EP2734689A1 - Structure porteuse en forme de tour - Google Patents

Structure porteuse en forme de tour

Info

Publication number
EP2734689A1
EP2734689A1 EP12728275.4A EP12728275A EP2734689A1 EP 2734689 A1 EP2734689 A1 EP 2734689A1 EP 12728275 A EP12728275 A EP 12728275A EP 2734689 A1 EP2734689 A1 EP 2734689A1
Authority
EP
European Patent Office
Prior art keywords
prestressed concrete
tower
adjacent
elements
clamping means
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.)
Withdrawn
Application number
EP12728275.4A
Other languages
German (de)
English (en)
Inventor
Rolf J. WERNER
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2734689A1 publication Critical patent/EP2734689A1/fr
Withdrawn legal-status Critical Current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
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • 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
    • E04H12/08—Structures made of specified materials of metal
    • E04H12/085—Details of flanges for tubular masts
    • 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
    • E04H12/342—Arrangements for stacking tower sections on top of each other
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/912—Mounting on supporting structures or systems on a stationary structure on a tower
    • 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-shaped, at least
  • Prestressed concrete elements each having a plurality of elongate clamping means, of which the plurality are guided in an adjacent prestressed concrete element and there under
  • Tower-shaped structures of the type mentioned are used in particular in wind turbines widely used.
  • the individual clamping elements are usually prefabricated, transported to the site and connected there or clamped together.
  • EP 2 253 782 A1 discloses
  • the flexible walls 48 have a low thermal mass to provide a fast
  • Fig. 3 shows a plan view of a reaction vessel 50 in direct contact with Heating elements 52 is and is surrounded by a cooling chamber 54.
  • the thickness of each flexible wall is preferably between approximately 0.0001 to 0.020 inches, more preferably 0.0005 to 0.005 inches, and most preferably 0.001 to 0.003 inches.
  • the wall may be a film, a sheet or a shaped, machined extruded or cast piece or other suitable thin and thin sheet
  • the material constituting the wall may be a polyalcohol such as polypropylene, polyethylene, polyester and other polymers, layered structures or homogeneous polymers, metals or
  • Metal sheet structures or other materials that are thin, flexible and adaptable and high
  • Allow heat transfer and preferably in the form of a film or sheet. If the scope of the
  • a vessel that holds the walls is made of a particular material, such. Polypropylene, the walls are made
  • Wedge anchors are used in which the free ends of the clamping means are clamped by wedges and thus anchored.
  • these have the disadvantage that they are slippery. This causes the preload forces in the
  • Clamping means are relatively difficult to adjust, especially since first a comparatively large overvoltage must be applied in order to compensate for the slip occurring subsequently. Furthermore, a wedge anchoring requires a relatively large overhang of the respective clamping means. This means that the respective clamping means after the clamping process manually or with complicated tools must be disconnected. This is very laborious and sometimes dangerous and hinders the rest
  • the invention is based on the idea to eliminate the slippage in the region of the end anchorage when connecting or clamping the individual prestressed concrete elements.
  • the invention provides that at a
  • Form-fitting means in particular have a thread at least at one end, and the clamping means are anchored in the adjacent prestressed concrete element via at least one Endverank ceremoniesselement which is connected via the positive locking means or thread with the clamping means.
  • clamping means can be minimized with a positive locking means, in particular thread at least at the respective free end of the supernatant of this free end, as this free end
  • the Endverank ceremoniessetti are accessible from the cavity in the interior of the tower-like structure. This not only results in a simplified construction process, but the
  • End anchoring elements support directly on the respective concrete of the prestressed concrete elements, is according to a
  • Support end anchoring elements in each case via a support element in the concrete, which is preferably concreted into the concrete. This results in a uniform introduction of high local forces in the concrete, which reduces stress peaks in the concrete and beyond creep and
  • the support element can a
  • the support element can be configured in various ways, with a dome-like shape being particularly advantageous
  • clamping means optionally at least
  • the clamping devices are protected against environmental influences and in particular corrosion.
  • the anchoring means may optionally be unscrewed and reused after curing of the composite mass, resulting in the extremely high number of clamping and
  • Anchoring means is not negligible.
  • Prestressed concrete elements is increased or decreased.
  • the prestressed concrete elements insertion channels for Introducing clamping devices of adjacent prestressed concrete elements.
  • the present invention thus does not work with "external bias", but preferably aims at the clamping means being passed through the respective prestressed concrete elements. This allows a uniform distribution of the clamping forces in a relatively small number of clamping devices. It is particularly preferred that the cross section of the insertion opposite to the
  • Insertion direction of the clamping means increases.
  • the introduction of the clamping means in the insertion channels is much easier.
  • the insertion channels can be produced, for example, by means of suitable die rods.
  • sheaths or the like can be provided, which is to achieve a good
  • the prestressed concrete elements may in principle have any basic shape in the context of the present invention.
  • the prestressed concrete elements are annular (for example as
  • rotationally symmetrical body such as cylinders, cones or
  • Paraboloid are formed. This results in a particularly advantageous structural behavior and a simpler
  • Prestressed concrete elements can be lying in a classic
  • Concrete bed to be concreted This not only simplifies the production process, but also allows smooth contact surfaces on the later upper and lower sides of the prestressed concrete elements.
  • Prestressed concrete element are arranged in at least two layers. This makes it possible, with comparatively thin To work clamping devices, which in turn significantly simplifies the threading of the clamping means in the adjacent prestressed concrete elements and the tightening and anchoring of the clamping means. Furthermore, results in a particularly uniform
  • Clamping means layers are to be understood, which are parallel to the outer peripheral wall of the respective
  • the entire tower-like structure can essentially consist of
  • the present invention also contemplates hybrid structures in which, for example, a lower portion of the tower-shaped structure is composed of prestressed concrete elements while an upper portion of the tower-shaped structure is formed by one or more sections of steel.
  • the adjacent tower section made of steel has a concrete section, in particular concrete ring, through which the elongated clamping means and optionally
  • additional concrete section can be reduced surface pressure on the joint and at the same time increase the rigidity of the tower section made of steel. Furthermore, in particular in the case of a concrete ring, as a result of the transverse forces of the concrete ring caused by the tension forces, a suppression of the concrete surrounded by steel, which is the result
