CN116906273B - Concrete-steel mixing tower section of thick bamboo changeover portion connecting device - Google Patents
Concrete-steel mixing tower section of thick bamboo changeover portion connecting device Download PDFInfo
- Publication number
- CN116906273B CN116906273B CN202310914102.3A CN202310914102A CN116906273B CN 116906273 B CN116906273 B CN 116906273B CN 202310914102 A CN202310914102 A CN 202310914102A CN 116906273 B CN116906273 B CN 116906273B
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- connecting plate
- concrete
- steel
- tower section
- transition piece
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 77
- 239000010959 steel Substances 0.000 title claims abstract description 77
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 title claims description 4
- 241001330002 Bambuseae Species 0.000 title claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims description 4
- 239000011425 bamboo Substances 0.000 title claims description 4
- 230000007704 transition Effects 0.000 claims abstract description 20
- 230000009467 reduction Effects 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 9
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a concrete-steel mixing tower drum transition section connecting device which comprises an upper steel drum body, a prestressed cable and a first connecting plate fixed on the inner wall of the lower end of the steel tower section, wherein the upper end of the upper steel drum body is provided with a second connecting plate which is fixedly connected with the first connecting plate through a fastening assembly, the lower end of the upper steel drum body is provided with a third connecting plate, the third connecting plate is arranged at the upper end of the concrete tower section, and the upper end of the prestressed cable passes through the second connecting plate and the first connecting plate and is fixed on the upper surface of the first connecting plate through an anchor. The invention can enhance the connection strength with the steel tower section, improve the stress performance of the concrete tower section and improve the overall reliability and stability of the structure.
Description
Technical Field
The invention relates to the field of steel-concrete tower barrels, in particular to a concrete-steel-concrete tower barrel transition section connecting device.
Background
Wind energy is a clean renewable energy source, wind power generation is a main form of wind energy utilization, and the wind energy is one of the most large-scale development conditions and commercial development prospects besides water energy in the current renewable energy sources. Along with the increasing capacity of the wind turbine, the height of the tower is also increased, and the concrete-steel mixed tower drum is used as a preferable solution of the high tower, so that the reliability and stability of the structure of the concrete-steel mixed tower drum are related to the operation safety of the wind turbine.
The existing transition section connecting device between the concrete tower section and the steel tower section mainly has two technical problems: firstly, a flange is arranged at the bottom of a steel tower section and is connected with the steel tower section only through bolts, and fatigue damage of the bolts in the continuous running process of the fan is easy to occur due to single bolt connection; secondly, the tensioning and anchoring of the prestressed tendons are directly carried out on the contact flange of the concrete tower Duan Dingmian, and the local area concrete stress concentration is easy to cause in the tensioning process, so that the phenomenon of concrete cracking and damage is caused.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and providing the concrete-steel mixed tower drum transition section connecting device which can improve the connection strength between a concrete tower section and a steel tower section and reduce the stress concentration of the concrete tower section.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a concrete-steel mixing tower section of thick bamboo changeover portion connecting device, includes steel cylinder, prestressing force cable and fixes the first connecting plate at steel tower section lower extreme inner wall, steel cylinder upper end is equipped with the second connecting plate, the second connecting plate pass through fastening assembly with first connecting plate fixed connection, steel cylinder lower extreme is equipped with the third connecting plate, the third connecting plate is located concrete tower section upper end, prestressing force cable upper end passes second connecting plate and first connecting plate and fix through the ground tackle the upper surface of first connecting plate.
As a further improvement of the above technical scheme: the fastening assembly and the pre-stressing cables are uniformly arranged along the circumferential direction.
As a further improvement of the above technical scheme: the fastening assembly comprises a bolt and a nut matched with the bolt.
As a further improvement of the above technical scheme: the pre-stressing cables are located inside the fastening assembly.
As a further improvement of the above technical scheme: the third connecting plate is of an annular structure, and the prestress cable is located on the inner side of the third connecting plate.
As a further improvement of the above technical scheme: the rib plate is arranged on the inner wall of the upper steel cylinder body, the top of the rib plate is fixedly connected with the second connecting plate, and the bottom of the rib plate is fixedly connected with the third connecting plate.
