CN202194155U - Prestressed steel strand anchor bolt combined prefabricated cylindrical fan foundation - Google Patents
Prestressed steel strand anchor bolt combined prefabricated cylindrical fan foundation Download PDFInfo
- Publication number
- CN202194155U CN202194155U CN2011203096309U CN201120309630U CN202194155U CN 202194155 U CN202194155 U CN 202194155U CN 2011203096309 U CN2011203096309 U CN 2011203096309U CN 201120309630 U CN201120309630 U CN 201120309630U CN 202194155 U CN202194155 U CN 202194155U
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- steel strand
- prefabricated
- bolt
- anchor bolt
- crab
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Abstract
The utility model relates to a prestressed steel strand anchor bolt combined prefabricated cylindrical fan foundation, which is composed of a prefabricated cylindrical reinforced concrete foundation unit body and a vertical prestressed steel strand anchor bolt combination member. A prefabricated cylindrical reinforced concrete foundation is composed of a plurality of prefabricated unit bodies. The vertical prestressed steel strand anchor bolt combination member is composed of an upper anchor board, a lower anchor board, an anchor bolt, steel strand and a special combination connection member. The lower anchor board is embedded under a bottom section prefabricated unit body, one end of the steel strand is previously anchored at the bottom of the lower anchor board, the other end of the steel strand sequentially penetrates through the prefabricated unit bodies in the middle to be connected with one end of the anchor bolt through the special combination connection member, and the other end of the anchor bolt penetrates through the top section prefabricated unit body to be connected with a flange at the bottom of a tower tube. In a top section unit body, an extending sleeve is respectively embedded at the lower end of the anchor bolt and above the special combination connection member so that the anchor bolt can deform upward when pretightening force is exerted on the anchor bolt. The prestressed steel strand anchor bolt combined prefabricated cylindrical fan foundation is suitable for soft soil foundations, can replace pile foundations, and saves using quantity of concrete.
Description
Technical field
The utility model belongs to wind driven generator base prestressing technique field, is specifically related to a kind of prestress wire crab-bolt and makes up prefabricated cylindric blower foundation.
Background technology
Wind-power electricity generation is the main mode of Wind Power Utilization, and it builds the place by soft foundation such as wetland, the coastal intertidal zone mucky soil development upcountry of landlocked rock foundation.At present, the general pile foundation that adopts on this type ground, the pile foundation concrete amount is bigger, and cost is higher.(patent No.: ZL 2,009 2 0072636.1 for prestressing force crab-bolt precast assembly cartridge type blower foundation; Inventor: Ma Renyue; He Minjuan) also be applicable to this type soft foundation, save concrete, easy construction.But because reinforced concrete cylinder length is longer, the crab-bolt large usage quantity, and the cost of crab-bolt is relatively more expensive, segmentation connects also can make troubles for construction, thereby has increased the cost of wind power generation structure.
Summary of the invention
The purpose of the utility model is to provide a kind of prestress wire crab-bolt to make up prefabricated cylindric blower foundation.
The prestress wire crab-bolt that the utility model proposes makes up prefabricated cylindric blower foundation; Form with vertical prestressing steel strand bolt assembly 2 by prefabricated cylindric reinforced concrete foundation 1; Wherein: prefabricated cylindric reinforced concrete foundation 1 is made up of several prefabricated unit bodies, and vertical prestressing steel strand bolt assembly 2 is by last anchor slab 3, anchor slab 4, crab-bolt 5, steel strand 6 and special combination connector 7 are formed down, and following anchor slab 4 is pre-buried below coxopodite prefabricated unit body; Steel strand 6 one ends are anchored in down anchor slab 4 bottoms; The other end passes several prefabricated unit bodies successively, and the end through special combination connector 7 and top crab-bolt 5 is connected, and the other end of crab-bolt 5 passes epimerite prefabricated unit body and is connected with flange 8 at the bottom of the tower tube; In epimerite prefabricated unit body, crab-bolt 5 lower ends, special combination connector 7 tops are embedded with the cover 9 of extending; Flange 8 adopts vertical prestressing steel strand bolt assembly 2 to link to each other with prefabricated cylindric reinforced concrete foundation 1 at the bottom of the tower tube.
In the utility model, in epimerite prefabricated unit body, crab-bolt 5 lower ends, special combination connector 7 tops are buried the cover 9 of extending in advance underground, when crab-bolt is applied pretightning force crab-bolt upwards distortion use.
