WO2011029965A1 - Procédé de montage d'un mât préfabriqué de béton d'une éolienne, et structure de prémontage des segments de ce mât - Google Patents

Procédé de montage d'un mât préfabriqué de béton d'une éolienne, et structure de prémontage des segments de ce mât Download PDF

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Publication number
WO2011029965A1
WO2011029965A1 PCT/ES2009/070373 ES2009070373W WO2011029965A1 WO 2011029965 A1 WO2011029965 A1 WO 2011029965A1 ES 2009070373 W ES2009070373 W ES 2009070373W WO 2011029965 A1 WO2011029965 A1 WO 2011029965A1
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WO
WIPO (PCT)
Prior art keywords
segments
segment
wind turbine
prefabricated concrete
concrete tower
Prior art date
Application number
PCT/ES2009/070373
Other languages
English (en)
Spanish (es)
Inventor
Joaquín PORTABELLA DE NADAL
Original Assignee
Prefabricados Agricolas E Industriales, S. A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Prefabricados Agricolas E Industriales, S. A. filed Critical Prefabricados Agricolas E Industriales, S. A.
Priority to PCT/ES2009/070373 priority Critical patent/WO2011029965A1/fr
Publication of WO2011029965A1 publication Critical patent/WO2011029965A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • E04H12/12—Structures made of specified materials of concrete or other stone-like material, with or without internal or external reinforcements, e.g. with metal coverings, with permanent form elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
    • 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

