CN106762441A - Transition connecting piece and wind power tower - Google Patents
Transition connecting piece and wind power tower Download PDFInfo
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- CN106762441A CN106762441A CN201611145806.5A CN201611145806A CN106762441A CN 106762441 A CN106762441 A CN 106762441A CN 201611145806 A CN201611145806 A CN 201611145806A CN 106762441 A CN106762441 A CN 106762441A
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- transition piece
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- 230000007704 transition Effects 0.000 title claims abstract description 63
- 239000002184 metal Substances 0.000 claims description 31
- 229910052751 metal Inorganic materials 0.000 claims description 31
- 238000005266 casting Methods 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 230000015271 coagulation Effects 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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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
-
- 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
The invention belongs to the technical field of wind power towers, and provides a transition connecting piece and a wind power tower, wherein a circular truncated cone-shaped cylinder body of the transition connecting piece is formed by detachably splicing a plurality of conical arc plates which are distributed around the axis of the cylinder body and have the same height; the outer diameters of the upper end and the lower end of the cylinder body are different, so that transitional connection of tower cylinder sections with different outer diameters can be realized, a large number of straight-cylinder-shaped tower cylinder sections can be used for replacing conical tower cylinder sections during tower frame construction, and the casting difficulty and the mold cost of the tower cylinder sections are greatly reduced; two adjacent straight cylinder sections with different outer diameters of the wind power tower are connected through the transition connecting piece, and due to the transition connecting piece, a large number of straight cylinder-shaped tower cylinder sections can be used for replacing conical tower cylinder sections, the straight cylinder sections are simple in structure, the casting process requirement is low, and the casting difficulty of the tower cylinder sections is reduced; the straight cylinder section has lower requirements on the die, and the die has low manufacturing cost; the straight cylinder sections with the same outer diameter can be cast in batches by one set of die, so that the number of the dies is greatly reduced, and the cost of the dies is further reduced.
Description
Technical field
The present invention relates to wind power tower technical field, more particularly to a kind of transition piece, wind power tower.
Background technology
For wind-power generating unit tower, when hub centre exceedes a certain height, concrete tower is than steel pylon more
With advantage.And the development trend that high tower is current wind-powered electricity generation industry is pursued, hub centre higher means generating higher
Amount income.
Due to the cost advantage in terms of high tower, at present in the world, concrete tower is widely applied.
Generally using the construction technology that segmentation is prefabricated, current most of concrete towers are full cone external form to concrete tower, and external form is bored entirely
Tower segments to mould requirement higher, mould high processing costs, tower segments casting it is more difficult, due to each section of tower segments size not
It is identical, it is necessary to for each tower segments sets mould, die cost is high, and interchangeability is poor, is more expensive to manufacture.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention is：For the tower segments casting for solving full cone concrete tower is difficult, mould
The problem of high cost.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides a kind of transition piece, including round table-like cylinder, it is described
Cylinder is distributed by multiple around the axis of the cylinder, height identical taper arc plate is spliced, the adjacent taper arc plate
It is detachably connected；The upper and lower side of the taper arc plate is equipped with the arc flange section with connecting hole.
Wherein, connecting plate is equipped with the left and right sides of the taper arc plate, the connecting plate is provided with connecting hole, adjacent
The connecting plate of the taper arc plate is mutually close to and the bolt by being located in the connecting hole is connected with each other.
Wherein, the two ends of the connecting plate respectively with the taper arc plate upper and lower ends at two arc flange sections
Connection.
Wherein, the connecting plate extends along the generatrix direction of the cylinder.
Wherein, the connecting plate, arc flange section are both connected to the inner side of the taper arc plate.
Wherein, the taper arc plate, between arc flange section, connecting plate by being welded to connect or be integrally cast.
Wherein, the cylinder is made of metal.
The present invention also disclosed a kind of wind power tower, including basis and multiple direct tube sections, described basic with the direct tube section
Between, and/or the different direct tube section of two neighboring external diameter between connected by transition piece as described above.
Wherein, in multiple direct tube sections, including by the concrete concrete direct tube section being made and it is made of metal
Metal direct tube section；The vertical passage for extending along its length is provided with the concrete direct tube section；The two of institute's metal direct tube section
End is flange face.
