CN105971827B - The conversion ring beam and its construction method of pylon are combined with steel cylinder for concrete tube - Google Patents
The conversion ring beam and its construction method of pylon are combined with steel cylinder for concrete tube Download PDFInfo
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- CN105971827B CN105971827B CN201610490347.8A CN201610490347A CN105971827B CN 105971827 B CN105971827 B CN 105971827B CN 201610490347 A CN201610490347 A CN 201610490347A CN 105971827 B CN105971827 B CN 105971827B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2230/00—Manufacture
- F05B2230/20—Manufacture essentially without removing material
- F05B2230/23—Manufacture essentially without removing material by permanently joining parts together
- F05B2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
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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
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Abstract
A kind of conversion ring beam and its construction method for combining pylon with steel cylinder for concrete tube, it converts ring beam to be set between concrete tower and steel tower tube, be enclosed by horizontally disposed circular ring shape bottom plate, the ring beam web being fixed on circular ring shape bottom plate and the flange being covered at the top of ring beam web；Circular ring shape bottom plate is the bottom wing listrium of annular box beam, and flange is top flange plate；Ring beam web is welded on circular ring shape bottom plate；The upper surface of flange is fixed with steel tower tube, and the position that lower surface corresponds to two ring beam webs convexes to form tang respectively, and the top of the tang and ring beam web is correspondingly connected with；Corresponding respectively on circular ring shape bottom plate and flange to be provided with prestressing tendon preformed hole, prestressing with bond beam is fixed after passing through concrete tower and conversion ring beam from bottom to top with prestressed anchor.The present invention can reduce the additional prestressed pressure in tower concrete section, reduce concrete tower section thickness, and the lifting for reducing precast concrete tower while reducing concrete material dosage is difficult to install.
Description
Technical field
The present invention relates to power generation tower construction field more particularly to a kind of combine pylon with steel cylinder for concrete tube
Convert ring beam and its construction method.
Background technology
Prestressed concrete tower cylinder and steel cylinder switch site, stress are complicated.Due to steel cylinder section thickness very little, and prestressing force
Concrete tube section thickness is larger, and the two binding site concrete bears concentration of local load clearly, therefore existing method
It is setting steel transition pad, gradually disperses the concentration pressure that steel cylinder is transmitted to concrete section.But the peptizaiton of billet compared with
Difference still will appear apparent stress raisers, and billet work progress is complicated, site operation in concrete atop a tower
Quality is difficult to ensure that.
It sets in the construction that billet is converted, steel tower segment bottom flange can part in pylon primary moment effect lower flange tensile region
It is detached from billet and generates warpage, in order to reduce warpage, need the prestressing force that additionally application is very big that flange is tightly pressed against transition steel
On backing plate, this prestressing force additionally applied can increase considerably the compression design value of concrete section, force concrete tower
Section thickness increases, and increases concrete works amount.
Invention content
The object of the present invention is to provide a kind of conversion ring beams and its construction party for combining pylon with steel cylinder for concrete tube
Method, purpose one are to improve the Uniformity of Stress of concrete atop a tower, in the transition billet construction used at present, by
It causes billet thickness relatively small in the restriction of cost factor, extremely has to the peptizaiton of the local pressure on the flange of steel cylinder bottom
Limit.
The purpose of the present invention two is to reduce to overcome flange in the additional pre- of pylon primary moment tensile region Local warping
Stress, and then reduce the additional prestressed pressure in tower concrete section, reduce concrete tower section thickness, reduce coagulation
The lifting for reducing precast concrete tower while soil material dosage is difficult to install.
The purpose of the present invention three is to simplify prestressed concrete tower cylinder to the construction technology of the crossover position of steel tower tube, existing
The transition billet for having construction needs to be attached by post-grouting layer and lower part concrete, since concrete top has a large amount of resist
The stiffener net of local pressure causes the installation of transition billet in place very difficult, and precision in place is poor, in existing engineering
There are problems that gap can not be closed between middle generation flange and transition billet, seriously affect the stress safety of flange.