The utlity model has following beneficial effect:
1. the prestress wire crab-bolt makes up prefabricated cylindric blower foundation and is applicable to soft foundation, has replaced pile foundation, and concrete amount is less.Prefabricated cylinder-shaped steel reinforced concrete base unit body is a produce in factory, and the site operation cycle is shorter.
2. adopt the prestress wire bolt assembly to connect tower tube and basis; Overcome the strength and stiffness sudden change on discharge ring basis, the prestress wire bolt assembly runs through whole cylinder foundation, makes base concrete be in pressured state; Do not produce the crack, improve the durability on basis.
3. the prestress wire bolt assembly runs through whole prefabricated cylinder foundation, makes base concrete be in pressured state, only need the arrangement reinforcing bar in the basis, so amount of reinforcement is less.
4. replace most of crab-bolt with prestress wire, design strength improves, and saves steel.
Description of drawings
Fig. 1 is prefabricated cylindric blower foundation layout plan for the prestress wire crab-bolt makes up.
Fig. 2 is prefabricated cylindric blower foundation sectional drawing for the prestress wire crab-bolt makes up.
Fig. 3 is prefabricated cylindric blower foundation fragmentary detail view for the prestress wire crab-bolt makes up.
Fig. 4 is the assembly drawing of the coupling part of steel strand and crab-bolt.
Fig. 5 is the detail drawing of special combination connector 7.
Label among the figure: 1 is prefabricated cylinder-shaped steel reinforced concrete base unit body, and 2 is vertical prestressing steel strand bolt assemblies, and 3 is last anchor slab, and 4 are following anchor slab, and 5 is crab-bolt, and 6 is steel strand, and 7 is the special combination connector, and 8 is flange at the bottom of the tower tube, and 9 are the cover of extending.
The specific embodiment
Combine accompanying drawing to further specify the utility model through embodiment below.
Embodiment 1:
Like Fig. 1-shown in Figure 3, the utility model is made up of with vertical prestressing steel strand bolt assembly 2 prefabricated cylinder-shaped steel reinforced concrete base unit body 1.Wherein prefabricated cylindric reinforced concrete foundation 1 by several prefabricated unit bodies 1-1,1-2 ..., 1-n forms; Vertical prestressing steel strand bolt assembly 2 is by last anchor slab 3, anchor slab 4, crab-bolt 5, steel strand 6 and special combination connector 7 are formed down; Following anchor slab 4 is pre-buried in coxopodite prefabricated unit body 1-n below; Steel strand 6 one ends are anchored at down anchor slab 4 bottoms in advance, and the other end passes prefabricated unit body 1-(n-1) successively ... 1-2, the end through special combination connector 7 and top crab-bolt 5 is connected; The other end of crab-bolt 5 passes epimerite prefabricated unit body 1-1, is connected with flange 8 at the bottom of the tower tube.In epimerite prefabricated unit body 1-1, crab-bolt 5 lower ends, special combination connector 7 tops are buried the cover 9 of extending in advance underground.
Like Fig. 4 and shown in Figure 5, the lower part of special connecting piece 7 is shapes of an anchor cup, put into behind the two-piece type anchor clamps 10 can be effectively fixing steel strand 6; Internal thread is arranged at the top of special connecting piece 7, and an end of crab-bolt 5 has been made cup-shaped.Its radius increases, and screw thread is carved with in the outside, can be screwed in the special connecting piece 7, withstands two-piece type anchor clamps 10 simultaneously and guarantees steel strand 6 lockings and avoid steel strand 6.
Prefabricated cylindric reinforced concrete foundation 1 is made for batch production in the utility model; Construction stage penetrates vertical prestressing steel strand bolt assembly 2 in the prefabricated cylindric reinforced concrete foundation 1; To prestress wire applying portion pretightning force, it is whole that the basis is formed, well sinking; Sink in place then the connection, vertical prestressing steel strand bolt assembly 2 is applied whole pretightning forces with flange at the bottom of the blower fan tower barrel.
The utility model construction sequence is following:
1. with prefabricated cylinder-shaped steel reinforced concrete base unit body 1-2,1-3 ... The 1-n lifting stacks; Prestress wire 6 passes prefabricated cylinder-shaped steel reinforced concrete base unit body 1-(n-1) from the bottom up successively ... 1-2; Stretch-draw part pretightning force makes the base unit body form integral body.
2. well sinking utilizes earth excavation to, its verticality of velocity correction, reach certain depth stable till.
