CN103883482A - Precast concrete shell ring, manufacturing method thereof and fan tower barrel - Google Patents
Precast concrete shell ring, manufacturing method thereof and fan tower barrel Download PDFInfo
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- CN103883482A CN103883482A CN201410121336.3A CN201410121336A CN103883482A CN 103883482 A CN103883482 A CN 103883482A CN 201410121336 A CN201410121336 A CN 201410121336A CN 103883482 A CN103883482 A CN 103883482A
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000003014 reinforcing effect Effects 0.000 claims description 115
- 229910000831 Steel Inorganic materials 0.000 claims description 42
- 239000010959 steel Substances 0.000 claims description 42
- 210000002421 cell wall Anatomy 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 17
- 239000004567 concrete Substances 0.000 claims description 9
- 241000826860 Trapezium Species 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 3
- 238000010248 power generation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 17
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000011440 grout Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a precast concrete shell ring, a manufacturing method thereof and a fan tower barrel, relates to the wind power generation technology, and provides a shell ring which is convenient to transport and ensures good overall strength. The precast concrete cylinder section comprises at least two arc-shaped components which are connected in a matching way; a plurality of closed loop reinforcing steel bars arranged at intervals are arranged in the arc-shaped component; each closed loop reinforcing steel bar comprises an extension end positioned outside the arc-shaped member; the end surface of the arc-shaped component is provided with a groove and has a structure with a through top end and a closed bottom end; the end face of the arc-shaped component is provided with a bonding structure around the groove; when adjacent arc-shaped components are matched and connected, the extending ends of the closed-loop reinforcing steel bars on the opposite surfaces of the arc-shaped components are arranged in a staggered mode, and the bonding structure is used for bonding the adjacent arc-shaped components and sealing the opposite grooves; after the adjacent arc-shaped components are connected in a matched mode, the opposite grooves form a cavity with an open top end and a closed periphery, and grouting materials are filled in the cavity. The invention is mainly used in the production of the fan tower.
Description
Technical field
The present invention relates to wind generating technology, relate in particular to a kind of precast concrete shell ring, its manufacture method and blower fan tower barrel.
Background technique
The device that wind power generating set (abbreviation blower fan) is is electric energy by wind energy transformation, comprises tower cylinder and is fixed on the engine rooms of wind power generators on tower cylinder, this cabin is connected with fan blade.Wherein, tower cylinder need to guarantee good steadiness as supporting element, and then guarantees the Security of fan operation.
In prior art, because physical dimension, the whole height of tower cylinder are larger, cause existing manufacturing process cannot meet overall processing request, therefore tower cylinder has generally included multiple shell rings, then by by stacking multiple shell rings and be fixedly connected with to form tower cylinder.When practical application, conventionally after shell ring manufacturing is completed, multiple shell rings need to be transported to wind energy turbine set and carry out the assembling of tower cylinder by means of transportation, but, be subject to the restriction of traffic condition, the bearing capacity of such as means of transportation and limited space, limit for height bridge etc., cause shell ring transportation inconvenience, Given this, conventionally further shell ring is made as to multiple arc components, to facilitate transportation, finally by multiple arc components are spliced to form to shell ring, and then complete the assembling of tower cylinder.
But, single shell ring is made as while splicing by multiple arc components the structure forming, easily reduce the intensity of shell ring self, and then reduce the bulk strength of tower cylinder, therefore need to provide a kind of convenient transportation, simultaneously the good shell ring of bulk strength.
Summary of the invention
Embodiments of the invention provide a kind of precast concrete shell ring, its manufacture method and blower fan tower barrel, so that a kind of convenient transportation to be provided, guarantee the shell ring that bulk strength is good simultaneously.
For achieving the above object, embodiments of the invention adopt following technological scheme:
A kind of precast concrete shell ring, comprises at least two arc components that are connected; Along described shell ring bearing of trend, in described arc component, be provided with multiple spaced closed loop reinforcing bars; Each described closed loop reinforcing bar arranges along described shell ring circumferential direction, and includes the extending end that is positioned at described arc component outside; Along described shell ring circumferential direction, described arc component end face is provided with groove, and described groove extends and arranges along described shell ring bearing of trend, and for top connects, the structure of bottom sealing; Along described shell ring circumferential direction, on described arc component end face, be provided with bonded structure around described groove; When adjacent described arc component is connected, the extending end of the closed loop reinforcing bar of described arc component opposing side is crisscross arranged, and described bonded structure is for bonding adjacent described arc component, simultaneously for sealing relative described groove; After adjacent described arc component is connected, relative described groove forms the cavity volume that top is uncovered, surrounding is sealed, and described cavity volume is interior for filling grouting material.
