CN115467362A - Connection structure and construction method of land wind power assembly type foundation prefabricated part - Google Patents
Connection structure and construction method of land wind power assembly type foundation prefabricated part Download PDFInfo
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- CN115467362A CN115467362A CN202211309914.7A CN202211309914A CN115467362A CN 115467362 A CN115467362 A CN 115467362A CN 202211309914 A CN202211309914 A CN 202211309914A CN 115467362 A CN115467362 A CN 115467362A
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- bottom plate
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- 230000002787 reinforcement Effects 0.000 claims description 34
- 210000003205 muscle Anatomy 0.000 claims description 14
- 238000010248 power generation Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 239000011440 grout Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000007569 slipcasting Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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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
- F03D13/22—Foundations specially adapted for wind motors
-
- 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 invention discloses a connection structure and a construction method of a land wind power assembly type foundation prefabricated part, which comprises a prefabricated part, an anchor bolt assembly, an annular stirrup structure and a U-shaped stirrup structure, wherein the anchor bolt assembly is arranged on the prefabricated part; the prefabricated part comprises bottom plate pieces and upright post pieces, a plurality of bottom plate pieces are assembled into an annular bottom plate around the circumferential direction, the upright post pieces are arranged on the bottom plate pieces, a plurality of upright post pieces are assembled into an annular upright post around the circumferential direction, the bottom plate and the upright post are integrally convex annular posts, the annular stirrup structure is hooped on the outer side of the upright post, and the U-shaped stirrup structure can be connected with adjacent assembled bottom plate pieces; the anchor bolt component comprises a lower anchor plate and an upper anchor plate, wherein the lower anchor plate is arranged at the bottom of the bottom plate, and the upper anchor plate is arranged at the top of the stand column. By using the connection structure and the construction method of the prefabricated components of the onshore wind power assembly type foundation, the shear-resistant connection capacity between the prefabricated components in the prefabricated assembly type foundation is enhanced, the maintenance time is shortened, and the field construction period is shortened.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a connection structure of an onshore wind power assembly type foundation prefabricated part and a construction method.
Background
At present, onshore fan foundations mainly use cast-in-place, but cast-in-place formula foundation construction mode has many drawbacks, including maintenance cycle is unfavorable for engineering progress control, winter construction difficulty, foundation bearing capacity requirement is higher, cast-in-place foundation receives the influence of ground quality great, bulk concrete pouring quality is difficult to control scheduling problem, in recent years, domestic related research to prefabricated assembly type onshore fan has gradually appeared, prefabricated assembly type foundation structure has good suitability to the structure of towering, compared with traditional cast-in-place concrete foundation have the construction fast high efficiency, practice thrift the advantage of hoist and mount time, can effectively shorten construction cycle, realize grid-connected power generation in advance. However, the prefabricated foundation is not applied in batch in the field of onshore wind power, and the structural form and the prestressed system of the prefabricated foundation have larger optimization space.
The prefabricated assembly type foundation has a more complicated component connection form in a structural form than a cast-in-place concrete foundation, and requires more excellent support of a component connection technology. The same prefabricated part utilizes different connection forms, and the mechanical property and the shock resistance of the same prefabricated part also become different, so that the connection technology of the prefabricated part is the technical difficulty of the structure application, the field construction difficulty is high, the construction period is long, and the popularization of the assembly type foundation structure is influenced to a certain degree.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a connection structure and a construction method of prefabricated components of an onshore wind power assembly type foundation, which can enhance the shear connection capacity between the prefabricated components in the prefabricated assembly type foundation.
In order to achieve the purpose, the invention is realized by the following technical scheme: a connection structure of a land wind power assembly type foundation prefabricated part comprises a prefabricated part, an anchor bolt assembly, a circumferential stirrup structure and a U-shaped stirrup structure;
the prefabricated part comprises bottom plate pieces and upright post pieces, a plurality of bottom plate pieces are assembled into a ring-shaped bottom plate around the circumferential direction, the upright post pieces are arranged on the bottom plate pieces, a plurality of upright post pieces are assembled into a ring-shaped upright post around the circumferential direction, the bottom plate and the upright post are integrally convex ring-shaped posts, the ring-shaped stirrup structure is hooped outside the upright post, and the U-shaped stirrup structure can be connected with adjacent bottom plate pieces and adjacent upright post pieces after being assembled;
the anchor bolt component comprises a lower anchor plate and an upper anchor plate, wherein the lower anchor plate is arranged at the bottom of the bottom plate, and the upper anchor plate is arranged at the top of the stand column.