Wherein, it is described it is basic be connected with the concrete direct tube section, it is described basis in be fixedly connected with prestressed cable, it is described
Prestressed cable through after the vertical passage in the concrete direct tube section and the transition piece or next direct tube section
Junction fastened.
(3) beneficial effect
Above-mentioned technical proposal has the following advantages that：The present invention provide a kind of transition piece, its round table-like cylinder by
Multiple axis around the cylinder are distributed, height identical taper arc plate is detachably spliced, the upper and lower side of taper arc plate
The arc flange section with connecting hole is equipped with to form complete flange after splicing；The upper and lower side external diameter of cylinder is different,
The transition connection of the tower segments different to external diameter can be realized, pylon is built can replace taper with the tower segments of a large amount of straight-tube shapes
Tower segments, substantially reduce tower segments casting difficulty and die cost；The present invention provide wind power tower, its basis with direct tube section it
Between, and/or the different direct tube section of two neighboring external diameter between connected by foregoing transition connector, due to depositing for transition piece
Taper tower segments can replaced wind power tower, direct tube section simple structure, casting technique is built with the tower segments of a large amount of straight-tube shapes
It is required that it is low, reduce the casting difficulty of tower segments；Requirement of the direct tube section to mould is relatively low, and die manufacturing cost is low；External diameter is identical
Direct tube section can with one set of die batch cast, number of molds is greatly reduced, reduce further die cost.
Brief description of the drawings
Fig. 1 is the structural representation of transition piece of the present invention；
Fig. 2 is the structural representation of taper arc plate of the present invention；
Fig. 3 is the connection status half-section diagram of transition piece of the present invention and direct tube section；
Fig. 4 is the close-up schematic view at A in Fig. 3；
Fig. 5 is the close-up schematic view at B in Fig. 3；
Fig. 6 is the connection diagram of direct tube section of the present invention and basis；
Fig. 7 is the structural representation of wind power tower of the present invention.
Wherein, 1, basis；21st, concrete direct tube section；22nd, metal direct tube section；3rd, transition piece；31st, taper arc plate；
311st, arc flange section；312nd, connecting hole；313rd, connecting plate；314th, connecting hole；4th, prestressed cable；5th, bolt.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the invention is described in further detail.Hereinafter implement
Example is not limited to the scope of the present invention for illustrating the present invention.
In the description of the invention, it is necessary to explanation, unless otherwise indicated, " more than " scope include this number, it is " many
It is individual " it is meant that two or more；Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ",
The orientation or position relationship of instructions such as " afterbodys " are, based on orientation shown in the drawings or position relationship, to be for only for ease of description originally
Invention and simplified description, must be with specific orientation, with specific square rather than instruction or the signified device of hint or element
Position construction and operation, therefore be not considered as limiting the invention.Additionally, term " first ", " second ", " the 3rd " etc. are only used
In description purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " installation ",
" connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or integratedly connect
Connect；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary.It is right
For one of ordinary skill in the art, visual concrete condition understands above-mentioned term concrete meaning in the present invention.
Embodiment one：
As depicted in figs. 1 and 2, a kind of transition piece 3, including round table-like cylinder, the cylinder are present embodiments provided
Body is distributed by multiple around the axis of the cylinder, height identical taper arc plate 31 is spliced, the adjacent taper arc plate
31 are detachably connected；The upper and lower side of the taper arc plate 31 is equipped with the arc flange section 311 with connecting hole 312.Cylinder by
Multiple height identical taper arc plates 31 are spliced, and the round table-like cylinder that top surface is parallel to each other with bottom surface is formed after splicing,
Arc flange section 311 is spliced into complete closed loop flange respectively in the upper and lower side of cylinder；Round table-like cylinder described in the present embodiment,
Upper and lower side external diameter is different, it is possible to achieve the transition connection of the tower segments different to external diameter, pylon is built can use a large amount of straight-tube shapes
Tower segments replace taper tower segments, substantially reduce tower segments casting difficulty and die cost；Cylinder is by multiple taper arc plates 31
Detachably it is spliced, taper arc plate 31 is individually processed, process is simple；If all size phases of taper arc plate 31 of same cylinder
Together, then produced in enormous quantities using a set of equipment, greatly reduced the difficulty of processing and manufacturing expense of transition piece 3；
Cylinder is detachably spliced by multiple taper arc plates 31, the small volume of taper arc plate 31, convenient transportation.