Wherein, the extending end of each described arc component is connected with locking reinforcing bar jointly, and described locking reinforcing bar arranges along described shell ring bearing of trend, and is fixedly connected with described extending end binding type.
Be specifically as follows, the extending end of each described arc component is connected with two described locking reinforcing bars jointly, and two described locking reinforcing bars are parallel to each other, interval arranges.
When actual manufacture, the extending end of described closed loop reinforcing bar is that the shape of described groove cross section and described extending end structure match without the trapezium structure on long base.
Particularly, parallel between multiple described closed loop reinforcing bars, equidistantly arrange, and distance between adjacent described closed loop reinforcing bar is 100 to 200 millimeters.
Wherein, two outer drift angle settings of the described extending end of two corresponding trapezium structures of described locking reinforcing bar, and be all positioned at described extending end inner side.
In order to improve shell ring intensity, in described arc component, be also provided with multiple spaced reinforced steels, described reinforced steel correspondence is located in the cell wall of described groove.
Particularly, along shell ring bearing of trend, multiple described reinforced steels are equidistant, be arranged in parallel, and described reinforced steel is M type structure; Two homonymy top correspondences of the described reinforced steel of M type structure are located in the cell wall of described groove.
Preferably, the setting that is formed in one of described reinforced steel, and be fixedly connected with tie bar between outermost two seamed edges of the described reinforced steel of M type structure.
Wherein, described bonded structure is full-bodied rubber strip.
When actual production is manufactured, each described shell ring includes two described arc components, and each described arc component size is 1/2 of single described shell ring size; Or each described shell ring includes four described arc components, each described arc component size is 1/4 of single described shell ring size.
A manufacture method for precast concrete shell ring, comprises the steps: to make the arc component that is embedded with closed loop reinforcing bar; Along shell ring circumferential direction, processing and fabricating groove on described arc component end face; Along described shell ring circumferential direction, on described arc component end face, paste and form bonded structure around described groove; Adjacent described arc component is connected, and make described arc component opposing side described closed loop reinforcing bar the bonding adjacent described arc component of the interlaced setting of extending end, described bonded structure and seal relative described groove; The top that forms to relative described groove is uncovered, water grouting material in surrounding sealing cavity volume, so that adjacent described arc component is spliced to form to described shell ring.
Wherein, described making is embedded with the step of the arc component of closed loop reinforcing bar, specifically comprises: in mould, overlap closed loop reinforcing bar and reinforced steel; To casting concrete in described mould, form arc component.
Particularly, before watering the step of grouting material in, surrounding sealing cavity volume uncovered on the described top forming to relative described groove, also include: common binding locking reinforcing bar on the extending end of the closed loop reinforcing bar of each described arc component.
A tower cylinder for wind power generating set, comprises precast concrete shell ring described above.
In precast concrete shell ring, its manufacture method and blower fan tower barrel that the embodiment of the present invention provides, precast concrete shell ring comprises at least two arc components that are connected, wherein, in each arc component, be equipped with multiple along the spaced closed loop reinforcing bar of shell ring bearing of trend, each closed loop reinforcing bar arranges along arc component circumferential direction, and includes the extending end that is positioned at arc component outside.When be connected formation shell ring by multiple arc components, arc component opposing side is provided with along shell ring bearing of trend and extends the groove arranging, and be provided with bonded structure around groove on opposing side, when thereby adjacent arc component is connected, be placed in groove by the extending end of closed loop reinforcing bar, and interlaced setting, the extending end of an arc component lays respectively between the adjacent extending end of another arc component and two ends, now adjacent arc component compresses bonded structure mutually, make bonded structure complete the preliminary connection of adjacent arc component, seal relative groove simultaneously, because single groove is that top connects, the structure of bottom sealing, therefore after adjacent arc component is connected, it is uncovered that relative groove can form top under bonded structure, the cavity volume of surrounding sealing, finally complete the splicing of arc component by fill grouting material in cavity volume, form shell ring.Analyze thus known, between adjacent arc component, mainly there is pulling force, act on the pulling force on extending end, by by interlaced multiple extending ends setting, pulling force can be disperseed to slow down pulling force effect, by high strength grout, the extending end being crisscross arranged be linked together simultaneously, thereby complete the firm connection of adjacent arc component, the intensity that guarantees shell ring is good, and then has guaranteed that tower cylinder bulk strength is good; And, because shell ring has been made as the composition of multiple arc components, reduce transport difficulty, guarantee the convenience of shell ring transportation.
Accompanying drawing explanation
The arc component structural representation of the precast concrete shell ring that Fig. 1 provides for the embodiment of the present invention;
Structural representation when the adjacent arc component splicing of the precast concrete shell ring that Fig. 2 provides for the embodiment of the present invention;
The arc component front view of the precast concrete shell ring that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is spliced to form shell ring structural representation for the precast concrete shell ring that the embodiment of the present invention provides;
The manufacture method flow chart of a kind of precast concrete shell ring that Fig. 5 provides for the embodiment of the present invention.
