EP3208385A1 - Ossature - Google Patents

Ossature Download PDF

Info

Publication number
EP3208385A1
EP3208385A1 EP17154407.5A EP17154407A EP3208385A1 EP 3208385 A1 EP3208385 A1 EP 3208385A1 EP 17154407 A EP17154407 A EP 17154407A EP 3208385 A1 EP3208385 A1 EP 3208385A1
Authority
EP
European Patent Office
Prior art keywords
structure according
nodes
bars
longitudinal bars
steel
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Withdrawn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
EP17154407.5A
Other languages
German (de)
English (en)
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.)
Europoles GmbH and Co KG
Original Assignee
Europoles GmbH and Co KG
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 Europoles GmbH and Co KG filed Critical Europoles GmbH and Co KG
Publication of EP3208385A1 publication Critical patent/EP3208385A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/52—Submerged foundations, i.e. submerged in open water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/0004—Nodal points
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/027—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto steel 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
    • E04H12/08—Structures made of specified materials of metal
    • E04H12/10—Truss-like structures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0091—Offshore structures for wind turbines

Definitions

  • the invention relates to a structure with interconnected at nodes steel pipes, which are designed as longitudinal bars and serving as a stiffening diagonal bars.
  • structure is generally used in this application for a spatial truss. Structures of this type are used for example as a foundation and foundation structure for offshore wind turbines and referred to as so-called jackets. This is a truss-like construction with foundation piles rammed into or fixed to the seabed.
  • offshore wind turbines have rated outputs of more than 5 MW and a rotor diameter of the order of 150 m. Accordingly, the size of the supporting structures required as foundation or foundation also increases.
  • Conventional structures for wind turbines are constructed similar to lattice masts and therefore comprise a large number of nodes at which the individual bars are connected to each other. The node structures are complex and have a variety of intersections.
  • the invention is therefore an object of the invention to provide a structure that is less expensive to produce.
  • the invention is based on the idea of replacing a conventional supporting structure, which has been used as a foundation structure for an offshore wind turbine, by a modified supporting structure, which is optimized with regard to production.
  • a conventional supporting structure which has been used as a foundation structure for an offshore wind turbine
  • a modified supporting structure which is optimized with regard to production.
  • Usually in trusses comparatively slender struts are used, resulting in a variety of nodes and intersection points at which a plurality of bars or struts are interconnected.
  • the invention provides a structure with a reduced number of nodes and struts, whereby the problem of the hitherto required complex three-dimensional welding is eliminated or at least considerably reduced.
  • the provision of a reduced number of nodes causes an increase in mass, which is compensated by manufacturing advantages.
  • the nodes are designed as components prefabricated by a welding process or a casting process. Accordingly, the nodes can be manufactured separately from the steel tubes, so that the prefabricated components are connected to one another at a location near the coast, resulting in the structure according to the invention.
  • the knots can be produced, inter alia, by welding, however, the nodes provided for the supporting structure according to the invention are characterized by a simple construction in which three-dimensional intersections are preferably dispensed with.
  • the knots have flanges for screwing to the steel pipes.
  • the preferably circular flanges are known in the art Way provided with through holes, so that the flanges can be bolted to matching flanges of steel pipes.
  • the flanges of the knots and the flanges of the steel pipes are preferably made of steel.
  • the nodes may be made of steel plates or steel sheets, optionally with reinforcements extending perpendicular to the plane of the plate.
  • the nodes may have the flanges for connecting the steel pipes. Such a construction of the nodes is particularly simple and optimal in terms of cost and manufacturing cost.
  • the nodes can have tabs for screwing with the steel tubes.
  • the steel tubes may have matching tabs, so that corresponding tab connections can be formed.
  • one-off, two-section or multi-section bolt-through tab connections can be provided for coupling the steel tubes and the nodes.
  • the tabs provided at the nodes and at the steel tubes are preferably made of steel.
  • a very particularly preferred variant of the structure according to the invention provides that the nodes made of steel have a concrete envelope.
  • This concrete sheath protects the components made of steel from corrosion, so that no costly corrosion protection measures such as the use of sacrificial anodes are required, otherwise metals such as zinc or aluminum are released into the environment.
