CN104929148B - The upside-down mounting hardened system of generation power foundation of wind power ring group plinth and reinforcement means thereof - Google Patents

The upside-down mounting hardened system of generation power foundation of wind power ring group plinth and reinforcement means thereof Download PDF

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Publication number
CN104929148B
CN104929148B CN201510388534.0A CN201510388534A CN104929148B CN 104929148 B CN104929148 B CN 104929148B CN 201510388534 A CN201510388534 A CN 201510388534A CN 104929148 B CN104929148 B CN 104929148B
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blower fan
foundation
fan tower
tower barrel
foundation ring
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CN104929148A (en
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何桂荣
马逸鹄
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JIANGSU JINHAI NEW ENERGY TECHNOLOGY Co Ltd
Architecture Design and Research Institute of Tongji University Group Co Ltd
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JIANGSU JINHAI NEW ENERGY TECHNOLOGY Co Ltd
Architecture Design and Research Institute of Tongji University Group Co Ltd
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Abstract

The invention discloses the tower upside-down mounting hardened system of a kind of generation power foundation of wind power ring group plinth, it includes blower fan tower barrel (1) and foundation ring basis (2), foundation ring basis (2) includes concrete foundation (3) and foundation ring (4), in foundation ring (4) lower end Transducers Embedded in Concrete basis (3), foundation ring (4) upper end 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), there is hydraulic jack (15) bracket (7) lower section, adaptor top board (8) is inserted between upper flange (5) and blower fan tower barrel coxopodite lower flange (6), adaptor top board (8) is bearing in concrete foundation (3) end face by bracing members;Foundation ring (4) and blower fan tower barrel (1) are connected by displacement high-strength bolt (9).The present invention can make foundation ring cracking resistance anti-fatigue ability improve, it is possible to resolve the problem of Cracking that foundation ring basis produces because of fatigue.