In figure: 11 is that arc component, 111 is that groove, 112 is that bonded structure, 12 is that closed loop reinforcing bar, 121 is that extending end, 13 is that reinforced steel, 15 is that tie bar, 21 is that grouting material, 41 is shell ring for locking reinforcing bar, 14.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present invention precast concrete shell ring is described in detail.
The embodiment of the present invention provides a kind of precast concrete shell ring, as depicted in figs. 1 and 2, comprises at least two arc components that are connected 11; Along shell ring bearing of trend, in arc component 11, be provided with multiple spaced closed loop reinforcing bars 12; Each closed loop reinforcing bar 12 arranges along shell ring circumferential direction, and includes the extending end 121 that is positioned at arc component 11 outsides; Along shell ring circumferential direction, arc component 11 end faces are provided with groove 111, and groove 11 extends and arranges along shell ring bearing of trend, and are that top is uncovered, the structure of bottom sealing; Along shell ring circumferential direction, on arc component 11 end faces, be provided with bonded structure 112 around groove 111; Wherein, when adjacent arc component 11 is connected, the extending end 121 of the closed loop reinforcing bar 12 of arc component 11 opposing sides is crisscross arranged, and bonded structure 112 is for bonding adjacent arc component 11, simultaneously for sealing relative groove 111; After adjacent arc component 11 is connected, relative groove 111 forms the cavity volume that top is uncovered, surrounding is sealed, and cavity volume is interior for filling grouting material 21.
In the precast concrete shell ring that the embodiment of the present invention provides, comprise at least two arc components that are connected, wherein, in each arc component, be equipped with multiple along the spaced closed loop reinforcing bar of shell ring bearing of trend, each closed loop reinforcing bar arranges along arc component circumferential direction, and includes the extending end that is positioned at arc component outside.When be connected formation shell ring by multiple arc components, arc component opposing side is provided with along shell ring bearing of trend and extends the groove arranging, and be provided with bonded structure around groove on opposing side, when thereby adjacent arc component is connected, be placed in groove by the extending end of closed loop reinforcing bar, and interlaced setting, the extending end of an arc component lays respectively between the adjacent extending end of another arc component and two ends, now adjacent arc component compresses bonded structure mutually, make bonded structure complete the preliminary connection of adjacent arc component, seal relative groove simultaneously, because single groove is that top connects, the structure of bottom sealing, therefore after adjacent arc component is connected, it is uncovered that relative groove can form top under bonded structure, the cavity volume of surrounding sealing, finally complete the splicing of arc component by fill grouting material in cavity volume, form shell ring.Analyze thus known, between adjacent arc component, mainly there is pulling force, act on the pulling force on extending end, by by interlaced multiple extending ends setting, pulling force can be disperseed to slow down pulling force effect, by high strength grout, the extending end being crisscross arranged be linked together simultaneously, thereby complete the firm connection of adjacent arc component, the intensity that guarantees shell ring is good, and then has guaranteed that tower cylinder bulk strength is good; And, because shell ring has been made as the composition of multiple arc components, reduce transport difficulty, guarantee the convenience of shell ring transportation.
It is emphasized that single shell ring mostly is hollow cone platform structure, the longitudinal cross-section of shell ring is trapezoidal faces, and above-mentioned shell ring bearing of trend is multiple shell rings and forms after tower cylinder, the bearing of trend of tower cylinder; The circumferential direction of above-mentioned shell ring, is the direction rounding around shell ring outer surface.Wherein, the location of all directions of the present embodiment is being spliced to form multiple arc components 11 shell ring, completing after the assembling of multiple shell rings is formed to tower cylinders.
When adjacent arc component 11 is connected, the extending end 121 of the closed loop reinforcing bar 12 of arc component 11 opposing sides is arranged in a crossed manner; Along shell ring bearing of trend, between multiple extending ends 121 arranged in a crossed manner, be jointly connected with locking reinforcing bar 13, locking reinforcing bar 13 is fixed together with extending end 121 binding types.