Furthermore, the hoop reinforcement structure comprises hoop reinforcements, threaded sleeves and connecting reinforcements, the hoop reinforcements are hooped outside the stand column, the threaded sleeves are embedded in the outer wall of the stand column piece, the connecting reinforcements are in threaded connection with the threaded sleeves, and the hoop reinforcements and the connecting reinforcements are in binding connection
Furthermore, the hoop muscle is the heliciform cuff outside the stand, the screw sleeve sets up along the radial of stand, and is a plurality of the screw sleeve is the heliciform and arranges on a plurality of stand pieces.
Further, U type stirrup structure includes U type muscle and dowel steel, U type muscle is pre-buried in the one side that adjacent bottom plate piece is close to each other, and the U type muscle of adjacent bottom plate piece sets up with crisscross, the dowel steel can pass the U type muscle at adjacent bottom plate piece in proper order.
Furthermore, a prefabricated rib beam is arranged between the bottom plate and the stand column, a grouting pipe is pre-embedded in the bottom plate, the lower anchor plate is pre-embedded in the bottom plate sheet, and the upper anchor plate is connected with the stand column through anchor bolts and grouting materials.
Further, 20 prefabricated parts are assembled into the bottom plate and the upright post around the circumference.
Furthermore, a plurality of shear grooves are formed in one side, close to each other, of the adjacent bottom plate pieces and one side, close to each other, of the adjacent upright post pieces.
A construction method of prefabricated components of an assembled foundation of onshore wind power adopts any one of the connection structures of the prefabricated components of the assembled foundation of onshore wind power, and comprises the following steps:
s1, pre-buried part hoop reinforcement structures and U-shaped hoop reinforcement structures are pre-buried when prefabricated parts are produced, and shear resistant grooves are formed in abutted seams;
s2, assembling the prefabricated parts, fixing adjacent bottom plate pieces through U-shaped stirrup structures after assembling is completed, and grouting the bottom plates;
s3, after the bottom plate grouting is finished, fixing the stand column through a hoop reinforcement structure;
s4, grouting vertical joints between adjacent bottom plate pieces, vertical joints between adjacent upright pieces and inner and outer walls of the upright;
and S5, after the grouting strength reaches a design value, installing the upper anchor plate at the top of the upright post through a bolt, grouting and fixing, and carrying out integral hoisting.
The connecting structure of the prefabricated components of the onshore wind power assembly type foundation and the construction method have the beneficial effects that: connect adjacent prefab through setting up hoop stirrup structure and U type stirrup structure to set up the groove that shears on the prefab, can strengthen the joint capacity that shears between the adjacent prefabricated component in the prefabricated assembled basis, and through this kind of connection structure construction convenience quick, the construction still adopts the wet connection of grout material, has both reduced the site operation degree of difficulty, has still reduced the maintenance time and has shortened site operation cycle, and has improved the wholeness on assembled basis.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
Fig. 1 is a schematic view of a connection structure of an onshore wind power assembly type foundation prefabricated part according to an embodiment of the invention;
FIG. 2 is a top view of a connection structure of an onshore wind power fabricated foundation prefabricated part shown in FIG. 1;
FIG. 3 is a top view of a pillar sheet of a connection structure of an onshore wind power fabricated foundation prefabricated part shown in FIG. 1;
FIG. 4 is a schematic view of a U-shaped stirrup structure of a connection structure of an onshore wind power assembly type foundation prefabricated part shown in FIG. 1;
FIG. 5 is a side view of prefabricated parts of a connection structure of land wind power fabricated foundation prefabricated parts shown in FIG. 1;
reference numerals:
1-assembly foundation;
10-prefabricated parts, 11-bottom plates, 111-bottom plate sheets, 12-columns, 121-column sheets, 13-rib beams, 14-shear grooves and 15-post-pouring belts;
20-a hoop reinforcement structure, 21-a hoop reinforcement, 22-a threaded sleeve, 221-a pre-embedded reinforcement and 23-a connecting reinforcement; 30-U-shaped stirrup structure, 31-U-shaped rib and 32-dowel rib.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1 to 5, the invention provides a connection structure of prefabricated components 10 of an onshore wind power assembly type foundation, which comprises the prefabricated components 10, anchor bolt assemblies, a hoop reinforcement structure 20 and a U-shaped reinforcement structure 30, wherein after a plurality of prefabricated components 10 are assembled into the assembly type foundation 1, the hoop reinforcement structure 20 and the U-shaped reinforcement structure 30 are fastened, so that the shear connection capacity of the assembly type foundation can be enhanced.