Description

The upside-down mounting hardened system of generation power foundation of wind power ring group plinth and reinforcement means thereof
Technical field
The invention belongs to generation power foundation of wind power reinforcement technique field, be specifically related to a kind of generation power foundation of wind power ring The tower upside-down mounting hardened system on basis and reinforcement means thereof.
Background technology
Foundation ring basis wind-power market at home has certain occupation rate at present.But, by embedded depth of foundation Restriction, foundation ring buried foundation is the most shallow, and junction rigidity is suddenlyd change, and Path of Force Transfer is discontinuous, foundation ring side force The bending resistance ratio provided is relatively limited.Under high Zhou Fanfu Fatigue Load, easily there is cracking destruction in basis.Mesh Front existing recovery technique is directly to be in the milk at basic crack, and this processing method can only temporarily solve problem of Cracking, Under fatigue load, the stressed zone of concentration still can generate crack the most again.Proposing one for this can Fundamentally solve hardened system and the reinforcement means thereof of the fatigue rupture of foundation ring basis.
Summary of the invention
Goal of the invention: it is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of generation power foundation of wind power Ring group plinth tower upside-down mounting hardened system and reinforcement means thereof, the present invention can fundamentally solve foundation ring basis because of fatigue And the problem producing cracking destruction.
Technical scheme: in order to realize object above, the technical scheme that the present invention takes is:
The tower upside-down mounting hardened system of a kind of generation power foundation of wind power ring group plinth, this system includes: blower fan tower barrel and base Plinth ring group plinth, foundation ring basis includes concrete foundation and foundation ring, in Transducers Embedded in Concrete basis, foundation ring lower end, The upper end of foundation ring is provided with upper flange, and 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, are provided with hydraulic jack below bracket, the upper flange of foundation ring and blower fan tower barrel It is inserted with adaptor top board between the blower fan tower barrel coxopodite lower flange of lower end, is propped up by vertical steel below adaptor top board Support one, bracing members two, bracing members three and support baseboard are bearing in concrete foundation end face;Displacement high-strength bolt passes The upper flange of foundation ring upper end, adaptor top board and blower fan tower barrel coxopodite lower flange, thus by foundation ring and blower fan tower Cylinder connects.
Preferably, the tower upside-down mounting hardened system of above-described generation power foundation of wind power ring group plinth, described Adaptor top board below and foundation ring inside and outside reinforced concrete circle beam is installed.
Preferably, the tower upside-down mounting hardened system of above-described generation power foundation of wind power ring group plinth, described Bracing members one and bracing members two be respectively 12, bracing members one and bracing members two bottom are positioned on support baseboard.
The present invention provides the tower upside-down mounting reinforcement means of a kind of generation power foundation of wind power ring group plinth, and it comprises the following steps:
A. grouting method is used to repair the crack on foundation ring basis;
B. by the most radially even for the adpting flange of blower fan tower barrel and foundation ring being divided into I, II, III, IV, V, VI 6 reinforcing sections:
Unscrew the high-strength bolt between connecting fan tower coxopodite lower flange and upper flange, corresponding II, IV, VI 3 The two ends of the blower fan tower barrel coxopodite lower flange of individual section and inside and outside be respectively welded bracket, below each bracket pacify Fill a hydraulic jack;
C., after by hydraulic jack synchronization of jacking up blower fan tower barrel to certain altitude, I, III, V 3 sections are dismantled Blower fan tower barrel coxopodite lower flange and upper flange between high-strength bolt, then at the wind of I, III, V 3 sections Three sections of adaptor top boards are inserted, then with displacement high-strength bolt through foundation ring upper end below machine tower coxopodite lower flange Upper flange, adaptor top board and blower fan tower barrel coxopodite lower flange, then below adaptor top board install vertical steel Support one;
D. hydraulic jack, the blower fan tower barrel coxopodite lower flange of II, IV, VI 3 sections of dismounting and upper flange are removed Between high-strength bolt, below the blower fan tower barrel coxopodite lower flange of II, IV, VI 3 sections insert three sections of switchings Part top board, then with displacement high-strength bolt through at the bottom of the upper flange of foundation ring upper end, adaptor top board and blower fan tower barrel Joint lower flange, then installs vertical steel below adaptor top board and supports two;
E., vertical steel is installed below the adaptor top board of I, II, III, IV, V, VI each section and supports three, Then the symmetrical stretch-draw in interval displacement high-strength bolt is to the design pretension of half;
F. below adaptor top board, the assembling reinforcement respectively of the interior outside of foundation ring, support shuttering, casting concrete, Prepare reinforced concrete circle beam;
G., after concrete strength reaches design load, stretch-draw displacement high-strength bolt, to designing pretension, completes foundation ring With the reconnect of blower fan tower barrel, make foundation ring tension, base concrete pressurized, it is achieved generation power foundation of wind power ring The reinforcing on basis.
Preferably, the tower upside-down mounting reinforcement means of above-described generation power foundation of wind power ring group plinth, bracket Amount to 12.
Compared to the prior art the present invention has the advantages that
1. the present invention replaces high-strength bolt by stretch-draw, makes flange at the bottom of foundation ring and blower fan tower barrel disengage, changes and be subject to Curved for tension, make adaptor top board by curved, bracing members pressurized, reinforced concrete circle beam pressurized, make basis by relatively Big compressive stress, anti-crack ability is greatly improved.
2. when blower fan tower barrel coxopodite is by tension and compression reversed fatigue effect T, according to the operation principle of high-strength bolt, high Strength bolt tension variations amplitude is only the 1/3~1/4 of T, the tension variations value of foundation ring and height after this system reinforcement The tension variations value of strength bolt is identical, and relative original structure internal force width is reduced to 1/3~1/4, to foundation ring resisting fatigue Highly beneficial.
