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WO2019002096A1 - Mât et son procédé de fabrication - Google Patents

Mât et son procédé de fabrication Download PDF

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Publication number
WO2019002096A1
WO2019002096A1 PCT/EP2018/066628 EP2018066628W WO2019002096A1 WO 2019002096 A1 WO2019002096 A1 WO 2019002096A1 EP 2018066628 W EP2018066628 W EP 2018066628W WO 2019002096 A1 WO2019002096 A1 WO 2019002096A1
Authority
WO
WIPO (PCT)
Prior art keywords
precast concrete
tower
filling
formwork
reinforcement
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2018/066628
Other languages
German (de)
English (en)
Inventor
Thorsten Betz
Michael Stahl
Frank Bleuel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ventur GmbH
Original Assignee
Ventur GmbH
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 Ventur GmbH filed Critical Ventur GmbH
Publication of WO2019002096A1 publication Critical patent/WO2019002096A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • E04H12/16—Prestressed structures
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • 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
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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 invention relates to a tower and a method for producing a tower, in particular for a wind turbine or the like, wherein a wall of the tower is at least partially assembled from precast concrete parts, wherein the precast concrete elements are clamped via a prestressing system with tension strands or tendons in a longitudinal direction of the tower, wherein the precast concrete parts are non-positively and / or positively connected with each other, wherein a precast concrete element has a reinforcement.
  • Towers for wind energy plants are known from the prior art and regularly comprise a concrete foundation on which a plurality of tower segments are arranged and connected to each other.
  • the tower segments may be formed as rings or ring segments or plate-shaped precast concrete elements, and transported prefabricated to a construction site and connected there. Furthermore, it is known to clamp these precast concrete parts via tension strands within the tower with each other. In principle, however, towers can also be completely or partially made of in-situ concrete.
  • the precast concrete parts used to construct a tower can be plate-shaped or tubular.
  • Panel-shaped precast concrete elements are easy to transport due to their dimensions and weight and can be used, for example, to create a tower with a polygonal cross-section. Alone through the use of plate-shaped precast concrete costs can already be saved in the construction of a tower for a wind turbine.
  • the prefabricated concrete parts are regularly clamped together by means of tensioning strands or tendons in the longitudinal direction of the tower or connected non-positively.
  • the tension strands or tendons can in the interior of the tower or in a wall of the tower, as in
  • the plate-shaped precast concrete elements are regularly produced so that in a formwork, a reinforcement, for example, a reinforcement mesh of mild steel, inserted and the formwork is poured with concrete.
  • a reinforcement for example, a reinforcement mesh of mild steel
  • it is attempted to form the precast concrete in such a way that concrete is saved at points with low static load on the precast concrete element, for example by having a wall thickness in the middle of a plate-shaped precast concrete element compared to the outer edges of the precast concrete element
  • Precast concrete part is significantly reduced. This can be achieved by forming a negative mold of the formwork or, in the case of a horizontal formwork panel, by providing inserts which can correspondingly displace the concrete when it is poured into the formwork.
  • Prefabricated concrete parts designed in this way are then arranged on the tower in such a way that a depression formed by the formwork is arranged on a tower inner surface of the precast concrete element. Accordingly, these precast concrete elements have a spike on the tower inner surface, based on a cross section. To avoid edges that could promote, for example, cracking, a steady transition, for example in the manner of a slope, between different wall thicknesses of the precast concrete part can be formed, which, however j edoch a weight of the precast concrete increases again.
  • the present invention is therefore based on the object to propose a tower and a method for producing a tower, which enables a simple and cost-effective production of a tower.
  • This object is achieved by a tower with the features of claim 1 and a method with the features of claim 12 dissolved.
  • a wall of the tower is at least partially composed of precast concrete parts, wherein the precast concrete elements are clamped via a prestressing system with tension strands or tendons in a longitudinal direction of the tower, the precast concrete parts frictionally and / or wherein a precast concrete part has a reinforcement, wherein the concrete finished part has a support area and a filling area, wherein in the filling area in the precast concrete part a filling body is arranged, which forms a filling space.
  • the tower is therefore composed of a variety of precast concrete elements that form an outer wall of the tower.
  • One or more, preferably all, of these precast concrete parts is with the support area and formed the filling area.
  • the support region essentially serves to ensure a static strength of the precast concrete part, and in principle a wall thickness or wall thickness of the precast concrete part can be reduced in the filling region due to the comparatively low static strength required here.
  • reducing a wall thickness it is intended to arrange one or a plurality of random packings within the wall of the precast concrete element.
  • the fillers have a density that is comparatively many times lower than that of concrete or are considerably lighter than concrete.
  • the arrangement of the filler or within the wall of the precast concrete part can be formed in the precast concrete part by the filling body in each case trained, self-enclosed filling space. Since it is a closed filling space and not a passage opening, no tendons, tensioning strands or the like can be passed through the filling space.
  • the filling space is consequently essentially completely surrounded by concrete of the one-piece precast concrete part.
  • the weight saving on the precast concrete part results solely from the fact that the or the filler displace concrete when poured into a formwork.