Definitions

  • the present invention has for object a pre-assembly procedure in horizontal position of the sections or segments that constitute a prefabricated concrete tower of a wind turbine, in which the sections or segments are formed by the collateral union of voussoirs. Also the object of the invention is the assembly procedure of the prefabricated tower from the sections or segments obtained according to the horizontal pre-assembly procedure described above.
  • Another object of the invention is the structure used to carry out the horizontal pre-assembly of each section of the tower.
  • the procedure to build towers capable of supporting heavy machines is the on-site pouring consisting of making the formwork and the armor on site, pouring the concrete next.
  • This procedure has the following disadvantages: low quality of concrete and therefore less resistance, construction depends on atmospheric conditions, a large face crane and scaffolding is necessary, and it requires a lot of time.
  • the prefabricated concrete towers used to support wind turbines are raised from cylindrical elements that are connected together by tension and mortar cables, using large cranes that stack these elements. The transport of these elements is also of great complication due to its high diameters.
  • the invention patent ES 2272954 describes a wind turbine that is supported by a tower that can be lifted from prefabricated voussoirs, which are transported and manipulated more simply than the sections or complete elements described above, so they do not require a Special road transport and / or heavy equipment for lifting.
  • the tower described in said invention patent is composed of segments or annular segments composed of adjacent prefabricated wall parts or segments, placed side by side forming said annular segment, in which the voussoirs are more than twice as tall as the largest dimension of the voussoirs in the direction of the width, and the horizontal edges of the annular segments are placed one on top of the other.
  • the voussoirs are pre-assembled on site to form the segments that are hoisted with large cranes, the pre-assembly being carried out in the final location or in a provisional location.
  • the invention patent ES 224734 describes a modular prefabricated tower that also uses prefabricated elements that are mounted in vertical position and that are reinforced by an internal structure of horizontal and vertical ribs, preferably made of reinforced concrete, being tensioned by metallic cables. flexible that are tensed once placed in a vertical position each segment and the voussoirs that form it.
  • the present invention proposes to carry out the pre-assembly of each segment or annular segment of the tower in a horizontal position, thus eliminating the problems described above.
  • a first object of the invention is the pre-assembly procedure of each ring segment of the tower from the segments.
  • a second object of the invention relates to the method of assembling the tower by superposition of segments, in which each segment forming the tower is obtained according to said pre-assembly procedure.
  • the preassembly method proposed according to the first object of the invention makes it possible to obtain the desired annular configuration of the segment from the positioning and fixing of the voussoirs, in which the voussoirs may have a partially frustoconical shape, or partially cylindrical or flat or partially troncopiramidal or others.
  • the pre-assembly procedure would take place according to the following phases:
  • the assembly procedure of the tower consists in the turning operation from the horizontal position and the elevation of each of the segments obtained in accordance with the horizontal pre-assembly procedure described above, and its vertical mounting, in which the first segment is mounted in vertical position and the other segments are also mounted in vertical position on the segment previously installed.
  • a third object of the invention constitutes a structure designed to carry out the described procedure of pre-assembly of the segments of the tower from the segments.
  • the structure according to this third object of the invention comprises at least two frames adapted to support and constitute a horizontal support of the segments from which the segment is obtained, in which the frames are located in a distant and level position. In the case of having two racks it is contemplated that these are located at a distance of approximately 3/5 of the length of the segment.
  • Each of the frames has essentially a base cross and vertical beams that depart from said base cross, incorporating on the base cross at least two supports adapted to support and fix a voussoir in a horizontal position, in this case the lower voussoir , so that its longitudinal axis is located in an essentially horizontal position.
  • the longitudinal axis is understood as its axial axis, and its positioning on the supports is made with its concavity oriented superiorly.
  • first mooring means that facilitate the support and fixation of the lower segment on the supports.
  • These first mooring means also facilitate the reception of the lateral voussoir that is located in a horizontal and collateral arrangement with the edge of the lower voussoir.
  • the structure also incorporates fastening means designed to fix the lateral segment by one of its ends on the vertical beam in a position such that a continuity of the lateral segment is established with the lower segment with adequate orientation to progressively form the segment with the intended ring configuration.
  • second mooring means is envisaged which together with the first mooring means collaborate in the fixation of the lateral voussoir in collateral arrangement with the lower voussoir.
  • the structure comprises the above-described mold, which is supported on the second mooring means and shows a suitable geometry and orientation for the subsequent arrangement of key or superior voussoirs which together with the lower voussoir and lateral voussoirs will form the segment with the desired ring geometrical configuration.
  • the mold is preferably formed by a supporting arch that can be a curved steel beam or a lattice and by two adjustable struts that start from the ends of the supporting arch and whose opposite ends are adapted to be fixed to the second means of Mooring
  • the mold also has fixing means that allow its connection to the lateral segments.
  • the key or upper segments are mounted horizontally, for which an auxiliary or retaining crane or some auxiliary steel structure can be used to facilitate the turning of the upper segment smoothly. and progressive.
  • the segment would be ready to proceed to execute the longitudinal joints between segments. It is planned that the mold is configured in such a way as to allow the free circulation of people, wheelbarrows and the necessary material to execute said longitudinal joints between segments.
  • the realization of the joints in horizontal position of the segment is executed much easier than in the case of vertical mounting, since the workers work at much lower heights, the joints can be filled at one time and without excessive hydrostatic pressures, improving therefore the speed of work and the quality of the finish.
  • Another advantage associated with the horizontal pre-assembly of the tower segment is that low-tonnage cranes are required. Subsequently, for the assembly of the already formed segments, to configure the tower, large tonnage cranes are used that place one segment on another in a turning and lifting maneuver.
  • Figure 1 shows a view of the segment formed horizontally according to the pre-assembly process object of this invention, which also observes the frames of the structure used to execute this procedure.
  • Figure 2.- Shows a side view of the frame.
  • Figure 3.- Shows an elevation view of the frame.
  • Figure 4 shows a plan view of the frame.
