CN112900513A - High-performance wind power tower cylinder foundation reinforcing device - Google Patents
High-performance wind power tower cylinder foundation reinforcing device Download PDFInfo
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- CN112900513A CN112900513A CN202110187826.3A CN202110187826A CN112900513A CN 112900513 A CN112900513 A CN 112900513A CN 202110187826 A CN202110187826 A CN 202110187826A CN 112900513 A CN112900513 A CN 112900513A
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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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- 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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Abstract
The invention discloses a high-performance wind power tower cylinder foundation reinforcing device, and relates to the technical field of wind power generation. The high-performance wind power tower cylinder foundation reinforcing device comprises an existing foundation, an existing foundation ring, a wind power tower cylinder, a newly-added table column, a newly-added bottom plate, an inclined strut and the like. The newly added platform column is cast on the top surface of the existing foundation in situ. The newly-added bottom plate is a prefabricated part and is connected with the existing foundation through secondary grouting. The inclined strut is made of round or square steel pipes, one end of the inclined strut is connected with the wind power tower cylinder, the other end of the inclined strut is connected with the newly added base plate, and the connecting mode is welding or bolt connection. The device has effectively consolidated existing foundation, has increased the area of contact of basis and ground, has transformed the great moment of flexure load in tower section of thick bamboo bottom, has optimized the connection form of basis and wind power tower section of thick bamboo, when not destroying original structure, makes it be applicable to the bigger wind-powered electricity generation unit of power, is favorable to the dilatation of wind-powered electricity generation field to increase effects, reduces the reconstruction cost, promotes existing basic performance and utilization ratio, has wide engineering application prospect.
Description
Technical Field
The invention relates to the technical field of wind power generation.
Background
The wind power energy is a clean energy which is pollution-free and renewable. The onshore wind power plant has high power generation amount, stable fan operation and mature manufacturing technology, and is widely put into use in recent years.
The foundation is located at the bottom of the wind power tower cylinder, is used for bearing the load transmitted from the upper part, and is an important part for ensuring the safety and normal operation of the wind turbine generator. In the past, a land wind power plant usually adopts a small wind turbine generator, the diameter of a load and a tower barrel is small, so that a small-diameter foundation can meet requirements, the foundation and the tower barrel are connected through a foundation ring, and the land wind power plant is simple in structure but not strong in connection performance. With the trend development of wind turbine generators towards larger capacity, the built onshore wind power station urgently needs capacity expansion and efficiency improvement, if the existing foundation is completely dismantled and a new foundation is built, the material cost and the time cost are high, and meanwhile, resource waste is caused, and the environment protection is not facilitated. Therefore, how to recycle the existing foundation is an urgent problem to be solved. There is a need for a high-performance wind power tower cylinder foundation reinforcing device, which can ensure that the bearing capacity and the connecting interface of the device are suitable for a wind power generator set with higher power without damaging the existing foundation structure, thereby ensuring the safety and normal use of wind power engineering.
Disclosure of Invention
The invention discloses a high-performance wind power tower cylinder foundation reinforcing device, and relates to the technical field of wind power generation. The high-performance wind power tower cylinder foundation reinforcing device comprises an existing foundation, an existing foundation ring, a wind power tower cylinder, a newly-added table column, a newly-added bottom plate, an inclined strut, a prestressed anchor bolt cage, anchor reinforcing steel bars, triangular stiffening ribs, square steel pipe concrete ring beams, stud nails, secondary grouting and stiffening partition plates. The newly added platform column is cast on the top surface of the existing foundation in situ. The newly-added bottom plate is a prefabricated part and is connected with the existing foundation through secondary grouting. The inclined strut is made of round or square steel pipes, one end of the inclined strut is connected with the wind power tower cylinder, the other end of the inclined strut is connected with the newly added base plate, and the connecting mode is welding or bolt connection. The device has effectively consolidated existing foundation, has increased the area of contact of basis and ground, has transformed the great moment of flexure load in tower section of thick bamboo bottom, has optimized the connection form of basis and wind power tower section of thick bamboo, when not destroying original structure, makes it be applicable to the bigger wind-powered electricity generation unit of power, is favorable to the dilatation of wind-powered electricity generation field to increase effects, reduces the reconstruction cost, promotes existing basic performance and utilization ratio, has wide engineering application prospect.