  • the nodes are made of concrete and have a reinforcement and / or a tension reinforcement.
  • a node may, for. Example, be made as a one-piece, integral finished part, alternatively, a node may also be composed of several precast components, which together form the node.
  • a knot made of concrete can be made of reinforced concrete or prestressed concrete.
  • connection elements such as flanges and / or flaps.
  • a further increase in efficiency in the manufacture of the structure according to the invention can be achieved if the nodes arranged in a horizontal plane are identical in each case. This considerably reduces the number of different components needed, thus requiring fewer molds and other devices required for manufacture. In this way it is possible, e.g. to provide only two different types of nodes, which are provided either for a lower level of the structure or for an upper level of the structure, with the diagonal bars extending from the lower to the upper level.
  • the nodes can be interconnected by at least approximately horizontally arranged horizontal bars.
  • the horizontal bars thus connect all nodes that are in one plane.
  • a preferred embodiment of the structure according to the invention provides that it has a lower, longitudinal bars and diagonal bars exhibiting floor and an upper, only longitudinal bars exhibiting floor.
  • Such a structure thus comprises two floors, of which only the lower has the diagonal bars for stiffening.
  • the longitudinal bars are dimensioned so that they can pass on the loads transmitted by the wind turbine to the ground.
  • the supporting structure according to the invention can have only one floor, namely the lower floor, which is formed by the longitudinal bars, the diagonal bars and optionally horizontal bars.
  • the supporting structure according to the invention may have a triangular basic shape formed by three longitudinal bars.
  • the longitudinal bars extend obliquely upward from three points forming the corners of a triangle.
  • a star-shaped can be placed on piles or patch stiffening.
  • This stiffening forms a transition between in the subsoil, in particular the seabed, rammed piles and the structure of the structure.
  • This star-shaped stiffener may be made of steel or alternatively of concrete, preferably, the stiffener is hollow.
  • the stiffener may for example have a rectangular, that is a box-shaped cross-section.
  • As an alternative to the star-shaped stiffener can also be provided a triangular stiffener.
  • the supporting structure according to the invention may have on its upper side a triangular transition element.
  • the transition element forms the upper end of the structure and serves as the basis for the wind turbine, in particular for a mast of the wind turbine.
  • the transition element has recesses.
  • the transition element may be formed as hollow as analogous to the mentioned underside stiffener and made of steel or concrete.
  • a made of concrete transition element may have a reinforcement and / or a clamping reinforcement.
  • a preferred variant of the supporting structure according to the invention is designed as a carrier for a wind turbine, wherein the longitudinal bars are subjected to bending and the diagonal bars to train or pressure and / or bending.
  • Fig. 1 is a perspective view showing a supporting structure 1, which consists of steel tubes 2, which are connected to each other at node 3.
  • Fig. 2 shows a side view of the structure 1
  • Fig. 3 is a view of the structure 1 from above
  • Fig. 4 shows the stiffener 14
  • Fig. 5 shows a section along the line V - V of Fig. 4
  • the steel tubes 2 comprise both longitudinal bars 4 and diagonal bars 5 and horizontal bars 6.
  • the Structure 1 a triangular basic shape, which is formed by three identical longitudinal bars 4.
  • Fig. 1 recognizes that between two longitudinal bars only one connecting the longitudinal bars 4 crossing-free diagonal bar 5 is arranged.
  • the structure 1 comprises three arranged in a plane longitudinal bars 4 and three diagonal bars 5 and three horizontal bars 6.
  • the diagonal bars 5 are arranged so that they extend from a lower node 8 at the foot of a Longitudinal rods 4 extend to an upper node 9 of an adjacent longitudinal bar 4. All three diagonal bars 5 are arranged identically, that is, they extend in the view of Fig. 1 each from the lower node counterclockwise to the upper node. This arrangement is merely an example. Alternatively, two diagonal bars may extend from a lower or upper node, wherein the arrangement of the third diagonal bar is arbitrary.
  • the structure 1 comprises the three illustrated lower nodes 8, which are identical in each case.
  • the structure 1 comprises the three upper nodes 9.
  • the lower nodes 8 and the upper nodes 9 differ from each other, with all the upper nodes 9 and all lower nodes 8 being identical in each case. Accordingly, only a minimum number of nodes is required for the manufacture of the structure 1.
  • Above the lower floor 7 is an upper floor 10, which is formed of three longitudinal bars 11.
  • the transition element 12 is designed as a concrete component and has an internal reinforcement (not visible) and a plurality of recesses 13. In the assembled state, the transition element 12 receives a mast of a wind turbine.
  • the lower nodes 8 are placed on a star-shaped stiffener 14 and attached thereto.