Specifically in the time of practical application, include two arc components 11 that structure size is identical as example take single shell ring, the size of the body of two arc components 11 (concrete part) equates, each arc component 11 sizes are 1/2 of single shell ring size; Certainly, single shell ring also can include four arc components 11 that structure size is identical, and each arc component 11 sizes are 1/4 of single shell ring size.In the time that two arc components 11 are connected to form shell ring, in order further to improve the intensity of shell ring, improve the steadiness that two arc components 11 connect, can be as shown in Figure 2, along shell ring bearing of trend, the extending end 121 of each arc component 11 is connected with locking reinforcing bar 13 jointly, and this locking reinforcing bar 13 is fixed together with extending end 121 binding types, for example, connect by wire binding.Wherein, locking reinforcing bar 13 is after two arc components 11 are tentatively connected by bonded structure 112, the now interlaced setting of extending end 121, then locking reinforcing bar 13 is connected on extending end 121, in the cavity volume finally forming to relative groove 111 again, water grouting material 21.Thereby by locking reinforcing bar 13, can play spacing effect, even if the extending end 121 of arc component 11 is because the effect of pulling force occurs to separate or depart from from grouting material 21, can be by the barrier effect of locking reinforcing bar 13, prevent from separating, can be mutually stuck between the locking reinforcing bar 13 on arc component 11 extending ends 121 and another arc component 11 extending ends 121.
In addition, for the pulling force acting on arc component 11 extending ends 121, can, by the effect of locking reinforcing bar 13, be converted into the pressure that acts on grouting material 21 inside, thereby slow down pulling force effect, improve the connectivity robustness of two arc components.Particularly, the extending end 121 of each arc component 11 is connected with two locking reinforcing bars 13 jointly, and two locking reinforcing bars 13 are parallel to each other, interval arranges, thereby further improves the position-limiting action of locking reinforcing bar 13.
As depicted in figs. 1 and 2, when two arc components 11 are connected, be provided with the opposing side of extending end 121 because the existence of groove 111, while extending end 121 insert in groove 111, thereby the cell wall of groove 111 can be close to each other and laminating, improve the appearance design quality of whole shell ring, the extending end being crisscross arranged 121 is placed in the space that two grooves 111 form simultaneously, has effectively avoided the damage to extending end 121 such as introduced contaminants, such as sour corrosion etc.Wherein, leak when preventing from watering grouting material 21, guarantee that the cavity volume that relative groove 111 forms has good sealing property, improve Adhesion force each other between two arc components 11 simultaneously, further improve shell ring appearance design quality and the protective action to extending end 121, can be as shown in Figures 2 and 3, along on arc component 11 end faces of shell ring circumferential direction, be provided with bonded structure 112 around groove 111, this bonded structure 112 arranges along shell ring bearing of trend on corresponding end-faces, it can be full-bodied rubber strip 112 etc., it is the cell wall outer surface that rubber strip 112 is located at groove 111, when thereby two arc components 11 are connected, interact with each other rubber strip 112 can compression, thereby make rubber strip 112 sealed groove 111 both sides, avoid external substance to enter that groove 111 is interior causes damage to extending end 121, play the effect of sealing, also facilitate the pouring of follow-up grouting material 21.This wherein, rubber strip 112 can be located on the opposing side of two arc components 11, also can be located on the opposing side of one of them arc component 11, and in Fig. 3, rubber strip 112 forms U-shaped structure.U-shaped rubber strip 112 can play the effect of bonding two arc components 11, can also play the effect of water-tight.
Wherein, under the effect of grouting material 21, extending end 121 and the stationary nodes of locking reinforcing bar 13 can be integrally combined, strengthen the Adhesion force between two arc components 11.
Particularly, the shell ring structure forming in order not affect two arc components 11, as depicted in figs. 1 and 2, the extending end 121 of closed loop reinforcing bar 12 is made as the trapezium structure without long base, the shape of cross section of corresponding groove 111 is trapezium structure, thereby match with extending end 121, extending end 121 can be placed in groove 111 smoothly.In Fig. 2, when two arc components 11 are connected, the extending end 121 being crisscross arranged, in the situation that overlooking, the structure shown in can pie graph 2, overlapping intersection is along the symmetrical hexagonal structure of being projected as of shell ring bearing of trend.
When actual manufacturing, closed loop reinforcing bar 12 need to be embedded in concrete, thereby complete the manufacture of arc component 11, as shown in Figure 3, in arc component 11, be formed with 10 closed loop reinforcing bars 12, and parallel between multiple closed loop reinforcing bar 12, equidistantly setting, be convenient to manufacturing, in arc component 11, be uniformly distributed, make the entirety of arc component 11 stressed evenly, avoid concentrating of pulling force etc. simultaneously.Wherein, the distance between preferred adjacent closed loop reinforcing bar is 100 to 200 millimeters (mm), is conventionally made as 150 millimeters.
In addition, in the time that two arc components 11 are connected, the opposing side of one arc component 11 can be provided with 10 closed loop reinforcing bars 12 in Fig. 2, the opposing side of another arc component 11 also can be provided with 10 closed loop reinforcing bars 12, and when two arc component 11 alignment connect, 20 relative interlaced settings of closed loop reinforcing bar; Certainly, the opposing side of another arc component 11 also can be provided with 9 closed loop reinforcing bars 12, and these 9 closed loop reinforcing bars 12 between adjacent closed loop reinforcing bar 12, are crisscross arranged thereby complete successively in Fig. 2.
