EP1766163A1 - Structure tubulaire, et procede pour eriger cette structure tubulaire - Google Patents

Structure tubulaire, et procede pour eriger cette structure tubulaire

Info

Publication number
EP1766163A1
EP1766163A1 EP05767861A EP05767861A EP1766163A1 EP 1766163 A1 EP1766163 A1 EP 1766163A1 EP 05767861 A EP05767861 A EP 05767861A EP 05767861 A EP05767861 A EP 05767861A EP 1766163 A1 EP1766163 A1 EP 1766163A1
Authority
EP
European Patent Office
Prior art keywords
segment
structure according
end portion
outer tube
segments
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Withdrawn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
EP05767861A
Other languages
German (de)
English (en)
Inventor
Thomas Stihl
Johann Matuschek
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.)
SEH Engineering GmbH
Original Assignee
Krupp Stahlbau Hannover 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 Krupp Stahlbau Hannover GmbH filed Critical Krupp Stahlbau Hannover GmbH
Publication of EP1766163A1 publication Critical patent/EP1766163A1/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Withdrawn legal-status Critical Current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
    • E04H12/02—Structures made of specified materials
    • E04H12/08—Structures made of specified materials of metal
    • 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
    • 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
    • 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
    • F05B2230/00—Manufacture
    • F05B2230/50—Building or constructing in particular ways
    • 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
    • F05B2240/913—Mounting on supporting structures or systems on a stationary structure on a mast
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention relates to a tubular structure provided with means for increasing its buckling strength, and to a method of manufacturing a vertical axis tubular structure comprising at least two segments.
  • Tubular structures of this type are used, for example, in the production of slender fireplaces, large tank systems in the petrochemical industry and towers for wind turbines. While in chimney construction heights up to 100 m and more with diameters of z. B. occur 2.50 m, large tanks have z. B. a height of only about 20 m to 30 m in the same order of diameters of e.g. 10 m to 30 m. For high-performance wind turbines with outputs of up to 5 MW, tower heights of more than 100 m are currently being planned for diameters of approx. 3 m to 6 m, whereby the construction of offshore wind farms with several hundred wind turbines per park is planned.
  • tubular steel towers have a conical base and a cylindrical upper part and / or are assembled from prefabricated pipe segments (eg, "wind turbines” by Erich Hau, 2nd edition, Springer-Verlag, pp 375-378).
  • the technical problem underlying the invention is to design the tubular structure of the type described at the outset in such a way that it is distinguished by a high buckling rigidity despite its lower weight and reduced use of steel.
  • tubular structure according to the invention by the Characteristics of claim 1.
  • a method according to the invention for constructing the structure results from the features of claim 18.
  • the sandwich or composite construction according to the invention of the cylindrical structure allows a low weight in spite of high load capacity.
  • the wall thicknesses of the metal tubes are reduced, stiffening elements for the proof of stability but can be completely eliminated, the use of high-strength structural steels is possible from an economic point of view.
  • the structure of the invention is characterized by a good damping behavior due to the elastomer layer, whereby the dynamic stress is favorably beilt.
  • Figure 1 is a schematic, partially broken longitudinal section through a portion of a tubular structure according to the invention.
  • FIG. 2 shows a partially broken longitudinal section through a structure composed of two segments according to FIG. 1 in a joint area and in a larger scale;
  • FIGS. 3 to 5 are enlarged details X, Y and Z of Figure 2;
  • Fig. 6 is a schematic section along the line VI-VI of Fig. 2; and Fig. 7 and 8 are each a front and side view of a wind turbine with a tower made of the tubular structure of FIG. 1 to 6.
  • the structure 1 shows a longitudinal section of a tubular structure 1 according to the invention, which is arranged coaxially to a vertical longitudinal axis 2.
