CN104929148A - Reverse installation reinforcement system and method of wind power generation tower foundation ring foundation - Google Patents
Reverse installation reinforcement system and method of wind power generation tower foundation ring foundation Download PDFInfo
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- CN104929148A CN104929148A CN201510388534.0A CN201510388534A CN104929148A CN 104929148 A CN104929148 A CN 104929148A CN 201510388534 A CN201510388534 A CN 201510388534A CN 104929148 A CN104929148 A CN 104929148A
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Abstract
The invention discloses a reverse installation reinforcement system of a wind power generation tower foundation ring foundation. The reverse installation reinforcement system comprises a draught fan tower cylinder (1) and the foundation ring foundation (2). The foundation ring foundation (2) comprises a concrete foundation (3) and a foundation ring (4). The lower end of the foundation ring (4) is embedded in the concrete foundation (3). An upper flange (5) is arranged at the upper end of the foundation ring (4). A draught fan tower cylinder bottom section lower flange (6) is arranged at the lower end of the draught fan tower cylinder (1). Brackets (7) are welded to the two sides of the draught fan tower cylinder bottom section lower flange (6). Hydraulic jacks (15) are arranged below the brackets (7). A joint piece ejecting plate (8) is inserted between the upper flange (5) and the draught fan tower cylinder bottom section lower flange (6) and is supported by the top face of the concrete foundation (3) through a steel support. The foundation ring (4) and the draught fan tower cylinder (1) are connected through a replacement high-strength bolt (9). By means of the reverse installation reinforcement system, the anti-cracking and anti-fatigue capacity of the foundation ring can be improved, and the problem that the foundation ring foundation cracks due to fatigue can be solved.
Description
Technical field
The invention belongs to generation power foundation of wind power reinforcing technique field, be specifically related to a kind of tower cylinder upside-down mounting hardened system and reinforcement means thereof of generation power foundation of wind power cyclic group plinth.
Background technology
Current discharge ring basis at home wind-power market has certain occupation rate.But be subject to the restriction of embeded depth of foundation, discharge ring buried foundation is excessively shallow, junction rigidity is suddenlyd change, and Path of Force Transfer is discontinuous, and the bending resistance that discharge ring lateral force provides is more limited.Under high Zhou Fanfu Fatigue Load, easily there is cracking destruction in basis.Current existing recovery technique is that this processing method temporarily can only solve problem of Cracking directly to the grouting of basic crack place, and under fatigue loading, the stressed zone concentrated still can generate crack in a short time again.Propose a kind of hardened system and the reinforcement means thereof that fundamentally can solve discharge ring basis fatigue failure for this reason.
Summary of the invention
Goal of the invention: the object of the invention is to overcome the deficiencies in the prior art, there is provided a kind of generation power foundation of wind power cyclic group plinth tower cylinder upside-down mounting hardened system and reinforcement means thereof, the present invention fundamentally can solve discharge ring basis produces cracking destruction problem because of tired.
Technical scheme: in order to realize above object, the technical scheme that the present invention takes is:
A kind of tower cylinder upside-down mounting hardened system of generation power foundation of wind power cyclic group plinth, this system comprises: blower fan tower barrel and discharge ring basis, discharge ring basis comprises concrete foundation and discharge ring, in Transducers Embedded in Concrete basis, discharge ring lower end, the upper end of discharge ring is provided with upper flange, blower fan tower barrel lower end is provided with blower fan tower barrel coxopodite lower flange, blower fan tower barrel coxopodite lower flange both sides are welded with bracket, below bracket, hydraulic jack is installed, adaptor top board is inserted with between the upper flange of discharge ring and the blower fan tower barrel coxopodite lower flange of blower fan tower barrel lower end, one is supported by vertical steel below adaptor top board, bracing members two, bracing members three and support baseboard are bearing in concrete foundation end face, discharge ring through the upper flange of discharge ring upper end, adaptor top board and blower fan tower barrel coxopodite lower flange, thus is connected with blower fan tower barrel by displacement high-strength bolt.