After the extending end 121 of the opposing side of two arc components 11 is crisscross arranged, need to lock the connection of reinforcing bar 13, particularly, with 20 (on each opposing side each 10) interlaced examples that are set to of closed loop reinforcing bar 12, between adjacent extending end 121 on each arc component 11, can jointly connect locking reinforcing bar 13, thereby complete the connection of the extending end 121 of single arc component 11 by multiple short locking reinforcing bars 13, wherein, locking reinforcing bar 13 is preferably fixedly connected with extending end 121 binding types by steel wire etc.
When specific operation, also can use long locking reinforcing bar 13 to connect, particularly, with 20 interlaced examples that are set to of closed loop reinforcing bar 12, long locking reinforcing bar 13 arranges along shell ring bearing of trend, and is jointly connected on 10 extending ends 121 of an arc component, is convenient to install.Wherein this long locking reinforcing bar 13 can all be connected by binding types such as steel wires with each extending end 121, improves the steadiness connecting.
Conventionally, in order to improve the position-limiting action of locking reinforcing bar 13, many long locking reinforcing bars 13 can be set, wherein in Fig. 2, include on the extending end 121 of 4 locking reinforcing bar 13(each arc components 11 and be jointly connected with two), and in the hexagonal structure forming in Fig. 2, be as the criterion with the orientation under state shown in Fig. 2, this hexagonal structure left side, right both sides are provided with four drift angles, the intensity at these four drift angle places relatively a little less than, therefore preferably by four locking reinforcing bars 13 respectively correspondence be located at above-mentioned four corner position places, thereby play the effect of further reinforcement, improve stable connection.Wherein, above-mentioned hexagonal four drift angles are respectively two outer drift angles of the extending end 121 of trapezium structure, and the locking reinforcing bar 13 on an arcuate structure 11 is located at two outer drift angles of the extending end 121 of trapezium structure, and are all positioned at extending end 121 inner sides.Certainly, more (more than four) long locking reinforcing bar 13 can also be set, the such as six roots of sensation etc., corresponding hexagonal six drift angle places arrange respectively, thereby the pulling force acting on extending end 121 is more converted into the pressure that acts on grouting material 21 inside by locking reinforcing bar 13, improves the steadiness of integrated connection.
In the precast concrete shell ring that the present embodiment is described; due to for along shell ring circumferential direction; the end of arc component 11 is provided with groove 111, and to there being cell wall to be positioned at the inside and outside sidewall end of arc component 11, this cell wall is owing to being projection on arc component 11; intensity a little less than; easily there is unbalance stress and cause the situation such as conquassation or cracking, therefore as depicted in figs. 1 and 2, can be by reinforced steel 14 be set in cell wall; to improve the intensity of cell wall, and then improve the intensity of arc component 11.Wherein reinforced steel 14 can be multiple, and arranges at the interior interval of arc component 11, preferably closes on closed loop reinforcing bar 12 and arranges, thereby for being provided with 10 closed loop reinforcing bars 12 in Fig. 3, also can parallel in arc component, equidistantly be provided with 10 reinforced steels 14.This wherein, in the time of manufacturing arc component 11, can be fixedly connected with closed loop reinforcing bar 12 in advance with reinforced steel 14, arc component 11 is further being made in for example welding.
Wherein, because a groove 111 is to there being two cell walls, therefore in two cell walls, equivalent arranges multiple reinforced steels 14, and the reinforced steel 14 in two cell walls is symmetrical arranged, for example, in Fig. 3, take the state of orientation shown in Fig. 3 as benchmark, in left and right two cell walls, be equipped with 10 reinforced steels 14, and left and right being symmetrical arranged.This wherein, the reinforced steel 14 being located in cell wall can be a reinforcing bar, also can be as depicted in figs. 1 and 2, according to the structure of cell wall (structure of cell wall is determined according to the structure of groove 111), a bar bending can be become to the shape of corresponding cell wall structure, both match, and can improve the reinforcement effect of reinforced steel 14 to cell wall.
In Fig. 1 and Fig. 2, in two cell walls in symmetrically arranged one group of reinforced steel 14, i.e. two symmetrical reinforced steels 14 setting that is formed in one, form as the similar M type of gained in Fig. 1 and Fig. 2 structure, the reinforced steel 14 of this M type structure is by forming by a reinforcing bar bending, and bulk strength is higher.In Fig. 1 and Fig. 2, two homonymy top correspondences of the reinforced steel 14 of M type structure are located in two cell walls, and the structure of top and cell wall matches.
