CN103422512B - Replaceable pre-embedded bolt formula wind generation set concrete foundation and construction method thereof - Google Patents
Replaceable pre-embedded bolt formula wind generation set concrete foundation and construction method thereof Download PDFInfo
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- CN103422512B CN103422512B CN201310383408.7A CN201310383408A CN103422512B CN 103422512 B CN103422512 B CN 103422512B CN 201310383408 A CN201310383408 A CN 201310383408A CN 103422512 B CN103422512 B CN 103422512B
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Abstract
The present invention relates to a kind of replaceable pre-embedded bolt formula wind generation set concrete foundation and construction method thereof.The object of this invention is to provide a kind of replaceable pre-embedded bolt formula wind generation set concrete foundation, so that bolt is changed and leveling convenience, be intended to simplify overall structure, convenient construction.Technical scheme of the present invention is: a kind of replaceable pre-embedded bolt formula wind generation set concrete foundation, concrete foundation is installed tower cylinder, it is characterized in that: described tower cylinder is connected with the flange in the bottom be embedded in advance in concrete foundation through tower drum flange, removable double high-strength prestressed bolt with concrete foundation, wherein high-strength prestressed bolt upper end adopts nut I and tower drum flange to fix, high-strength prestressed bolt lower end connecting welding is fixed on the nut II of flange in the bottom lower surface, and described nut II is covered with hemispherical cover; The hollow section passed for described high-strength prestressed bolt is provided with between tower drum flange and flange in the bottom.The present invention is applicable to wind power industry technical field of civil engineering.
Description
Technical field
The present invention relates to a kind of replaceable its construction method of pre-embedded bolt formula wind generation set concrete foundation.Be applicable to wind power industry technical field of civil engineering.
Background technology
Conventional wind generation set concrete foundation adopts the mode such as discharge ring, pre-embedded bolt to be connected with concrete foundation by upper column cylinder.Discharge ring connection cost is higher, and concrete foundation is divided into inside and outside two parts by discharge ring steel cylinder, and flange in the bottom is comparatively large to concrete flush shear force, and leveling etc. are all more difficult when basic run-off the straight.Pre-embedded bolt connection cost is lower, and bolt and concrete connect, and grouting leveling is easier to, but in traditional pre-embedded bolt structure, difficulty changed by bolt.
Summary of the invention
The technical problem to be solved in the present invention is: for above-mentioned Problems existing, provides a kind of replaceable pre-embedded bolt formula wind generation set concrete foundation, so that bolt is changed and leveling convenience, is intended to simplify overall structure, convenient construction.
Another technical problem that the present invention will solve is: provide a kind of construction method implementing the replaceable pre-embedded bolt formula wind generation set concrete foundation of convenient and swift, effective reduction of erection time.
The technical solution adopted in the present invention is: a kind of replaceable pre-embedded bolt formula wind generation set concrete foundation, concrete foundation is installed tower cylinder, it is characterized in that: described tower cylinder is connected with the flange in the bottom be embedded in advance in concrete foundation through tower drum flange, removable double high-strength prestressed bolt with concrete foundation, wherein high-strength prestressed bolt upper end adopts nut I and tower drum flange to fix, high-strength prestressed bolt lower end connecting welding is fixed on the nut II of flange in the bottom lower surface, and described nut II is covered with hemispherical cover; The hollow section passed for described high-strength prestressed bolt is provided with between tower drum flange and flange in the bottom.
Enclose between described tower drum flange and concrete foundation, along tower cylinder one and be evenly provided with 3 groups of wedges for the leveling of tower cylinder, between tower drum flange bottom surface and base concrete end face, pour into high-strength mortar.
Described high-strength prestressed bolt head makes tabular.
Described hemispherical cover is hemispherical steel cage or hemispherical UPVC cover; Described hollow section is UPVC pipe.
