CN112483328A - Prefabricated dry-type assembled concrete-steel hybrid tower of wind generating set - Google Patents
Prefabricated dry-type assembled concrete-steel hybrid tower of wind generating set Download PDFInfo
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- CN112483328A CN112483328A CN202011508350.0A CN202011508350A CN112483328A CN 112483328 A CN112483328 A CN 112483328A CN 202011508350 A CN202011508350 A CN 202011508350A CN 112483328 A CN112483328 A CN 112483328A
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- 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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- 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
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a prefabricated dry-type assembled concrete-steel hybrid tower of a wind generating set, which comprises an upper steel tower, a lower concrete tower and prestressed tendons, wherein the upper steel tower is connected with the lower concrete tower through a steel cable; the lower concrete tower is prefabricated in a segmented and segmented factory and assembled in a dry-type on-site mode, the bottom end of the lower concrete tower is placed in a reserved mounting groove of a wind generating set foundation and connected in a grouting mode, the top end of the lower concrete tower is connected with the upper steel tower, and the prestressed tendons are arranged on the lower concrete tower in an in-vivo or in-vitro arrangement mode. The tower disclosed by the invention can provide larger bearing capacity and higher rigidity, has good economy and meets the design and use requirements of a large-capacity unit and a high tower. The lower concrete tower frame is connected in a dry mode in the assembling process, the contact surface does not need grouting, setting slurry or coating any bonding material, and each section of leveling is not needed in the installation process, so that the installation process is greatly simplified, the installation time is saved, the production and construction efficiency is improved, and the cost of the concrete tower frame is effectively reduced.
Description
Technical Field
The invention relates to the technical field of wind driven generator towers, in particular to a prefabricated dry-type assembled concrete-steel mixed tower of a wind driven generator set.
Background
And the electricity consumption cost reduction LCOE becomes an urgent demand and a key factor for the current and future wind power development after entering the era of bidding and flat price internet surfing. As an important large part of the fan, the competitiveness of the tower has a remarkable influence on the competitiveness of the unit and even the electricity cost of the whole project. With the overall promotion of large-scale wind turbines and the development of wind farms to low-wind-speed areas, the market puts higher requirements on the height, safety, reliability and economy of the tower. Conventional cylindrical steel towers face increasing difficulties in application in large capacity units and ultra high towers due to transportation conditions and economic limits. New tower forms, such as concrete towers, lattice steel towers, segmented steel towers, and the like, are continuously developed, wherein the concrete towers are widely concerned with good structural performance and development prospect, and are applied to projects to a certain extent. In view of the disclosed concrete tower technology, a prefabricated concrete tower is mainly adopted, and a part of items adopt a cast-in-place structure. The precast concrete tower adopts a cylindrical or conical tower body, is divided into a plurality of annular shell sections along the height, and each shell section consists of 1 or a plurality of arc-shaped tower shell sections. And the adjacent two annular shell sections and the adjacent arc-shaped tower shell pieces are connected by grouting. The assembly of the arc-shaped tower cylinder piece or the hoisting of the annular cylinder section is directly carried out under the limitation of the prefabrication precision of the components, and the precision after the assembly can not meet the requirement. Therefore, the arc-shaped cylinder sheet and the annular cylinder section need to be leveled and positioned firstly in the assembling process, and grouting connection is carried out after the precision requirement is met. The whole assembly operation is complex, the consumed time is long, the consumption of auxiliary materials is increased, the construction period of the concrete tower is prolonged, the occupied space is large, the cost is increased, and the market popularization and the engineering application of the concrete tower are influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a prefabricated dry-type assembled concrete-steel hybrid tower of a wind generating set, which makes full use of the advantages of high rigidity, high damping