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EP2744955B1 - Procédé et dispositif permettant la transition entre une partie de tour montante et une partie de tour en béton précontraint - Google Patents

Procédé et dispositif permettant la transition entre une partie de tour montante et une partie de tour en béton précontraint Download PDF

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Publication number
EP2744955B1
EP2744955B1 EP12724559.5A EP12724559A EP2744955B1 EP 2744955 B1 EP2744955 B1 EP 2744955B1 EP 12724559 A EP12724559 A EP 12724559A EP 2744955 B1 EP2744955 B1 EP 2744955B1
Authority
EP
European Patent Office
Prior art keywords
section
component
shaped
cross
tower section
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.)
Not-in-force
Application number
EP12724559.5A
Other languages
German (de)
English (en)
Other versions
EP2744955A2 (fr
Inventor
Xiaofeng Tang
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.)
Ed Zueblin AG
Original Assignee
Ed Zueblin AG
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Publication date
Application filed by Ed Zueblin AG filed Critical Ed Zueblin AG
Publication of EP2744955A2 publication Critical patent/EP2744955A2/fr
Application granted granted Critical
Publication of EP2744955B1 publication Critical patent/EP2744955B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E04H12/08—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
    • E04H12/08—Structures made of specified materials of metal
    • 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
    • E04H12/16—Prestressed structures

Definitions

  • the present invention relates to a connection between two construction sections of a tower - preferably a tower of a wind turbine - with each other.
  • the coupling point is the transition between a generally prestressed reinforced concrete tower section and the rising structure, which is usually made of steel.
  • Wind turbine towers with tower sections made of different materials are also referred to as hybrid towers.
  • the lower section of concrete may consist of prefabricated concrete elements that are joined together, or of a monolithic concrete component.
  • the construction section made of concrete material is often preloaded. This is done by means of tendons freely accessible in the tower interior or by means of tendons, which lie within the concrete cross-section and are cast after preloading. By casting the cavity between the tendon and cladding tube with an alkaline potting the tendon is particularly well protected against corrosion.
  • the position of the tendon in the concrete cross section allows a centric biasing force with respect to the heavy line of the concrete cross section; There are no additional bending loads.
  • the rising tower section made of steel may consist of several tubular tower segments, which are either made in one piece or consist of several joined segments over the circumference of the section. Centric stress conditions also prevail in this steel ring cross section.
  • the upper Tower section made of high-strength, age-resistant plastic - for example, glass fiber amplifier plastic - be made.
  • A1 known construction is arranged at the upper end of the concrete tower segment, an annular head beam through which the inside of the tower lying, free tendons are guided and anchored.
  • the rising steel structure has a one-sided flange. Through the head bar extends an inclined bore through which anchoring bolts are guided. These connect steel flange and concrete component and are each fastened with two nuts. This solution allows the replacement of the anchor bolt, but also here creates an offset in the line of action of the vertical forces.
  • an L-shaped, one-sided flange can be formed on the rising steel segment. This is placed on the upper end of the concrete component and anchored directly from the tendon. Because of the high forces occurring and the offset between normal stresses in the steel ring and the load introduction of the preload force of the flange must be made very thick. In addition, it is also necessary in this design for geometric reasons that the concrete cross-section is widened - and that the tendon is warped out of its axis out to the final anchorage out. Due to the curvature of the tendon arise in this construction deflection forces that must also be included in the concrete section.
  • US 2009/0217618 A1 does not describe a hybrid tower, it is the attachment of a steel tower revealed on a concrete foundation. At the lower edge of a steel ring is provided with openings for the implementation of simple fastening bolts. In order to arrange the fastening bolts centrally to the rising tower wall, openings are provided in the tower wall. There is no attachment of tendons required, it eliminates the problem arising from the tendon guide. All known solutions have in common that at this dynamically highly loaded point of the hybrid tower, an offset from the biasing force and the Normalallkraft arises in the steel tower section.
  • the object of the invention is to provide a transitional component and its arrangement at the transition point between prestressed concrete and above rising tower for a hybrid tower - with an upper tower section made of steel or glass fiber reinforced plastic and a lower section of prestressed concrete - to provide the high dynamic Withstands impacts, is compact and economical and simplifies the erection of the tower. Furthermore, the object of the invention comprises Specify method that allows the economic establishment of a hybrid tower by means of the component according to the invention.
  • the invention provides a prefabricated annular or ring segment-shaped component made of steel - or alternaively made of glass fiber reinforced plastic (GRP) - as a transition element.
  • GRP glass fiber reinforced plastic
  • This has the shape of an inverted T in cross section with a vertically or nearly vertically arranged web, which represents the transition to the rising cross section of the upper tower section.
  • In the flange openings are recessed centrally in the ring direction at a defined distance from each other, through which the tendons of the prestressed concrete tower section are performed.
  • the web is preferably recessed in rounded form so as to reduce stress concentrations so that the anchor heads of the tendons can be accommodated.
  • the tendons are threaded through the recesses in the component according to the invention.
  • the transition element is aligned in its final position on the upper edge of the reinforced concrete tower section and potted with non-positive grout.
  • push knobs are arranged in an alternative embodiment below the flange, which are introduced into previously prepared depressions in the concrete. After hardening of the potting material, the anchor heads are installed and applied a defined biasing force.
  • the anchor heads are fixed, ie the tendons are wedged and the cladding tubes of the tendons filled with - preferably alkaline - injection material.
  • a corrosion protection is attached to the anchor head; this can be done demountable, so that a check of the anchor heads in the course of maintenance is possible at any time.
  • the transition element is connected directly to the reinforced concrete shaft.
  • An additional fitting for anchoring or attachment of the steel tower section on the prestressed concrete tower section is not necessary. Since the line of gravity of the steel cross-section is in line with that of the concrete cross-section, there is no offset and thus no resulting Additional load available.
  • the wall of the rising tower and the component thickness of the lower concrete tower section can be minimized and carried out economically.
  • the transition element is ring segment-shaped and can be connected to at least one further (for example two or three or more), in particular identically shaped, ring-segment-shaped transition components to form a closed ring.
  • the interconnected segments together form an annular transition element.