  • the structure 1 contains an outer tube 3 and an inner tube 4 arranged in the outer tube 3.
  • the two tubes 3 and 4 have circular cross-sections with diameters which decrease slightly from the bottom to the top in FIG. 1 and are therefore slightly conical.
  • the outer tube 3 has an outer circumferential surface 5 and an inner circumferential surface 6.
  • the inner tube 4 is provided with an outer lateral surface 7 and an inner lateral surface 8. Both tubes 3, 4 are preferably arranged substantially the same length and coaxially to the longitudinal axis 2 and have the same Basiswin ⁇ angle.
  • the inner diameter of the outer tube 3 is everywhere slightly larger than the outer diameter of the inner tube 4, for which reason a hollow cylindrical gap 9 of constant width d is formed between the inner circumferential surface 6 of the outer tube 3 and the outer circumferential surface 7 of the inner tube 4.
  • this gap 9 is filled with an elastomer layer 10 which firmly adheres to the inner circumferential surface 6 and the outer lateral surface 7.
  • the tubular structure 1 consists entirely of a two-shell composite or sandwich body.
  • the outer tube 3 and the inner tube 4 are made of a suitable metal, preferably as structural steel and have maximum outer diameter of z. B. about 700 cm.
  • the wall thickness of the tubes 3, 4 and the width d of the gap 9, the z. B. 0.5 cm to 5 cm, are determined according to the static requirements.
  • the elastomer of the layer 10 is expediently introduced in the liquid state into the gap 9, so that a continuous homogeneous layer is formed, and preferably consists of a two-component polymer which cures at the usual ambient temperatures within a short time and the two steel tubes 3, 4 then firmly together.
  • the elastomer layer 10 serves mainly to stabilize and less the transmission or the compensation of parallel to the longitudinal axis 2 acting shear forces.
  • the width d of the gap 9 is chosen to be so small with a maximum of about 5 cm that form no cracks caused by shrinkage effects. Like. In the elastomer layer 10 and therefore an additional reinforcement can be avoided. Nevertheless, due to the full-surface bedding excellent stabilization of the structure 1 is achieved against buckling. Compared with single, solid walls having steel tubes, which have the same buckling strength, the structure 1 has a lower weight and a smaller steel content. It is also advantageous that the elastomer layer 10 acts in directions transverse to the longitudinal axis 2 damping and the production of two tubes 3, 4 with relatively small wall thicknesses is cost-effective.
  • structures 11 are provided in such a case, which are composed of at least two segments 12 and 14, are coaxial with a longitudinal axis 15 and axially adjoin one another in a joint region 16. Both segments 12 and 14 are formed as shown in FIG. 1 and each have an inner tube 17 and 18, an outer tube 19 and 20 and an intermediate elastomer layer 21 and 22 on.
  • a connecting layer 23 which, like the layers 21, 22 preferably consists of a suitable elastomer.
  • connection to be selected in the abutting region 16, which is why, in the following, only one exemplary embodiment currently considered best will be explained in greater detail with reference to FIGS. 2 to 6.
  • the inner tube 17 of the segment 12 includes an end portion 17a facing the segment 14, while the associated outer tube 19 has an end portion 19a axially projecting beyond the end portion 17a.
  • the diameters of the end sections 17a and 20a are substantially the same, while the diameter of the end section 19a is greater and the diameter of the end section 18a is smaller than the diameter of the end sections 17a, 20a. This makes it possible, the lower end portion of the segment 14 in FIG. 2 coaxial with the in Fig. 2 upper end portion of the z. B.
  • the cavity 24 is bounded by opposing, a radial cavity stage forming end faces of the segments 12, 14, the z. B. of annular sealing elements 25, 26 (Fig. 4) are formed, the axially filled with the elastomer layers 21, 22 filled, the gap 9 of FIG. 1 corresponding column of the segments 12, 14 axially.
  • the cavity 24, which in the described arrangement has substantially the same width as the gap 9 according to FIG. 1, is preferably completely or partially filled with an elastomer forming the connecting layer 23, which adheres so firmly to the respective lateral surfaces that the connecting layer 23 transmitted in the axial direction of the segments 12, 14 acting thrust forces and can accommodate the lying above each shock region 16 weight.