3. steel strand 6 upper ends connect dedicated set component 7, and 1-1 is in place for the prefabricated cylinder-shaped steel reinforced concrete of lifting final stage base unit body, connects crab-bolt 5 and goes up anchor slab 3, to crab-bolt applying portion pretightning force.
4. the continuation well sinking after sinking to putting in place, lifts coxopodite tower tube.
5. behind the tower tube hoisted in position, prestressing force crab-bolt 5 is connected with flange 8 at the bottom of the tower tube, and it is applied whole pretightning forces.
Claims (1)
1. a prestress wire crab-bolt makes up prefabricated cylindric blower foundation; Form by prefabricated cylindric reinforced concrete foundation (1) and vertical prestressing steel strand bolt assembly (2); It is characterized in that: prefabricated cylindric reinforced concrete foundation (1) is made up of several prefabricated unit bodies; Vertical prestressing steel strand bolt assembly (2) is made up of last anchor slab (3), following anchor slab (4), crab-bolt (5), steel strand (6) and special combination connector (7); Following anchor slab (4) is pre-buried in coxopodite prefabricated unit body below, and steel strand (6) one ends are anchored in down anchor slab (4) bottom, and the other end passes several prefabricated unit bodies successively; Be connected through the end of special combination connector (7) with top crab-bolt (5); The other end of crab-bolt (5) passes epimerite prefabricated unit body and is connected with flange (8) at the bottom of the tower tube, and in epimerite prefabricated unit body, crab-bolt (5) lower end, special combination connector (7) top are embedded with the cover (9) of extending; Flange at the bottom of the tower tube (8) adopts vertical prestressing steel strand bolt assemblies (2) to link to each other with prefabricated cylindric reinforced concrete foundation (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203096309U CN202194155U (en) | 2011-08-24 | 2011-08-24 | Prestressed steel strand anchor bolt combined prefabricated cylindrical fan foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203096309U CN202194155U (en) | 2011-08-24 | 2011-08-24 | Prestressed steel strand anchor bolt combined prefabricated cylindrical fan foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194155U true CN202194155U (en) | 2012-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203096309U Expired - Lifetime CN202194155U (en) | 2011-08-24 | 2011-08-24 | Prestressed steel strand anchor bolt combined prefabricated cylindrical fan foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194155U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877483A (en) * | 2012-09-11 | 2013-01-16 | 天津大学 | Foundation structure capable of being prefabricated and assembled and construction method thereof |
| CN103266621A (en) * | 2013-05-21 | 2013-08-28 | 孟庆波 | Steel strand prestress base structure of wind driven generator and construction method thereof |
| CN104532871A (en) * | 2014-12-04 | 2015-04-22 | 瑞风能源（武汉）工程技术有限公司 | Fan foundation and pre-stress component for same |
| CN106741689A (en) * | 2016-12-06 | 2017-05-31 | 哈尔滨工业大学深圳研究生院 | A kind of Spar types prefabricated PC armored concrete floating offshore blower foundation |
| CN108060820A (en) * | 2017-12-13 | 2018-05-22 | 北京市建筑工程研究院有限责任公司 | A kind of wind power tower prestress wire supporting installation device and its construction method |
-
2011
- 2011-08-24 CN CN2011203096309U patent/CN202194155U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877483A (en) * | 2012-09-11 | 2013-01-16 | 天津大学 | Foundation structure capable of being prefabricated and assembled and construction method thereof |
| CN103266621A (en) * | 2013-05-21 | 2013-08-28 | 孟庆波 | Steel strand prestress base structure of wind driven generator and construction method thereof |
| CN103266621B (en) * | 2013-05-21 | 2015-04-22 | 孟庆波 | Steel strand prestress base structure of wind driven generator and construction method thereof |
| CN104532871A (en) * | 2014-12-04 | 2015-04-22 | 瑞风能源（武汉）工程技术有限公司 | Fan foundation and pre-stress component for same |
| CN106741689A (en) * | 2016-12-06 | 2017-05-31 | 哈尔滨工业大学深圳研究生院 | A kind of Spar types prefabricated PC armored concrete floating offshore blower foundation |
| CN108060820A (en) * | 2017-12-13 | 2018-05-22 | 北京市建筑工程研究院有限责任公司 | A kind of wind power tower prestress wire supporting installation device and its construction method |
| CN108060820B (en) * | 2017-12-13 | 2019-07-12 | 北京市建筑工程研究院有限责任公司 | A kind of wind power tower prestress wire supporting installation device and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |