EP0084485B1 - Noeud d'assemblage de structures métalliques tubulaires, notamment pour plates-formes de forage - Google Patents

Noeud d'assemblage de structures métalliques tubulaires, notamment pour plates-formes de forage Download PDF

Info

Publication number
EP0084485B1
EP0084485B1 EP83400066A EP83400066A EP0084485B1 EP 0084485 B1 EP0084485 B1 EP 0084485B1 EP 83400066 A EP83400066 A EP 83400066A EP 83400066 A EP83400066 A EP 83400066A EP 0084485 B1 EP0084485 B1 EP 0084485B1
Authority
EP
European Patent Office
Prior art keywords
stiffening
nodal point
tubular element
stiffening element
tubular
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.)
Expired
Application number
EP83400066A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0084485A1 (fr
Inventor
Pierre Saget
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.)
Francaise D'etudes D'installations Siderurgiques (sofresid) Ste
Sofresid SA
Original Assignee
Francaise D'etudes D'installations Siderurgiques (sofresid) Ste
Sofresid SA
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 Francaise D'etudes D'installations Siderurgiques (sofresid) Ste, Sofresid SA filed Critical Francaise D'etudes D'installations Siderurgiques (sofresid) Ste
Publication of EP0084485A1 publication Critical patent/EP0084485A1/fr
Application granted granted Critical
Publication of EP0084485B1 publication Critical patent/EP0084485B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
    • E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form

Definitions

  • the present invention relates to a node for assembling tubular metal structures, in particular for offshore drilling platforms.
  • Offshore drilling platforms are often made using assemblies of tubular structures. Due to the particularly difficult working conditions of such platforms, which result in particular from the existence of swell, the fatigue life of their components, and especially of the assembly nodes, is of very particular importance. However, the fatigue life is a function of the rigidity of the tubes used in the production of the platforms. This is the reason why we have had to have stiffening elements inside the tubes of the structure, at the locations of the intersections of the tubes or assembly nodes, when the diameter of these tubes allows. These stiffeners, generally made in the form of hoops, constitute a very expensive solution, since their installation requires in particular the production of welds inside the tubes (see for example DE-A-2626867 and US-A- 3134235).
  • the present invention proposes to provide an economical solution, easy to implement and offering all the guarantees of security, to the problems posed by the production of tubular assemblies of all dimensions.
  • a node for assembling tubular metallic structures in particular for drilling platforms, characterized in that it comprises, in the tubular element on which the tubes constituting the node are welded, at least one Welded or cast steel stiffening element, comprising a main cylindrical part coaxial with said tubular element and provided with annular ribs, said stiffening element being hooped in the tubular element with a sufficient hooping rate to prevent its separation from the tubular element.
  • said stiffening element is constituted by the stacking of a plurality of elementary stiffening elements hooped in said tubular element, each of these elementary stiffeners comprising a cylindrical part and annular ribs.
  • weld beads are provided on the end ribs of the stiffening element or elements, in order to seal the enclosures delimited between the ribs relative to the tubular element, these enclosures being able to be then put under overpressure or under vacuum to detect the possible presence of through cracks at the assembly node.
  • the or each stiffening element can be provided with a network of longitudinal stiffeners.
  • Fig. 1 schematically illustrates the tubular structure of a drilling platform to which the invention can be applied.
  • this structure consists of an assembly of tubes 10, 12, of more or less large diameters, and the invention relates to the assembly nodes, such as 14, of this tubular structure.
  • FIG. 2 illustrates a first embodiment of the invention.
  • the stiffening element according to the invention disposed in the tubular element 10, comprises a tubular part 16 coaxial with the tubular element, and annular ribs 18.
  • This stiffening element which can be made in molded or welded steel is hooped in the tubular element 10 with a sufficient hooping rate to avoid its separation by detachment.
  • weld beads 20, 20 ′ are provided on the periphery of the end ribs of the stiffening element. It is thus possible to isolate from the internal bore of the tube 10, and to make watertight vis-à-vis the outside, the capacities 22, delimited between the ribs 18 consecutive. By putting these capacities 22 in depression or in overpressure by injecting a gas therein, for example air, one can detect the through cracks likely to occur in the tubular element 10, at the level of its connection with the tubes 12.
  • the stiffening element is constituted by the stacking of unit elements (two in this example) 24-24 ', each of these elements having the characteristics of the stiffening element of FIG. 2.
  • unit elements two in this example
  • 26 ', 26 " weld beads similar to the beads 20, 20' of FIG. 2, and intended to perform the same functions.
  • the variant shown in FIG. 4 differs from the embodiment illustrated in FIG. 2 in that the stiffening element is provided with diaphragms or stiffening hoops 28, which further increase the rigidity.
  • the stiffening element can also be provided with a network of longitudinal or oblique stiffeners.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
EP83400066A 1982-01-14 1983-01-12 Noeud d'assemblage de structures métalliques tubulaires, notamment pour plates-formes de forage Expired EP0084485B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8200521 1982-01-14
FR8200521A FR2519734A1 (fr) 1982-01-14 1982-01-14 Noeud d'assemblage de structures metalliques tubulaires, notamment pour plates-formes de forage

Publications (2)

Publication Number Publication Date
EP0084485A1 EP0084485A1 (fr) 1983-07-27
EP0084485B1 true EP0084485B1 (fr) 1985-08-14

Family

ID=9269983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83400066A Expired EP0084485B1 (fr) 1982-01-14 1983-01-12 Noeud d'assemblage de structures métalliques tubulaires, notamment pour plates-formes de forage

Country Status (8)