Specifically, as shown in fig. 1 and 5, the prefabricated part 10 includes a base plate sheet 111 and a column sheet 121, the column sheet 121 is disposed on the base plate sheet 111, the plurality of base plate sheets 111 are assembled into the annular-shaped base plate 11 around the circumferential direction, and the plurality of column sheets 121 are assembled into the annular-shaped column 12 around the circumferential direction, so as to be integrally assembled into a convex-shaped annular column. The rib 13 is arranged between the bottom plate sheet 111 and the upright post sheet 121, and the bottom plate sheet 111, the upright post sheet 121 and the rib 13 are integrally formed to improve the overall strength. In the present embodiment, the prefabricated parts 10 include 20 bottom plates 111 and 20 column plates 121, which are sequentially assembled around the circumferential direction to form the assembled foundation 1.
As shown in fig. 2, 3 and 5, the hoop reinforcement structure 20 includes a hoop reinforcement 21, a threaded sleeve 22 and a connection reinforcement 23, the hoop reinforcement 21 is hooped outside the column 12, the threaded sleeve 22 is embedded in the column sheet 121 through an embedded reinforcement 221, and the connection reinforcement 23 is in threaded connection with the threaded sleeve 22. In this embodiment, the inner side and the outer side of the column 12 are both provided with the annular rib 21 and the threaded sleeve 22, and the annular rib 21 is spirally hooped on the inner side and the outer side of the column 12 to improve the fixing effect of the assembled column 12. The threaded sleeves 22 are disposed along the radial direction of the column 12, and a plurality of threaded sleeves 22 are arranged on the inner and outer walls of each column piece 121 in a spiral shape around the column 12. The hoop is located same helix at the hoop muscle 21 of stand 12 inside and outside with threaded sleeve 22, and hoop muscle 21 and each threaded sleeve 22 ligature are connected to promote the wholeness and the fixed effect of stand.
As shown in fig. 4, the U-shaped stirrup structure 30 includes U-shaped ribs 31 and dowel bars 32, the adjacent bottom plate pieces 111 are close to each other on one side, that is, the splice joint is embedded with a plurality of U-shaped ribs 31 along the horizontal direction, the U-shaped ribs 31 of two bottom plate pieces 111 are staggered, both ends of the U-shaped ribs 31 are fixed and embedded in the bottom plate pieces 111, the bending end is set towards the other bottom plate piece 111, the U-shaped ribs 31 arranged on two sides in opposite directions are overlapped in half (for convenience of illustration, the left U-shaped ribs are shown in a thickening mode in fig. 4), the dowel bars 32 can sequentially pass through the overlapping parts of the U-shaped ribs 31 on two sides, so as to improve the fixing effect of the assembled bottom plate 11, and further improve the shearing strength. In this embodiment, be equipped with U type muscle not only between the bottom plate piece, the adjacent stand piece is close to one side each other also is equipped with U type muscle for promote the fixed effect after assembling.
Further, as shown in fig. 5, a plurality of shear grooves 14 are further formed on the side surfaces of the bottom plate pieces 111 and the upright piece 121, namely, the side surfaces of the adjacent bottom plate pieces 111 and the side surfaces of the adjacent upright piece 121, which are close to each other, for improving the shear resistance of the connected overall structure.