  • the dimensions of the portion of the cavity 24 lying between the end sections 17a, 20a are dimensioned such that no or only negligibly small pressure transmission through the elastomer takes place at this point, the connecting layer 23 simultaneously forms a direction acting in the direction of the longitudinal axis 15 Thrust spring, as the Elasticity modules of steel and the elastomers used here z. For example 200,000: 200.
  • this thrust spring can also be dimensioned over the axial length of the sections involved in their formation of the respective Mantel ⁇ surfaces.
  • the adhesive force between the elastomer layers 21, 22 and the connection layer 23 on the one hand and the lateral surfaces of the inner and outer tubes 17 to 20 on the other hand suitably dimensioned so that in case of failure not the adhesion of the Elastomers on steel, but the cohesion breaks in the molecular structure of the layers 21, 22 and 23.
  • the diameters of the inner tube 17 and the outer tube 20 are suitably the same size and dimensioned so that the end portion 20a, if necessary, in the axial direction of the End section 17a can put on and thereby a backup is given by positive engagement.
  • a tubular structure made of more than two axially connected segments in the example of FIG. 2 after the assembly of the segment 14, a third, fourth, etc. segment is placed on the segment 14.
  • the same connection technique can be used as described with reference to FIGS. 2 to 5.
  • the diameter of the inner tube of a lower segment corresponds to the diameter of the outer tube of the subsequent upper segment.
  • the diameter of the tubular structure would gradually decrease in the upward direction.
  • the elastomer layers 10, 21 and 22 are preferably made on the basis of polyurethane.
  • a two-component mixture of a polyol and isocyanate has proven to be particularly advantageous for this purpose, both of which are mixed in the liquid state and introduced into the gaps 9 or the cavities 24, in order then to chemi Hardening reactions in about 10 min to 20 min.
  • a problem in the assembly of a plurality of, according to FIG. 2 superimposed segments consists in the dimensional accuracy.
  • the longitudinal axes of the individual segments should have an angular deviation from the vertical longitudinal axis 15 of less than z. B. 1 °.
  • the inner tubes (eg 17, 18 in Fig. 2) associated with each other are provided in the abutting area 16 with inwardly projecting, only shown in Fig. 2 and Fig. 6 Consoles 28, 29 to provide.
  • actuators 30 are mounted in the form of hydraulic or pneumatic cylinder / piston assemblies 30 with piston rods 31 which extend parallel to the longitudinal axis 15 and against the lower edges of the brackets 29 one above located segment (Fig. 14) can be placed.
  • accelerados 30 are arranged distributed in the circumferential direction in each case. After placing an upper segment on a lower segment, it is therefore possible, for. B.
  • the cylinder / piston arrangements of course, other adjusting devices 30, provided for example with threaded spindles or screws and if necessary motor-driven devices can be provided.
  • the segments 12, 14 described with reference to Figures 2 to 6 are preferably prefabricated in the factory by suitably positioning the inner and outer tubes 17-20 forming them and the gaps formed thereby between them at one end with seals (e.g. 25). Subsequently, the lateral surfaces delimiting the column are dried. Thereafter, the gaps are filled with the liquid state polymer, and after curing of the polymer, the remaining seals (e.g., 26) are applied.
  • seals e.g. 25
  • Fig. 7 and 8 show as an exemplary embodiment, the construction of a tubular structure with a vertical longitudinal axis in the form of a tower 33 of a wind turbine, the z. B. on a foundation 34 and FIG. 8 z. B. is firmly anchored in the seabed 35.
  • the tower 33 is composed of the two segments 12 and 14 according to FIGS. 2 to 6, for which reason a detail X 'of FIGS. 7 and 8 identifies the impact area 16 enlarged in FIG. 2.
  • a nacelle 36 is arranged, which carries a rotor 37 with a horizontal axis of rotation. Since wind turbines of this type are well known, further details need not be discussed.
  • the construction and erection of the tower 33 can be carried out, for example, as follows:
