CN219654820U - Upper and lower connection structure of prefabricated ultra-high performance concrete circular cylinder of tower section of thick bamboo - Google Patents
Upper and lower connection structure of prefabricated ultra-high performance concrete circular cylinder of tower section of thick bamboo Download PDFInfo
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- CN219654820U CN219654820U CN202321135678.1U CN202321135678U CN219654820U CN 219654820 U CN219654820 U CN 219654820U CN 202321135678 U CN202321135678 U CN 202321135678U CN 219654820 U CN219654820 U CN 219654820U
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- performance concrete
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- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 61
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 title claims description 3
- 241001330002 Bambuseae Species 0.000 title claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims description 3
- 239000011425 bamboo Substances 0.000 title claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 83
- 239000010959 steel Substances 0.000 claims abstract description 83
- 238000004873 anchoring Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims 1
- 239000011150 reinforced concrete Substances 0.000 description 13
- 238000010276 construction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
Abstract
The utility model discloses an upper and lower connection structure of a prefabricated ultra-high performance concrete circular cylinder of a tower cylinder, which comprises a first circular steel flange plate and a second circular steel flange plate which are fixed with the prefabricated ultra-high performance concrete of the circular cylinder in a pouring way, wherein a first transverse plate of the first circular steel flange plate and a second transverse plate of the second circular steel flange plate are both extended inwards and are fixed by adopting a plurality of first bolts and nuts; the first outer vertical plate of the first round steel flange plate is downwards extended, the outer side of the second outer vertical plate of the second round steel flange plate is clung to the lower extension plate of the first outer vertical plate of the first round steel flange plate, a plurality of coaxial thread holes are formed in the circumference, and a plurality of second fastening bolts are screwed in the thread holes of the two coaxial threads in a one-to-one correspondence mode. The connecting structure can enhance the firmness and reliability of the connection between the upper part and the lower part, the wind resistance and the safety of the tower barrel, and the operation is relatively simple and convenient when the connection between the upper part and the lower part is fixed.
Description
Technical Field
The utility model relates to the technical field of wind power generation equipment, in particular to an upper and lower connection structure of a prefabricated ultra-high performance concrete circular cylinder of a tower cylinder.
Background
The tower barrels assembled by precast reinforced concrete round barrels, such as equal-diameter round barrels of wind towers, are already mature prior art. Precast reinforced concrete is also known as precast reinforced concrete. The prefabricated reinforced concrete circular cylinder is also called prefabricated reinforced concrete section.
But for more than ten years, some technicians have begun to replace conventional reinforced concrete with UHPC, ultra-high performance concrete. Compared with a steel structure tower, the tower formed by connecting the prefabricated ultra-high performance concrete circular cylinders is more durable, and the corrosion prevention maintenance cost is lower. Compared with the prefabricated common reinforced concrete circular cylinders assembled into the tower cylinder, the prefabricated ultra-high performance concrete circular cylinders which are connected with each other to form the tower cylinder fully utilize the characteristics of ultra-high compression resistance, tensile resistance, high durability, light weight (such as about 50 percent weight reduction) and the like of the ultra-high performance concrete, the single-piece hoisting weight of each prefabricated ultra-high performance concrete circular cylinder is relatively small, the hoisting construction cost is relatively low, and the defects that the common prefabricated reinforced concrete circular cylinder can only be prefabricated in a piece mode, lifted and assembled due to the fact that the common prefabricated reinforced concrete circular cylinder cannot be hoisted in the whole cylinder due to the weight are overcome, the construction process is relatively complex, and the integrity of the circular cylinder is relatively poor. A circular cylinder is also called a segment. When the upper and lower circular cylinders are assembled, the upper circular cylinder is also called an upper section, and the lower circular cylinder is a lower section.
However, the upper and lower connection structures of prefabricated ultra-high performance concrete circular cylinders of the tower cylinder in the prior art still have the following defects: 1. the firmness and reliability of the connecting structure between the upper part and the lower part of the prefabricated ultra-high performance concrete circular cylinder of the tower cylinder still have room for improving the wind resistance and the safety performance of the formed tower cylinder. 2. The operation is still relatively complicated and difficult when the prefabricated ultra-high performance concrete circular cylinder of the tower cylinder is fixedly connected between the upper part and the lower part.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the upper and lower connection structure of the prefabricated ultra-high performance concrete circular cylinder of the tower cylinder, which can enhance the firmness and reliability of the connection between the upper and lower parts, the wind resistance and the safety of the tower cylinder, and is relatively simple and convenient to operate when the connection between the upper and lower parts is fixed.