  • Tower-shaped structure is defined in claim 13. This allows, as already stated above, a highly automatable mode of operation and a low-slip and thus reliable connection between the respective
  • prestressed concrete elements are concreted standing and are preferably made of self-compacting concrete.
  • Fig. 1 shows schematically a partial sectional view of an embodiment of the tower-shaped supporting structure according to the invention
  • Fig. 2 shows schematically the standing production of a
  • Fig. 3 shows schematically a detail view of Fig. 2;
  • Fig. 4 shows schematically a compound of a
  • Fig. 5 shows schematically a further connection of a
  • Prestressed concrete element with a steel tower section Prestressed concrete element with a steel tower section.
  • FIG. 1 A partial sectional view of a tower-like structure 1 according to the present invention is schematically illustrated in FIG.
  • the tower-shaped supporting structure can serve in the context of the present invention for a variety of purposes,
  • the tower-shaped supporting structure 1 is constructed by stacking and clamping together a plurality of prestressed concrete elements 2, 4, the prestressed concrete elements 2, 4 each having a multiplicity of elongate tensioning means 10 in the form of tensioning wires or tensioning strands. As best seen in Fig. 1, are the clamping means 10 of the
  • Prestressed concrete element 4 out and anchored there under tension. In this case, all or only a majority of the respective clamping means may be anchored in the adjacent prestressed concrete element 4.
  • the clamping means 10 each have at their anchoring end a positive locking means, which in the present
  • Embodiment designed as a thread can also be performed in the manner of a ribbing, and the clamping means 10 are anchored in the adjacent prestressed concrete element 4 each have an end anchoring element 12, which is designed in the present embodiment as a clamping nut.
  • This clamping nut is screwed onto the thread of the clamping means 10.
  • end anchoring elements which are pressed onto the positive locking means.
  • the bonding and bracing of the prestressed concrete elements 2 and 4 takes place, for example, as follows.
  • Prestressed concrete element 2 is initially in a vertical position positioned so that the free ends of the clamping means 10 are vertically upwards and the region of the joint 32 is aligned horizontally. Subsequently, the
  • Prestressed concrete element 2 placed on the clamping means 10 of the prestressed concrete element 2 are inserted into through holes within the adjacent prestressed concrete element 4 until finally the adjacent prestressed concrete element 4 is seated in the region of the joint 32 on the prestressed concrete element 2.
  • the threaded, free ends of the clamping means 10 are slightly out of the through holes of the adjacent prestressed concrete element 4.
  • clamping means 10 are gripped by a suitable clamping device, such as a hydraulic press.
  • a suitable clamping device such as a hydraulic press.
  • the thread of the clamping means 10 allows that only a very short
  • Projection of the clamping means 10 is required to grip them reliably by the clamping device.
  • the tensioning device applies a defined tensile stress to the tensioning means 10. After reaching the defined tension, the anchoring elements 12 and clamping nuts 12 are tightened so that they to the tensioning means 10.
  • Clamping device can be drained, with the
  • Anchoring elements 12 clearance ensures the maintenance of the bias state between the prestressed concrete elements 2 and 4.
  • the end anchoring elements 12 are accessible from a cavity 1 '(bottom in Fig. 1) in the interior of the tower-like structure 1, wherein the tower-shaped supporting structure, for example, as a hollow tower with a circular or other
  • the end anchoring elements 12 or clamping nuts are each supported by a supporting element 14 in the concrete, which is concreted in the present embodiment.
  • Support member 14 may have different shapes, but is preferably formed in the manner of a dome or "bell", which ensures a uniform load transfer in the concrete.
  • tensioning means 10 in the area between the joint 32 and the end anchoring elements 12 are optionally anchored in the prestressed concrete element 4 via a composite mass 16 (for example a composite mortar).
  • a composite mass 16 for example a composite mortar.
  • the end anchoring elements 12 preferably have a through hole (e.g., slot) for the escape of composite 16, for ease of compression and to ensure complete compression.
  • this composite compound also ensures reliable corrosion protection, alternatively or additionally other corrosion protection measures can be taken, such as greasing, coating, etc.
  • the end anchoring elements 12 can be provided with a suitable cover to further improve the corrosion protection.
  • Prestressed concrete element 2 adjacent to the connecting joint 30th weakened or even canceled ("debounding").
  • debounding the stretching of the clamping means can be extended and thus avoid damage to the concrete when tightening the clamping means 10.
  • the clamping means 10 are arranged in the present embodiment in two layers in the respective prestressed concrete element 2, 4.
  • high clamping forces can be applied in the tower-shaped supporting structure 1, with the tower-shaped supporting structure 1 being able to be designed in the region of the end anchoring of the clamping means 10, as shown in FIG. 1, each with an enlarged cross section.
  • one or more clamping means 10 can be "debounded" as needed.
  • FIG. 1 A possible method for producing the prestressed concrete elements 2, 4 is shown schematically in FIG. In this case
  • Flange plates 40 are provided, between which the
  • the clamping means 10 can be released from the flange plates 40, so that the
  • a self-leveling leveling compound 8 can be provided on the top of the prestressed concrete elements 2, 4 after concreting. This balancing mass is extreme
  • FIG. 2 The detail I shown in FIG. 2 is shown enlarged in FIG. Fig. 3 shows that when manufacturing the
  • Prestressed concrete elements 2 through holes 20 are provided, in the later the tensioning means 10 can be introduced.
  • These passage openings 20 can be provided for example by cladding tubes, but also by suitable die rods, wherein the die rods can be pulled after a first solidification de concrete to form the through holes 20.
  • This compound operates on the same basic principle as a connection between two prestressed concrete elements, namely in which the clamping means 10 of the prestressed concrete element 2 is guided in the adjacent tower section 6 made of steel and anchored there under tension.
  • the clamping means 10 are in this embodiment in the region of the joint 34 over the "a" marked length "debounded", wherein the length a can be up to 1 m and more. Furthermore, additional anchoring means 30 are provided in this embodiment, which positively anchored in the prestressed concrete element 2, to the adjacent
  • Anchoring means 30 are debounded in the upper area. They can be formed by threaded rods with clamping nuts or the like.
  • FIG. 4 A further embodiment of a connection between a prestressed concrete element 2 and an adjacent steel tower section 6 is shown schematically in FIG. This corresponds to the basic principle of that shown in Fig. 4
  • the adjacent steel tower cutout 6 has a concrete section 6 ',
  • the mold section 6 is rotated by 180 °, aligned vertically and the concrete ring, preferably made of self-compacting concrete, concreting from above onto the steel ring.
  • a concrete ring preferably made of self-compacting concrete, concreting from above onto the steel ring.