  • the lower segment 12 is anchored on the foundation 34 or on the seabed 35 in a manner known per se and aligned such that the longitudinal axis of the segment 12 is limited to a tolerable angular deviation of z. B. a maximum of 1 ° is arranged vertically. Subsequently, the segment 14 is placed with its lower end portion on the upper Endabschitt of the segment 12 and initially coaxially centered on the formation of the cavity 24.
  • the segment 14 is raised by means of the actuators 30 to axially space the two segments 12, 14 so that on the one hand the radial (horizontal) step of the cavity 24 ( Figure 2) has a desired axial height, and on the other hand the longitudinal axis of the segment 14 to a tolerable angular deviation of z. B. a maximum of 1 ° is arranged vertically.
  • the cavity 24 will now see ver ⁇ in Fig. 2 at the upper end with a seal 38.
  • This preferably has the also apparent from Fig. 5, triangular or from top to bottom and from the inside out obliquely sloping shape, so that rainwater and the like flows out without stowing.
  • the lateral surfaces of the participating segments 12, 14 which bound the cavity 24 are then preferably dried, for example using dry and warm air, which is blown into the cavity 24 from below in FIG.
  • the cavity 24 is closed at its lower in Fig. 2 end with a particular apparent from Fig. 3 seal 39.
  • This seal 39 is preferably provided with a filling opening, to which a spray nozzle or the like is now attached, in order to inject the liquid polymer into the cavity 24 under pressure.
  • the polymer is then allowed to cure, after which the spray nozzle is removed.
  • the actuators 30 are also relieved by z. B. the piston rods 31 are retracted again into the associated cylinder. This ensures that the upper Segment 14 is supported only by the adhesion forces between the connecting layer 23 and the associated lateral surfaces on the lower segment 12 and the connecting layer 24 acts at pressure-free formation of the radial stage as a pure thrust spring.
  • the effective lengths L (FIG. 2) of the end sections 18a, 19a can be z. B. 70 cm to 100 cm, so that the thrust spring has afensiv ⁇ length of about 1.5 m to 2 m.
  • brackets 28, 29 and adjusting devices 30 need only be dimensioned such that they bear the mounting loads of a single segment (eg 14). They serve only as temporary aids for the
  • Such a fuse is rather, as explained above, formed by those end portions (eg, 17a, 20a in Fig. 2) whose end faces are themselves in the form of the tubular structure, but not as a fuse for a failure facing each other after assembly.
  • the brackets 28, 29 and actuators 30 not in each, but only z. B. in every second or third joint area 16 provide.
  • the tower 33 according to FIGS. 7 and 8 is composed of more than two segments 12, 14, the further segments are assembled and aligned analogously to the above description.
  • the invention is not limited to the described embodiment, which can be modified in many ways. This applies in particular to the selected in each case form of the tubular structures and their segments, which may be circular cylindrical or conical and may be provided with varying wall thicknesses. Furthermore, instead of the described adjusting devices 30, other means for aligning the segments can be provided. If necessary, the structures and their segments can be made of other metals, especially of stainless steel, if necessary. B. should be desirable in the case of a storage tank because of the inclusion of aggressive media. The ones used for the elastomer and compound layers Materials may be varied depending on the individual case and elastic moduli of z. B. at least about 200 MPa to 2000 MPa and a Haftver ⁇ like to the metal used by z. B. 5 MPa and more.
  • elastomer layer 10 or 21, 22 is z.
  • polyurethane based on polyesters or polyethers in conjunction with an isocyanate or diisocyanate optionally with suitable fillers to achieve desired physical properties.
  • carboxylic acids od.
  • the metal pipes could, if necessary, be provided with coatings at least on their free lateral surfaces in order to obtain special properties.
  • the polymer can be poured into one or more locations in the column 9 and cavities 24, injected or otherwise filled as needed.
  • vent opening at at least one suitable location, which is optionally closed after curing.
  • seals 25, 26, 38 and 39 thixotropic seals are preferably used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Energy (AREA)
  • Wood Science & Technology (AREA)
  • Sustainable Development (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