The technical proposal of the utility model is to provide an upper and lower connection structure of a prefabricated ultra-high performance concrete circular cylinder of a tower cylinder, which comprises a first circular steel flange plate and a second circular steel flange plate which are fixed with the prefabricated ultra-high performance concrete of the circular cylinder by pouring,
the first round steel flange is positioned at the bottom end of the round cylinder, the cross section of the first round steel flange is -shaped with an upward opening, a first transverse plate of the first round steel flange extends inwards, and a first outer vertical plate of the first round steel flange extends downwards;
the second round steel flange is positioned at the top end of the round cylinder, the cross section of the second round steel flange is -shaped with a downward opening, and a second transverse plate of the second round steel flange extends inwards;
the first transverse plate of the first circular steel flange plate and the second transverse plate of the second circular steel flange plate are circumferentially provided with a plurality of coaxial through holes, and a plurality of first fastening bolts penetrate through the two coaxial through holes one by one and are fastened by nuts;
the outside of the second outer riser of the second circular steel flange is clung to the lower extension plate of the first outer riser of the first circular steel flange, the lower extension plate of the first outer riser of the first circular steel flange is circumferentially provided with a plurality of coaxial threaded holes on the second outer riser of the second circular steel flange, and a plurality of second fastening bolts are screwed in the threaded holes of the two coaxial lines in a one-to-one correspondence manner.
After the structure is adopted, the upper and lower connecting structure of the prefabricated ultra-high performance concrete circular cylinder of the tower cylinder has the following advantages: the firmness and reliability of the connecting structure between the upper part and the lower part of the prefabricated ultra-high-performance concrete circular cylinder of the tower cylinder and the wind resistance and the safety performance of the formed tower cylinder are improved to a great extent, namely the connecting structure between the upper part and the lower part of the prefabricated ultra-high-performance concrete circular cylinder of the tower cylinder is firm and reliable, the wind resistance of the tower cylinder formed by connecting and fixing the connecting structure between the upper part and the lower part of the prefabricated ultra-high-performance concrete circular cylinder is strong, and the safety performance is good. And when the connection is fixed, only the first fastening bolt and the nut are fastened on the inner side of the cylinder, the second fastening bolt is fastened on the outer side of the cylinder, and the connection of the upper cylinder and the lower cylinder is simple, convenient and quick to operate, the electric fastening tool can be used for fastening, the construction efficiency is high, and the construction process is safe and reliable.
Further, a plurality of anchoring nails are circumferentially fixed on the side wall, close to the ultra-high-performance concrete, of the first inner vertical plate of the first circular steel flange plate, on the side wall, close to the ultra-high-performance concrete, of the first outer vertical plate of the first circular steel flange plate, on the side wall, close to the ultra-high-performance concrete, of the second inner vertical plate of the second circular steel flange plate, and on the side wall, close to the ultra-high-performance concrete, of the second outer vertical plate of the second circular steel flange plate. After the structure is adopted, the anchoring property of the connecting structure and the ultra-high performance concrete is better, and the firmness and the reliability of the connecting structure between the upper part and the lower part of the prefabricated ultra-high performance concrete circular cylinder of the tower cylinder and the wind resistance and the safety performance of the formed tower cylinder are further improved.
Further, the large end of each anchor pin is remote from the riser. After the structure is adopted, the anchoring property of the connecting structure and the ultra-high performance concrete is better, and the firmness and the reliability of the connecting structure between the upper part and the lower part of the prefabricated ultra-high performance concrete circular cylinder of the tower cylinder and the wind resistance and the safety performance of the formed tower cylinder are further improved.