3. owing to the work load at blower fan column foot is ultimate load 1/3~1/4, and after this hardened system is reinforced The internal force change amplitude of foundation ring is reduced to the 1/3~1/4 of work load, and foundation ring is stress amplitude under fatigue effect power Being only the 1/9~1/16 of ultimate strength, substantially less than tensile strength, so concrete will not be in course under cyclic loading Lower opening and closing, highly beneficial to the resisting fatigue of base concrete.
The each component materials of the present invention is common, simple structure, easy construction, less, fundamentally to original structure damage Solve the problem that foundation ring basis produces cracking because of tired.
Accompanying drawing explanation
The planar junction of the tower upside-down mounting hardened system of a kind of generation power foundation of wind power ring group plinth that Fig. 1 provides for the present invention Structure schematic diagram;
Fig. 2 is the A-A profile of Fig. 1;
Fig. 3 is foundation ring base structure profile before reinforcing;
Fig. 4 is that the present invention reinforces the first process, unscrew former high-strength bolt, welding bracket, install jack (II, IV, VI section) profile;
Fig. 5 is that the present invention reinforces the second process, jacking tower, dismantles former high-strength bolt, insertion switching steel plate, installation Displacement bolt and vertical steel support the profile of one (I, III, V section);
Fig. 6 is that the present invention reinforces the 3rd process, removes jack, dismantles former high-strength bolt, insertion switching steel plate, peace Device changes bolt and the profile of vertical steel support two (II, IV, VI sections).
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.
Embodiment 1
As depicted in figs. 1 and 2, the tower upside-down mounting hardened system of a kind of generation power foundation of wind power ring group plinth, this system Including: blower fan tower barrel 1 and foundation ring basis 2, foundation ring basis 2 includes concrete foundation 3 and foundation ring 4, base In Transducers Embedded in Concrete basis, plinth ring 4 lower end 3, the upper end of foundation ring 4 is provided with upper flange 5, blower fan tower barrel 1 lower end Being 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, below bracket 7 Hydraulic jack 15 is installed, the upper flange 5 of foundation ring 4 and the blower fan tower barrel coxopodite purgation of blower fan tower barrel 1 lower end It is inserted with adaptor top board 8 between blue 6, supports 1 by vertical steel below adaptor top board 8, bracing members two 11, bracing members 3 12 and support baseboard 13 are bearing in concrete foundation 3 end face;Displacement high-strength bolt 9 is through base The upper flange 5 of plinth ring 4 upper end, adaptor top board 8 and blower fan tower barrel coxopodite lower flange 6, thus by foundation ring 4 He Blower fan tower barrel 1 connects.
The tower upside-down mounting hardened system of above-described generation power foundation of wind power ring group plinth, described adaptor top board 8 Inside and outside lower section and foundation ring 4, reinforced concrete circle beam 14 is installed.
The tower upside-down mounting hardened system of above-described generation power foundation of wind power ring group plinth, described bracing members 1 He Bracing members 2 11 is 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, the tower upside-down mounting reinforcement means of a kind of generation power foundation of wind power ring group plinth, including with Lower step:
A. grouting method is used to repair the crack on foundation ring basis 2;
B. by the most radially even for the adpting flange of blower fan tower barrel 1 and foundation ring 4 being divided into I, II, III, IV, V, VI 6 reinforcing sections:
Unscrew the high-strength bolt 16 between connecting fan tower coxopodite lower flange 6 and upper flange 5, corresponding II, IV, The two ends of the blower fan tower barrel coxopodite lower flange 6 of VI 3 sections and inside and outside be respectively welded bracket 7, each cattle One hydraulic jack 15 is installed below lower limb 7;
C. by, after hydraulic jack 15 synchronization of jacking up blower fan tower barrel 1 to certain altitude, dismantling I, III, V 3 High-strength bolt 16 between blower fan tower barrel coxopodite lower flange 6 and the upper flange 5 of section, then I, III, V 3 Three sections of adaptor top boards 8 are inserted, then with displacement high-strength bolt 9 below the blower fan tower barrel coxopodite lower flange 6 of individual section Through upper flange 5, adaptor top board 8 and the blower fan tower barrel coxopodite lower flange 6 of foundation ring 4 upper end, then in switching Vertical steel is installed below part top board 8 and supports 1;
D. remove hydraulic jack 15, dismounting II, IV, VI 3 sections blower fan tower barrel coxopodite lower flange 6 and on High-strength bolt 16 between flange 5, inserts below the blower fan tower barrel coxopodite lower flange 6 of II, IV, VI 3 sections Enter three sections of adaptor top boards 8, then with displacement high-strength bolt 9 through the upper flange 5 of foundation ring 4 upper end, adaptor Top board 8 and blower fan tower barrel coxopodite lower flange 6, then install vertical steel below adaptor top board 8 and support 2 11;
E., vertical steel is installed below the adaptor top board 8 of I, II, III, IV, V, VI each section and supports three 12, the then design pretension of the symmetrical stretch-draw in interval displacement high-strength bolt 9 to half;
F. below adaptor top board 8, the assembling reinforcement respectively of the interior outside of foundation ring 4, support shuttering, pour mixed Solidifying soil, prepares reinforced concrete circle beam 14;
G., after concrete strength reaches design load, stretch-draw displacement high-strength bolt 9, to design pretension, completes basis Ring 4 and the reconnect of blower fan tower barrel 1, make foundation ring tension, base concrete pressurized, it is achieved wind power generation stepped The reinforcing on foundation ring basis.
The tower upside-down mounting reinforcement means of above-described generation power foundation of wind power ring group plinth, bracket 7 amounts to 12.
The present invention replaces high-strength bolt 9 by stretch-draw, makes foundation ring 4 tension, adaptor top board 8 be propped up by curved, steel Support 1, bracing members 2 11 and bracing members bracing members 3 12 pressurized, reinforced concrete circle beam 14 pressurized, make base Plinth is by bigger compressive stress, and anti-crack ability is greatly improved;The tension variations width making foundation ring 4 is reduced to original structure 1/3~1/4, the 1/9~1/16 of ultimate strength, highly beneficial to the resisting fatigue of foundation ring 4 and base concrete, Can fundamentally solve the problem that foundation ring basis produces cracking because of tired.Achieve extraordinary technique effect.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill of the art For personnel, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improve Also protection scope of the present invention is should be regarded as with retouching.