The technical scheme of the invention is as follows:
the utility model provides a high performance wind power tower cylinder foundation reinforcing apparatus, includes existing basis, existing foundation ring, wind power tower cylinder, newly-increased pillar, newly-increased bottom plate, bracing, prestressed anchorage tie cage, anchor reinforcing bar, triangle stiffening rib, square steel pipe concrete ring beam, peg, secondary grout, the baffle of putting more energy into.
And after the concrete on the top surface of the existing foundation is chiseled, anchoring steel bars are implanted, a lower anchor ring of the prestressed anchor bolt cage is welded with the existing foundation ring, triangular stiffening ribs are uniformly arranged along the circumference, the top surface and the side surfaces of the triangular stiffening ribs are respectively welded with the lower anchor ring of the prestressed anchor bolt cage and the side wall of the existing foundation ring, the steel bars are configured according to the calculation and construction requirements, a formwork is erected, and concrete is poured to form the newly-added table column.
The newly-added bottom plate is formed by square concrete filled steel tube ring beams and studs, anchoring steel bars are implanted after the side surfaces of the existing foundation are roughened, the other ends of the anchoring steel bars are welded on the side surfaces of the square concrete filled steel tube ring beams, and finally secondary grouting is adopted to fill gaps. Evenly set up the baffle of putting more energy into in the square steel pipe concrete ring roof beam, and correspond the position department of bracing and also have the baffle of putting more energy into.
The inclined struts are made of round or square steel pipes, 3-6 inclined struts are arranged according to stress requirements and are uniformly arranged along the circumference, one end of each inclined strut is connected with the top surface of the newly added bottom plate, the other end of each inclined strut is connected to the same height of the wind power tower, and the inclined struts are connected in a welding or bolt mode.
Compared with the prior art, the invention has the following beneficial effects:
(1) the contact area between the existing foundation and the foundation is increased, so that the stress of the bottom surface of the foundation under the same load is smaller, and the bearing capacity and the deformation performance of the foundation are improved.
(2) Great bending moment in the bottom of the wind power tower cylinder is converted into axial force through the inclined strut, the axial force is uniformly transmitted to the newly added bottom plate, the stress form is reasonable and reliable, and the bearing capacity and the stability of the existing foundation are further improved.
(3) The size and the form of the interface of the existing foundation can meet the requirement of a new tower cylinder by adding the pillar, the foundation ring connection is converted into the prestressed anchor bolt connection, and the connection performance of the foundation and the tower cylinder is improved.
(4) The foundation is reinforced and optimized while the original structure is not damaged, the reconstruction cost of wind power engineering is reduced, the construction efficiency is improved, and the method is environment-friendly.
Drawings
FIG. 1 is an overall cross-sectional view of the present invention;
FIG. 2 is an overall plan view of the present invention;
FIG. 3 is a detailed structural diagram of the newly added stage of the present invention;
FIG. 4 is a detailed construction diagram of the newly added base plate of the present invention;
FIG. 5 is a structural view of a square concrete-filled steel tube ring beam according to the present invention;
FIG. 6 is a schematic cross-sectional view of the diagonal brace of the present invention;
in the figure: 1-existing foundation, 2-existing foundation ring, 3-wind power tower cylinder, 4-newly-added table column, 5-newly-added bottom plate, 6-inclined strut, 7-prestressed anchor bolt cage, 8-anchoring reinforcing steel bar, 9-triangular stiffening rib, 10-square steel pipe concrete ring beam, 11-bolt nail, 12-secondary grouting and 13-stiffening clapboard.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the newly added platform column 4 is cast on the top surface of the existing foundation 1 in situ; the newly added bottom plate 5 is a prefabricated part and is connected with the side surface of the existing foundation 1 through secondary grouting 12; 3 ~ 6 stumbling 6 set up as required according to the atress, evenly arrange along the circumference, and one end is connected newly-increased bottom plate 5 top surface, and the other end is connected to wind power tower cylinder 3's same high department, and the connected mode adopts welding or bolted connection.
