NO331387B1 - A COMPOSITION OF ORTOGONAL TENSIONS IN A TANK, AND DISTANCE ELEMENTS FOR USE IN THE SAME COMPOSITION - Google Patents

A COMPOSITION OF ORTOGONAL TENSIONS IN A TANK, AND DISTANCE ELEMENTS FOR USE IN THE SAME COMPOSITION Download PDF

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Publication number
NO331387B1
NO331387B1 NO20100968A NO20100968A NO331387B1 NO 331387 B1 NO331387 B1 NO 331387B1 NO 20100968 A NO20100968 A NO 20100968A NO 20100968 A NO20100968 A NO 20100968A NO 331387 B1 NO331387 B1 NO 331387B1
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Norway
Prior art keywords
beams
cross
composition
tank
plates
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NO20100968A
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Norwegian (no)
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NO20100968A1 (en
Inventor
Arne Barrett Sele
Trygve Johannes Lund
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Aker Engineering & Technology
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Priority to NO20100968A priority Critical patent/NO331387B1/en
Priority to PCT/NO2010/000383 priority patent/WO2011053151A1/en
Priority to EP10779857A priority patent/EP2494256A1/en
Priority to KR1020127013617A priority patent/KR20120099061A/en
Priority to RU2012121253/06A priority patent/RU2536473C2/en
Priority to US13/505,255 priority patent/US20130043240A1/en
Priority to JP2012536732A priority patent/JP2013509548A/en
Priority to CN201080049122XA priority patent/CN102812283A/en
Publication of NO20100968A1 publication Critical patent/NO20100968A1/en
Publication of NO331387B1 publication Critical patent/NO331387B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • F17C1/08—Integral reinforcements, e.g. ribs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0157—Polygonal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/052—Size large (>1000 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/01—Reinforcing or suspension means
    • F17C2203/011—Reinforcing means
    • F17C2203/013—Reinforcing means in the vessel, e.g. columns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/228—Assembling processes by screws, bolts or rivets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/016—Preventing slosh
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0118—Offshore
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0118—Offshore
    • F17C2270/0121—Platforms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0134—Applications for fluid transport or storage placed above the ground

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Description

EN SAMMENSTILLING AV ORTOGONALE SPENNINGSBJELKER I EN TANK, OG AVSTANDSELEMENTER FOR ANVENDELSE I NEVNTE SAMMENSTILLING AN ASSEMBLY OF ORTHOGONAL TENSION BEAMS IN A TANK, AND SPACERS FOR USE IN SAID ASSEMBLY

Oppfinnelsens tekniske område Technical field of the invention

Den foreliggende oppfinnelsen angår tanker for lagring og transportering av fluider slik som hydrokarboner, inkludert lavtemperatur flytende naturgass. Dette inkluderer tanker for skip og flytende offshore-strukturer utsatt for bølgelaster så vel som tyngdekraftbaserte offshore-strukturer og tanker på land utsatt for jordskjelv. The present invention relates to tanks for storing and transporting fluids such as hydrocarbons, including low-temperature liquefied natural gas. This includes tanks for ships and floating offshore structures exposed to wave loads as well as gravity-based offshore structures and tanks on land exposed to earthquakes.

Bakgrunn for oppfinnelsen Background for the invention

Tanker kan bli utformet i mange forskjellige konfigurasjoner, sånn som kuler, sylindre, kjegler og generelt skjellformede, så vel som prisme-former. Den viktigste fordelen med prisme-former er at de ligger nærmere hverandre, noe som minimerer volumet som slike tanker opptar. Enkle prismatiske tanker er strukturelt mye mindre effektive siden de baserer seg på bøyevirkning for mobilisering av styrke. Skjell utvikler styrke gjennom direkte spenning i planet til skjellet. Dette utvikler høyere styrke med den samme mengden av materiale. Tanks can be designed in many different configurations, such as spheres, cylinders, cones and generally shell-shaped, as well as prismatic shapes. The main advantage of prism shapes is that they are closer together, which minimizes the volume that such tanks occupy. Simple prismatic tanks are structurally much less efficient since they rely on bending action for the mobilization of strength. Shell develops strength through direct tension in the plane of the shell. This develops higher strength with the same amount of material.

En mer effektiv måte å designe prisme-former er å inkorporere interne stag (spenningsbjelker). Ved å utvikle stag som det viktigste middelet for å begrense den interne lasten eller trykket, er slike prismatisk oppstagede tanker sammenlignbare med skjellformede i strukturell effektivitet. WO 2006/001711 A2 beskriver slike tanker og er herved inkorporert ved referanse. A more efficient way to design prism shapes is to incorporate internal braces (tension beams). By developing struts as the primary means of limiting the internal load or pressure, such prismatic braced tanks are comparable to shell-shaped in structural efficiency. WO 2006/001711 A2 describes such tanks and is hereby incorporated by reference.