The construction method of the land wind power assembly type foundation prefabricated part 10 using the connection structure specifically comprises the following steps:
s1, when a prefabricated part 10 is produced, pre-burying U-shaped ribs 31 in a bottom plate piece 111, pre-burying threaded sleeves 22 in an upright post piece 121, and arranging shear grooves 14 at the joints of the prefabricated part 10;
s2, assembling the prefabricated parts 10 into an assembled foundation 1, and grouting the bottom plate 11 after assembling is completed;
s3, after grouting in the bottom plate 11 is completed, hooping the inserted ribs 32 on the U-shaped ribs 31 of the adjacent bottom plate sheets 111, inserting the connecting ribs 23 into the threaded sleeves 22, hooping the annular ribs 21 on the outer side of the upright post 12, and fixing the bottom plate 11 and the upright post 12 through the annular hoop rib structures 20 and the U-shaped hoop rib structures 30 to improve the integrity;
s4, setting a vertical joint grouting template, grouting vertical joints generated by assembling between adjacent bottom plate pieces 111, grouting vertical joints generated by assembling between adjacent upright post pieces 121, and grouting the inner wall and the outer wall of the upright post 12 to form a post-cast strip 15, so that the integrity is further improved;
and S5, after the grouting strength reaches a design value, installing the upper anchor plate at the top of the upright post 12 through a bolt, grouting and fixing, and then hoisting.
Use above-mentioned connection structure of land wind-powered electricity generation assembled basis prefabricated component, through setting up hoop stirrup structure and U type stirrup structural connection adjacent prefab, and set up the groove that shears on the prefab, the connection ability that shears between the prefabricated component in the prefabricated assembled basis has been strengthened, and it is convenient quick through this kind of connection structure construction, the construction still adopts the wet connection of grout material, the site operation degree of difficulty has both been reduced, still reduced the maintenance time and shortened site operation cycle, and the wholeness on assembled basis has been improved.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being covered by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a connection structure of prefabricated component of land wind-powered electricity generation assembled basis which characterized in that: the anchor bolt component comprises a prefabricated component, an anchor bolt component, a hoop stirrup structure and a U-shaped stirrup structure;
the prefabricated part comprises bottom plate pieces and upright post pieces, a plurality of bottom plate pieces are assembled into a ring-shaped bottom plate around the circumferential direction, the upright post pieces are arranged on the bottom plate pieces, a plurality of upright post pieces are assembled into a ring-shaped upright post around the circumferential direction, the bottom plate and the upright post are integrally convex ring-shaped posts, the ring-shaped stirrup structure is hooped outside the upright post, and the U-shaped stirrup structure can be connected with adjacent bottom plate pieces and adjacent upright post pieces after being assembled;
the anchor bolt component comprises a lower anchor plate and an upper anchor plate, wherein the lower anchor plate is arranged at the bottom of the bottom plate, and the upper anchor plate is arranged at the top of the stand column.
2. The connection structure of the assembled foundation prefabricated parts for land wind power generation according to claim 1, wherein: the hoop reinforcement structure comprises hoop reinforcements, a threaded sleeve and connecting reinforcements, the hoop reinforcements are hooped outside the stand column, the threaded sleeve is pre-embedded in the outer wall of the stand column piece, the connecting reinforcements are in threaded connection with the threaded sleeve, and the hoop reinforcements are in binding connection with the connecting reinforcements.
3. The connection structure of the assembled foundation prefabricated parts for land wind power generation according to claim 2, wherein: the hoop muscle is the heliciform cuff in the stand outside, the radial setting of threaded sleeve along the stand, and is a plurality of the threaded sleeve is the heliciform and arranges on a plurality of stand pieces.
4. The connection structure of the assembled foundation prefabricated parts for land wind power generation according to claim 1, wherein: u type stirrup structure includes U type muscle and dowel steel, U type muscle is pre-buried in the one side that adjacent bottom plate piece is close to each other, and the U type muscle of adjacent bottom plate piece sets up with crisscross, the dowel steel can pass the U type muscle at adjacent bottom plate piece in proper order.