As shown in fig. 3, the newly added platform column 4 is a cast-in-place reinforced concrete member, which needs to be reinforced according to calculation and construction requirements, and the interior of the newly added platform column contains a prestressed anchor bolt cage 7; the lower anchor ring of the prestressed anchor bolt cage 7 is welded with the side wall of the existing foundation ring 2, and meanwhile, a triangular stiffening rib 9 is arranged in a 90-degree included angle between the lower anchor ring and the existing foundation ring; the triangular stiffening ribs 9 are uniformly arranged along the circumference, and the top surface and the side surface of the triangular stiffening ribs are respectively welded with the lower anchor ring of the prestressed anchor bolt cage 7 and the side wall of the existing foundation ring 2; after top surface concrete of the existing foundation 1 is roughened, anchoring steel bars 8 are implanted, and the anchoring length of the anchoring steel bars 8 meets the stress requirement; and finally, pouring concrete.
As shown in fig. 4, the newly added bottom plate 5 is composed of a square concrete filled steel tubular ring beam 10 and a stud 11 welded on one side of the square concrete filled steel tubular ring beam; after the side surface of the existing foundation 1 is roughened, an anchoring steel bar 8 is implanted, and the anchoring length of the anchoring steel bar meets the stress requirement; the other end of the anchoring steel bar 8 is welded on the side face of the square steel tube concrete ring beam 10, and finally secondary grouting 12 is adopted to fill the gap, so that the newly-added bottom plate 5 is reliably connected with the existing foundation 1; the lower end of the inclined strut 6 is connected with the top surface of the newly added bottom plate 5 in a welding or bolt connection mode.
As shown in fig. 5, the outer shell of the square concrete filled steel tubular ring beam 10 is a square steel tube, stiffening partition plates 13 are uniformly arranged in the square steel tube, and each partitioned space is filled with concrete; a stiffening clapboard 13 is also arranged below the position connected with the inclined strut; the inner side surface of the square concrete filled steel tube ring beam 10 is uniformly provided with studs 11.
As shown in fig. 6, the diagonal brace 6 is made of a circular or square steel pipe.
The invention provides a high-performance wind power tower cylinder foundation reinforcing device. The reinforcing device is suitable for a wind power generator set with larger power while not damaging the existing foundation structure, is beneficial to expanding the capacity and increasing the efficiency of a wind power plant, reduces the reconstruction cost, improves the performance and the utilization rate of the existing foundation, and has wide engineering application prospect.
The foregoing is merely a preferred embodiment of the present invention, but the present invention is not limited to the specific embodiments described above. Those skilled in the art should appreciate that they may readily use the disclosed conception and specific embodiments as a basis for modifying, supplementing or modifying other structures for providing out the same purposes of the present invention.
Although used more herein: 1-existing foundation, 2-existing foundation ring, 3-wind power tower, 4-newly-added table column, 5-newly-added bottom plate, 6-inclined strut, 7-prestressed anchor bolt cage, 8-anchoring reinforcing steel bar, 9-triangular stiffening rib, 10-square steel tube concrete ring beam, 11-bolt nail, 12-secondary grouting, 13-stiffening partition plate and other terms, but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.