Preferably, the tower cylinder upside-down mounting hardened system of above-described generation power foundation of wind power cyclic group plinth, below described adaptor top board and the inside and outside both sides of discharge ring are provided with reinforced concrete circle beam.
Preferably, the tower cylinder upside-down mounting hardened system of above-described generation power foundation of wind power cyclic group plinth, described bracing members one and bracing members two are respectively 12, and bracing members one and bracing members two bottom are positioned on support baseboard.
The invention provides a kind of tower cylinder upside-down mounting reinforcement means of generation power foundation of wind power cyclic group plinth, it comprises the following steps:
A. system grouting is adopted to repair the crack on discharge ring basis;
B. the adpting flange of blower fan tower barrel and discharge ring is radially evenly divided into I, II, III, IV, V, VI 6 reinforcing sections in the plane:
Unscrew the high-strength bolt between connecting fan tower cylinder coxopodite lower flange and upper flange, weld bracket respectively at the two ends of the blower fan tower barrel coxopodite lower flange of corresponding II, IV, VI 3 sections and inside and outside both sides, below each bracket, a hydraulic jack is installed;
C. by after hydraulic jack synchronization of jacking up blower fan tower barrel to certain altitude, high-strength bolt between the blower fan tower barrel coxopodite lower flange of dismounting I, III, V 3 sections and upper flange, then below the blower fan tower barrel coxopodite lower flange of I, III, V 3 sections, three sections of adaptor top boards are inserted, then with replacing the upper flange of high-strength bolt through discharge ring upper end, adaptor top board and blower fan tower barrel coxopodite lower flange, then vertical steel being installed below adaptor top board and supporting one;
D. hydraulic jack is removed, high-strength bolt between the blower fan tower barrel coxopodite lower flange of dismounting II, IV, VI 3 sections and upper flange, three sections of adaptor top boards are inserted below the blower fan tower barrel coxopodite lower flange of II, IV, VI 3 sections, then with replacing the upper flange of high-strength bolt through discharge ring upper end, adaptor top board and blower fan tower barrel coxopodite lower flange, then vertical steel being installed below adaptor top board and supporting two;
E. below the adaptor top board of I, II, III, IV, V, VI each section, install vertical steel support three, then the symmetrical stretch-draw displacement in interval high-strength bolt is to the design pretension of half;
F. below adaptor top board, the interior outside assembling reinforcement respectively of discharge ring, support shuttering, concreting, obtained reinforced concrete circle beam;
G., after concrete strength reaches design load, stretch-draw displacement high-strength bolt, to designing pretension, completes reconnecting of discharge ring and blower fan tower barrel, makes discharge ring tension, base concrete pressurized, realize the reinforcing of generation power foundation of wind power cyclic group plinth.
Preferably, the tower cylinder upside-down mounting reinforcement means of above-described generation power foundation of wind power cyclic group plinth, bracket amounts to 12.
Compared to the prior art the present invention has following beneficial effect:
1. the present invention replaces high-strength bolt by stretch-draw, flange at the bottom of discharge ring and blower fan tower barrel is disengaged, to change by curved as tension, make adaptor top board by curved, bracing members pressurized, reinforced concrete circle beam pressurized, make basis be subject to larger compressive stress, anti-crack ability improves greatly.
2. when blower fan tower barrel coxopodite is subject to tension and compression reversed fatigue effect T, according to the operating principle of high-strength bolt, high-strength bolt tension variations amplitude is only 1/3 ~ 1/4 of T, after this pattern rock reinforcement, the tension variations value of discharge ring is identical with the tension variations value of high-strength bolt, relative original structure internal force width is reduced to 1/3 ~ 1/4, very favourable to discharge ring antifatigue.