  • Figure 5. Shows the assembly sequence of the lower segment from its unloading from the truck to its horizontal positioning and mooring on the frame.
  • Figure 6 shows an elevation view in which the first mooring means fixing the lower segment by one of its ends is shown in detail.
  • Figure 7 shows a side view of one of the pieces that make up the first mooring means.
  • Figure 8 shows a plan view of a joint washer that forms part of the first mooring means.
  • Figure 9. Shows the assembly sequence of one of the voussoirs from the unloading of the truck to its horizontal positioning on the lower segment already assembled, and its subsequent mooring on the frame.
  • Figure 10.- Shows a side view of a joint part that forms part of the second mooring means.
  • Figure 11. Shows an elevation view of the joining part of figure 10.
  • Figure 12. Shows a plan view of the joining part of the figure
  • Figure 13. Shows an elevation view of a mold formed by truss lattice and adjustable struts.
  • Figure 14.- Shows an elevation view in which the frame with the lower and lateral segments already mounted on the frame is observed, and a mold formed by a curved beam and adjustable struts that is positioned to receive the upper segments.
  • Figure 15. Shows the assembly sequence of the upper segments from the truck unloading to its horizontal positioning on the support arch.
  • Figure 16. Shows a view of a segment formed by three segments on the horizontal pre-assembly structure.
  • Figure 17. Shows a view of a segment formed by four segments on the horizontal pre-assembly structure.
  • Figure 18. Shows a view of a segment formed by five voussoirs on the horizontal pre-assembly structure, which would constitute the assembly solution subsequent to that shown in figure 15.
  • Figure 19. Shows a view of a segment formed by six segments on the horizontal pre-assembly structure.
  • Figure 20.- Shows the assembly sequence of the tower from the segments from its horizontal position.
  • the structure will present geometries and curvatures adapted to the measurements, shapes and number of segments that will form said segment (2), so that it will be possible to have a structure for each segment (2) to conform to the tower.
  • the structure comprises at least two frames (1) adapted to support and constitute horizontal support of the segment (2) to be formed on it, in this case from five voussoirs: lower voussoir (2.1), two lateral voussoirs (2.2) and two upper voussoirs (2.3).
  • Said frames (1) are located in a distant and level position, each of which, as shown in Figures 2 to 4, essentially has a crossbeam base (3) and vertical beams (4) that start distant from said base cross member (3), also observing bracing beams (5) that support the vertical beams (4) on the base cross member (3) and on a few stringers (6) perpendicular to the base cross member (3).
  • Figures 3 and 4 show that on the base cross member (3) there are at least two supports (7) adapted to support and fix the lower segment (2.1), as shown in Figure 5, so that its axial axis is located in an essentially horizontal position.
  • Figure 6 shows in detail the first mooring means (11) linked to one of the ends of the lower segment (2.1), in which said first mooring means (11) comprise a joint part (12) formed by: a flat bar (13) of curvature coinciding with that of the lower segment (2.1) and adapted to receive said lower segment (2.1) and the lateral segment (2.2), each of the lugs (14), which can also be seen in the figure 7, intended for the introduction of a pin, not shown, which crosses and establishes the connection with the anchor (2), and a joint washer (15) adapted for its location on the face of the lower segment (2.1) opposite to the contact with the connecting piece (12) that facilitates the fixation of the lower segment (2.1) with the first joint piece (12), with the additional collaboration of a bolt (16) and nuts (17).
  • a joint part (12) formed by: a flat bar (13) of curvature coinciding with that of the lower segment (2.1) and adapted to receive said lower segment (2.1) and the lateral segment (2.2), each of the lugs
  • Figure 9 shows the assembly of one of the side segments (2.2) which is moved from the truck (8) by means of a sling (9) and then positioned collaterally and horizontally with the lower segment (2.1).
  • the structure has fixing means (30) that establish the connection of the lateral segment (2.2) thus positioned with the vertical beam (4).
  • second lashing means (20) intended to fix the relative position of the side segment (2.2) with respect to the lower segment (2.1), as shown in Figure 14.
  • the above-described joint washer (15) incorporates a recess (18) on one side intended for its tongue and groove joint with a second joint part (19), shown in figure 11, which forms part of the second lashing means (20).
  • the mold (23) represented in figure 14 comprises a support arch (24, 25), fixing means (27) that establish the union of the support arch (24, 25) with the lateral segments (2.2) and both struts (26) adjustable in height starting from the ends of the supporting arch (24, 25) and fixed to the lugs (23) of the second connecting pieces (19).
  • the supporting arch (24, 25) consists of a curved beam (24)
  • the supporting arch (24, 25) consists of a latticework (25).
  • Figure 15 shows the final assembly operation of the upper segments (2.3) that rise from the truck (8) by means of a sling (9) and are positioned horizontally on the curved beam (24) and in collateral arrangement with the lateral voussoirs (2.2).
  • Figure 18 shows the upper segments (2.3) already positioned forming the segment (2) with either the lateral voussoirs (2.2) and the lower voussoir (2.1).
  • Figure 16 shows the application of the structure (1) to the case of a segment (2) made up of three voussoirs: upper voussoir (2.3) and two lateral voussoirs (2.2), in which the voussoirs have been foreseen or lateral (2.2) are linked to the vertical beams (4) by fixing means (30) and have a support stop (31) between edges of the lateral segments (2.2) fixed to the crossbar (3) of the structure .
  • junction plates (32) and anchoring means that facilitate the continuity and connection between each of the lateral segments 5 (2.2) and the upper segment (2.3) has been envisaged.
  • Figure 17 shows that the structure (1) also allows the shaping of the segment (2) from four voussoirs: a lower voussoir (2.1), two lateral voussoirs (2.2) and an upper voussoir (2.3), in the that the lower voussoir (2.1) is connected to the lateral voussoirs (2.2) by means of the previously described first and second mooring means (11, 20), and the lateral segments (2.2) are connected to the upper segment (2.3) by the connecting plates (32) and corresponding anchoring means.
  • a lower voussoir (2.1), two lateral voussoirs (2.2) and an upper voussoir (2.3) in the that the lower voussoir (2.1) is connected to the lateral voussoirs (2.2) by means of the previously described first and second mooring means (11, 20), and the lateral segments (2.2) are connected to the upper segment (2.3) by the connecting plates (32) and corresponding anchoring means.
  • Figure 19 shows the structure for its application in the conformation of a segment (2) of six voussoirs: two lower voussoirs (2.1) that are mounted on the support stop (31), two lateral voussoirs (2.2) and two upper segments (2.3), where the incorporation of the first mooring means (11) joining the lower segments (2.1) with the lateral segments (2.2), in which said first mooring means (11) has been envisaged. they are mounted on supports (7) that in this case start from the vertical beams (4) instead of the crosspiece (3) of the structure (1). Also this structure (1) incorporates the second mooring means (20) that link the lower segments (2.1) with the lateral segments (2.2.), The aforementioned mold (23) and joining and support means (31) between edges. of the lateral segments (2.2) on the crossbar (3) of the structure (1).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