  • the filling body remains within the precast concrete part, so that a thickness of the wall can be formed substantially uniformly.
  • a special design of a formwork is then no longer necessary.
  • a reinforcement that is regularly arranged in the edge region of a wall of a precast concrete part no longer be adapted to a reduced wall thickness, which further simplifies a production of the precast concrete part.
  • the precast concrete element can be formed with an increased resistance moment. So it is also possible a concrete share to reduce even further within the filling area. Overall, then results by the simplified production and the possible weight reduction of precast concrete parts a simplified and cheaper production of a tower.
  • the biasing system with tension strands or tendons may be designed so that the tension strands or
  • the filler may be a hollow body or a solid body made of a material with a much lower compared to concrete density.
  • the hollow body may be a gas-filled body.
  • the solid body may for example consist of a foamed plastic material or another comparatively light material such as wood or a recycled material.
  • the hollow body may be cylindrical or spherical, or a longitudinally arranged arranged at its ends closed tubular profile or square profile, preferably made of a plastic material, be. Due to the arrangement of the hollow body in the longitudinal direction of the precast concrete element or the tower adaptation to a static load can be easily achieved.
  • the hollow body can have any desired shape.
  • the hollow body is particularly easy to train if pipes made of plastic or other simple and inexpensive available profile body can be used. Here must then only open ends of the respective profiles with, for example, a cover are strig ssen.
  • a multiplicity of filling bodies can be arranged, wherein the carrying region can be free of filling bodies, wherein the filling bodies can be completely surrounded by concrete of the precast concrete part.
  • the support area is then particularly stable in terms of static strength and the filling area particularly easy to train.
  • the packing can be arranged regularly or irregularly. If, for example, the fillers are tubes, they may be arranged in bundles or at a distance relative to one another within the precast concrete part. If the fillers are completely surrounded by the concrete, the filler is no longer visible on the precast concrete part.
  • the filling area can be surrounded by the support area like a frame.
  • the precast concrete part can thus be comparatively more stable in its edge regions, that is to say be formed with a higher strength.
  • the frame-like support area can be free of packing.
  • a width of the frame-like support region can be greater than a width of a filling body.
  • the reinforcement may be formed of a reinforcing grid made of structural steel, wherein the reinforcement may be arranged unstressed in the precast concrete part.
  • Structural steel is understood to mean reinforcing steel (in accordance with DIN 488), which is used as reinforcement in reinforced concrete. The fact that no bracing of the reinforcement is required and the reinforcement grille only has to be inserted into the formwork, the precast concrete element is easy to produce.
  • the prefabricated concrete part may have over its entire length in the longitudinal direction of the tower a non-interchangeable, preferably equal-thickness cross-section.
  • the cross-section can then, with the exception of integrally formed at the outer edges connecting portions or an engagement teeth tion, be constant in relation to the length.
  • a continuous change of the cross section in the longitudinal direction may be provided, in which case no jump of the cross section occurs here as well.
  • a special design of a formwork is then no longer necessary, so half a production of precast concrete is then simplified.
  • the tower may be circular or polygonal, preferably hexagonal or octagonal, based on a cross section of the tower.
  • the precast concrete part may be formed in the manner of a concrete ring or ring segment.
  • the precast concrete part may also be polygonal, preferably plate-shaped.
  • the precast concrete elements are plate-shaped, these can in each case have an engagement toothing on longitudinal sides, wherein the engagement toothings of adjacent precast concrete parts can mesh with one another. Due to the design of the meshing gears on the longitudinal sides, it is possible to connect the precast concrete parts on the longitudinal sides in a form-fitting manner. Laterally adjacent precast concrete parts can then be arranged offset relative to each other in the longitudinal direction of the tower, whereby a particularly good form-locking connection of all precast concrete parts can be formed with each other.
  • the meshing teeth can always be designed to match each other.
  • a complementary, non-positive connection of the precast concrete parts with each other, for example by means of screw anchor or the like, can be provided.
  • the tower can be completely composed of precast concrete elements. The tower then completely consists of the precast concrete elements and, if necessary, add-on parts for fastening a nacelle of a wind energy plant.
  • the tower may have a tower section composed of the precast concrete elements and an upper tower section have, which is formed of steel elements or a framework of steel profiles.
  • the tower can therefore be designed as a so-called hybrid tower.
  • hybrid towers can be cheaper to produce than pure concrete or steel towers.
  • the upper tower section can be formed from annular prefabricated steel parts, which are screwed together, or from a truss-like steel framework.
  • the concrete tower or the hybrid tower for example, have a hub height of 50 m to 300 m, 100 m to 200 m, or 120 m to 170 m.
  • a wall of the tower is at least partially assembled from precast concrete parts, wherein the precast concrete elements are clamped in a longitudinal direction of the tower via a prestressing system with tension strands or tendons, the precast concrete parts a precast concrete part is formed with a reinforcement, wherein the precast concrete part is formed with a support area and a filling area, wherein in the filling area at a pouring a shuttering of precast concrete with concrete in the formwork a packing is arranged , which forms a filling space in the precast concrete part.