5. The connection structure of the assembled foundation prefabricated parts for land wind power generation according to claim 1, wherein: be equipped with prefabricated rib roof beam between bottom plate and the stand, pre-buried slip casting pipe in the bottom plate, anchor plate is pre-buried in the bottom plate piece down, go up anchor plate and stand and pass through crab-bolt and grout material connection.
6. The connection structure of the prefabricated components of the assembled foundation of the onshore wind power generation as claimed in claim 1, characterized in that: the prefabricated parts are 20 in number, and 20 prefabricated parts are assembled into a bottom plate and an upright post around the circumferential direction.
7. The connection structure of the assembled foundation prefabricated parts for land wind power generation according to claim 1, wherein: and a plurality of shear grooves are formed in one side, close to each other, of the adjacent bottom plate pieces and one side, close to each other, of the adjacent upright post pieces.
8. A construction method of a prefabricated component of an onshore wind power assembly type foundation is characterized in that: a connection structure of an onshore wind power fabricated foundation prefabricated part using any one of claims 1 to 7, and comprising the steps of:
s1, pre-embedding a part of hoop reinforcement structure and a U-shaped hoop reinforcement structure when a prefabricated part is produced, and arranging a shear groove at a seam;
s2, assembling the prefabricated parts, fixing adjacent bottom plate pieces through U-shaped stirrup structures after assembling is completed, and grouting the bottom plates;
s3, after the bottom plate grouting is finished, fixing the stand column through a hoop reinforcement structure;
s4, grouting vertical joints between adjacent bottom plate pieces, vertical joints between adjacent upright pieces and inner and outer walls of the upright;
and S5, after the grouting strength reaches a design value, installing the upper anchor plate at the top of the upright post through a bolt, grouting and fixing, and carrying out integral hoisting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211309914.7A CN115467362A (en) | 2022-10-25 | 2022-10-25 | Connection structure and construction method of land wind power assembly type foundation prefabricated part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211309914.7A CN115467362A (en) | 2022-10-25 | 2022-10-25 | Connection structure and construction method of land wind power assembly type foundation prefabricated part |
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| CN115467362A true CN115467362A (en) | 2022-12-13 |
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| CN202211309914.7A Pending CN115467362A (en) | 2022-10-25 | 2022-10-25 | Connection structure and construction method of land wind power assembly type foundation prefabricated part |
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| US20140033628A1 (en) * | 2012-08-03 | 2014-02-06 | James D. Lockwood | Precast concrete post tensioned segmented wind turbine tower |
| JP2016217016A (en) * | 2015-05-21 | 2016-12-22 | 株式会社奥村組 | Structure and method for reinforcing existing column |
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| CN210238490U (en) * | 2019-06-27 | 2020-04-03 | 中交水利水电建设有限公司 | Positioning device for spiral stirrup of cast-in-situ bored pile |
| CN214833470U (en) * | 2021-06-22 | 2021-11-23 | 中建八局西北建设有限公司 | Connecting structure of concrete filled steel tubular column and raft foundation |
| CN114108685A (en) * | 2021-12-30 | 2022-03-01 | 中国船舶重工集团海装风电股份有限公司 | Annular prefabricated assembly beam plate type fan foundation and installation method |
-
2022
- 2022-10-25 CN CN202211309914.7A patent/CN115467362A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201933825U (en) * | 2011-02-24 | 2011-08-17 | 辽宁大金重工股份有限公司 | High-power prestressed five-piece type concrete tower |
| US20140033628A1 (en) * | 2012-08-03 | 2014-02-06 | James D. Lockwood | Precast concrete post tensioned segmented wind turbine tower |
| JP2016217016A (en) * | 2015-05-21 | 2016-12-22 | 株式会社奥村組 | Structure and method for reinforcing existing column |
| CN109281332A (en) * | 2018-11-06 | 2019-01-29 | 重庆大学 | A kind of wind-power tower foundation ring rib beam type basis based on composite structure |
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| CN214833470U (en) * | 2021-06-22 | 2021-11-23 | 中建八局西北建设有限公司 | Connecting structure of concrete filled steel tubular column and raft foundation |
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