  • the stiffener 14 is mounted on three vertically arranged piles 15, of which only their upper end is shown and which are mounted on the seabed or rammed into the seabed.
  • the structure 1 is designed so that between two adjacent longitudinal bars 4, three of which form the lower floor 7, only one of the longitudinal bars 4 connecting crossing arranged diagonal bar 5 is arranged. In this way, only a diagonal bars 5 exhibiting floor 7, whereby the number of required components, the number of different components and the number of nodes 3 can be minimized.
  • the longitudinal bars 4, 11, the diagonal bars 5 and the horizontal bars 6 are formed as steel tubes, which are connected to the standardized, prefabricated nodes 3, 8, 9, wherein all lower nodes 8 are identical. This differs from the upper nodes 9, which, however, are also identical in each case.
  • Fig. 6 shows an upper node 16 which is made of sheet steel (steel plates) and a plurality of annular flanges 17, by means of which the node 16 with the longitudinal bars 4, 11, the horizontal bars 6 and a single diagonal bar 5 are connected.
  • the said bars each have a matching flange 18 so that the node 16 and the mentioned bars can be connected by bolts by means of the flanges 17, 18.
  • Fig. 7 which shows a view of the knot 16 cut along the line VII-VII, that the sheet forming the knot has longitudinal members 19 acting as reinforcement on both sides.
  • Fig. 8 shows an optional development of the node 16, which has a casing 20 made of concrete, whereby a corrosion protection is ensured.
  • FIGS. 9 and 10 show a node 21 with a gusset plate 22, to which two parallel tabs 23 and perpendicular thereto two further parallel tabs 24 are arranged.
  • the tabs 23 and 24 are used for attachment of longitudinal bars 4, 11 and a horizontal bar 6.
  • the longitudinal bars 4, 11 and the horizontal bar 6 each have parallel tabs 38, 39, 40, the shape and size of the Tabs 23, 24 of the gusset plate 22 is adapted so that the longitudinal bars 4, 11 and the horizontal bar 6 with the tabs 23, 24 of the gusset plate 22 can be bolted.
  • Fig. 10 shows a cut, rotated view of the node 21.
  • the node 21 is in the FIGS. 9 and 10 only schematically illustrated to exemplify a tab connection. At the node 21 a total of five bars can be connected, namely two longitudinal bars, a diagonal bar and two horizontal bars, however, the FIGS. 9 and 10 simplified drawings in which not all tabs are shown.
  • the node 21 can optionally be
  • Fig. 11 is a sectional view and shows a node 25, which is designed as a precast concrete part.
  • the node 25 is provided with a reinforcement, which may be formed either as a slack reinforcement or as a prestressed reinforcement.
  • welded joints can be provided. All fasteners can optionally be protected by a concrete sheathing.
  • the structure 1 can be made comparatively simple and inexpensive.
  • the steel tubes (longitudinal bars 4, diagonal bars 5, horizontal bars 6) prefabricated, as well as the nodes, which are either partially or entirely prefabricated either steel or concrete.
  • the structure 1 is pre-assembled and towed in this pre-assembled state to the intended position in the sea, placed on the piles and attached to it.
  • the Fig. 12 and 13 show an embodiment of a node 26 similar to that in FIG Fig. 6 shown node 16 is formed.
  • the knot 26 is an upper node having two horizontally extending flanges 27, 28 and an obliquely downwardly extending flange 29.
  • the two horizontal Flanges 27, 28 are used for fixing horizontal bars, the flange 29 serves to attach a diagonal bar.
  • the node 26 comprises a gusset plate 30 made of a plate material, which has, in addition to the flanges 27, 29, an upper flange 31 for securing a longitudinal bar of an upper floor and a lower flange 32 for fixing a longitudinal bar of a lower level.
  • the gusset plate 30 has both the flanges 27, 29 and the flanges 31, 32.
  • the flange 28, however, is connected via a further gusset plate 33 with the gusset plate 30.
  • the two gusset plates 30, 33 include an oblique angle.
  • the node 26 comprises further stiffening ribs in the region of the flanges and in the region of the attachment between the gusset plates 30, 33, which for reasons of clarity in the Fig. 12 and 13 are not shown.
  • the node 26 is made as a welded construction, that is, the two gusset plates 30, 33 with each other and the flanges 27, 28, 29, 31, 32 are connected to the respective gusset plate via welds.
  • the Fig. 14 and 15 show a structure 34, similar to that in the Fig. 1 and 2 shown structure 1 is constructed.
  • the structure 34 comprises an upper floor 10 with longitudinal bars 11, which are attached to a transition element 35.
  • the transition element is formed as a solid triangular component.
  • the lower ends of the longitudinal rods 11 are each attached to a node 26, to which also the triangular forming horizontal bars 6 are attached. From each node 26 extends a diagonal bar 5 and a longitudinal bar 4.
  • the diagonal bars 5 and the longitudinal bars 4 are attached to lower nodes 36, which are made analogous to the upper node 26 of plate material.
  • the lower nodes 26 are attached to the star-shaped stiffener 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Rod-Shaped Construction Members (AREA)
EP17154407.5A 2016-02-18 2017-02-02 Ossature Withdrawn EP3208385A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016102831.2A DE102016102831A1 (de) 2016-02-18 2016-02-18 Tragwerk