The present invention specifically adopts the following technical scheme that：
A kind of conversion ring beam for combining pylon with steel cylinder for concrete tube, between concrete tower and steel tower tube,
It is characterized in that：For annular box beam, by horizontally disposed circular ring shape bottom plate, the ring beam web being fixed on circular ring shape bottom plate and
The flange at the top of ring beam web is covered in enclose；Bottom wing listrium of the circular ring shape bottom plate for annular box beam, the flange
Top flange plate for annular box beam；The ring beam web includes inside and outside two circles, is respectively welded at the interior edge of circular ring shape bottom plate and outer
Edge；The upper surface of the flange is fixed with steel tower tube, and the position that lower surface corresponds to two ring beam webs convexes to form tang respectively,
The top of the tang and ring beam web is correspondingly connected with；The internal face of the tang and ring beam web is located on the same line；
The outside wall surface of the tang, ring beam web and concrete tower is located on the same line；On the circular ring shape bottom plate and flange
It corresponds to respectively and is provided with prestressing tendon preformed hole, prestressing with bond beam is used in advance after passing through concrete tower and conversion ring beam from bottom to top
Stress anchorage is fixed.
It is further preferred that fill concrete inside the conversion ring beam；On the circular ring shape bottom plate and flange it is pre- should
Round steel pipe is equipped between power beam preformed hole, prestressing with bond beam is from bottom to top from concrete tower entry round steel pipe, across conversion
It is fixed after ring beam with prestressed anchor.
Further, the round steel pipe is divided into two sections, and epimere is top round steel pipe, and top is welded on flange bottom
Prestressing tendon preformed hole around；Hypomere is lower part round steel pipe, and bottom end is welded on the prestressing tendon of circular ring shape plate upper surface
Around preformed hole；The bottom end of the top round steel pipe and lower part round steel pipe intersect, the mutual intussusception of intersection.
Further, the concrete is C60 self-compaction slightly expanded concretes；Reinforcing bar is configured in the concrete；Institute
It states circular ring shape bottom plate and ring beam web and is equipped with peg in the side of contact concrete.
Further, up-narrow and down-wide, lower end width and concrete tower top is in the vertical profile section for converting ring beam
Width is adapted.
Further, the circular ring shape bottom plate and ring beam web are steel plates, and the ring beam web is close to prestressing with bond
The side of beam is equipped with stiffener.
It is further preferred that fill concrete inside the conversion ring beam；The prestressing tendon preformed hole week of the flange bottom
It encloses equipped with vertical round steel pipe, prestressing with bond beam is from bottom to top from concrete tower entry round steel pipe, across after conversion ring beam
It is fixed with prestressed anchor, the bottom end of the round steel pipe is concordant with the bottom end of ring beam web.
The above-mentioned construction method for converting ring beam for combine pylon with steel cylinder for concrete tube described in any one, spy
Sign is, includes the following steps：
Step 1: prepare before construction：Required component is produced according to design requirement in factory, is carried construction location is prefabricated
The concrete tower of prestressing with bond beam；
Step 2: welding conversion ring beam：First by welding of peg on ring beam web madial wall, after by ring beam web and method
The tang of blue bottom is welded to connect, and is welded top round steel pipe at the prestressing tendon preformed hole position of flange, is welded in ring beam web
Connect reinforcing bar, the prestressing tendon preformed hole position position of circular ring shape bottom plate weld lower part round steel pipe, then by circular ring shape bottom plate with
Ring beam web is welded to connect, top round steel pipe and the mutual intussusception of lower part round steel pipe, and so far, conversion ring beam welding is completed；
Step 3: lifting conversion ring beam：High-strength clay is smeared in concrete tower top surface, then lifts conversion ring beam just
Position, wherein prestressing with bond beam pass through top round steel pipe and lower part round steel pipe；
Step 4: fill concrete：The fill concrete inside conversion ring beam；
Step 5：Weld steel tower tube：Conversion ring beam is connect with top steel tower tube by flange welding；
Step 6：Tensioning prestressing with bond beam：Pass through prestressed anchor tensioning prestressing with bond beam, so far, concrete tube
The conversion ring beam construction that pylon is combined with steel cylinder is completed.
It is further preferred that the sequence of construction of the step 4 and step 5 is exchanged, it first will conversion ring beam and top head tower
Cylinder is connected by flange welding, then lifting conversion ring beam.