and small transportation constraint of the concrete tower and the advantages of quick installation and light structure of the steel tower, and obtains a tower design with good economical efficiency by combining the concrete tower and the steel tower. By means of design innovation of a concrete tower structure form and improvement of prefabrication production precision, high precision and high quality of prefabricated parts are guaranteed, and requirements of dry type assembly of the parts are met. The tower sections and the tower pieces are installed and positioned through the pre-buried positioning device in the assembling process, and then the tower sections and the tower pieces are connected through the bolts without grouting or coating a bonding material on a contact surface, so that the installation process is greatly simplified, the installation time is saved, the production and construction efficiency is improved, and the cost of the concrete tower is effectively reduced.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: a prefabricated dry-type assembly concrete-steel hybrid tower of a wind generating set comprises an upper steel tower, a lower concrete tower and prestressed tendons; the lower concrete tower frame is formed by sequentially splicing a first prefabricated tower section positioned at the top and a plurality of sections of second prefabricated tower sections positioned below the first prefabricated tower section, two adjacent prefabricated tower sections are connected through a dry-type connecting structure, each section of second prefabricated tower section is formed by splicing a plurality of arc-shaped prefabricated tower pieces along the circumferential direction, two adjacent arc-shaped prefabricated tower pieces are connected through the dry-type connecting structure, the bottom end of the lower concrete tower frame is placed in a reserved mounting groove of a wind generating set foundation and connected through grouting, and the top end of the lower concrete tower frame is connected with the upper steel tower frame; the prestressed tendons are provided with a plurality of bundles which are uniformly distributed along the circumferential direction of the lower concrete tower, each bundle of prestressed tendons is tensioned along the whole body of the lower concrete tower, the top end of each bundle of prestressed tendons is anchored on a bottom flange of the upper steel tower, and the bottom end of each bundle of prestressed tendons is anchored in the basic concrete; the upper steel tower frame and the lower concrete tower frame are connected into a whole through the integral tensioning action of the prestressed tendons.
Further, the lower concrete tower is of a cylindrical structure, and the shape of the cylinder is a cone with equal slope, a cone with sectional variable slope or a cylinder.
Furthermore, the first prefabricated tower section is of an integral non-split concrete structure, a steel base plate is arranged at the top end of the first prefabricated tower section, the shape of the top end of the first prefabricated tower section is matched with the shape of the bottom end of the upper steel tower frame, the tower section is a conversion section and is connected with the upper steel tower frame through a dry type connecting structure, and a pore channel which is the same as the prestressed tendon cluster is reserved on the wall of the tower section and is used for penetrating through the prestressed tendons.
Furthermore, the upper and lower connection end surfaces of the arc-shaped prefabricated tower piece are provided with a positioning embedded part and a hoisting embedded part, and vertical splicing seams between two adjacent prefabricated tower sections are staggered.
Furthermore, the positions, close to the outer side of the tower, on the left and right connecting end surfaces of the arc-shaped prefabricated tower piece are provided with grooves for mounting waterproof materials, and the positions of the four connecting end surfaces are provided with waterproof sealing strips.
Furthermore, the planeness of the four connecting end faces of the arc-shaped prefabricated tower pieces does not exceed 1mm, and after the plurality of arc-shaped prefabricated tower pieces are assembled into the second prefabricated tower section, the planeness of the upper surface and the planeness of the lower surface of the second prefabricated tower section are not more than 3mm, and the deviation of the inner diameter of the second prefabricated tower section after ring forming is not more than 2 mm.
Further, the lower concrete tower is provided with a door opening at a designated position.
Further, the prestressed tendons are arranged in vivo or in vitro; when the in-vivo arrangement mode is adopted, a prestressed tendon pore channel is reserved in the lower concrete tower barrel wall.
Furthermore, each prestressed tendon comprises a plurality of steel strands.