Publications (1)

Publication Number Publication Date
EP3208385A1 true EP3208385A1 (fr) 2017-08-23

Family

ID=57960351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17154407.5A Withdrawn EP3208385A1 (fr) 2016-02-18 2017-02-02 Ossature

Country Status (2)

Country Link
EP (1) EP3208385A1 (fr)
DE (1) DE102016102831A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019218358A1 (de) * 2019-11-27 2021-05-27 Thyssenkrupp Steel Europe Ag Gitterstruktur für einen Turm einer Windenergieanlage und Turm einer Windenergieanlage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492270A (en) * 1980-05-02 1985-01-08 Global Marine, Inc. Method of installing and using offshore well development and production platforms
JPH10100129A (ja) * 1996-10-01 1998-04-21 Kawaden Co Ltd プレストレス高強度コンクリート節付パイルの成形型
EP2511423A1 (fr) * 2011-04-15 2012-10-17 Siemens Aktiengesellschaft Procédé pour assembler une tour de type offshore jacket

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987003318A1 (fr) * 1985-12-02 1987-06-04 Irete S.A. Dispositif pour la prise d'empreinte d'elements de structures immergees et procede mettant en oeuvre un tel dispositif
GB201206400D0 (en) * 2012-04-11 2012-05-23 Offshore Group Newcastle Ltd Offshore structure installation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492270A (en) * 1980-05-02 1985-01-08 Global Marine, Inc. Method of installing and using offshore well development and production platforms
JPH10100129A (ja) * 1996-10-01 1998-04-21 Kawaden Co Ltd プレストレス高強度コンクリート節付パイルの成形型
EP2511423A1 (fr) * 2011-04-15 2012-10-17 Siemens Aktiengesellschaft Procédé pour assembler une tour de type offshore jacket

Also Published As

Publication number Publication date
DE102016102831A1 (de) 2017-08-24

Similar Documents

Publication Publication Date Title
DE602005002760T2 (de) Windkraftanlageturm, vorgefertigtes metallisches Wandteil zum Gebrauch in diesem Turm, und Verfahren zur Herstellung dieses Turms
EP3724407B1 (fr) Fondation pour une éolienne
EP2932095B1 (fr) Élément de transition destiné à être disposé entre des portions exécutées différemment d'une tour d'éolienne et tour d'éolienne équipée dudit élément de transition
EP1631722A2 (fr) Fondations pour installation d'energie eolienne
EP2522780A1 (fr) Fondation offshore pour éolienne
EP2839098B1 (fr) Pylônes en treillis pour installations éoliennes et procédé pour ériger un tel pylône en treillis
EP2333163A1 (fr) Structure offshore
EP3320161B1 (fr) Tour d'une éolienne
EP4008858B1 (fr) Tour
EP3115514B1 (fr) Ossature
DE102018121024A1 (de) Fundament für eine Windkraftanlage
EP3208385A1 (fr) Ossature
DE102020125441A1 (de) Fundament für eine Windkraftanlage
EP4222321B1 (fr) Fondation d'une éolienne
DE102016102213A1 (de) Verfahren zum Errichten eines Windkraftturms einer Windkraftanlage mittels eines Krans, Windkraftturm sowie Stahlsegment für einen Windkraftturm einer Windkraftanlage
WO2002012657A1 (fr) Module de construction destine a la fabrication de ponts, de batiments et de tours, par exemple dans des installations eoliennes
DE102021125328A1 (de) Ankerkorb für ein Fundament für eine Windkraftanlage
DE102005014025A1 (de) Als Stahlfachwerkkonstruktion ausgebildeter Turm, vorzugsweise für Windkraftanlagen
DE212021000266U1 (de) Verbindungsstruktur zur Realisierung einer genauen Positionierung einer betongefüllten Raumstruktur aus mehrgliedrigen Stahlrohren und einer Tragplattform
DE102014010212B3 (de) Gitterträgerverbindung
EP2700749B1 (fr) Structure de support offshore, notamment pour une éolienne
DE10217727B4 (de) Wandbauelement
EP4248039A1 (fr) Fondation pour tour d'éolienne
DE102021122183A1 (de) Fundament für einen Turm für eine Windkraftanlage
DE202005006228U1 (de) Dachkonstruktion für Gebäude, insbesondere für Industriegebäude mit großen Spannweiten

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20180224