L'invention concerne un procédé de prémontage en position horizontale des tronçons ou segments annulaires (2) constituant un mât préfabriqué de béton d'une éolienne, les tronçons étant formés par union collatérale de parties de paroi, le procédé de montage de ce mât préfabriqué étant réalisé à partir des tronçons obtenus conformément audit procédé de prémontage en position horizontale. La structure utilisée permet la mise en place d'une partie de paroi inférieure (2.1) de sorte que son axe longitudinal se trouve en position sensiblement horizontale, ainsi que la fixation dans cette position. Elle permet en outre la mise en place collatérale de parties de paroi latérales (2.2) en disposition adjacente sur la partie de paroi inférieure (2.1), ainsi que la mise en place et la fixation d'un moule (23) présentant une géométrie et une orientation appropriées pour une mise en place ultérieure de parties de paroi supérieures (2.3) qui, conjointement avec la partie de paroi inférieure (2.1) et les parties de paroi latérales (2.2), forment le segment annulaire (2).
PCT/ES2009/070373 2009-09-09 2009-09-09 Procédé de montage d'un mât préfabriqué de béton d'une éolienne, et structure de prémontage des segments de ce mât WO2011029965A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2009/070373 WO2011029965A1 (fr) 2009-09-09 2009-09-09 Procédé de montage d'un mât préfabriqué de béton d'une éolienne, et structure de prémontage des segments de ce mât