Further, the upper steel tower is of a cylindrical or conical tubular structure and consists of one or more steel tower sections with flanges at two ends; the steel tower sections are sequentially connected through bolts, the bottom flange of the steel tower section at the bottommost end is provided with a hole channel which is the same as the prestressed tendon cluster, and the prestressed tendon penetrates through the corresponding hole channel on the flange and is anchored in an anchorage device of the bottom flange.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the concrete tower frame adopts a form of segmented and segmented factory prefabrication and on-site dry assembly, the tower pieces and the tower sections are installed and positioned through the positioning embedded parts in the assembly process and then connected through the bolts, each section of the tower section does not need to be leveled, and no wet operation of grouting, setting slurry or coating resin is performed, so that the installation process is greatly simplified, the installation time is saved, the production and construction efficiency is improved, and the cost of the concrete tower frame is reduced.
2. The invention is different from the existing concrete tower cylinder which adopts a vertical mould and a vertical pouring mode, the arc-shaped prefabricated tower pieces adopt a horizontal mould and horizontal pouring, the periphery of the horizontal mould is provided with high-precision end moulds, and a top blanking production mode is adopted, so that the end surface of each tower piece connected with other tower pieces has good manufacturing precision and quality.
Drawings
Fig. 1 is an overall structural view of the present invention.
Fig. 2 is a schematic view of the structure of a lower concrete tower according to the present invention.
Fig. 3 is a schematic view of a positioning hole installed between two sections of tower sections of the lower concrete tower of the invention.
Fig. 4 is a schematic structural view of a single second prefabricated tower section of the present invention.
FIG. 5 is a schematic structural view of a single curved prefabricated tower segment according to the present invention.
Fig. 6 is a schematic structural view of a first prefabricated tower section of the present invention.
FIG. 7 is a schematic structural view of a steel tie plate on a first prefabricated tower section according to the present invention.
FIG. 8 is a schematic structural view of a single section of the upper steel tower of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples.
As shown in fig. 1, the prefabricated dry-type assembled concrete-steel hybrid tower of the wind generating set according to the embodiment includes a lower concrete tower 2, an upper steel tower 3 and a prestressed tendon 4; the lower concrete tower 2 is prefabricated in a segmented and segmented factory and is assembled in a dry-type mode on site, the bottom end of the lower concrete tower is placed in a reserved mounting groove of the wind generating set foundation 1 and is connected in a grouting mode, a waterproof measure of waterproof coiled materials or waterproof coatings is adopted at a joint, the top end of the lower concrete tower is connected with the upper steel tower 3, and a door opening is formed in a designated position of the lower concrete tower; the prestressed tendons 4 are provided with a plurality of bundles, and each bundle of prestressed tendons 4 comprises a plurality of steel strands; the prestressed tendons 4 are arranged in an in-vivo or in-vitro manner, wherein when the in-vivo arrangement manner is adopted, the wall of the lower concrete tower 2 is reserved with channels which are the same as the prestressed tendons 4 in a cluster, and a plurality of prestressed tendons 4 penetrate through the channels of the prestressed tendons of the lower concrete tower 2; when an external arrangement mode is adopted, a plurality of prestressed tendons 4 are arranged outside the cylinder wall of the lower concrete tower 2; the top anchorage device 5 of each prestressed tendon 4 is anchored on the bottom flange of the upper steel tower frame 3, the bottom anchorage device 6 of each prestressed tendon is anchored on the concrete of the foundation 1, and the prestressed tendons 4 are tensioned along the whole body of the lower concrete tower frame 2 and can be tensioned at the top end or the bottom end according to the convenience of construction conditions; the upper steel tower frame 3 and the lower concrete tower frame 2 are connected into a whole through the whole tensioning action of the prestressed tendons 4, and adjacent tower sections are kept in close contact on the whole contact surface and stressed uniformly by means of good manufacturing precision of the upper end surface and the lower end surface of the tower sections.
