation ring lower flange |
| CN110130424A (en) * | 2019-05-06 | 2019-08-16 | 同济大学 | Prestressed bolt blower foundation reinforcement means |
| CN110644524A (en) * | 2019-10-09 | 2020-01-03 | 兰州理工大学 | PBL shear key type wind power generation tower foundation ring facility and construction method |
| KR20200057954A (en) * | 2018-11-19 | 2020-05-27 | 한국건설기술연구원 | Wind turbine structure for retrofitting spread footing in partial repowering , and construction method for the same |
| CN113338365A (en) * | 2021-06-25 | 2021-09-03 | 中国华能集团清洁能源技术研究院有限公司 | Reinforced structure of onshore fan expanded foundation pipe pile and construction method |
| CN109826223B (en) * | 2019-02-15 | 2024-07-05 | 吉林建筑大学城建学院 | Reinforced member for concrete weak area at lower flange of fan foundation ring |
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