L'invention concerne une structure tubulaire (1) comprenant des moyens pour agrandir sa résistance au voilement, et un procédé pour produire ou ériger cette structure tubulaire. La structure tubulaire (1) selon l'invention comprend : un tuyau externe (3) ; un tuyau interne (4) qui est disposé dans le tuyau externe (3), ces deux tuyaux (3, 4) étant espacés radialement l'un de l'autre par un interstice (9), et ; une couche élastomère (10) qui remplit l'interstice (9) de manière homogène et qui adhère aux surfaces latérales (6, 7) adjacentes à l'interstice (9). Le procédé selon l'invention consiste à assembler plusieurs segments ainsi formés.
EP05767861A 2004-07-09 2005-07-07 Structure tubulaire, et procede pour eriger cette structure tubulaire Withdrawn EP1766163A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004033558 2004-07-09
PCT/DE2005/001214 WO2006005323A1 (fr) 2004-07-09 2005-07-07 Structure tubulaire, et procede pour eriger cette structure tubulaire

Publications (1)

Publication Number Publication Date
EP1766163A1 true EP1766163A1 (fr) 2007-03-28

Family

ID=34993327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05767861A Withdrawn EP1766163A1 (fr) 2004-07-09 2005-07-07 Structure tubulaire, et procede pour eriger cette structure tubulaire

Country Status (5)

Country Link
EP (1) EP1766163A1 (fr)
DE (1) DE112005001118A5 (fr)
NO (1) NO20070712L (fr)
RU (1) RU2007104928A (fr)
WO (1) WO2006005323A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2576927B1 (fr) 2010-05-25 2016-06-15 Siemens Aktiengesellschaft Construction de chemise segmentée, en particulier pour une fondation destinée à une installation d'éolienne
US9062651B2 (en) 2010-09-03 2015-06-23 Grant Vent Power Llc Offshore wind power system
EP2535485A1 (fr) * 2011-06-14 2012-12-19 Siemens Aktiengesellschaft Connexion de segments métalliques d'une tour
DE102011054567A1 (de) 2011-10-18 2013-04-18 SIAG Engineering GmbH Turmbauwerk, Element zur Herstellung des Turmbauwerk und Verfahren zur Errichtung des Turmbauwerks
EP2816177B1 (fr) * 2013-05-08 2017-09-06 FM Energie GmbH & Co. KG Amortisseurs de vibrations pour des tours d'éoliennes
DE102013019046B4 (de) 2013-11-15 2015-09-10 PWS GmbH Doppelwandiges Großrohr, Verwendung eines Großrohres und Verfahren zur Herstellung eines doppelwandigen Großrohrs
NO20160271A1 (no) * 2016-02-16 2016-11-04 Comrod As Anordning og fremgangsmåte for innfesting og oppretting av en komposittmast.
US11319930B2 (en) * 2016-04-15 2022-05-03 Pur Wind Aps Gasket for wind turbine
NL2017594B1 (en) * 2016-10-10 2018-04-16 Delft Offshore Turbine B V Offshore structure comprising a coated slip joint and method for forming the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1182963A (en) * 1967-08-24 1970-03-04 Gen Electric & English Elect Improvements in or relating to Means for Joining Together Column Sections.
DE3046420A1 (de) * 1980-12-10 1982-07-15 Gemmecke, Kurt, Ing.(grad.), 2400 Lübeck Kupplung fuer eine loesbare, biegesteife verbindung fuer rohre, insbesondere fuer konstruktionsmaste
FR2582706B1 (fr) * 1985-05-28 1989-09-01 Cahors App Elec Poteau, notamment pour supporter des lignes electriques ou telephoniques
FR2695451B1 (fr) * 1992-09-10 1994-10-14 Atochem Elf Sa Tube métallique flexible gaine polyfluorure de vinylidène à flexion améliorée.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006005323A1 *

Also Published As

Publication number Publication date
RU2007104928A (ru) 2008-08-20
WO2006005323A1 (fr) 2006-01-19
DE112005001118A5 (de) 2007-05-24
NO20070712L (no) 2007-02-08

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