As a further improvement of the above technical scheme: the outer side of the top end of the concrete tower section is provided with a lower steel cylinder in a surrounding mode, and the upper end of the lower steel cylinder is fixedly connected with the third connecting plate.
As a further improvement of the above technical scheme: and a vibration reduction body is filled between the lower steel cylinder body and the concrete tower section.
As a further improvement of the above technical scheme: the vibration reduction body is adhered to the inner wall of the lower steel cylinder body through an adhesive.
As a further improvement of the above technical scheme: the vibration damper is made of wear-resistant elastic materials.
Compared with the prior art, the invention has the advantages that: the concrete-steel mixed tower drum transition section connecting device adopts a scheme of double fastening of the fastening component and the prestressed cable when being connected with the steel tower section, so that on one hand, the connection strength between the steel tower section and the fastening component can be enhanced, on the other hand, the fatigue failure probability of the fastening component can be reduced, and the overall reliability and stability of the structure are improved; moreover, the prestressed cable is arranged on the first connecting plate, so that the top of the concrete tower section is prevented from being damaged when the prestress is applied, the stress performance of the concrete tower section is improved, and the prestressed cable is simple and reliable in structure and convenient to install.
Drawings
FIG. 1 is a schematic cross-sectional view of a concrete-steel hybrid tower section connecting device of the present invention connecting a steel tower section to a concrete tower Duan Zong.
Fig. 2 is an upper perspective view of the concrete-steel mixing tower transition piece connecting device of the invention.
Fig. 3 is a perspective view of the lower part of the connecting device of the transition section of the concrete-steel mixing tower.
The reference numerals in the drawings denote:
1. A steel tower section; 11. a first connection plate; 2. a concrete tower section; 31. a second connecting plate; 32. a steel cylinder is arranged; 321. rib plates; 33. a third connecting plate; 34. a lower steel cylinder; 4. a fastening assembly; 41. a bolt; 42. a nut; 5. a pre-stress cable; 51. an anchor; 6. a vibration damping body.
Detailed Description
The technical scheme of the invention will be further described in detail below with reference to the attached drawings and specific embodiments.
In the description of the present application, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Fig. 1 to 3 show an embodiment of a concrete-steel mixing tower transition section connecting device according to the present invention, which comprises an upper steel cylinder 32, a prestressed cable 5 and a first connecting plate 11 fixed on the inner wall of the lower end of the steel tower section 1, wherein the upper end of the upper steel cylinder 32 is provided with a second connecting plate 31, the second connecting plate 31 is fixedly connected with the first connecting plate 11 through a fastening assembly 4, the lower end of the upper steel cylinder 32 is provided with a third connecting plate 33, the third connecting plate 33 is arranged on the upper end of the concrete tower section 2, and the upper end of the prestressed cable 5 passes through the second connecting plate 31 and the first connecting plate 11 and is fixed on the upper surface of the first connecting plate 11 through an anchor 51.
The concrete-steel mixing tower drum transition section connecting device adopts a scheme of double fastening of the fastening component 4 and the prestressed cable 5 when being connected with the steel tower section 1, so that on one hand, the connecting strength between the steel tower section 1 can be enhanced, on the other hand, the fatigue failure probability of the fastening component 4 can be reduced, and the overall reliability and stability of the structure can be improved; moreover, the prestressed cable 5 is arranged on the first connecting plate 11, so that the top of the concrete tower section 2 is prevented from being damaged when the prestress is applied, the stress performance of the concrete tower section 2 is improved, and the prestressed cable is simple and reliable in structure and convenient to install.
In this embodiment, the fastening assembly 4 and the pre-stressing cables 5 are uniformly arranged along the circumferential direction, so that the stress performance of the first connecting plate 11 and the second connecting plate 31 can be improved, and the pressure from the steel tower segment 1 and the pressure exerted on the first connecting plate 11 by the pre-stressing cables 8 can be more uniformly conducted to the concrete tower segment 2.
In this embodiment, the fastening assembly 4 includes a bolt 41 and a nut 42 matched with the bolt 41, and the first connecting plate 11 and the second connecting plate 31 are connected by using the bolt 41, so that the fastening assembly has the advantage of being convenient to assemble and disassemble and easy to replace.