3. because the working load at blower fan column foot place is 1/3 ~ 1/4 of ultimate load, and the internal force change amplitude of discharge ring is reduced to 1/3 ~ 1/4 of working load after this hardened system is reinforced, discharge ring stress amplitude under fatigue effect power is only 1/9 ~ 1/16 of ultimate strength, substantially tensile strength is less than, so concrete can not in opening and closing under course under cyclic loading, very favourable to the antifatigue of base concrete.
The each component materials of the present invention is common, simple structure, easy construction, less to original structure damage, fundamentally solve discharge ring basis and produce the problem ftractureed because of tired.
Accompanying drawing explanation
Fig. 1 is the plane structure schematic diagram of the tower cylinder upside-down mounting hardened system of a kind of generation power foundation of wind power cyclic group plinth provided by the invention;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is for reinforcing front discharge ring foundation structure sectional drawing;
Fig. 4 is that the present invention reinforces the first process, unscrews the sectional drawing of former high-strength bolt, welding bracket, installation jack (II, IV, VI section);
Fig. 5 is that the present invention reinforces the second process, jacking tower cylinder, dismantles former high-strength bolt, insertion switching steel plate, installs displacement bolt and vertical steel supports the sectional drawing of one (I, III, V section);
Fig. 6 is that the present invention reinforces the 3rd process, the sectional drawing of remove jack, dismantle former high-strength bolt, steel plate is transferred in insertion, install displacement bolt and vertical steel support two (II, IV, VI sections).
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the present invention further.
Embodiment 1
As depicted in figs. 1 and 2, a kind of tower cylinder upside-down mounting hardened system of generation power foundation of wind power cyclic group plinth, this system comprises: blower fan tower barrel 1 and discharge ring basis 2, discharge ring basis 2 comprises concrete foundation 3 and discharge ring 4, in Transducers Embedded in Concrete basis, discharge ring 4 lower end 3, the upper end of discharge ring 4 is provided with upper flange 5, blower fan tower barrel 1 lower end is provided with blower fan tower barrel coxopodite lower flange 6, blower fan tower barrel coxopodite lower flange 6 both sides are welded with bracket 7, hydraulic jack 15 is installed below bracket 7, adaptor top board 8 is inserted with between the upper flange 5 of discharge ring 4 and the blower fan tower barrel coxopodite lower flange 6 of blower fan tower barrel 1 lower end, 1 are supported by vertical steel below adaptor top board 8, bracing members 2 11, bracing members 3 12 and support baseboard 13 are bearing in concrete foundation 3 end face, discharge ring 4 through the upper flange 5 of discharge ring 4 upper end, adaptor top board 8 and blower fan tower barrel coxopodite lower flange 6, thus is connected with blower fan tower barrel 1 by displacement high-strength bolt 9.
The tower cylinder upside-down mounting hardened system of above-described generation power foundation of wind power cyclic group plinth, below described adaptor the top board 8 and inside and outside both sides of discharge ring 4 are provided with reinforced concrete circle beam 14.
The tower cylinder upside-down mounting hardened system of above-described generation power foundation of wind power cyclic group plinth, described bracing members 1 and bracing members 2 11 are respectively 12, and bracing members 1 and bracing members 2 11 bottom are positioned on support baseboard 13.