A construction method for replaceable pre-embedded bolt formula wind generation set concrete foundation, is characterized in that step is as follows:
A, in flange in the bottom lower surface correspond to each bolt hole WELD NUTS II, nut II is installed hemispherical cover;
B, by engine request concreting basis, and pre-buried through processing the flange in the bottom processed, the pre-buried hollow section of each bolt hole of corresponding flange in the bottom in concrete foundation, this hollow section is vertically arranged, lower termination flange in the bottom upper surface, upper end is exposed to concrete foundation end face;
C, meet after requirement of strength until concrete foundation, the wedge being used for leveling is set at concrete foundation end face, tower cylinder is installed, each bolt hole of the tower drum flange of tower cylinder lower end and hollow section one_to_one corresponding after leveling;
D, between tower drum flange bottom surface and base concrete end face, pour into high-strength mortar;
E, in each bolt hole the high-strength prestressed bolt of plug-in mounting, successively through tower drum flange, hollow section and flange in the bottom, and be threaded with nut II;
Nut I is installed in f, high-strength prestressed bolt upper end, and by nut I pair of bolt Shi Hanzhang.
The invention has the beneficial effects as follows: 1) high-strength prestressed bolt has convertibility, when reaching fatigue design year in limited time, replaceable all high-strength prestressed bolts, improving overall security; 2) adopt high-strength prestressed bolt can reduce concrete consumption, and increase the punch resistant capability of structure; 3) adopt wedge to carry out leveling, and pour into high-strength mortar, easy to operate, Stability Analysis of Structures is reliable; 4) convenient and quick construction of the present invention, the effectively reduction of erection time, reduce engineering and drop into.
Accompanying drawing explanation
Fig. 1 is elevational schematic view of the present invention.
Fig. 2 is floor map of the present invention.
Fig. 3 is I-I sectional view of Fig. 2.
Fig. 4 is the structural representation of one group of wedge in the present invention.
Detailed description of the invention
As shown in Fig. 1 ~ Fig. 3, load is passed to ground by concrete foundation 1 by tower of wind generating set cylinder 6, tower cylinder 6 with between concrete foundation by double high-strength prestressed bolt 3 by tower drum flange 5 with corresponding be embedded in advance in concrete foundation 1 flange in the bottom 4 be connected.High-strength prestressed bolt 3 upper end through tower drum flange 5, and through nut I 10 be fixed on tower drum flange 5(wherein nut I 10 be placed in tower drum flange 5 upper surface); Bolt lower end through flange in the bottom 4, and is threaded with the nut II 11 being fixedly welded on flange in the bottom 4 lower surface, and the hemispherical cover 8 adopting the materials such as UPVC to make outside nut II in this example is by nut II, bolt and concrete separating.By nut I 10 pairs of bolt Shi Hanzhang in the present embodiment.Arrange hollow section 9 between flange in the bottom 4 and tower drum flange 5, adopt UPVC pipe, for the high-strength prestressed bolt 3 of plug-in mounting in hollow section, this hollow section, by high-strength prestressed bolt 3 and periphery concrete separating, is convenient to Shi Hanzhang.
Turn carrying out basic leveling by 3 groups of wedges 7 and bolt between concrete foundation 1 cushion cap end face, tower drum flange 5 bottom surface, 3 groups of wedges 7 are arranged along tower cylinder even circumferential.Often organize wedge 7 to form by about two pieces superimposed two wedges 7, see Fig. 4.After tower drum flange installation accuracy meets the demands, between tower drum flange 5 bottom surface and concrete foundation 1 end face, pour into high-strength mortar 2.
In the present embodiment, tabular is made in high-strength prestressed bolt 3 upper end, if later stage high-strength prestressed bolt 3 reach application life the time limit need change bolt time, the flat place of its head can be turned, by root change bolt.