Wherein, in order further to improve the reinforcement effect of reinforced steel 14, improve reinforced steel 14 self intensity, can be as depicted in figs. 1 and 2, between outermost two seamed edges of the reinforced steel 14 of M type structure, connect tie bar 15, in Fig. 1 and Fig. 2, a reinforced steel 14 of an arc component 11 is provided with two tie bars 15, also can be more, and can be equidistantly between multiple tie bar 15, evenly arrange.
The making flow process of the precast concrete shell ring in the wind power generating set (abbreviation blower fan) of by Fig. 1 to Fig. 4, above-described embodiment being described below, is elaborated.Wherein, Fig. 4 is the structure of a shell ring 41, and it includes two arc components 11.
First need to manufacture arc component 11, in this process, closed loop reinforcing bar 12 and the reinforced steel 14 that is provided with tie bar 15 need to be embedded in arc component 11, form the arc component shown in Fig. 1 and Fig. 3 by casting afterwards, it is provided with groove 111 and multiple spaced closed loop reinforcing bar 12, and closed loop reinforcing bar 12 includes extending end 121.
Along shell ring circumferential direction, on the end face of arc component 11, around groove 111 adhesive seal rubber strips 112, this rubber strip 112 is U-shaped structure afterwards.
After this, as shown in Figure 2, two arc components 11 are spliced, coupling connects and composes single shell ring 41.First arc component 11 is transported to wind energy turbine set by means of transportation, by lifting device, two arc components 11 are sling afterwards, and make the interlaced setting of extending end 121 on the opposing side of two arc components 11, make the opposing side of two arc components 11 mutually draw close simultaneously, and mutually compress the rubber strip 112 being positioned on opposing side, make the opposing side of two arc components complete preliminary connection by rubber strip 112.
Then, to four of interior insertions of the extending end 121 being crisscross arranged locking reinforcing bars 13, and by steel wire etc., locking reinforcing bar 13 and extending end 121 binding types are fixed together, wherein can be by steel wire is repeatedly wound around, firm to guarantee to tie up.
Finally, after completing aforesaid operations, under the effect that the groove on the opposing side of two arc components 11 seals at rubber strip 112, can form the cavity volume that upper end is uncovered, surrounding seals, thereby in cavity volume, fill high-intensity grouting material 21, the splicing that completes two arc components 11 is fixed.
Hence one can see that, the grouting material 21 being combined as a whole by the extending end 121 being crisscross arranged, the locking reinforcing bar 13 being fixedly connected with extending end 121 and by extending end 121, locking reinforcing bar 13, can effectively improve two Adhesion forces between arc component 11, thereby improve the intensity of shell ring, and then improve the bulk strength of tower cylinder.Wherein, the connection of above-mentioned two arc components 11 completes by reinforcing bar, rubber strip and grouting material, is common building materials, and buying is convenient and cost is low, and practicability is high.
The embodiment of the present invention also provides a kind of manufacture method of precast concrete shell ring, as shown in Figure 5, comprises the steps:
Step 51, making are embedded with the arc component of closed loop reinforcing bar.
Step 53, along shell ring circumferential direction, on arc component end face around groove paste form bonded structure.
In the manufacture method of the precast concrete shell ring that the embodiment of the present invention provides, can manufacture by this manufacture method the precast concrete shell ring that above-described embodiment is described, this precast concrete shell ring comprises at least two arc components that are connected, wherein, in each arc component, be equipped with multiple along the spaced closed loop reinforcing bar of shell ring bearing of trend, each closed loop reinforcing bar arranges along arc component circumferential direction, and includes the extending end that is positioned at arc component outside.When be connected formation shell ring by multiple arc components, arc component opposing side is provided with along shell ring bearing of trend and extends the groove arranging, and be provided with bonded structure around groove on opposing side, when thereby adjacent arc component is connected, be placed in groove by the extending end of closed loop reinforcing bar, and interlaced setting, the extending end of an arc component lays respectively between the adjacent extending end of another arc component and two ends, now adjacent arc component compresses bonded structure mutually, make bonded structure complete the preliminary connection of adjacent arc component, seal relative groove simultaneously, because single groove is that top connects, the structure of bottom sealing, therefore after adjacent arc component is connected, it is uncovered that relative groove can form top under bonded structure, the cavity volume of surrounding sealing, finally complete the splicing of arc component by fill grouting material in cavity volume, form shell ring.Analyze thus known, between adjacent arc component, mainly there is pulling force, act on the pulling force on extending end, by by interlaced multiple extending ends setting, pulling force can be disperseed to slow down pulling force effect, by high strength grout, the extending end being crisscross arranged be linked together simultaneously, thereby complete the firm connection of adjacent arc component, the intensity that guarantees shell ring is good, and then has guaranteed that tower cylinder bulk strength is good; And, because shell ring has been made as the composition of multiple arc components, reduce transport difficulty, guarantee the convenience of shell ring transportation.