Embodiment 2
As shown in Figures 3 to 6, a kind of tower cylinder upside-down mounting reinforcement means of generation power foundation of wind power cyclic group plinth, comprises the following steps:
A. system grouting is adopted to repair the crack on discharge ring basis 2;
B. the adpting flange of blower fan tower barrel 1 and discharge ring 4 is radially evenly divided into I, II, III, IV, V, VI 6 reinforcing sections in the plane:
Unscrew the high-strength bolt 16 between connecting fan tower cylinder coxopodite lower flange 6 and upper flange 5, weld bracket 7 respectively at the two ends of the blower fan tower barrel coxopodite lower flange 6 of corresponding II, IV, VI 3 sections and inside and outside both sides, below each bracket 7, a hydraulic jack 15 is installed;
C. by after hydraulic jack 15 synchronization of jacking up blower fan tower barrel 1 to certain altitude, high-strength bolt 16 between the blower fan tower barrel coxopodite lower flange 6 of dismounting I, III, V 3 sections and upper flange 5, then below the blower fan tower barrel coxopodite lower flange 6 of I, III, V 3 sections, three sections of adaptor top boards 8 are inserted, then with replacing the upper flange 5 of high-strength bolt 9 through discharge ring 4 upper end, adaptor top board 8 and blower fan tower barrel coxopodite lower flange 6, then vertical steel being installed below adaptor top board 8 and supporting 1;
D. hydraulic jack 15 is removed, high-strength bolt 16 between the blower fan tower barrel coxopodite lower flange 6 of dismounting II, IV, VI 3 sections and upper flange 5, three sections of adaptor top boards 8 are inserted below the blower fan tower barrel coxopodite lower flange 6 of II, IV, VI 3 sections, then with replacing the upper flange 5 of high-strength bolt 9 through discharge ring 4 upper end, adaptor top board 8 and blower fan tower barrel coxopodite lower flange 6, then vertical steel being installed below adaptor top board 8 and supporting 2 11;
E., vertical steel is installed below the adaptor top board 8 of I, II, III, IV, V, VI each section and supports 3 12, then the design pretension of the symmetrical stretch-draw displacement in interval high-strength bolt 9 to half;
F. below adaptor top board 8, the interior outside assembling reinforcement respectively of discharge ring 4, support shuttering, concreting, obtained reinforced concrete circle beam 14;
G., after concrete strength reaches design load, stretch-draw displacement high-strength bolt 9, to design pretension, completes reconnecting of discharge ring 4 and blower fan tower barrel 1, makes discharge ring tension, base concrete pressurized, realize the reinforcing of generation power foundation of wind power cyclic group plinth.
The tower cylinder upside-down mounting reinforcement means of above-described generation power foundation of wind power cyclic group plinth, bracket (7) amounts to 12.
The present invention is by stretch-draw displacement high-strength bolt 9, make discharge ring 4 tension, adaptor top board 8 by curved, bracing members 1, bracing members 2 11 and bracing members bracing members 3 12 pressurized, reinforced concrete circle beam 14 pressurized, make basis be subject to larger compressive stress, anti-crack ability improves greatly; The tension variations width of discharge ring 4 is made to be reduced to 1/3 ~ 1/4 of original structure, 1/9 ~ 1/16 of ultimate strength, very favourable to the antifatigue of discharge ring 4 and base concrete, fundamentally can solve discharge ring basis produces cracking problem because of tired.Achieve extraordinary technique effect.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. the tower cylinder upside-down mounting hardened system of a generation power foundation of wind power cyclic group plinth, it is characterized in that, this system comprises: blower fan tower barrel (1) and discharge ring basis (2), discharge ring basis (2) comprises concrete foundation (3) and discharge ring (4), in Transducers Embedded in Concrete basis, discharge ring (4) lower end (3), the upper end of discharge ring (4) is provided with upper flange (5), blower fan tower barrel (1) lower end is provided with blower fan tower barrel coxopodite lower flange (6), blower fan tower barrel coxopodite lower flange (6) both sides are welded with bracket (7), bracket (7) below is provided with hydraulic jack (15), adaptor top board (8) is inserted with between the upper flange (5) of discharge ring (4) and the blower fan tower barrel coxopodite lower flange (6) of blower fan tower barrel (1) lower end, adaptor top board (8) below supports one (10) by vertical steel, bracing members two (11), bracing members three (12) and support baseboard (13) are bearing in concrete foundation (3) end face, discharge ring (4) through the upper flange (5) of discharge ring (4) upper end, adaptor top board (8) and blower fan tower barrel coxopodite lower flange (6), thus is connected with blower fan tower barrel (1) by displacement high-strength bolt (9).
2. the tower cylinder upside-down mounting hardened system of generation power foundation of wind power cyclic group plinth according to claim 1, it is characterized in that, described adaptor top board (8) below and the inside and outside both sides of discharge ring (4) are provided with reinforced concrete circle beam (14).