The concrete construction method of the present embodiment is as follows:
A, in flange in the bottom 4 lower surface correspond to each bolt hole (two circle, WELD NUTS II 11 as shown in Figure 2), nut II 11 is installed hemispherical cover 8, is covered by nut II;
B, by engine request concreting basis 1, and pre-buried through processing the flange in the bottom 4 processed, the pre-buried hollow section 9 of each bolt hole of corresponding flange in the bottom 4 in concrete foundation 1, this hollow section is vertically arranged, lower end connects flange in the bottom 4 upper surface, and upper end is exposed to concrete foundation 1 end face;
C, after concrete foundation 1 meets requirement of strength, arrange at concrete foundation 1 end face and be used for the wedge 7 of leveling, tower cylinder 6 is installed, the bolt hole of tower cylinder 6 lower end tower drum flange 5 and hollow section 9 one_to_one corresponding after leveling;
D, between tower drum flange 5 bottom surface and base concrete 1 end face, pour into high-strength mortar 2;
E, in each bolt hole the high-strength prestressed bolt 3 of plug-in mounting, successively through tower drum flange 5, hollow section 9 and flange in the bottom 4, bolt lower end is threaded with nut II 11;
Nut I 10 is installed, by nut I 10 pairs of bolt Shi Hanzhang in f, high-strength prestressed bolt 3 upper end.
Claims (4)
1. a replaceable pre-embedded bolt formula wind generation set concrete foundation, concrete foundation (1) is upper installs tower cylinder (6), it is characterized in that: described tower cylinder (6) and concrete foundation (1) are through tower drum flange (5), removable double high-strength prestressed bolt (3) is connected with the flange in the bottom (4) be embedded in advance in concrete foundation (1), wherein high-strength prestressed bolt (3) upper end adopts nut I (10) to fix with tower drum flange (5), high-strength prestressed bolt (3) lower end connecting welding is fixed on the nut II (11) of flange in the bottom (4) lower surface, described nut II (11) is covered with hemispherical cover (8), the hollow section (9) passed for described high-strength prestressed bolt (3) is provided with between tower drum flange (5) and flange in the bottom (4),
Enclose between described tower drum flange (5) and concrete foundation (1), along tower cylinder (6) and be evenly provided with 3 groups of wedges for the leveling of tower cylinder (7), between tower drum flange bottom surface and concrete foundation end face, pour into high-strength mortar (2).
2. replaceable pre-embedded bolt formula wind generation set concrete foundation according to claim 1, is characterized in that: described high-strength prestressed bolt (3) head makes tabular.
3. replaceable pre-embedded bolt formula wind generation set concrete foundation according to claim 1, is characterized in that: described hemispherical cover (8) is hemispherical steel cage or hemispherical UPVC cover; Described hollow section (9) is UPVC pipe.
4. a construction method for replaceable pre-embedded bolt formula wind generation set concrete foundation according to claim 1, is characterized in that step is as follows:
A, correspond to each bolt hole WELD NUTS II (11) in flange in the bottom (4) lower surface, nut II (11) is upper installs hemispherical cover (8);
B, by engine request concreting basis (1), and it is pre-buried through processing the flange in the bottom (4) processed in concrete foundation (1), the pre-buried hollow section of each bolt hole (9) of corresponding flange in the bottom (4), this hollow section is vertically arranged, lower termination flange in the bottom (4) upper surface, upper end is exposed to concrete foundation (1) end face;
C, after concrete foundation (1) meets requirement of strength, the wedge (7) being used for leveling is set at concrete foundation (1) end face, tower cylinder (6) is installed, each bolt hole of the tower drum flange (5) of tower cylinder (6) lower end and hollow section (9) one_to_one corresponding after leveling;