  • the formwork can have a horizontal shuttering panel, which can form a tower outer surface or a tower inner surface of the precast concrete element. So it is then possible to produce simply plate-shaped precast concrete by means of the horizontal formwork panel.
  • the formwork can be partially filled with concrete, wherein at least one layer can be formed, can be arranged and fixed on top of the layer of packing, with nachfo lying completely the formwork can be poured with concrete.
  • a layer of concrete can be poured into the formwork or onto a horizontal formwork panel, wherein after at least partial solidification of the layer, a reinforcing grid can be placed thereon.
  • the layer may be up to 4 cm thick, for example, so that the reinforcing grid is spaced from a tower outer surface or tower inner surface of the precast concrete part.
  • a layer of packing can be placed and fixed on the reinforcing grid.
  • the formwork is completely filled with concrete.
  • a further reinforcement inside the formwork can be used above the packing.
  • the packing can be covered with another reinforcement grid.
  • the fillers can then be easily secured against floating in the final poured concrete by a partial connection of the respective reinforcing grid. Consequently, the reinforcing meshes take the fillers between look up. So it is also possible to prepare so fixed with reinforcing mesh filler and simply hang up on the layer of concrete in the formwork.
  • the packing or the additional reinforcing grid can be covered with up to 4 cm of concrete. A thickness of a wall or wall thickness of the precast concrete part can then be up to 30 cm. It can also be provided to cast the formwork once, that is, in one step, with concrete.
  • the formwork may have two parallel, vertical shuttering panels, which may form a tower outer surface and a tower inner surface of the precast concrete part. In this case, it can be provided to cast the formwork once, that is, in one step, with concrete.
  • the reinforcement can be used in this, wherein the reinforcement can be formed from at least two parallel spaced reinforcing bars, wherein between the reinforcing meshes packing can be arranged and fixed, wherein subsequently the formwork can be completely filled with concrete. If an assembly of precast concrete in situ erfo lied, the tower can be made very simple.
  • Fig. 1 precast concrete elements in a side view; 2 shows a cross-sectional view of a first embodiment of a precast concrete part;
  • FIG. 3 shows a cross-sectional view of a second embodiment of a precast concrete part
  • FIG. 5 shows a cross-sectional view of a fourth embodiment of a precast concrete part
  • FIG. 6 shows a longitudinal sectional view of a fifth embodiment of a precast concrete part
  • Fig. 7 is a longitudinal sectional view of a sixth embodiment of a precast concrete part.
  • Fig. 1 shows precast concrete parts 10 and 1 1 of a tower not shown here in a side view.
  • the precast concrete parts 10 and 1 1 are arranged with its longitudinal axis 12 in the longitudinal direction of the tower and thus form a wall 13 of the tower.
  • the precast concrete parts 1 0 and 1 1 are braced in the longitudinal direction of the tower via a prestressing system in the interior of the tower, which is not shown here.
  • Each of the precast concrete parts 10 and 11 has a support region 14 or 15 and a filling region 16 or 17, respectively.
  • the precast concrete parts 10 and 1 1 have in the filling area 16 or 17 in each case in this case not shown filling bodies, which are surrounded by concrete.
  • the precast concrete parts 10 and 1 1 are each formed plate-shaped and have on longitudinal sides 1 8 and 1 9 an engagement toothing 20 and 21, which are formed in accordance with adjacent, not shown here precast concrete parts of the tower.
  • the engagement toothing 20 is designed here as a cam 22 and the engagement toothing 2 1 as a recess 23.
  • the precast concrete parts 10 and 1 1 over its entire length in the longitudinal direction of the tower jump-free, with a same thickness, not shown cross-section formed.
  • the precast concrete parts 10 and 1 1 each have a reinforcement also not shown here. 2 shows a cross-sectional view of a precast concrete part 24 of a tower, not shown here, with a reinforcement 25 of reinforcing mesh 26 and 27.
  • the reinforcing mesh 26 and 27 are made of structural steel and are within a few centimeters of a tower outer surface 28 and a tower inner surface 29 of the precast concrete part 24th arranged within this. Between the reinforcing gratings 26 and 27, a filler 30 is arranged, which forms a filling region 3 1 of the precast concrete part 24. On longitudinal sides 32 of the precast concrete part 24 is in each case an engagement toothing 33 is formed for connection to an adjacent, not shown here precast concrete. A wall 32 of the concrete precast element 24 is always uniformly thick. On the longitudinal sides 32 of the filling region 3 1 is surrounded by a support portion 35, which substantially a static load, which acts on the precast concrete part 24, receives.
  • the filler 30 thus forms a filling chamber 36, which is surrounded by concrete on all sides.
  • Fig. 3 shows a precast concrete part 37 without the detailed representation of a reinforcement, which in contrast to the precast concrete part of Fig. 2 has a plurality of packing 38 into the filling region 3 1.
  • the fillers 38 are in each case formed of a square profile 39 with closed ends, not shown here.
  • the hollow profiles 39 formed in this way are spaced apart from each other at regular intervals, so that the square profiles 39 are completely surrounded by concrete.
  • FIG. 4 shows a variant of a precast concrete part 40 with tubular packing elements 41 in contrast to the precast concrete part from FIG. 3.
  • the tubular packing 41 are arranged here in rows 42 to three fillers 41, wherein the rows 42 are spaced from each other.
  • FIG. 5 shows a precast concrete part 43 which, in contrast to the precast concrete part from FIG. 4, has tubular profiles 44 which form packing 45.
  • the tube profiles 44 have a comparatively large diameter and are equally spaced from each other.
  • FIG. 6 shows a longitudinal sectional view of a filling region 46 of a precast concrete element 47 shown here only in sections. Spherical filling elements 48 are arranged in the filling region 46.
  • FIG. 7 shows, in contrast to the precast concrete part of FIG. 6, a precast concrete part 49 with tubular packing 50.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Wind Motors (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