Landscapes

  • 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)
  • Wind Motors (AREA)
  • Bridges Or Land Bridges (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Rod-Shaped Construction Members (AREA)

Claims (8)

  1. Composant (1) de section transversale en forme de T en tant que composant de transition au niveau du point d'accouplement entre une partie inférieure de tour en béton précontraint (7) et la partie de tour montante (6), montée au dessus, dont le déroulement longitudinal est annulaire ou en forme de segment annulaire - et peut être connecté à au moins un autre composant de transition en forme de segment annulaire notamment formé de manière identique, pour produire un anneau fermé,
    caractérisé en ce qu'il présente au centre, en section transversale, et à distance définie les uns des autres dans la direction annulaire, des évidements (3, 5) dans la bride (2) et la nervure (4), à travers lesquels les organes de serrage (8) de la partie inférieure de tour en béton précontraint (7) sont guidés, ancrés et précontraints.
  2. Composant (1) de section transversale en forme de T selon la revendication 1,
    caractérisé en ce que le composant (1) de section transversale en forme de T est fabriqué en acier.
  3. Composant (1) de section transversale en forme de T selon la revendication 1,
    caractérisé en ce que le composant (1) de section transversale en forme de T est fabriqué en un matériau différent, de préférence en plastique renforcé par des fibres de verre.
  4. Composant (1) de section transversale en forme de T selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que le composant (1) de section transversale en forme de T est pourvu en outre de tasseaux de poussée (13) au niveau du côté inférieur de la bride (2).
  5. Agencement d'un composant (1) de section transversale en forme de T selon au moins l'une quelconque des revendications 1 à 4 en tant que composant de transition au niveau du point d'accouplement entre une partie inférieure de tour en béton précontraint (7) et la partie de tour montante (6) montée au-dessus,
    caractérisé en ce que le composant (1) de section transversale en forme de T est disposé avec la bride (2) vers le bas - tournée vers le béton - au niveau du point de transition entre la partie de tour en béton précontraint (7) et la partie de tour montante (6) montée au-dessus et en ce que des organes de serrage (8) de la partie inférieure de tour en béton précontraint (7) sont guidés, ancrés et précontraints à travers des évidements (3, 5) dans la bride (2) et la nervure (4) du composant (1) de section transversale en forme de T.
  6. Agencement d'un composant (1) de section transversale en forme de T selon la revendication 5,
    caractérisé en ce que sa position géométrique au niveau du point de transition est telle que la ligne d'action des organes de serrage (8) coïncide avec la ligne de gravité du composant (1) de section transversale en forme de T et que l'on obtienne ainsi une application de charge centrale.
  7. Agencement d'un composant (1) de section transversale en forme de T selon les revendications 5 et 6,
    caractérisé en ce que des tasseaux de poussée (13) disposés au niveau du côté inférieur de la bride (2) viennent en prise dans des évidements prévus dans le béton (14) de la partie de tour en béton précontraint (7).
  8. Procédé de montage d'une construction de transition d'une tour hybride constituée d'une partie de tour montante (6) et d'une partie inférieure de tour en béton précontraint (7) selon l'une quelconque des revendications 1 à 7, comprenant les étapes suivantes :
    - orientation du composant (1) de section transversale en forme de T sur l'arête supérieure de la partie inférieure de tour en béton précontraint (7) par guidage des organes de serrage (8) à travers les évidements prévus (3, 5) dans la bride (2) et la nervure (4) du composant (1) de section transversale en forme de T,
    - fabrication, par engagement par force, d'un lit de mortier (11) par coulage,
    - après le durcissement du lit de mortier (11) : insertion de têtes d'ancrage (10), ancrage de torons d'organes de serrage (9) de la partie de tour en béton précontraint (7) et serrage d'organes de serrage (8),
    - remplissage de tous les tubes de gainage (12) dans le béton précontraint.
EP12724559.5A 2011-03-14 2012-03-08 Procédé et dispositif permettant la transition entre une partie de tour montante et une partie de tour en béton précontraint Not-in-force EP2744955B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011001250A DE102011001250A1 (de) 2011-03-14 2011-03-14 Vorrichtung und Verfahren für den Übergang zwischen einem Stahlturmabschnitt und einem vorgespannten Betonturmabschnitt
PCT/DE2012/100055 WO2012122976A2 (fr) 2011-03-14 2012-03-08 Procédé et dispositif permettant la transition entre une partie de tour en acier et une partie de tour en béton précontraint