Further, a plurality of triangular steel stiffening plates are fixed on the first transverse extension plate and the first inner vertical plate, wherein the first transverse extension plate of the first circular steel flange plate extends inwards, and the triangular steel stiffening plates are fixed on the first transverse extension plate and the first inner vertical plate along the circumference; a plurality of triangular steel stiffening plates are fixed on the second transverse extension plate and the second inner vertical plate, wherein the second transverse extension plate extends inwards, and the triangular steel stiffening plates are fixed on the second transverse extension plate and the second inner vertical plate along the circumference. After the structure is adopted, the upper and lower connecting structures are firmer, and the bending resistance, the compression resistance and the wind resistance are stronger. The firmness and the reliability of the connecting structure between the upper part and the lower part of the prefabricated ultra-high performance concrete circular cylinder of the tower cylinder and the wind resistance and the safety performance of the formed tower cylinder are further improved.
Further, the second fastening bolt penetrates into the ultra-high performance concrete to double as an anchor bolt. After the structure is adopted, the firmness and the reliability of the connecting structure between the upper part and the lower part of the prefabricated ultra-high-performance concrete circular cylinder of the tower cylinder and the wind resistance and the safety performance of the formed tower cylinder are further improved.
Further, the second inner riser is at the same height as the lower extension plate of the first outer riser; the bottom end of the second outer vertical plate is curled outwards, and the top surface of the curled edge is propped against the bottom surface of the lower extension plate of the first outer vertical plate. After the structure is adopted, the firmness and the reliability of the connecting structure between the upper part and the lower part of the prefabricated ultra-high-performance concrete circular cylinder of the tower cylinder and the wind resistance and the safety performance of the formed tower cylinder are further improved, and the operation is simpler, more convenient and quicker during construction.
Further, the through holes, the first fastening bolts, the nuts, the threaded holes, the second fastening bolts and the triangular steel stiffening plates are uniformly arranged along the circumference. After the structure is adopted, the upper and lower circular cylinders are connected and fixed, the operation is simpler, more convenient and quicker, the construction efficiency is higher, the construction process is safer and more reliable, and the mechanical property of the connecting structure is better.
Drawings
Fig. 1 is a schematic structural view of a tower drum formed by adopting an upper and lower connection structure of a prefabricated ultra-high performance concrete circular drum, which is fixed on a reinforced concrete base and is provided with a rotary blade and a wind power machine case (the tower drum adopts a drawing method of omitting the height).
Fig. 2 is a schematic structural view of a tower drum constructed by adopting the upper and lower connection structures of the prefabricated ultra-high-performance concrete circular drum according to the present utility model (by omitting the drawing of the height).
Fig. 3 is a schematic view of the vertical section of fig. 2 at the connection structure with the upper and lower ends omitted (with the height omitted).
Fig. 4 is a schematic cross-sectional top view of the connection structure of fig. 2.
Fig. 5 is an enlarged schematic view of the connection structure a in fig. 4 in longitudinal section.
The figure shows: 1. the wind turbine comprises a rotating blade, 2, a wind turbine case, 3, a tower drum, 4, a reinforced concrete base, 5, a steel stiffening plate, 6, a through hole, 7, a second round steel flange, 8, a round drum, 9, a first round steel flange, 10, an upper round drum, 11, a second fastening bolt, 12, a lower round drum, 13, ultra-high performance concrete, 14, a first inner vertical plate, 15, a screw cap, 16, a first transverse extension plate, 17, a second transverse extension plate, 18, a first fastening bolt, 19, a second inner vertical plate, 20, a curled edge, 21, a second outer vertical plate, 22, a lower extension plate, 23, a second transverse plate, 24, a first transverse plate, 25, a first outer vertical plate, 26, an anchor nail, 27 and a big head.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings. It should be noted that the description of these embodiments is for aiding in understanding the present utility model, but is not to be construed as limiting the utility model. In addition, the technical features described in the following embodiments of the present utility model may be combined with each other as long as they do not collide with each other.
As shown in fig. 1, 2, 3, 4, and 5.
The tower 3 formed by connecting and fixing the prefabricated ultra-high performance concrete circular cylinder and the upper and lower connecting structures is also required to be connected and fixed with the cast-in-situ reinforced concrete base 4, namely the reinforced concrete base, and the rotating blade 1, the wind power machine box 2 and the like of the wind power generator are arranged at the top end of the prefabricated ultra-high performance concrete tower 3, which are all the prior art and are not the scope of the utility model, so the utility model is not described herein.