L'invention concerne un mât ainsi qu'un procédé de fabrication d'un mât, en particulier pour une éolienne, une paroi (34) du mât étant constituée au moins par endroits d'éléments préfabriqués en béton (24), les éléments préfabriqués en béton étant précontraints dans une direction longitudinale du mât par l'intermédiaire d'un système de précontrainte comportant des torons de mise en tension ou des éléments de mise en tension, les éléments préfabriqués en béton étant reliés l'un à l'autre par liaison à force et/ou par complémentarité de forme, un élément préfabriqué en béton présentant une armature (25), l'élément préfabriqué en béton présentant une zone de portée (35) et une zone de remplissage (31), un corps de remplissage (30) formant une chambre de remplissage (36) étant disposé dans la zone de remplissage dans l'élément préfabriqué en béton.
PCT/EP2018/066628 2017-06-29 2018-06-21 Mât et son procédé de fabrication Ceased WO2019002096A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017211092.9A DE102017211092A1 (de) 2017-06-29 2017-06-29 Turm und Verfahren zur Herstellung
DE102017211092.9 2017-06-29

Publications (1)

Publication Number Publication Date
WO2019002096A1 true WO2019002096A1 (fr) 2019-01-03

Family

ID=62874840

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/066628 Ceased WO2019002096A1 (fr) 2017-06-29 2018-06-21 Mât et son procédé de fabrication

Country Status (3)

Country Link
AR (1) AR112429A1 (fr)
DE (1) DE102017211092A1 (fr)
WO (1) WO2019002096A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12486689B2 (en) 2022-01-07 2025-12-02 Pittsburg Tank & Tower Group Elevated tank tower

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019116519A1 (de) * 2019-06-18 2020-12-24 Max Bögl Wind AG Schalungsvorrichtung und Verfahren zur gleichzeitigen Herstellung mehrerer konzentrisch ineinanderpassender Betonfertigteile unterschiedlicher Größe

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EP2821645A1 (fr) * 2013-07-05 2015-01-07 Acciona Windpower S.a. Segment préfabriqué pour tour éolienne et procédé de construction d'une tour de turbine éolienne utilisant ledit segment préfabriqué

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Publication number Priority date Publication date Assignee Title
WO2010134029A2 (fr) * 2009-05-19 2010-11-25 Pacadar S.A. Structure de support pour éoliennes et procédé pour ériger cette structure de support
EP2821645A1 (fr) * 2013-07-05 2015-01-07 Acciona Windpower S.a. Segment préfabriqué pour tour éolienne et procédé de construction d'une tour de turbine éolienne utilisant ledit segment préfabriqué

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Publication number Priority date Publication date Assignee Title
US12486689B2 (en) 2022-01-07 2025-12-02 Pittsburg Tank & Tower Group Elevated tank tower

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Publication number Publication date
DE102017211092A1 (de) 2019-01-03
AR112429A1 (es) 2019-10-30

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