D, between tower drum flange (5) bottom surface and concrete foundation (1) end face, pour into high-strength mortar (2);
E, in each bolt hole the high-strength prestressed bolt of plug-in mounting (3), successively through tower drum flange (5), hollow section (9) and flange in the bottom (4), and be threaded with nut II (11);
Nut I (10) is installed in f, high-strength prestressed bolt (3) upper end, and by nut I (10) to bolt Shi Hanzhang.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310383408.7A CN103422512B (en) | 2013-08-29 | 2013-08-29 | Replaceable pre-embedded bolt formula wind generation set concrete foundation and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310383408.7A CN103422512B (en) | 2013-08-29 | 2013-08-29 | Replaceable pre-embedded bolt formula wind generation set concrete foundation and construction method thereof |
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| CN103422512A CN103422512A (en) | 2013-12-04 |
| CN103422512B true CN103422512B (en) | 2016-01-27 |
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| CN103774687A (en) * | 2014-01-22 | 2014-05-07 | 深圳市海能通信股份有限公司 | Single-pipe tower prefabricated spiral steel pipe pile foundation |
| CN103953058B (en) * | 2014-03-07 | 2018-04-10 | 江苏金海新能源科技有限公司 | Coaxial steel cylinder basis |
| WO2015158352A1 (en) * | 2014-04-16 | 2015-10-22 | Vestas Wind Systems A/S | A foundation for a wind turbine |
| CN104612455B (en) * | 2015-03-04 | 2017-10-13 | 陈宝民 | Blower fan concrete tower and the integral structure on basis |
| CN105155571B (en) * | 2015-08-20 | 2017-02-01 | 江苏金海新能源科技有限公司 | Replaceable prestressed anchor bolt assembly and mounting and replacement construction method thereof |
| CN106626048A (en) * | 2016-10-08 | 2017-05-10 | 霍尔果斯新国金新能源科技有限公司 | Grouting mold and method for wind driven generator tower drum and foundation |
| CN109797787A (en) * | 2019-03-06 | 2019-05-24 | 中国电建集团北京勘测设计研究院有限公司 | A kind of levelling device adjusting the relative settlement of runtime wind driven generator base |
| CN112982471A (en) * | 2021-02-26 | 2021-06-18 | 中国能源建设集团江苏省电力设计院有限公司 | Connecting joint of crossing tower and foundation and construction method thereof |
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| JPS59145836A (en) * | 1983-02-10 | 1984-08-21 | Nippon Steel Corp | Exposed fixing type steel column leg |
| CN201747544U (en) * | 2010-08-26 | 2011-02-16 | 华锐风电科技(集团)股份有限公司 | Mounting pedestal of wind-driven generator and wind-driven generator |
| CN202073113U (en) * | 2011-04-07 | 2011-12-14 | 华锐风电科技(集团)股份有限公司 | Foundation bolt base post-grouting supporting device |
| CN102628277A (en) * | 2012-04-18 | 2012-08-08 | 中国水电顾问集团华东勘测设计研究院 | Transition section-free monopile offshore wind turbine foundation structure |
| CN102758445A (en) * | 2011-04-27 | 2012-10-31 | 华锐风电科技(集团)股份有限公司 | Foundation leveling device, foundation assembly and foundation forming method for wind driven generator tower |
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2013
- 2013-08-29 CN CN201310383408.7A patent/CN103422512B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59145836A (en) * | 1983-02-10 | 1984-08-21 | Nippon Steel Corp | Exposed fixing type steel column leg |
| CN201747544U (en) * | 2010-08-26 | 2011-02-16 | 华锐风电科技(集团)股份有限公司 | Mounting pedestal of wind-driven generator and wind-driven generator |
| CN202073113U (en) * | 2011-04-07 | 2011-12-14 | 华锐风电科技(集团)股份有限公司 | Foundation bolt base post-grouting supporting device |
| CN102758445A (en) * | 2011-04-27 | 2012-10-31 | 华锐风电科技(集团)股份有限公司 | Foundation leveling device, foundation assembly and foundation forming method for wind driven generator tower |
| CN102628277A (en) * | 2012-04-18 | 2012-08-08 | 中国水电顾问集团华东勘测设计研究院 | Transition section-free monopile offshore wind turbine foundation structure |
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| CN103422512A (en) | 2013-12-04 |
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