3. the tower cylinder upside-down mounting hardened system of generation power foundation of wind power cyclic group plinth according to claim 1, it is characterized in that, described bracing members one (10) and bracing members two (11) are respectively 12, and bracing members one (10) and bracing members two (11) bottom are positioned on support baseboard (13).
4. a tower cylinder upside-down mounting reinforcement means for generation power foundation of wind power cyclic group plinth, is characterized in that, comprise the following steps:
A. system grouting is adopted to repair the crack on discharge ring basis (2);
B. the adpting flange of blower fan tower barrel (1) and discharge ring (4) is radially evenly divided into I, II, III, IV, V, VI 6 reinforcing sections in the plane:
Unscrew the high-strength bolt (16) between connecting fan tower cylinder coxopodite lower flange (6) and upper flange (5), weld bracket (7) respectively at the two ends of the blower fan tower barrel coxopodite lower flange (6) of corresponding II, IV, VI 3 sections and inside and outside both sides, in each bracket (7) below, a hydraulic jack (15) is installed;
C. by after hydraulic jack (15) synchronization of jacking up blower fan tower barrel (1) to certain altitude, dismounting I, III, high-strength bolt (16) between the blower fan tower barrel coxopodite lower flange (6) of V 3 sections and upper flange (5), then I, III, three sections of adaptor top boards (8) are inserted in blower fan tower barrel coxopodite lower flange (6) below of V 3 sections, then with the upper flange (5) of displacement high-strength bolt (9) through discharge ring (4) upper end, adaptor top board (8) and blower fan tower barrel coxopodite lower flange (6), then in adaptor top board (8) below, vertical steel is installed and supports one (10),
D. hydraulic jack (15) is removed, dismounting II, IV, high-strength bolt (16) between the blower fan tower barrel coxopodite lower flange (6) of VI 3 sections and upper flange (5), II, IV, three sections of adaptor top boards (8) are inserted in blower fan tower barrel coxopodite lower flange (6) below of VI 3 sections, then with the upper flange (5) of displacement high-strength bolt (9) through discharge ring (4) upper end, adaptor top board (8) and blower fan tower barrel coxopodite lower flange (6), then in adaptor top board (8) below, vertical steel is installed and supports two (11),
E. install vertical steel in adaptor top board (8) below of I, II, III, IV, V, VI each section and support three (12), then symmetrical stretch-draw displacement high-strength bolt (9) in interval is to the design pretension of half;
F. in adaptor top board (8) below, the interior outside assembling reinforcement respectively of discharge ring (4), support shuttering, concreting, obtained reinforced concrete circle beam (14);
G. after concrete strength reaches design load, stretch-draw displacement high-strength bolt (9) is to designing pretension, complete reconnecting of discharge ring (4) and blower fan tower barrel (1), make discharge ring tension, base concrete pressurized, realizes the reinforcing of generation power foundation of wind power cyclic group plinth.