The upper and lower connection structure of the prefabricated ultra-high performance concrete circular cylinder of the tower cylinder comprises a first circular steel flange 9 and a second circular steel flange 7 which are fixedly poured with the prefabricated ultra-high performance concrete 13 of the circular cylinder 8.
The upper and lower connecting structures can also be called upper and lower connecting and fixing structures or upper and lower mutually anchoring structures. The tower 3 is also called wind tower. The cylinder 8 is also called a segment. When the upper and lower cylinders are assembled, the upper cylinder 10 is also referred to as an upper segment and the lower cylinder 12 is also referred to as a lower segment. Ultra high performance concrete 13, UHPC (Ultra-High Performance Concrete) for short.
The first round steel flange 9 is located at the bottom end of the round tube 8, the cross section of the first round steel flange 9 is -shaped with an upward opening, the first transverse plate 24 of the first round steel flange 9 extends inwards, and the first outer vertical plate 25 of the first round steel flange 9 extends downwards.
The second circular steel flange 7 is positioned at the top end of the circular cylinder 8, the cross section of the second circular steel flange 7 is -shaped with a downward opening, and the second transverse plate 23 of the second circular steel flange 7 extends inwards.
The first transverse plate 24 of the first circular steel flange 9 and the second transverse plate 23 of the second circular steel flange 7 are circumferentially provided with a plurality of coaxial through holes 6, and a plurality of first fastening bolts 18 pass through the two coaxial through holes 6 in a one-to-one correspondence manner and are fastened by nuts 15.
The outside of the second outer riser 21 of the second circular steel flange 7 is clung to the lower extension plate 22 of the first outer riser 25 of the first circular steel flange 9, a plurality of coaxial thread holes are circumferentially arranged on the lower extension plate 22 of the first outer riser 25 of the first circular steel flange 9 and the second outer riser 21 of the second circular steel flange 7, and a plurality of second fastening bolts 11 are screwed in the thread holes of the two coaxial threads in a one-to-one correspondence manner. The second fastening bolt 11 penetrates into the ultra-high performance concrete 13 to double as an anchor bolt. The length of the second fastening bolt 11 is preferably longer than the length of the anchor nail 26 described below, so that the anchoring effect is better.
A plurality of anchor nails 26 are fixed, such as welded or interference fit, along the circumference on the side wall of the first inner riser 14 of the first circular steel flange 9, which is close to the ultra-high performance concrete 3, on the side wall of the first outer riser 25 of the first circular steel flange 9, which is close to the ultra-high performance concrete 13, on the side wall of the second inner riser 19 of the second circular steel flange 7, which is close to the ultra-high performance concrete 13, and on the side wall of the second outer riser 21 of the second circular steel flange 7, which is close to the ultra-high performance concrete 13. The large head 27 of each anchor stud 26 is remote from the riser, i.e. from the first inner riser 14, the first outer riser 25, the second inner riser 19, the second outer riser 21.
The first transverse extension plate 16 of the first circular steel flange 9, which extends inwards, and the first inner vertical plate 14 are circumferentially fixed with a plurality of triangular steel stiffening plates 5, such as welded. A plurality of triangular steel stiffening plates 5 are also fixed on the second transverse extension plate 17 and the second inner vertical plate 19, wherein the second transverse extension plate 23 extends inwards.
The second inner riser 19 is preferably of equal height to the lower extension panel 22 of the first outer riser 25. The bottom end of the second outer riser 21 is preferably an outwardly curled edge 20, the top surface of the curled edge 20 abutting the bottom surface of the lower extension plate 22 of the first outer riser 25.
The through holes 6, the first fastening bolts 18, the nuts 15, the threaded holes, the second fastening bolts 11 and the triangular steel stiffening plates 5 are preferably uniformly distributed along the circumference. The second fastening bolt 11 may also be referred to as a fastening screw.