Country Link
US (1) US4907913A (cg-RX-API-DMAC7.html)
EP (1) EP0084485B1 (cg-RX-API-DMAC7.html)
JP (1) JPS58127849A (cg-RX-API-DMAC7.html)
DE (2) DE3360532D1 (cg-RX-API-DMAC7.html)
ES (1) ES518732A0 (cg-RX-API-DMAC7.html)
FR (1) FR2519734A1 (cg-RX-API-DMAC7.html)
MX (1) MX158438A (cg-RX-API-DMAC7.html)
NO (1) NO164493C (cg-RX-API-DMAC7.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010141700A1 (en) * 2009-06-03 2010-12-09 Keystone Engineering, Inc. Pile splice and method of forming a pile splice

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134235A (en) * 1959-11-12 1964-05-26 Jersey Prod Res Co Installation of piling
US3485050A (en) * 1967-10-12 1969-12-23 Shell Oil Co Marine structures
US3550384A (en) * 1969-02-07 1970-12-29 Exxon Production Research Co Lateral restraint of pile within jacket leg
DE2626867C2 (de) * 1976-06-16 1983-03-24 Thyssen Industrie Ag, 4300 Essen Aus Teilen zusammengeschweißtes Rohr
FR2495773A1 (fr) * 1980-12-04 1982-06-11 Petroles Cie Francaise Plate-forme marine munie de moyens de detection d'eventuelles fissures

Also Published As

Publication number Publication date
DE3360532D1 (en) 1985-09-19
FR2519734B1 (cg-RX-API-DMAC7.html) 1984-05-04
JPH049894B2 (cg-RX-API-DMAC7.html) 1992-02-21
ES8401219A1 (es) 1983-12-16
ES518732A0 (es) 1983-12-16
NO164493C (no) 1990-10-10
NO830091L (no) 1983-07-15
EP0084485A1 (fr) 1983-07-27
MX158438A (es) 1989-01-31
JPS58127849A (ja) 1983-07-30
DE84485T1 (de) 1984-03-29
US4907913A (en) 1990-03-13
NO164493B (no) 1990-07-02
FR2519734A1 (fr) 1983-07-18

Similar Documents

Publication Publication Date Title
FR2807138A1 (fr) Element filete tubulaire pour joint filete tubulaire resistant a la fatigue et joint filete tubulaire resultant
EP1257763A1 (fr) Dispositif de protection cathodique des conduites flexibles
FR2549194A1 (fr) Raccord pour circuits a haute pression
FR2512906A1 (fr) Amortisseur hydraulique telescopique a deux tubes
EP0126698B1 (fr) Méthode d'assemblage d'un élément annulaire sur un tube métallique en aluminium ou un de ses alliages
FR2828262A1 (fr) Element de conduite haute pression en tube frette
FR2568979A1 (fr) Assemblage telescopique perfectionne pour reparer des canalisations sous-marines posees a de grandes profondeurs
EP0176407B1 (fr) Collecteur pour échangeur de chaleur, et échangeur de chaleur comprenant ce collecteur
EP0084485B1 (fr) Noeud d'assemblage de structures métalliques tubulaires, notamment pour plates-formes de forage
FR2545147A1 (fr) Ensemble d'accouplements de tube prolongateur marin
EP0043299A1 (fr) Réservoir à suspension antivibratoire
FR2746889A1 (fr) Joint d'etancheite, notamment pour verin pneumatique ou hydraulique
EP3022477A1 (fr) Embout de connexion d'une conduite flexible, et conduite flexible associée
FR2873800A1 (fr) Echangeur de chaleur a assemblage mecanique et joint d'etancheite pour cet echangeur de chaleur
EP0565466A1 (fr) Elément flexible de tuyauterie, notamment pour lignes d'échappement de véhicules automobiles et son procédé de fabrication
FR2559869A1 (fr) Vanne d'arret
FR2672372A1 (fr) Dispositif de jonction etanche entre deux tuyaux cylindriques.
FR2602205A1 (fr) Ensemble de reprise des efforts d'au moins un hauban
EP1443239B1 (fr) Articulation antivibratoire hydraulique à butées axiales, véhicule équipé d'un telle articulation, et procédé de fabrication d'un telle articulation
FR2708983A1 (fr) Bague d'étanchéité destinée à être disposée entre deux brides.
EP0322294B2 (fr) Procédé de montage d'un accumulateur hydropneumatique
FR2509211A1 (fr) Procede de soudage de joints circulaires de tubes et dispositif pour la mise en oeuvre de ce procede
EP1038714B1 (fr) Raccordement entre deux éléments cylinderiques
EP0100578B1 (fr) Raccord de dérivation
WO2000065273A1 (fr) Embout de raccordement de reservoir d'air comprime ou autres gaz a haute pression et circulation interne du fluide

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

Designated state(s): BE DE GB IT NL SE

ITCL It: translation for ep claims filed

Representative=s name: STUDIO KOHLER FONTANA

TCNL Nl: translation of patent claims filed
17P Request for examination filed

Effective date: 19840116

DET De: translation of patent claims
ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE GB IT NL SE

REF Corresponds to:

Ref document number: 3360532

Country of ref document: DE

Date of ref document: 19850919

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19870131

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19880113

BERE Be: lapsed

Owner name: SOC. FRANCAISE D'ETUDES D'INSTALLATIONS SIDERURGIQ

Effective date: 19880131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19880801

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19890131

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910402

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19920113

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19921001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19930112

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930112

EUG Se: european patent has lapsed

Ref document number: 83400066.3

Effective date: 19880913