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2009/070373 WO2011029965A1 (fr) 2009-09-09 2009-09-09 Procédé de montage d'un mât préfabriqué de béton d'une éolienne, et structure de prémontage des segments de ce mât

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2538734A1 (es) * 2013-12-20 2015-06-23 Acciona Windpower, S.A. Procedimiento de montaje de torres de hormigón de sección troncocónica y torre de hormigón montada con dicho procedimiento
ES2688842A1 (es) * 2017-05-03 2018-11-07 Universidad De Valladolid Soporte para acopio y transporte de dovelas
US10138649B2 (en) 2014-04-14 2018-11-27 Vestas Wind Systems A/S Tower segment handling method and apparatus
EP3483429A1 (fr) * 2017-11-13 2019-05-15 Nordex Energy GmbH Procédé et système de montage d'une section de tour pour une éolienne
EP3483430A1 (fr) * 2017-11-13 2019-05-15 Nordex Energy GmbH Procédé et système de montage d'une section de tour, procédé de montage d'un tour d'éolienne pourvu d'une telle section de tour et tour d'éolienne pourvu d'une telle section de tour
WO2023142876A1 (fr) * 2022-01-30 2023-08-03 上海风领新能源有限公司 Tour polygonale et son procédé de construction

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE500245A (fr) *
ES224734U (es) * 1976-11-26 1977-02-01 Gomez Saiz Jesus Bases de chasis apoya-cabezas superponibles y autofijables.
EP1889988A2 (fr) * 2006-08-16 2008-02-20 Inneo21, S.L. Structure et procédure d'assemblage de tours en béton utilisées pour des éoliennes
EP2006471A1 (fr) * 2007-06-20 2008-12-24 Siemens Aktiengesellschaft Tour d'éolienne et son procédé de construction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE500245A (fr) *
ES224734U (es) * 1976-11-26 1977-02-01 Gomez Saiz Jesus Bases de chasis apoya-cabezas superponibles y autofijables.
EP1889988A2 (fr) * 2006-08-16 2008-02-20 Inneo21, S.L. Structure et procédure d'assemblage de tours en béton utilisées pour des éoliennes
EP2006471A1 (fr) * 2007-06-20 2008-12-24 Siemens Aktiengesellschaft Tour d'éolienne et son procédé de construction

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2538734A1 (es) * 2013-12-20 2015-06-23 Acciona Windpower, S.A. Procedimiento de montaje de torres de hormigón de sección troncocónica y torre de hormigón montada con dicho procedimiento
US10138649B2 (en) 2014-04-14 2018-11-27 Vestas Wind Systems A/S Tower segment handling method and apparatus
US10208498B2 (en) 2014-04-14 2019-02-19 Vestas Wind Systems A/S Tower segment handling method and apparatus
US10787834B2 (en) 2014-04-14 2020-09-29 Vestas Wind Systems A/S Tower segment handling method and apparatus
ES2688842A1 (es) * 2017-05-03 2018-11-07 Universidad De Valladolid Soporte para acopio y transporte de dovelas
EP3483429A1 (fr) * 2017-11-13 2019-05-15 Nordex Energy GmbH Procédé et système de montage d'une section de tour pour une éolienne
EP3483430A1 (fr) * 2017-11-13 2019-05-15 Nordex Energy GmbH Procédé et système de montage d'une section de tour, procédé de montage d'un tour d'éolienne pourvu d'une telle section de tour et tour d'éolienne pourvu d'une telle section de tour
WO2023142876A1 (fr) * 2022-01-30 2023-08-03 上海风领新能源有限公司 Tour polygonale et son procédé de construction

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