Compared with prior art the invention has the characteristics that and advantageous effect：
1st, the local pressure of the flange position at steel tower tube bottom conducts dispersion in conversion ring beam first, since conversion ring beam is high
For degree much larger than transition billet thickness, therefore after conversion ring beam diffusion, concrete tower top surface Uniformity of Stress is bright
It is aobvious to improve.
2nd, pulling force of the steel tower tube under primary moment effect is gradually transferred to prestressing tendon in conversion beam altitude range.Simultaneously
Since conversion ring beam stiffness by itself is far longer than flange, buckling deformation of the flange under the effect of tower primary moment obtains effectively
Constraint, is accordingly used in overcoming the additional prestressing force of this buckling deformation significantly to reduce.
3rd, flange becomes a part for conversion ring beam, and directly prefabricated in factory, machining accuracy is guaranteed, and scene only needs
Can be in place by dress ring change beam installation by horizontal splicing seams way, difficulty of construction significantly reduces；
4th, lower part concrete tower section thickness can be reduced, while reduce prestressing tendon cross-sectional sizes, hence it is evident that save coagulation
Soil material and prestressing steel dosage save overall cost.
Description of the drawings
Fig. 1 is a kind of structural representation for the conversion ring beam embodiment one for combining pylon with steel cylinder for concrete tube of the present invention
Figure.
Reference numeral：1- concrete towers；2- steel tower tubes；3- prestressing with bond beams；4- circular ring shape bottom plates；5- flanges；6-
Tang；7- concrete；8- tops round steel pipe；9- lower parts round steel pipe；10- prestressed anchors；11- ring beam webs.
Specific embodiment
Technological means, character of innovation, reached purpose and effect to realize the present invention are easy to understand, with reference to
The present invention is further described for attached drawing.
Specific specific embodiment of the embodiment recorded herein for the present invention, for illustrating the design of the present invention,
It is explanatory and illustrative, should not be construed as the limitation to embodiment of the present invention and the scope of the invention.Except what is recorded herein
Outside embodiment, those skilled in the art also be able to based on the application claims and specification disclosure of that using aobvious and
The other technical solutions being clear to, these technical solutions include any obvious using making for the embodiment to recording herein
The technical solution of substitutions and modifications.
1）Using the flange 5 at 2 bottom of steel tower tube as the top flange of conversion ring beam, in the 5 bottom surface both sides of flange at 2 bottom of steel tower tube point
Not She Zhi two boss 6 being welded to connect with ring beam web 11,6 thickness of boss and 11 uniform thickness of ring beam web, 6 lateral surface of boss and
Flange 5 angle in steel tower segment bottom is equal to 5 angle of flange at web 11 and steel tower segment bottom, ensures that flange 5 is put down to 11 power transmission of ring beam web
It is suitable.Prestressing tendon 3 opens prestressing tendon preformed hole to the flange 5 of 2 bottom of steel tower tube across position in vivo, and prestressing tendon preformed hole is straight
Diameter is more than the outer diameter of prestressing with bond beam 3, and prestressing tendon preformed hole center is overlapped with 3 center of prestressing with bond beam.
2）Circular ring shape bottom plate 4 and the top surface of concrete tower 1 are wide；
3）11 steel plate top edge of ring beam web and the 5 both sides boss 6 of flange at 2 bottom of steel tower tube are welded to connect, welding use pair
Connect melt-through weld；11 steel plate lower edge of ring beam web is welded with 4 both sides of the edge of circular ring shape bottom plate, and welding is using groove penetration weld
Seam, two coxostermum of conversion ring beam, 11 steel plate thickness are not less than 0.2 times of 2 bottom column barrel steel plate thickness of steel tower tube；
4）It is entire to convert ring depth of beam from 4 bottom surface of circular ring shape bottom plate to the height of 5 top edge of flange not less than 200mm
So that pressure uniform conductive to 1 top surface of concrete tower on steel tower segment bottom flange 5 is advisable；
5）On circular ring shape bottom plate 4, prestressing tendon 3 opens prestressing tendon preformed hole across position in vivo, and prestressing tendon is pre-
Diameter of boxing out is more than 3 outer diameter of prestressing with bond beam, and prestressing tendon preformed hole center is overlapped with 3 center of prestressing with bond beam.