The above-noted components or structures or numbers are not shown in the figures. The drawings are schematic only, and the text descriptions will be followed if the drawings do not coincide with the text descriptions or if the drawings do not coincide with each other.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The utility model provides a connection structure about prefabricated ultra-high performance concrete circular cylinder of tower section of thick bamboo, includes first circular steel flange and the circular steel flange of second fixed with the prefabricated ultra-high performance concrete casting of circular cylinder, its characterized in that:
the first round steel flange is positioned at the bottom end of the round cylinder, the cross section of the first round steel flange is -shaped with an upward opening, a first transverse plate of the first round steel flange extends inwards, and a first outer vertical plate of the first round steel flange extends downwards;
the second round steel flange is positioned at the top end of the round cylinder, the cross section of the second round steel flange is -shaped with a downward opening, and a second transverse plate of the second round steel flange extends inwards;
the first transverse plate of the first circular steel flange plate and the second transverse plate of the second circular steel flange plate are circumferentially provided with a plurality of coaxial through holes, and a plurality of first fastening bolts penetrate through the two coaxial through holes one by one and are fastened by nuts;
the outside of the second outer riser of the second circular steel flange is clung to the lower extension plate of the first outer riser of the first circular steel flange, the lower extension plate of the first outer riser of the first circular steel flange is circumferentially provided with a plurality of coaxial threaded holes on the second outer riser of the second circular steel flange, and a plurality of second fastening bolts are screwed in the threaded holes of the two coaxial lines in a one-to-one correspondence manner.
2. The up-down connection structure of a prefabricated ultra-high performance concrete circular cylinder of a tower according to claim 1, wherein: a plurality of anchoring nails are circumferentially fixed on the side wall, close to the ultra-high-performance concrete, of the first inner vertical plate of the first circular steel flange plate, on the side wall, close to the ultra-high-performance concrete, of the first outer vertical plate of the first circular steel flange plate, on the side wall, close to the ultra-high-performance concrete, of the second inner vertical plate of the second circular steel flange plate, and on the side wall, close to the ultra-high-performance concrete, of the second outer vertical plate of the second circular steel flange plate.
3. The upper and lower connection structure of a prefabricated ultra-high performance concrete circular cylinder of a tower according to claim 2, characterized in that: the large end of each anchor nail is far away from the vertical plate.
4. The up-down connection structure of a prefabricated ultra-high performance concrete circular cylinder of a tower according to claim 1, wherein: a plurality of triangular steel stiffening plates are fixed on the first transverse extension plate and the first inner vertical plate, which are extended inwards by the first transverse plate of the first round steel flange plate, along the circumference; a plurality of triangular steel stiffening plates are fixed on the second transverse extension plate and the second inner vertical plate, wherein the second transverse extension plate extends inwards, and the triangular steel stiffening plates are fixed on the second transverse extension plate and the second inner vertical plate along the circumference.
5. The up-down connection structure of a prefabricated ultra-high performance concrete circular cylinder of a tower according to claim 1, wherein: the second fastening bolt penetrates into the ultra-high performance concrete to double as an anchor bolt.
6. The up-down connection structure of a prefabricated ultra-high performance concrete circular cylinder of a tower according to claim 1, wherein: the second inner vertical plate is equal to the lower extension plate of the first outer vertical plate in height; the bottom end of the second outer vertical plate is curled outwards, and the top surface of the curled edge is propped against the bottom surface of the lower extension plate of the first outer vertical plate.
7. The up-down connection structure of a prefabricated ultra-high performance concrete circular cylinder of a tower according to any one of claims 1 to 6, wherein: the through holes, the first fastening bolts, the nuts, the threaded holes, the second fastening bolts and the triangular steel stiffening plates are uniformly arranged along the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321135678.1U CN219654820U (en) | 2023-05-10 | 2023-05-10 | Upper and lower connection structure of prefabricated ultra-high performance concrete circular cylinder of tower section of thick bamboo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321135678.1U CN219654820U (en) | 2023-05-10 | 2023-05-10 | Upper and lower connection structure of prefabricated ultra-high performance concrete circular cylinder of tower section of thick bamboo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219654820U true CN219654820U (en) | 2023-09-08 |
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ID=87879884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321135678.1U Active CN219654820U (en) | 2023-05-10 | 2023-05-10 | Upper and lower connection structure of prefabricated ultra-high performance concrete circular cylinder of tower section of thick bamboo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219654820U (en) |
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2023
- 2023-05-10 CN CN202321135678.1U patent/CN219654820U/en active Active
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