Claims (3)
1. A high-performance wind power tower cylinder foundation reinforcing device relates to the technical field of wind power generation; the high-performance wind power tower cylinder foundation reinforcing device comprises an existing foundation (1), an existing foundation ring (2), a wind power tower cylinder (3), a newly-added pillar (4), a newly-added bottom plate (5), an inclined strut (6), a prestressed anchor bolt cage (7), anchor reinforcing steel bars (8), triangular stiffening ribs (9), a square steel pipe concrete ring beam (10), studs (11), secondary grouting (12) and stiffening partition plates (13);
after the concrete on the top surface of the existing foundation (1) is chiseled, anchoring reinforcing steel bars (8) are implanted, a lower anchor ring of a prestressed anchor bolt cage (7) is welded with the existing foundation ring (2), triangular stiffening ribs (9) are uniformly arranged along the circumference, the top surface and the side surface of the triangular stiffening ribs are respectively welded with the lower anchor ring of the prestressed anchor bolt cage (7) and the side wall of the existing foundation ring (2), reinforcing steel bars are configured according to calculation and construction requirements, a formwork is supported, and concrete is poured to form a newly-added table column (4);
the newly-added bottom plate (5) is composed of a square concrete-filled steel tube ring beam (10) and studs (11), anchoring steel bars (8) are implanted after the side surface of the existing foundation (1) is roughened, the other ends of the anchoring steel bars (8) are welded to the side surface of the square concrete-filled steel tube ring beam (10), and finally secondary grouting (12) is adopted to fill gaps;
3 ~ 6 bracing (6) set up according to the atress needs, evenly arrange along the circumference, and newly-increased bottom plate (5) top surface is connected to one end, and the other end is connected to the same high department of wind power tower section of thick bamboo (3), and the connected mode adopts welding or bolted connection.
2. The high-performance wind tower foundation reinforcing apparatus of claim 1, wherein: evenly set up stiffening partition (13) in square steel pipe concrete ring beam (10), and the position department that corresponds bracing (6) also has stiffening partition (13).
3. The high-performance wind tower foundation reinforcing apparatus of claim 1, wherein: the inclined strut (6) is made of round or square steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110187826.3A CN112900513A (en) | 2021-02-18 | 2021-02-18 | High-performance wind power tower cylinder foundation reinforcing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110187826.3A CN112900513A (en) | 2021-02-18 | 2021-02-18 | High-performance wind power tower cylinder foundation reinforcing device |
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| CN112900513A true CN112900513A (en) | 2021-06-04 |
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| CN202110187826.3A Pending CN112900513A (en) | 2021-02-18 | 2021-02-18 | High-performance wind power tower cylinder foundation reinforcing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833008A (en) * | 2021-08-23 | 2021-12-24 | 山东电力工程咨询院有限公司 | Method and structure for transforming existing foundation ring type fan foundation |
| CN115125987A (en) * | 2022-07-11 | 2022-09-30 | 天津大学 | Land wind power foundation structure with capacity expansion capability and capacity expansion construction method thereof |
| CN115341595A (en) * | 2022-09-02 | 2022-11-15 | 重庆大学 | Beam-slab type wind power original site extension foundation and construction method thereof |
| CN116695771A (en) * | 2023-08-01 | 2023-09-05 | 中国建筑第六工程局有限公司 | Truss type land wind power foundation and construction method thereof |
| CN117926935A (en) * | 2024-02-02 | 2024-04-26 | 重庆大学 | Multi-stage energy consumption section of offshore wind power structure |
-
2021
- 2021-02-18 CN CN202110187826.3A patent/CN112900513A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833008A (en) * | 2021-08-23 | 2021-12-24 | 山东电力工程咨询院有限公司 | Method and structure for transforming existing foundation ring type fan foundation |
| CN113833008B (en) * | 2021-08-23 | 2023-01-10 | 山东电力工程咨询院有限公司 | Method and structure for transforming existing foundation ring type fan foundation |
| CN115125987A (en) * | 2022-07-11 | 2022-09-30 | 天津大学 | Land wind power foundation structure with capacity expansion capability and capacity expansion construction method thereof |
| CN115125987B (en) * | 2022-07-11 | 2024-06-11 | 天津大学 | Land wind power foundation structure with capacity expansion capability and capacity expansion construction method thereof |
| CN115341595A (en) * | 2022-09-02 | 2022-11-15 | 重庆大学 | Beam-slab type wind power original site extension foundation and construction method thereof |
| CN116695771A (en) * | 2023-08-01 | 2023-09-05 | 中国建筑第六工程局有限公司 | Truss type land wind power foundation and construction method thereof |
| CN116695771B (en) * | 2023-08-01 | 2023-12-12 | 中国建筑第六工程局有限公司 | Truss type land wind power foundation |
| CN117926935A (en) * | 2024-02-02 | 2024-04-26 | 重庆大学 | Multi-stage energy consumption section of offshore wind power structure |
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