In this embodiment, the prestressed cable 5 is located at the inner side of the fastening assembly 4, so that the problem that the mounting hole of the prestressed cable 5 and the mounting hole of the bolt 41 are too concentrated, resulting in the reduction of the connection strength between the first connection plate 11 and the second connection plate 31, and the overall stability of the structure is improved.
In this embodiment, the third connecting plate 33 is in an annular structure, and the pre-stressing cable 5 is located at the inner side of the third connecting plate 33, so that the damage of the pre-stressing cable 5 and the third connecting plate 33 caused by friction in normal operation of the fan can be prevented, and the overall reliability of the structure is improved.
In this embodiment, be equipped with rib plate 321 on the upper steel cylinder 32 inner wall, the top and the second connecting plate 31 fixed connection of rib plate 321, the bottom and the third connecting plate 33 fixed connection of rib plate 321 have promoted the joint strength between upper steel cylinder 32, second connecting plate 31 and the third connecting plate 33, are favorable to exerting the pressure on first connecting plate 11 with pressure and prestressing force cable 8 from steel tower section 1 and are exerted the pressure conduction to concrete tower section 2.
In the embodiment, a lower steel cylinder 34 is arranged on the outer side of the top end of the concrete tower section 2 in a surrounding mode, and the upper end of the lower steel cylinder 34 is fixedly connected with a third connecting plate 33. The contact surface of the combination of the lower steel cylinder 34 and the third connecting plate 33 and the concrete tower section 2 is L-shaped, so that the combination can be stably connected with the steel tower section without arranging any embedded part on the concrete tower section 2, the integrity of the concrete tower section is ensured, and the integral stress performance of the concrete-steel mixed tower section is improved.
In this embodiment, the vibration damping body 6 is further filled between the lower steel cylinder 34 and the concrete tower segment 2, so that the transverse impact between the concrete-steel mixed tower cylinder transition section connecting device and the concrete tower segment 2 can be absorbed, and the overall stability of the steel mixed tower cylinder is further improved.
In the embodiment, the vibration damper 6 is adhered to the inner wall of the lower steel cylinder 34 through an adhesive, so that the vibration damper can be prevented from falling off between the lower steel cylinder 34 and the concrete tower section 2, and the stability of connection between the concrete-steel mixed tower cylinder transition section connecting device and the concrete tower section 2 is enhanced.
In this embodiment, the vibration damper 6 is made of wear-resistant elastic material, so that the service life of the present invention can be prolonged.
While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.
Claims (10)
1. A concrete-steel mixing tower section of thick bamboo changeover portion connecting device, its characterized in that: including last steel cylinder (32), prestressing force cable (5) and fix first connecting plate (11) at steel tower section (1) lower extreme inner wall, it is equipped with second connecting plate (31) to go up steel cylinder (32) upper end, second connecting plate (31) through fastening component (4) with first connecting plate (11) fixed connection, it is equipped with third connecting plate (33) to go up steel cylinder (32) lower extreme, concrete tower section (2) upper end is located to third connecting plate (33), prestressing force cable (5) upper end passes second connecting plate (31) and first connecting plate (11) and fix through ground tackle (51) the upper surface of first connecting plate (11).
2. The concrete-steel mixing tower transition piece connection device of claim 1, wherein: the fastening assembly (4) and the prestressing cables (5) are uniformly arranged along the circumferential direction.
3. The concrete-steel mixing tower transition piece connection device of claim 1, wherein: the fastening assembly (4) comprises a bolt (41) and a nut (42) matched with the bolt (41).
4. The concrete-steel mixing tower transition piece connection device of claim 1, wherein: the pre-stressing cables (5) are located inside the fastening assembly (4).
5. The concrete-steel mixing tower transition piece connection device of claim 1, wherein: the third connecting plate (33) is of an annular structure, and the prestressed cable (5) is positioned on the inner side of the third connecting plate (33).
6. The concrete-steel mixing tower transition piece connection device of claim 1, wherein: be equipped with rib plate (321) on last steel cylinder (32) inner wall, the top of rib plate (321) with second connecting plate (31) fixed connection, the bottom of rib plate (321) with third connecting plate (33) fixed connection.