As shown in fig. 2, the lower concrete tower 2 is a cylindrical structure, and the cylindrical shape may be an equal slope conical shape, a sectional variable slope conical shape or a cylindrical shape, preferably a conical-cylindrical structure; the lower concrete tower 2 is formed by sequentially splicing a first prefabricated tower section 201 positioned at the top and a plurality of sections of second prefabricated tower sections 202 positioned below the first prefabricated tower section 201, and two adjacent tower sections are connected through a dry-type connecting structure; and the two adjacent tower sections are provided with one-to-one corresponding mounting positioning holes, that is, the lower positioning hole 203 on the top surface of the lower tower section is in one-to-one correspondence with the upper positioning hole 204 on the bottom surface of the upper tower section, as shown in fig. 3, positioning sleeves are pre-embedded in the two positioning holes, when the lower concrete tower 2 is mounted, the positioning pin 205 is inserted into the lower positioning hole 203, and then the upper positioning hole 204 is aligned with the positioning pin 205 and slowly lowered down; in the installation process, each tower section does not need to be leveled, bonding materials such as grouting, setting grout or resin coating and the like do not need to be coated on the contact surfaces, the good contact state between the adjacent tower sections is ensured by utilizing the good manufacturing precision of the two contact surfaces at the horizontal joint, and the maximum width of the horizontal joint 203 is not more than 2mm after installation; after the prestress is applied in the later period, the horizontal bearing capacity is provided by utilizing the friction force generated on the contact surface by the pressure of the prestressed tendon 4, and the connection can be strengthened by adopting a bolt or a shear key on the contact surface if necessary.
As shown in fig. 4, each second prefabricated tower section 202 is formed by splicing a plurality of arc-shaped prefabricated tower pieces 2021 in an annular direction, and the left and right connection end surfaces, i.e., vertical connection end surfaces, of two adjacent arc-shaped prefabricated tower pieces 2021 do not need to be provided with reserved steel bars or concave-convex key slots, do not need to be provided with bonding materials such as grouting, setting grout or coating resin, and are connected by adopting a dry-type connection structure such as a connection bolt, and the connection bolt is arranged in the mounting holes 2022 at the upper and lower ends of the left connection end surface and the right connection end surface; before on-site hoisting, each arc-shaped prefabricated tower piece 2021 is firstly assembled into a cylinder at an assembling position, then connecting bolts are installed, pretightening force is applied according to design requirements, so that the side surfaces of the adjacent tower pieces 2021 are in a uniformly contacted compaction state, a plurality of tower pieces 2021 are assembled into an integral tower section through the pretightening force of the connecting bolts, then the tower sections are sequentially hoisted to form a concrete tower frame, and vertical splicing seams between the two adjacent tower sections are staggered.
As shown in fig. 5, the arc-shaped prefabricated tower segment 2021 is the smallest constituent unit of the lower concrete tower 2, and its maximum size is determined by production, transportation and hoisting conditions. The arc-shaped prefabricated tower piece 2021 adopts a high-precision horizontal die and a horizontal production process. The high-precision machining end templates are arranged on the periphery of the die, the top blanking pouring process is adopted, the connection end faces of the tower pieces and the surrounding tower pieces or tower sections, namely the upper connection end face, the lower connection end face, the left connection end face and the right connection end face, are planes, the manufacturing precision and the manufacturing quality are good, and the secondary processing of the arc-shaped prefabricated tower piece 2021 end face is not needed to be carried out by using special grinding equipment. The flatness of each connecting end surface is not more than 1 mm. And after the plurality of arc-shaped prefabricated tower pieces 2021 are assembled into the second prefabricated tower section 202, the flatness of the upper surface and the lower surface of the second prefabricated tower section is not more than 3mm, and the deviation of the inner diameter after ring forming is not more than 2mm, so that the requirement of the installation precision of the lower concrete tower frame 2 is met. In addition, the positions, close to the outer side of the tower, on the left and right connecting end faces of each arc-shaped prefabricated tower piece 2021 are provided with grooves for mounting waterproof materials, the four connecting end faces are provided with waterproof sealing strips 2023, and the waterproof requirements of the structural connection parts are met by utilizing the compression of pre-tightening bolts or the compression of the dead weight of tower sections.