Preferably, the cylinder is made of metal.Due to transition piece 3 be used only to the different tower segments of external diameter it
Between form transition, therefore usage quantity will not be too many, it is possible to is manufactured with metal, and metal manufacture intensity is high, due to its quantity
Limited, manufacturing cost will not also increase too much.
Specifically, as shown in Fig. 2 being equipped with connecting plate 313, the connecting plate in the left and right sides of the taper arc plate 31
313 are provided with connecting hole 314, and the connecting plate 313 of the adjacent taper arc plate 31 is mutually close to and by being located in the connection
Bolt in hole 314 is connected with each other.It is real by being arranged on the connecting plate 313 of its left and right sides between adjacent conical arc plate 31
Existing, connecting plate 313 can also strengthen the intensity of taper arc plate 31, it is ensured that safety.
Further, the two ends of the connecting plate 313 respectively with the upper and lower ends of taper arc plate 31 at two arcs
Shape flange section 311 is connected.After the connecting plate 313 of adjacent conical arc plate 31 is mutually close to, connection can be not only realized, while two ends
It is connected with two arc flange sections 311, connecting plate 313 can act also as the reinforcement of taper arc plate 31, enhances whole transition and connect
The intensity of fitting 3.
Specifically, the connecting plate 313 extends along the generatrix direction of the cylinder.Arc flange section 311 and connecting plate 313
It is mutually perpendicular to, connecting plate 313 can bear a big chunk pressure, further enhancing taper arc plate 31 and transition piece 3
Intensity.
Preferably, the connecting plate 313, arc flange section 311 are both connected to the inner side of the taper arc plate 31.Connecting plate
313rd, arc flange section 311 is both connected to inner side, and 31 outer surfaces of taper arc plate are smoother, can reduce whole transition piece 3
Windage, contribute to strengthen pylon wind loading rating.
Preferably, the taper arc plate 31, between arc flange section 311, connecting plate 313 by be welded to connect or one
Casting is formed.It is welded to connect that intensity is high, good airproof performance.In fact, if technique is allowed, it is also possible to which whole taper arc plate 31 is utilized
Casting technique is integrally formed, to simplify operation.
Embodiment two：
As shown in Fig. 3 to Fig. 7, the present invention also disclosed a kind of wind power tower, including basis 1 and multiple direct tube sections, described
By the mistake as described in embodiment one between basis 1 and direct tube section, and/or between the different direct tube section of two neighboring external diameter
Connector 3 is crossed to connect.Basis 1 is typically directly connected with direct tube section, but is also not excluded for some and in particular cases needs to be connected with transition
Fitting 3 carries out transition connection；Direct tube section is directly connected with external diameter identical direct tube section, using the transition for matching when external diameter is different
Connector 3 carries out transition connection；Due to the presence of transition piece 3, can thus be replaced with the direct tube section of a large amount of straight-tube shapes
Taper tower segments build wind power tower, and direct tube section simple structure, casting technique requirement is low, reduces the casting difficulty of tower segments；
Requirement of the direct tube section to mould is relatively low, and die manufacturing cost is low；External diameter identical direct tube section can be cast with one set of die batch, greatly
Number of molds is reduced greatly, die cost is reduce further.
Further, in multiple direct tube sections, including the concrete direct tube section 21 that is made up of concrete and by metal
The metal direct tube section 22 being made；Be provided with the concrete direct tube section 21 it is extending along its length, for wearing prestressing force
The vertical passage of rope 4；The two ends of the metal direct tube section 22 are flange face.As shown in figure 3, the connection of the top of transition piece 3
Metal direct tube section 22, the lower section of transition piece 3 connects concrete direct tube section 21, specific as shown in figure 4, the end of metal direct tube section 22
Flange face alignd with the arc flange section 311 of the end of transition piece 3 and be total to bolt 5 and be connected, so as to realize that transition is connected
The connection of part 3 and metal direct tube section 22；Again as shown in figure 5, the vertical passage of concrete direct tube section 21 and the end of transition piece 3
Arc flange section 311 on connecting hole 312 align, the prestressed cable 4 of concrete direct tube section 21 passes vertical passage and connection
Behind hole 312, fastened in the opposite side of arc flange section 311, so as to realize transition piece 3 with concrete direct tube section 21
Connection.