Publications (2)

Publication Number Publication Date
EP2744955A2 EP2744955A2 (fr) 2014-06-25
EP2744955B1 true EP2744955B1 (fr) 2016-01-20

Family

ID=46196969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12724559.5A Not-in-force EP2744955B1 (fr) 2011-03-14 2012-03-08 Procédé et dispositif permettant la transition entre une partie de tour montante et une partie de tour en béton précontraint

Country Status (3)

Country Link
EP (1) EP2744955B1 (fr)
DE (1) DE102011001250A1 (fr)
WO (1) WO2012122976A2 (fr)

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EP2821565A1 (fr) * 2012-02-28 2015-01-07 MS Enertech S.L. Liaison entre une tour d'éolienne et ses fondations, procédé d'exécution de ladite liaison
DK2738322T3 (en) * 2012-11-29 2016-04-18 Siemens Ag Tower construction
DE102013107059B4 (de) 2013-07-04 2018-12-06 SIAG Industrie GmbH Verfahren zur Herstellung und zum Errichten eines Rohrturmbauwerks
CN104408245B (zh) * 2014-11-20 2017-10-03 哈尔滨工业大学 预应力混凝土结构的承载力设计方法
DE102014118251B4 (de) 2014-12-09 2017-05-04 SIAG Industrie GmbH Verfahren zur Herstellung und zum Errichten eines Rohrturmbauwerks
WO2016091500A1 (fr) 2014-12-09 2016-06-16 SIAG Industrie GmbH Construction de porte pour édifice formant tour tubulaire
DE102015115645A1 (de) 2015-09-16 2017-03-16 SIAG Industrie GmbH Verfahren zur Herstellung und zum Errichten eines Rohrturmbauwerks
DE102015115646A1 (de) 2015-09-16 2017-03-16 SIAG Industrie GmbH Türkonstruktion für ein Rohrturmbauwerk
DE102015014458A1 (de) 2015-09-16 2017-03-16 Senvion Gmbh Türkonstruktion für ein Rohrturmbauwerk
CN105673354B (zh) * 2016-03-22 2019-01-01 中国电建集团华东勘测设计研究院有限公司 混凝土塔筒和钢塔筒之间的连接结构
CN105909477B (zh) * 2016-04-20 2018-08-14 明阳智慧能源集团股份公司 一种连接钢塔筒和预应力混凝土塔筒的过渡段结构
CN105971827B (zh) * 2016-06-29 2018-06-19 中国航空规划设计研究总院有限公司 用于混凝土筒与钢筒组合塔架的转换环梁及其施工方法
CN109681390B (zh) * 2018-12-26 2020-08-28 北京天杉高科风电科技有限责任公司 风力发电机组、塔架及其基础结构
CN112112767B (zh) * 2020-09-15 2025-03-14 重庆大学 一种用于风电机组钢混塔筒的组合结构转接构造
CN113027692B (zh) * 2021-03-10 2022-05-17 重庆大学 一种用于风电结构的内环预应力装配式uhpc塔筒段
CN113323812A (zh) * 2021-05-17 2021-08-31 上海电气研砼(木垒)建筑科技有限公司 一种用于装配式混塔的转换法兰
CN113482860A (zh) * 2021-08-27 2021-10-08 北京银泰建构预应力技术股份有限公司 一种用于风电机组的全装配式预应力混凝土塔基

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DE10230273B3 (de) 2002-07-05 2004-02-12 Institut für Fertigteiltechnik und Fertigbau Weimar e.V. Turm einer Windkraftanlage mit einem unteren Teil aus Spannbeton und einem aufgesetzten Stahlrohr
DE102004017006B4 (de) 2004-04-02 2012-03-29 Aloys Wobben Verfahren zum Errichten eines Turmes
WO2007012201A1 (fr) * 2005-07-25 2007-02-01 The University Of Manitoba Systèmes de tours éoliennes composites et procédés de fabrication
DE102007031065B4 (de) 2007-06-28 2011-05-05 Nordex Energy Gmbh Windenergieanlagenturm
US7694476B2 (en) * 2008-02-29 2010-04-13 Structural Components Llc Systems and methods for in-line base plate termination in monopole structures
US8490337B2 (en) * 2009-06-09 2013-07-23 Thomas Nott Word, III Structural flange connection system and method

Also Published As

Publication number Publication date
DE102011001250A1 (de) 2012-09-20
EP2744955A2 (fr) 2014-06-25
WO2012122976A3 (fr) 2012-11-15
WO2012122976A2 (fr) 2012-09-20

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