Wherein, step 51 specifically can comprise following sub-step:
Step 511, in mould, overlap closed loop reinforcing bar and reinforced steel.
Step 512, to casting concrete in mould, form arc component.
In the manufacturing process of shell ring, conventionally by pre-establishing the mould identical with arc component 11 structures, thereby by placement of concrete in mould, can complete the manufacture of arc component 11.Wherein, in mould, overlap joint is fixed closed loop reinforcing bar 12 and reinforced steel 14 in advance, again to placement of concrete in mould, can make arc component 11 moulding time, closed loop reinforcing bar 12 is positioned at arc component 11 inside with reinforced steel 14, and be firmly connected with arc component 11, be convenient to the splicing of follow-up shell ring, can improve the intensity of shell ring simultaneously.
Particularly, between step 54 and step 55, also include: step 541, common binding locking reinforcing bar on the extending end of the closed loop reinforcing bar of each arc component.
Equally, water grouting material 21 in cavity volume before, by first bundle locking reinforcing bar 13 on extending end 121, while finally watering grouting material 21, can make to lock reinforcing bar 13 and be formed in grouting material 21, and firmly be connected with grouting material 21, prevent the phenomenons such as loosening.
Need explanation herein, the precast concrete shell ring that the manufacture method of this precast concrete shell ring is described at above-described embodiment is made in flow process and is elaborated, and does not repeat at this.
The embodiment of the present invention provides again a kind of tower cylinder of wind power generating set, comprises the precast concrete shell ring that multiple above-described embodiments are described.
In the tower cylinder of the wind power generating set that the embodiment of the present invention provides, due to the precast concrete shell ring that comprises that above-described embodiment is described, this precast concrete shell ring comprises at least two arc components that are connected, wherein, in each arc component, be equipped with multiple along the spaced closed loop reinforcing bar of shell ring bearing of trend, each closed loop reinforcing bar arranges along arc component circumferential direction, and includes the extending end that is positioned at arc component outside.When be connected formation shell ring by multiple arc components, arc component opposing side is provided with along shell ring bearing of trend and extends the groove arranging, and be provided with bonded structure around groove on opposing side, when thereby adjacent arc component is connected, be placed in groove by the extending end of closed loop reinforcing bar, and interlaced setting, the extending end of an arc component lays respectively between the adjacent extending end of another arc component and two ends, now adjacent arc component compresses bonded structure mutually, make bonded structure complete the preliminary connection of adjacent arc component, seal relative groove simultaneously, because single groove is that top connects, the structure of bottom sealing, therefore after adjacent arc component is connected, it is uncovered that relative groove can form top under bonded structure, the cavity volume of surrounding sealing, finally complete the splicing of arc component by fill grouting material in cavity volume, form shell ring.Analyze thus known, between adjacent arc component, mainly there is pulling force, act on the pulling force on extending end, by by interlaced multiple extending ends setting, pulling force can be disperseed to slow down pulling force effect, by high strength grout, the extending end being crisscross arranged be linked together simultaneously, thereby complete the firm connection of adjacent arc component, the intensity that guarantees shell ring is good, and then has guaranteed that tower cylinder bulk strength is good; And, because shell ring has been made as the composition of multiple arc components, reduce transport difficulty, guarantee the convenience of shell ring transportation.
Blower fan tower barrel, by stacking, the formation that is linked and packed of multiple shell rings, therefore, by improving the intensity of shell ring self, can improve the intensity of blower fan tower barrel entirety.
In description of the invention, it will be appreciated that, orientation or the position relationship of the indications such as term " " center ", " on ", D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward " be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; rather than the device of indication or hint indication or element must have specific orientation, with specific orientation structure with operate, therefore can not be interpreted as limitation of the present invention.
Term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, except as otherwise noted, the implication of " multiple " is two or more.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.
In the description of this specification, specific features, structure, material or feature can be with suitable mode combinations in any one or more embodiments or example.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (15)
1. a precast concrete shell ring, is characterized in that, comprises at least two arc components that are connected; Along described shell ring bearing of trend, in described arc component, be provided with multiple spaced closed loop reinforcing bars; Each described closed loop reinforcing bar arranges along described shell ring circumferential direction, and includes the extending end that is positioned at described arc component outside;
Along described shell ring circumferential direction, described arc component end face is provided with groove, and described groove extends and arranges along described shell ring bearing of trend, and for top connects, the structure of bottom sealing; Along described shell ring circumferential direction, on described arc component end face, be provided with bonded structure around described groove;
When adjacent described arc component is connected, the interlaced setting of extending end of the closed loop reinforcing bar of described arc component opposing side, described bonded structure is for bonding adjacent described arc component, simultaneously for sealing relative described groove; After adjacent described arc component is connected, relative described groove forms the cavity volume that top is uncovered, surrounding is sealed, and described cavity volume is interior for filling grouting material.