As shown in fig. 6, the first prefabricated tower segment 201 is of an integral non-segmented concrete structure, the tower segment is a conversion section, the shape of the top end of the tower segment is matched with the shape of the bottom end of the upper steel tower 3, and a plurality of holes 2011 with the same number as the number of the prestressed tendons 4 are reserved on the wall of the tower segment and are used for penetrating through the prestressed tendons 4; the top end of the steel base plate 206 is provided with a steel base plate 206 with a certain thickness, the structure of the steel base plate 206 is shown in fig. 7, the steel base plate 206 is provided with openings 2061 with the same number and position as the number of the ducts 2011 of the prestressed tendons 4 of the transition section along the thickness, and the lower surface of the steel base plate is welded with studs 2062 to enhance the connection with the concrete. This conversion section is connected with the bottom flange of upper portion steel tower 3 through dry-type connection structure, provides good plane degree through steel backing plate 206, guarantees conversion section and 3 flange joint's of upper portion steel tower effect to the load that comes the flange transmission spreads, guarantees structure atress safety.
The upper steel tower 3 is of a cylindrical or conical structure and is composed of one or more steel tower sections 301 with flanges at two ends. The structure of a single-section steel tower section 301 is shown in FIG. 8, and L-shaped or T-shaped flanges 302 are welded at two ends of the single-section steel tower section; the steel tower sections are connected in sequence through bolts, the bottom T-shaped flange 302 of the steel tower section at the bottommost end is provided with hole channels 3021 with the same number as the prestressed tendons 4, and the prestressed tendons 4 penetrate through the corresponding hole channels 3021 on the flange 302 and are anchored in an anchorage device of the bottom flange 302.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that variations based on the shape and principle of the present invention should be covered within the scope of the present invention.
Claims (10)
1. The utility model provides a wind generating set prefabricated dry-type assembly concrete-steel hybrid tower which characterized in that: the device comprises an upper steel tower frame, a lower concrete tower frame and prestressed tendons; the lower concrete tower frame is formed by sequentially splicing a first prefabricated tower section positioned at the top and a plurality of sections of second prefabricated tower sections positioned below the first prefabricated tower section, two adjacent prefabricated tower sections are connected through a dry-type connecting structure, each section of second prefabricated tower section is formed by splicing a plurality of arc-shaped prefabricated tower pieces along the circumferential direction, two adjacent arc-shaped prefabricated tower pieces are connected through the dry-type connecting structure, the bottom end of the lower concrete tower frame is placed in a reserved mounting groove of a wind generating set foundation and connected through grouting, and the top end of the lower concrete tower frame is connected with the upper steel tower frame; the prestressed tendons are provided with a plurality of bundles which are uniformly distributed along the circumferential direction of the lower concrete tower, each bundle of prestressed tendons is tensioned along the whole body of the lower concrete tower, the top end of each bundle of prestressed tendons is anchored on a bottom flange of the upper steel tower, and the bottom end of each bundle of prestressed tendons is anchored in the basic concrete; the upper steel tower frame and the lower concrete tower frame are connected into a whole through the integral tensioning action of the prestressed tendons.
2. The prefabricated dry-assembled concrete-steel hybrid tower of a wind generating set according to claim 1, wherein: the lower concrete tower is of a cylindrical structure, and the shape of the cylinder is a cone with equal slope, a cone with sectional variable slope or a cylinder.
3. The prefabricated dry-assembled concrete-steel hybrid tower of a wind generating set according to claim 1, wherein: the first prefabricated tower section is of an integral non-laminated concrete structure, a steel base plate is arranged at the top end of the first prefabricated tower section, the shape of the top end of the first prefabricated tower section is matched with that of the bottom end of the upper steel tower frame, the first prefabricated tower section is a conversion section and is connected with the upper steel tower frame through a dry type connecting structure, and a pore channel which is the same as the prestressed tendon cluster is reserved on the wall of the first prefabricated tower section and is used for penetrating through the prestressed tendon.