6）The prestressing tendon that internal prestressing tendon 3 passes through on 5 bottom surface of flange at 2 bottom of steel tower tube is reserved in the welding of hole site
Portion's round steel pipe 8, round steel pipe 8 axis in top is coaxial with the prestressing with bond beam 3 across this position, and round steel pipe 8 internal diameter in top is more than
The outer diameter of prestressing with bond beam 3.
7）The prestressing tendon that internal prestressing tendon 3 passes through on circular ring shape bottom plate 4 reserves hole site welding lower part round steel pipe 9,
Round steel pipe 9 axis in lower part is coaxial with the prestressing with bond beam 3 across this position, and round steel pipe 9 internal diameter in lower part is more than prestressing with bond
3 outer diameter of beam.
9）Top pipe diameter can be used in the mutual intussusception of intersection location, intussusception with lower part round steel pipe 9 in top round steel pipe 8
More than lower part outer diameter of steel pipes, lower part steel pipe is inserted in upper steel pipe；Top pipe diameter can also be used less than outside the steel pipe of lower part
Diameter enters top steel pipe socket in the steel pipe of lower part.
10）Convert ring beam in can concrete perfusion 7 to increase rigidity, can not be welded if not concrete perfusion 7 top circle
Steel pipe 8 and lower part round steel pipe 9.
11）It is bonded to increase conversion ring beam inner concrete 7 with two coxostermum of conversion ring beam, 11 steel plate, it can be in conversion ring beam two
11 steel plate of coxostermum contacts side and conversion ring beam bottom plate with conversion ring beam inner concrete 7 and is connect with conversion ring beam inner concrete 7
It touches side and peg is set by code requirement.
12）To increase the local anti-pressure ability of conversion ring beam inner concrete 7, can be configured in conversion ring beam inner concrete 7
Reinforcing bar.
13）To increase the perfusion convenience of conversion ring beam inner concrete 7, the bottom plate of conversion ring beam and lower part circle can be cancelled
Top round steel pipe 8 is directly extended to conversion ring beam bottom by steel, concrete seven is directly perfused to original conversion ring beam bottom plate bottom surface
Position.
14）It, can be in conversion ring to increase the anti-buckling stability energy of 11 steel plate of conversion ring beam beam web under pressure
Setting stiffener on the inside of 11 steel plate of beam beam web.
The present invention provides a kind of conversion ring beam specific embodiment for combining pylon with steel cylinder for concrete tube, such as Fig. 1
Shown, the present embodiment converts ring beam by horizontally disposed circular ring shape bottom plate 4, the ring beam web 11 being fixed on circular ring shape bottom plate 4
And the flange 5 being covered at the top of ring beam web 11 encloses, interior concrete perfusion 7 welds top to increase rigidity
Round steel pipe 8 and lower part round steel pipe 9.
The present invention also provides a kind of construction method of conversion ring beam for combining pylon with steel cylinder for concrete tube, features
It is, includes the following steps：
Step 1: prepare before construction：Required component is produced according to design requirement in factory, is carried construction location is prefabricated
The concrete tower 1 of prestressing with bond beam 3；
Step 2: welding conversion ring beam：First by welding of peg on 11 madial wall of ring beam web, after by ring beam web 11
It is welded to connect with the tang 6 of 5 bottom of flange, top round steel pipe 8 is welded at the prestressing tendon preformed hole position of flange 5, in ring beam
Welded reinforcement in web 11 welds lower part round steel pipe 9 at the prestressing tendon preformed hole position position of circular ring shape bottom plate 4, then will
Circular ring shape bottom plate 4 is welded to connect with ring beam web 11,9 mutual intussusception of top round steel pipe 8 and lower part round steel pipe, so far, converts ring
Beam welding is completed；
Step 3: fill concrete 7：The fill concrete 7 inside conversion ring beam；
Step 4: lifting conversion ring beam：High-strength clay is smeared in 1 top surface of concrete tower, it then will conversion ring beam lifting
In place, wherein prestressing with bond beam 3 passes through top round steel pipe 8 and lower part round steel pipe 9, can also first lift conversion ring beam, then
High-strength grout is perfused in horizontal joint between 1 top surface of conversion ring beam and concrete tower；