2. precast concrete shell ring according to claim 1, is characterized in that, the extending end of each described arc component is connected with locking reinforcing bar jointly, and described locking reinforcing bar arranges along described shell ring bearing of trend, and is fixedly connected with described extending end binding type.
3. precast concrete shell ring according to claim 2, is characterized in that, the extending end of each described arc component is connected with two described locking reinforcing bars jointly, and two described locking reinforcing bars are parallel to each other, interval arranges.
4. according to the precast concrete shell ring described in claim 2 or 3, it is characterized in that, the extending end of described closed loop reinforcing bar is that the shape of described groove cross section and described extending end structure match without the trapezium structure on long base.
5. precast concrete shell ring according to claim 4, is characterized in that, parallel between multiple described closed loop reinforcing bars, equidistantly arrange, and distance between adjacent described closed loop reinforcing bar is 100 to 200 millimeters.
6. precast concrete shell ring according to claim 5, is characterized in that, two outer drift angle settings of the described extending end of two corresponding trapezium structures of described locking reinforcing bar, and be all positioned at described extending end inner side.
7. precast concrete shell ring according to claim 5, is characterized in that, is also provided with multiple spaced reinforced steels in described arc component, and described reinforced steel correspondence is located in the cell wall of described groove.
8. precast concrete shell ring according to claim 7, is characterized in that, along shell ring bearing of trend, multiple described reinforced steels are equidistant, be arranged in parallel, and described reinforced steel is M type structure;
Two homonymy top correspondences of the described reinforced steel of M type structure are located in the cell wall of described groove.
9. precast concrete shell ring according to claim 8, is characterized in that, the setting that is formed in one of described reinforced steel, and be fixedly connected with tie bar between outermost two seamed edges of the described reinforced steel of M type structure.
10. precast concrete shell ring according to claim 1, is characterized in that, described bonded structure is full-bodied rubber strip.
11. precast concrete shell rings according to claim 10, is characterized in that, each described shell ring includes two described arc components, and each described arc component size is 1/2 of single described shell ring size;
Or each described shell ring includes four described arc components, each described arc component size is 1/4 of single described shell ring size.
The manufacture method of 12. 1 kinds of precast concrete shell rings, is characterized in that, comprises the steps:
Making is embedded with the arc component of closed loop reinforcing bar;
Along shell ring circumferential direction, processing and fabricating groove on described arc component end face;
Along described shell ring circumferential direction, on described arc component end face, paste and form bonded structure around described groove;
Adjacent described arc component is connected, and make described arc component opposing side described closed loop reinforcing bar the bonding adjacent described arc component of the interlaced setting of extending end, described bonded structure and seal relative described groove;
The top that forms to relative described groove is uncovered, water grouting material in surrounding sealing cavity volume, so that adjacent described arc component is spliced to form to described shell ring.
The manufacture method of 13. precast concrete shell rings according to claim 12, is characterized in that, described making is embedded with the step of the arc component of closed loop reinforcing bar, specifically comprises:
In mould, overlap closed loop reinforcing bar and reinforced steel;
To casting concrete in described mould, form arc component.
The manufacture method of 14. precast concrete shell rings according to claim 13, is characterized in that, before watering the step of grouting material, also includes in, surrounding sealing cavity volume uncovered on the described top forming to relative described groove:
Common binding locking reinforcing bar on the extending end of the closed loop reinforcing bar of each described arc component.
The tower cylinder of 15. 1 kinds of wind power generating set, is characterized in that, includes the precast concrete shell ring described in multiple claim 1-11 any one.
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| CN108412704A (en) * | 2018-05-17 | 2018-08-17 | 三重能有限公司 | Wind power generating set and its tower |
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| CN111456073A (en) * | 2019-01-18 | 2020-07-28 | 深圳国金电力新能设计院有限公司 | First bottom plate component, second bottom plate component, bottom plate and tower drum foundation |
| CN113136963A (en) * | 2021-04-19 | 2021-07-20 | 中交第三公路工程局有限公司 | Fabricated concrete structure connecting piece in high-rise building construction and construction method |
| CN113482860A (en) * | 2021-08-27 | 2021-10-08 | 北京银泰建构预应力技术股份有限公司 | Fully-assembled prestressed concrete tower foundation for wind turbine generator |
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