Claims (4)

1. the tower upside-down mounting hardened system of a generation power foundation of wind power ring group plinth, it is characterised in that this system Including: blower fan tower barrel (1) and foundation ring basis (2), foundation ring basis (2) includes concrete foundation (3) With foundation ring (4), in foundation ring (4) lower end Transducers Embedded in Concrete basis (3), the upper end of foundation ring (4) Being 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), and bracket (7) lower section is provided with hydraulic jack (15), The upper flange (5) of foundation ring (4) and blower fan tower barrel coxopodite lower flange (6) of blower fan tower barrel (1) lower end it Between be inserted with adaptor top board (8), adaptor top board (8) lower section supports one (10) by vertical steel, and steel props up Support two (11), bracing members three (12) and support baseboard (13) are bearing in concrete foundation (3) end face;Put Change high-strength bolt (9) through the upper flange (5) of foundation ring (4) upper end, adaptor top board (8) and blower fan Tower coxopodite lower flange (6), thus foundation ring (4) and blower fan tower barrel (1) are connected;
Inside and outside described adaptor top board (8) lower section and foundation ring (4), armored concrete ring is installed Beam (14).
The tower upside-down mounting hardened system of generation power foundation of wind power ring group plinth the most according to claim 1, its Being characterised by, described bracing members one (10) and bracing members two (11) are respectively 12, bracing members one (10) It is positioned on support baseboard (13) with bracing members two (11) bottom.
3. the tower upside-down mounting reinforcement means of a generation power foundation of wind power ring group plinth, it is characterised in that include with Lower step:
A. grouting method is used to repair the crack of foundation ring basis (2);
B. by the most radially even for the adpting flange of blower fan tower barrel (1) and foundation ring (4) being divided into I, II, III, IV, V, VI 6 reinforcing sections:
Unscrew the high-strength bolt (16) between connecting fan tower coxopodite lower flange (6) and upper flange (5), Corresponding II, IV, VI 3 sections blower fan tower barrel coxopodite lower flange (6) two ends and inside and outside respectively Welding bracket (7), installs a hydraulic jack (15) in each bracket (7) lower section;
C. after by hydraulic jack (15) synchronization of jacking up blower fan tower barrel (1) to certain altitude, dismounting I, III, the high-strength bolt (16) between blower fan tower barrel coxopodite lower flange (6) and the upper flange (5) of V 3 sections, Then three sections of adaptor tops are inserted in blower fan tower barrel coxopodite lower flange (6) lower section at I, III, V 3 sections Plate (8), then with displacement high-strength bolt (9) through the upper flange (5) of foundation ring (4) upper end, adaptor Top board (8) and blower fan tower barrel coxopodite lower flange (6), then install vertical steel in adaptor top board (8) lower section Support one (10);
D. hydraulic jack (15), the blower fan tower barrel coxopodite lower flange of II, IV, VI 3 sections of dismounting are removed (6) high-strength bolt (16) and between upper flange (5), at the blower fan tower barrel of II, IV, VI 3 sections Three sections of adaptor top boards (8) are inserted in coxopodite lower flange (6) lower section, then pass with displacement high-strength bolt (9) The upper flange (5) of foundation ring (4) upper end, adaptor top board (8) and blower fan tower barrel coxopodite lower flange (6), Then in adaptor top board (8) lower section, vertical steel is installed and supports two (11);
E. vertical steel is installed in adaptor top board (8) lower section at I, II, III, IV, V, VI each section Supporting three (12), then interval symmetrical stretch-draw displacement high-strength bolt (9) is to the design pretension of half;
F. in adaptor top board (8) lower section, the assembling reinforcement respectively of the interior outside of foundation ring (4), support shuttering, Casting concrete, prepares reinforced concrete circle beam (14);
G., after concrete strength reaches design load, stretch-draw displacement high-strength bolt (9) is to designing pretension, complete Become foundation ring (4) and the reconnect of blower fan tower barrel (1), make foundation ring tension, base concrete pressurized, Realize the reinforcing of generation power foundation of wind power ring group plinth.
The tower upside-down mounting reinforcement means of generation power foundation of wind power ring group plinth the most according to claim 3, its Being characterised by, bracket (7) amounts to 12.
CN201510388534.0A 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 Active CN104929148B (en)

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CN106522261B (en) * 2016-10-26 2018-11-02 国家电网公司 Ruggedized construction and method of double cement mo(u)ld shaft towers in coal mine gob
CN106703068A (en) * 2017-03-01 2017-05-24 北京建筑大学 Concrete tower cylinder and foundation connecting mode
CN107013416B (en) * 2017-04-29 2019-02-22 中国能源建设集团安徽电力建设第一工程有限公司 A kind of installation method of blower fan tower barrel

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US8458970B2 (en) * 2008-06-13 2013-06-11 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
CN103967041B (en) * 2014-05-21 2016-04-27 中冶天工集团有限公司 Blower foundation ring construction method

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