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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)
  • Sustainable Energy (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

La présente invention décrit une structure porteuse (1) en forme de tour, creuse au moins par endroits, présentant une pluralité d'éléments de béton précontraint (2, 4) reliés les uns aux autres, dans laquelle les éléments de béton précontraint (2) présentent chacun de nombreux dispositifs de mise en tension (10) allongés, notamment des câbles ou torons, dont la majorité est guidée dans un élément de béton précontraint (4) situé à proximité et y est ancrée par une contrainte de tension, caractérisée en ce que les dispositifs de mise en tension (10) présentent au moins à une extrémité un élément à complémentarité de forme et les dispositifs de mise en tension (10) sont ancrés dans l'élément de béton précontraint (4) situé à proximité par au moins un élément d'ancrage d'extrémité (12) qui est relié au dispositif de mise en tension (10) par l'élément à complémentarité de forme.
EP12728275.4A 2011-07-18 2012-06-18 Structure porteuse en forme de tour Withdrawn EP2734689A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011079314A DE102011079314A1 (de) 2011-07-18 2011-07-18 Turmförmiges Tragwerk
PCT/EP2012/061562 WO2013010738A1 (fr) 2011-07-18 2012-06-18 Structure porteuse en forme de tour

Publications (1)

Publication Number Publication Date
EP2734689A1 true EP2734689A1 (fr) 2014-05-28

Family

ID=46319776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12728275.4A Withdrawn EP2734689A1 (fr) 2011-07-18 2012-06-18 Structure porteuse en forme de tour

Country Status (6)

Country Link
US (1) US20140150359A1 (fr)
EP (1) EP2734689A1 (fr)
CN (1) CN103732842A (fr)
BR (1) BR112014001152A2 (fr)
DE (1) DE102011079314A1 (fr)
WO (1) WO2013010738A1 (fr)

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WO2013010738A1 (fr) 2013-01-24
BR112014001152A2 (pt) 2017-02-21
DE102011079314A1 (de) 2013-01-24
US20140150359A1 (en) 2014-06-05
CN103732842A (zh) 2014-04-16

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