5. the tower cylinder upside-down mounting reinforcement means of generation power foundation of wind power cyclic group plinth according to claim 4, is characterized in that, bracket (7) amounts to 12.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510388534.0A CN104929148B (en) | 2015-07-06 | 2015-07-06 | The upside-down mounting hardened system of generation power foundation of wind power ring group plinth and reinforcement means thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510388534.0A CN104929148B (en) | 2015-07-06 | 2015-07-06 | The upside-down mounting hardened system of generation power foundation of wind power ring group plinth and reinforcement means thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522261A (en) * | 2016-10-26 | 2017-03-22 | 国家电网公司 | Reinforcing structure and method of double-cement tower in coal gob area |
| CN106703068A (en) * | 2017-03-01 | 2017-05-24 | 北京建筑大学 | Concrete tower cylinder and foundation connecting mode |
| CN107013416A (en) * | 2017-04-29 | 2017-08-04 | 中国能源建设集团安徽电力建设第工程有限公司 | A kind of installation method of blower fan tower barrel |
| CN108755740A (en) * | 2018-08-28 | 2018-11-06 | 同济大学建筑设计研究院(集团)有限公司 | A kind of seif-citing rate formula generation power foundation of wind power ring group plinth hardened system and reinforcement means |
| CN109113089A (en) * | 2018-10-19 | 2019-01-01 | 吴修玲 | It is a kind of to wave damping device with what basic ring type basis connected applied to Latticed Towers pedestal |
| CN110004999A (en) * | 2019-05-08 | 2019-07-12 | 湖南科技大学 | Basic ring type blower foundation integrative consolidation device and reinforcement means |
| CN113026796A (en) * | 2021-03-17 | 2021-06-25 | 上海久坚加固科技股份有限公司 | Foundation reinforcing structure and method for foundation of wind power generation tower |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8322093B2 (en) * | 2008-06-13 | 2012-12-04 | Tindall Corporation | Base support for wind-driven power generators |
| CN103243746A (en) * | 2013-05-20 | 2013-08-14 | 四川谦泰仁投资管理有限公司 | Wind generator foundation ring precision calibrating system and construction method thereof |
| CN103967041A (en) * | 2014-05-21 | 2014-08-06 | 中冶天工集团有限公司 | Wind turbine foundation ring construction method |
| CN203782740U (en) * | 2014-04-24 | 2014-08-20 | 湘电风能有限公司 | Combined type foundation ring of wind generating set |
-
2015
- 2015-07-06 CN CN201510388534.0A patent/CN104929148B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8322093B2 (en) * | 2008-06-13 | 2012-12-04 | Tindall Corporation | Base support for wind-driven power generators |
| CN103243746A (en) * | 2013-05-20 | 2013-08-14 | 四川谦泰仁投资管理有限公司 | Wind generator foundation ring precision calibrating system and construction method thereof |
| CN203782740U (en) * | 2014-04-24 | 2014-08-20 | 湘电风能有限公司 | Combined type foundation ring of wind generating set |
| CN103967041A (en) * | 2014-05-21 | 2014-08-06 | 中冶天工集团有限公司 | Wind turbine foundation ring construction method |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522261A (en) * | 2016-10-26 | 2017-03-22 | 国家电网公司 | Reinforcing structure and method of double-cement tower in coal gob area |
| CN106703068A (en) * | 2017-03-01 | 2017-05-24 | 北京建筑大学 | Concrete tower cylinder and foundation connecting mode |
| CN107013416A (en) * | 2017-04-29 | 2017-08-04 | 中国能源建设集团安徽电力建设第工程有限公司 | A kind of installation method of blower fan tower barrel |
| CN108755740A (en) * | 2018-08-28 | 2018-11-06 | 同济大学建筑设计研究院(集团)有限公司 | A kind of seif-citing rate formula generation power foundation of wind power ring group plinth hardened system and reinforcement means |
| CN108755740B (en) * | 2018-08-28 | 2023-08-04 | 同济大学建筑设计研究院(集团)有限公司 | Self-stress type wind power generation tower foundation ring foundation reinforcing system and reinforcing method |
| CN109113089A (en) * | 2018-10-19 | 2019-01-01 | 吴修玲 | It is a kind of to wave damping device with what basic ring type basis connected applied to Latticed Towers pedestal |
| CN110004999A (en) * | 2019-05-08 | 2019-07-12 | 湖南科技大学 | Basic ring type blower foundation integrative consolidation device and reinforcement means |
| CN113026796A (en) * | 2021-03-17 | 2021-06-25 | 上海久坚加固科技股份有限公司 | Foundation reinforcing structure and method for foundation of wind power generation tower |
| CN113026796B (en) * | 2021-03-17 | 2023-12-15 | 上海久坚加固科技股份有限公司 | Wind power generation tower foundation ring foundation reinforcing structure and method |
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| CN104929148B (en) | 2017-01-04 |
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