Step 5：Weld steel tower tube 2：Conversion ring beam is welded to connect with top steel tower tube 2 by flange 5, this step can
To be exchanged with step 4；
Step 6：Tensioning prestressing with bond beam 3：Pass through 10 tensioning prestressing with bond beam 3 of prestressed anchor, so far, coagulation
The conversion ring beam construction that native cylinder combines pylon with steel cylinder is completed.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of conversion ring beam for combining pylon with steel cylinder for concrete tube, set on concrete tower（1）With steel tower tube（2）It
Between, it is characterised in that：The conversion ring beam is annular box beam, by horizontally disposed circular ring shape bottom plate（4）, be fixed on circular ring shape bottom
Plate（4）On ring beam web（11）And it is covered in ring beam web（11）The flange at top（5）It encloses；The circular ring shape bottom
Plate（4）For the bottom wing listrium of annular box beam, the flange（5）Top flange plate for annular box beam；The ring beam web（11）Packet
Inside and outside two circle is included, is respectively welded at circular ring shape bottom plate（4）Interior edge and outer；The flange（5）Upper surface and steel tower tube（2）
Fixed, lower surface corresponds to two ring beam webs（11）Position convex to form tang respectively（6）, the tang（6）With ring beam abdomen
Plate（11）Top be correspondingly connected with；The tang（6）With ring beam web（11）Internal face be located on the same line；It is described convex
Mouthful（6）, ring beam web（11）With concrete tower（1）Outside wall surface be located on the same line；The circular ring shape bottom plate（4）With
Flange（5）Upper correspondence respectively is provided with prestressing tendon preformed hole, prestressing with bond beam（3）Concrete tower is passed through from bottom to top（1）
Prestressed anchor is used with after conversion ring beam（10）It is fixed.
2. a kind of conversion ring beam for combining pylon with steel cylinder for concrete tube as described in claim 1, it is characterised in that：Institute
State fill concrete inside conversion ring beam（7）；The circular ring shape bottom plate（4）And flange（5）On prestressing tendon preformed hole between
Equipped with round steel pipe, prestressing with bond beam（3）From bottom to top from concrete tower（1）Into round steel pipe, used across after converting ring beam
Prestressed anchor（10）It is fixed.
3. a kind of conversion ring beam for combining pylon with steel cylinder for concrete tube as claimed in claim 2, it is characterised in that：Institute
It states round steel pipe and is divided into two sections, epimere is top round steel pipe（8）, top is welded on flange（5）The prestressing tendon of bottom surface is pre-
Around boxing out；Hypomere is lower part round steel pipe（9）, bottom end is welded on circular ring shape bottom plate（4）The prestressing tendon preformed hole of upper surface
Around；The top round steel pipe（8）Bottom end and lower part round steel pipe（9）It is intersecting, the mutual intussusception of intersection.
4. a kind of conversion ring beam for combining pylon with steel cylinder for concrete tube as claimed in claim 2, it is characterised in that：Institute
State concrete（7）It is C60 self-compaction slightly expanded concretes；The concrete（7）Inside it is configured with reinforcing bar；The circular ring shape bottom plate
（4）With ring beam web（11）In contact concrete（7）Side be equipped with peg.
5. a kind of conversion ring beam for combining pylon with steel cylinder for concrete tube as described in claim 1, it is characterised in that：Institute
The vertical profile section for converting ring beam is stated as up-narrow and down-wide, lower end width and concrete tower（1）The width on top is adapted.
6. a kind of conversion ring beam for combining pylon with steel cylinder for concrete tube as described in claim 1, it is characterised in that：Institute
State circular ring shape bottom plate（4）With ring beam web（11）It is steel plate, the ring beam web（11）Close to prestressing with bond beam（3）One
Side is equipped with stiffener.
7. a kind of conversion ring beam for combining pylon with steel cylinder for concrete tube as claimed in claim 6, it is characterised in that：Institute
State fill concrete inside conversion ring beam（7）；The flange（5）Vertical round steel is equipped with around the prestressing tendon preformed hole of bottom surface
Pipe, prestressing with bond beam（3）From bottom to top from concrete tower（1）Into round steel pipe, prestressed anchor is used across after converting ring beam
Tool（10）It is fixed, the bottom end of the round steel pipe and ring beam web（11）Bottom end it is concordant.