4. The prefabricated dry-assembled concrete-steel hybrid tower of a wind generating set according to claim 1, wherein: the upper and lower connecting end faces of the arc-shaped prefabricated tower piece are provided with positioning embedded parts and hoisting embedded parts, and vertical splicing seams between two adjacent prefabricated tower sections are staggered.
5. The prefabricated dry-assembled concrete-steel hybrid tower of a wind generating set according to claim 1, wherein: the positions, close to the outer side of the tower, on the left and right connecting end faces of the arc-shaped prefabricated tower piece are provided with grooves for mounting waterproof materials, and the positions of the four connecting end faces are provided with waterproof sealing strips.
6. The prefabricated dry-assembled concrete-steel hybrid tower of a wind generating set according to claim 1, wherein: the planeness of the four connecting end faces of the arc-shaped prefabricated tower pieces does not exceed 1mm, and after the plurality of arc-shaped prefabricated tower pieces are assembled into the second prefabricated tower section, the planeness of the upper surface and the planeness of the lower surface of the second prefabricated tower section are not more than 3mm, and the deviation of the inner diameter of the second prefabricated tower section after ring forming is not more than 2 mm.
7. The prefabricated dry-assembled concrete-steel hybrid tower of a wind generating set according to claim 1, wherein: and the lower concrete tower is provided with a door opening at a designated position.
8. The prefabricated dry-assembled concrete-steel hybrid tower of a wind generating set according to claim 1, wherein: the prestressed tendons are arranged in vivo or in vitro; when the in-vivo arrangement mode is adopted, a prestressed tendon pore channel is reserved in the lower concrete tower barrel wall.
9. A wind turbine prefabricated dry-assembled concrete-steel hybrid tower according to claim 1 or 8, wherein: each prestressed tendon comprises a plurality of steel strands.
10. The prefabricated dry-assembled concrete-steel hybrid tower of a wind generating set according to claim 1, wherein: the upper steel tower frame is of a cylindrical or conical tubular structure and consists of one or more steel tower sections with flanges at two ends; the steel tower sections are sequentially connected through bolts, the bottom flange of the steel tower section at the bottommost end is provided with a hole channel which is the same as the prestressed tendon cluster, and the prestressed tendon penetrates through the corresponding hole channel on the flange and is anchored in an anchorage device of the bottom flange.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011508350.0A CN112483328A (en) | 2020-12-18 | 2020-12-18 | Prefabricated dry-type assembled concrete-steel hybrid tower of wind generating set |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022037219A1 (en) * | 2020-08-21 | 2022-02-24 | 中国电建集团华东勘测设计研究院有限公司 | Grouting-free dry-type prestressed bolt segment-assembled prefabricated concrete tower |
| CN115094942A (en) * | 2022-06-30 | 2022-09-23 | 中国交通建设股份有限公司 | Large-diameter combined cylinder, deep water foundation, wind power foundation and static force sinking construction method |
| WO2023045157A1 (en) * | 2021-09-27 | 2023-03-30 | 北京天杉高科风电科技有限责任公司 | Tower tube section, tower frame, wind turbine generator set, mold, and forming method |
-
2020
- 2020-12-18 CN CN202011508350.0A patent/CN112483328A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022037219A1 (en) * | 2020-08-21 | 2022-02-24 | 中国电建集团华东勘测设计研究院有限公司 | Grouting-free dry-type prestressed bolt segment-assembled prefabricated concrete tower |
| WO2023045157A1 (en) * | 2021-09-27 | 2023-03-30 | 北京天杉高科风电科技有限责任公司 | Tower tube section, tower frame, wind turbine generator set, mold, and forming method |
| CN115094942A (en) * | 2022-06-30 | 2022-09-23 | 中国交通建设股份有限公司 | Large-diameter combined cylinder, deep water foundation, wind power foundation and static force sinking construction method |
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