Certainly, the simply a kind of optional connecting method shown in Fig. 3, when wind power tower is built, as long as according to above-mentioned side
Formula is fastened, and transition piece 3 can arbitrarily be spliced with concrete direct tube section 21, metal direct tube section 22；Such as Fig. 7 institutes
Show, basis 1 is connected with concrete direct tube section 21, concrete direct tube section 21 connects metal direct tube section 22, gold by transition piece 3
Category direct tube section 22 connects concrete direct tube section 21 etc. by transition piece 3.I.e. can be in the top of transition piece 3 connection coagulation
Native direct tube section 21, lower section connection metal direct tube section 22, or it is all connected with concrete direct tube section in the upper and lower of transition piece 3
21 or it is all connected with metal direct tube section 22 etc. in the upper and lower of transition piece 3.Even can be by metal direct tube section 22 and coagulation
Native direct tube section 21, metal direct tube section 22 are directly connected to metal direct tube section 22, concrete direct tube section 21 and concrete direct tube section 21,
As long as both external diameters are identical；When concrete direct tube section 21 is directly connected to concrete direct tube section 21, prestressed cable 4 is worn successively
Fastening will be completed after crossing continuous more than two concrete direct tube sections 21 by the two ends fixation of prestressed cable 4 again.
Further, described basic 1 it is connected with the concrete direct tube section 21, pre- answering is fixedly connected with described basic 1
Power rope 4, the prestressed cable 4 through after the vertical passage in the concrete direct tube section 21 and the transition piece 3 or
The junction of next direct tube section is fastened.As shown in fig. 6, basis 1 is connected with concrete direct tube section 21, the concrete is straight
The top connection transition piece 3 of cylinder section 21；The bottom of prestressed cable 4 is fixed in basis 1, and prestressed cable 4 passes through the coagulation
After vertical passage, the flange of the bottom of transition piece 3 in native direct tube section 21, fastened at the top of the flange, optimized integration
1st, concrete direct tube section 21, the fastening of transition piece 3 are between later direct tube section or direct tube section leads to transition piece 3
Cross the connection of bolt 5 to lay a solid foundation, it is ensured that the stability of whole wind power tower.Prestressed cable 4 is preferably provided with many so as to further
Strengthen the stability of whole wind power tower.
Preferably, described basic 1 is concrete structure.As shown in fig. 6, concrete be made basis 1 can easily by
Prestressed cable 4 is fixed therein, it is ensured that the strength and stability of whole wind power tower.
For concrete direct tube section 21, the quantity of concrete direct tube section 21 is more and casting technique is simple, using concrete
Casting cost is relatively low, and reduce whole wind power tower builds cost；Cast in concrete place is unrestricted, can cast at the scene
Make to reduce the difficult cost of transport, it is also possible to transport to scene again after casting in advance.For concrete direct tube section 21, metal is straight
The cylinder cost of section 22 is slightly higher, but can strengthen the intensity of whole wind power tower, and the transition piece 3 and metal of metal manufacture are straight in addition
The cylinder service life of section 22 is longer, can be pulled down after concrete direct tube section 21 reaches service life, continues to use other wind
On electric pylon.Described basic 1 is that concrete structure fixes whole wind power tower and prestressed cable 4 to facilitate.
The transition piece 3 that the present invention is provided is that its round table-like cylinder is distributed by multiple around the axis of the cylinder, high
Degree identical taper arc plate 31 is detachably spliced, and the upper and lower side of taper arc plate 31 is equipped with the arc with connecting hole 312
Flange section 311 after splicing to form complete flange, convenient transport and storage；The setting of connecting plate 313 is not only realized
The connection of adjacent conical arc plate 31, while enhancing the intensity of whole taper arc plate 31；Multiple taper arc plates 31 splice what is obtained
Cylinder upper and lower side external diameter is different, it is possible to achieve the transition connection of the tower segments different to external diameter, and pylon is built can use a large amount of straight
The tower segments of tubular replace taper tower segments, substantially reduce tower segments casting difficulty and die cost.What the present invention was provided has
The wind power tower of the transition piece 3, between its basis 1 and direct tube section, and/or between the different direct tube section of two neighboring external diameter
Connected by foregoing transition connector 3, due to the presence of transition piece 3, can be with being largely made up of concrete or metal
The direct tube section of straight-tube shape builds wind power tower instead of taper tower segments, and direct tube section simple structure, casting technique requirement is low, reduces
The casting difficulty of tower segments；Requirement of the direct tube section to mould is relatively low, and die manufacturing cost is low；External diameter identical direct tube section can use one
Mold batch casts, and number of molds is greatly reduced, and reduce further die cost；Transition piece 3 can connect gold
Category direct tube section 22, it is also possible to connect concrete direct tube section 21, external diameter identical concrete direct tube section 21, metal direct tube section 22 also may be used
To be directly connected to so that whole wind power tower is assembled more flexibly, requirement flexibly control coagulation can be built according to wind power tower
The quantity of native direct tube section 21 and metal direct tube section 22, demand is built to meet different height, intensity requirement.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, on the premise of the technology of the present invention principle is not departed from, some improvement and replacement can also be made, these improve and replace
Also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of transition piece, it is characterised in that including round table-like cylinder, the cylinder by multiple around the cylinder axle
Line is distributed, height identical taper arc plate (31) is spliced, and the adjacent taper arc plate (31) is detachably connected；The cone
The upper and lower side of shape arc plate (31) is equipped with the arc flange section (311) with connecting hole (312).