7. The concrete-steel mixing tower transition piece connection device according to any one of claims 1-6, wherein: the outer side of the top end of the concrete tower section (2) is provided with a lower steel cylinder body (34) in a surrounding mode, and the upper end of the lower steel cylinder body (34) is fixedly connected with the third connecting plate (33).
8. The concrete-steel mixing tower transition piece connection device of claim 7, wherein: and a vibration reduction body (6) is also filled between the lower steel cylinder (34) and the concrete tower section (2).
9. The concrete-steel mixing tower transition piece connection device of claim 8, wherein: the vibration damper (6) is adhered to the inner wall of the lower steel cylinder (34) through an adhesive.
10. The concrete-steel mixing tower transition piece connection device of claim 8, wherein: the vibration damper (6) is made of wear-resistant elastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310914102.3A CN116906273B (en) | 2023-07-24 | 2023-07-24 | Concrete-steel mixing tower section of thick bamboo changeover portion connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310914102.3A CN116906273B (en) | 2023-07-24 | 2023-07-24 | Concrete-steel mixing tower section of thick bamboo changeover portion connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116906273A CN116906273A (en) | 2023-10-20 |
| CN116906273B true CN116906273B (en) | 2024-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310914102.3A Active CN116906273B (en) | 2023-07-24 | 2023-07-24 | Concrete-steel mixing tower section of thick bamboo changeover portion connecting device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202673588U (en) * | 2012-07-09 | 2013-01-16 | 北京金风科创风电设备有限公司 | Device for connecting concrete tower drum with steel tower drum |
| CN105909477A (en) * | 2016-04-20 | 2016-08-31 | 广东明阳风电产业集团有限公司 | Transition section structure connecting steel tower drum with prestressed concrete tower drum |
| CN205638803U (en) * | 2016-04-20 | 2016-10-12 | 广东明阳风电产业集团有限公司 | Changeover portion structure of connecting a steel tower section of thick bamboo and a prestressed concrete tower section of thick bamboo |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10230273B3 (en) * | 2002-07-05 | 2004-02-12 | Institut für Fertigteiltechnik und Fertigbau Weimar e.V. | Wind turbine tower has flanged cylindrical coupling piece for attaching upper cylindrical steel section to lower cylindrical concrete section |
| CN206468489U (en) * | 2016-11-18 | 2017-09-05 | 江苏金海新能源科技有限公司 | A kind of prestressed concrete tower bolt and steel strand wires connection transfer device |
| CN207033662U (en) * | 2017-06-19 | 2018-02-23 | 上海电气风电集团有限公司 | A kind of transition section structure of steel reinforced concrete pylon |
| CN207526645U (en) * | 2017-10-30 | 2018-06-22 | 北京万源工业有限公司 | A kind of mixing tower connection structure |
| CN208057316U (en) * | 2018-03-06 | 2018-11-06 | 中国电建集团华东勘测设计研究院有限公司 | A kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement |
| CN210564899U (en) * | 2019-06-25 | 2020-05-19 | 中国电建集团华东勘测设计研究院有限公司 | Novel conversion of prestressing force steel concrete tower changeover portion device |
| CN110259643A (en) * | 2019-06-25 | 2019-09-20 | 中国电建集团华东勘测设计研究院有限公司 | A kind of novel pre-stressed steel reinforced concrete pylon changeover portion conversion equipment |
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2023
- 2023-07-24 CN CN202310914102.3A patent/CN116906273B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202673588U (en) * | 2012-07-09 | 2013-01-16 | 北京金风科创风电设备有限公司 | Device for connecting concrete tower drum with steel tower drum |
| CN105909477A (en) * | 2016-04-20 | 2016-08-31 | 广东明阳风电产业集团有限公司 | Transition section structure connecting steel tower drum with prestressed concrete tower drum |
| CN205638803U (en) * | 2016-04-20 | 2016-10-12 | 广东明阳风电产业集团有限公司 | Changeover portion structure of connecting a steel tower section of thick bamboo and a prestressed concrete tower section of thick bamboo |
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| CN116906273A (en) | 2023-10-20 |
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