8. such as the construction party of converting ring beam that for concrete tube with steel cylinder combines pylon of the claim 1 ~ 7 as described in any one
Method, which is characterized in that include the following steps：
Step 1: prepare before construction：Required component is produced according to design requirement in factory, in construction location precast concrete tower
Cylinder（1）, with prestressing with bond beam（3）'s；
Step 2: welding conversion ring beam：First by welding of peg in ring beam web（11）On madial wall, after by ring beam web（11）
With flange（5）The tang of bottom（6）It is welded to connect, in flange（5）Prestressing tendon preformed hole position welding top round steel pipe
（8）, in ring beam web（11）Interior welded reinforcement, in circular ring shape bottom plate（4）Prestressing tendon preformed hole position position welding lower part
Round steel pipe（9）, then by circular ring shape bottom plate（4）With ring beam web（11）It is welded to connect, top round steel pipe（8）With lower part round steel pipe
（9）Mutual intussusception, so far, conversion ring beam welding are completed；
Step 3: fill concrete（7）：The fill concrete inside conversion ring beam（7）；
Step 4: lifting conversion ring beam：In concrete tower（1）High-strength clay is smeared in top surface, then lifts conversion ring beam just
Position, wherein prestressing with bond beam（3）Across top round steel pipe（8）With lower part round steel pipe（9）；
Step 5：Weld steel tower tube（2）：It will conversion ring beam and top steel tower tube（2）Pass through flange（5）It is welded to connect；
Step 6：Tensioning prestressing with bond beam（3）：Pass through prestressed anchor（10）Tensioning prestressing with bond beam（3）, so far, mix
The conversion ring beam construction that solidifying soil cylinder combines pylon with steel cylinder is completed.
9. combine the construction method of the conversion ring beam of pylon, feature with steel cylinder for concrete tube as claimed in claim 8
It is, the sequence of construction of the step 4 and step 5 is exchanged, first will conversion ring beam and top steel tower tube（2）Pass through flange
（5）It is welded to connect, then lifting conversion ring beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610490347.8A CN105971827B (en) | 2016-06-29 | 2016-06-29 | The conversion ring beam and its construction method of pylon are combined with steel cylinder for concrete tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610490347.8A CN105971827B (en) | 2016-06-29 | 2016-06-29 | The conversion ring beam and its construction method of pylon are combined with steel cylinder for concrete tube |
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| CN106321367B (en) * | 2016-10-20 | 2018-11-13 | 同济大学 | Oblique pull prestress steel and the box-like blower fan pylon of coagulation local soil type |
| CN106837706B (en) * | 2017-01-06 | 2023-11-03 | 瑞麦（宁波）机械设计制造有限公司 | Wind driven generator blade mounting device |
| CN106979131A (en) * | 2017-05-04 | 2017-07-25 | 青岛中天斯壮科技有限公司 | It is a kind of wind power generation stepped |
| US10823150B2 (en) | 2017-03-03 | 2020-11-03 | Qindao Hua-Strong Energy Technology Co., Ltd. | Connecting structure for steel tube truss and tower barrel of lattice wind power generation tower, prestressed polygon wind tower provided with circular box girder for direct fan on top of tower, wind power generation tower, and wind tower having prestressed anti-fatigue structure |
| CN107859600A (en) * | 2017-10-30 | 2018-03-30 | 北京万源工业有限公司 | One kind mixing tower attachment structure |
| NL2021462B1 (en) | 2018-08-13 | 2020-02-24 | Siemens Gamesa Renewable Energy B V | Assembly comprising a first and a second member and a connector, and a method of assembling such an assembly |
| CN111287905B (en) * | 2018-12-06 | 2024-04-19 | 上海风领新能源有限公司 | Tower drum |
| CN112112767A (en) * | 2020-09-15 | 2020-12-22 | 重庆大学 | Combined structure switching structure for wind turbine generator system steel-concrete tower cylinder |
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| DE102011001250A1 (en) * | 2011-03-14 | 2012-09-20 | Strabag Offshore Wind Gmbh | Apparatus and method for the transition between a steel tower section and a prestressed concrete tower section |
| CN104005919B (en) * | 2014-06-13 | 2015-02-25 | 湖南大学 | Anchored ribbed type connecting device for prestressed concrete and steel tower section of wind power combined tower |
| CN103994034B (en) * | 2014-06-13 | 2015-04-15 | 湖南大学 | Connection device of prestress concrete and steel combination wind power generation tower |
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