2. transition piece as claimed in claim 1, it is characterised in that be all provided with the left and right sides of the taper arc plate (31)
There is connecting plate (313), the connecting plate (313) is provided with connecting hole (314), the connecting plate of the adjacent taper arc plate (31)
(313) mutually it is close to and the bolt by being located in the connecting hole (314) is connected with each other.
3. transition piece as claimed in claim 2, it is characterised in that the two ends of the connecting plate (313) respectively with it is described
Two arc flange section (311) connections at taper arc plate (31) upper and lower ends.
4. transition piece as claimed in claim 2, it is characterised in that the connecting plate (313) along the cylinder bus
Direction extends.
5. the transition piece as described in claim any one of 2-4, it is characterised in that the connecting plate (313), arc flange
Section (311) is both connected to the inner side of the taper arc plate (31).
6. transition piece as claimed in claim 5, it is characterised in that the taper arc plate (31), arc flange section
(311), by being welded to connect or being integrally cast between connecting plate (313).
7. transition piece as claimed in claim 1, it is characterised in that the cylinder is made of metal.
8. a kind of wind power tower, it is characterised in that including basic (1) and multiple direct tube sections, basic (1) and the direct tube section
Between, and/or the different direct tube section of two neighboring external diameter between by transition as described in claim any one of 1-7 company
Fitting (3) is connected.
9. wind power tower as claimed in claim 8, it is characterised in that in multiple direct tube sections, including be made up of concrete
Concrete direct tube section (21) and the metal direct tube section (22) that is made of metal；It is provided with the concrete direct tube section (21)
The vertical passage for extending along its length；The two ends of the metal direct tube section (22) are flange face.
10. wind power tower as claimed in claim 9, it is characterised in that the basis (1) and the concrete direct tube section (21)
Connection, prestressed cable (4) is fixedly connected with the basis (1), the prestressed cable (4) through after the vertical passage in institute
Concrete direct tube section (21) is stated to be fastened with the junction of the transition piece (3) or next direct tube section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145806.5A CN106762441B (en) | 2016-12-13 | 2016-12-13 | Transition connecting piece and wind power tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145806.5A CN106762441B (en) | 2016-12-13 | 2016-12-13 | Transition connecting piece and wind power tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762441A true CN106762441A (en) | 2017-05-31 |
| CN106762441B CN106762441B (en) | 2020-03-03 |
Family
ID=58876440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611145806.5A Active CN106762441B (en) | 2016-12-13 | 2016-12-13 | Transition connecting piece and wind power tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762441B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111946556A (en) * | 2020-07-29 | 2020-11-17 | 上海市机电设计研究院有限公司 | Construction positioning method for precast concrete shell ring |
| CN113941428A (en) * | 2021-10-26 | 2022-01-18 | 青岛建一混凝土有限公司 | Construction waste recycling and processing system |
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| CN111946556B (en) * | 2020-07-29 | 2021-07-23 | 上海市机电设计研究院有限公司 | Construction positioning method for precast concrete shell ring |
| CN113941428A (en) * | 2021-10-26 | 2022-01-18 | 青岛建一混凝土有限公司 | Construction waste recycling and processing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762441B (en) | 2020-03-03 |
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