Bortsett fra å utvikle strukturell styrke demper staget sloshing, indusert av bølgebevegelser. De horisontale lastene på spenningsstaget grunnet sloshing blir absorbert av bjelkene og for å begrense bøying må bjelkene være knyttet sammen ved hvert krysningspunkt. Bjelkene er organisert i vekslende ortogonale lag. Apart from developing structural strength, the brace mitigates sloshing, induced by wave motion. The horizontal loads on the tension strut due to sloshing are absorbed by the beams and to limit bending, the beams must be tied together at each crossing point. The beams are organized in alternating orthogonal layers.

JP 53120312 U viser en alternativ løsning for sammenkobling av ortogonale bjelker i et krysningspunkt. JP 53120312 U shows an alternative solution for connecting orthogonal beams at a crossing point.

Sloshing-krefter forårsaker vinkelforskyving av stagene i forskjellige lag. Vridningsmomentene indusert i de korte og søyleformede elementene ville vært ekstremt store i forhold til en praktisk geometri for tverrsnittet av de korte og søyleformede elementene hvis disse tilveiebringer en rigid sammenholding. For å tilveiebringe vridningsfleksibilitet i kombinasjon med tilstrekkelig skjærstyrke og motstandsdyktighet for bøying sideveis, blir det anvendt et korsformet tverrsnitt for det korte og søyleformede elementet. Det korsformede tverrsnittet kan være av variabel tykkelse og kan også inkorporere spor eller fordypninger for å optimalisere spenningsfordelingen i forhold til styrke og utmatting. Tverrsnittet kan også bli modifisert for å inkorporere alt fra tre eller flere plater sentrert i en felles akse. Sloshing forces cause angular displacement of the struts in different layers. The torsional moments induced in the short and columnar members would be extremely large in relation to a practical cross-sectional geometry of the short and columnar members if these provide a rigid connection. To provide torsional flexibility in combination with sufficient shear strength and resistance to lateral bending, a cruciform cross-section is used for the short and columnar member. The cruciform cross-section can be of variable thickness and can also incorporate grooves or recesses to optimize stress distribution in relation to strength and fatigue. The cross-section can also be modified to incorporate anything from three or more plates centered on a common axis.

De korte og søyleformede elementene kan være forankret ved å sveise en eller flere baseplater med plass til bolter, sveiser eller andre midler for tilknytning til staget. The short and columnar elements can be anchored by welding one or more base plates with space for bolts, welds or other means of connection to the strut.

Formålet for oppfinnelsen The object of the invention

Formålet for den foreliggende oppfinnelsen er å tilveiebringe en kobling mellom ortogonale kryssende bjelker i vekslende lag. Denne koblingen må være i stand til å absorbere relative vinkelforskyvinger av bjelker i vekslende lag og på same tid forankre bjelkene til de transversale bjelkene over og under. The purpose of the present invention is to provide a connection between orthogonal crossing beams in alternating layers. This connection must be able to absorb relative angular displacements of beams in alternating layers and at the same time anchor the beams to the transverse beams above and below.

Sammendrag av oppfinnelsen Summary of the invention

Formålet for den foreliggende oppfinnelsen blir oppnådd ved å koble sammen transverse stag med flere korte og søyleformede elementer som er fleksible i vridning og rigide i bøying og skjær. Oppfinnelsen ifølge den foreliggende patentsøknaden omfatter: En sammenstilling av ortogonale spenningsbjelker i vekslende horisontale lag for anvendelse i en tank, hvori i det minste noen av krysningspunktene mellom de ortogonale spenningsbjelkene er knyttet sammen med hverandre ved hjelp av avstandselementer med bøyestivhet og vridningsfleksibilitet, nevnte avstandselementer er orientert vinkelrette på et plan gjennom et horisontalt lag av spenningsbjelker. The purpose of the present invention is achieved by connecting transverse struts with several short and columnar elements which are flexible in torsion and rigid in bending and shear. The invention according to the present patent application includes: An assembly of orthogonal tension beams in alternating horizontal layers for use in a tank, in which at least some of the crossing points between the orthogonal tension beams are connected to each other by means of spacers with bending stiffness and torsional flexibility, said spacers are oriented perpendicular to a plane through a horizontal layer of tension beams.

Overnevnte sammenstilling er fortrinnsvis festet ved bolter til stegene på spenningsbjelkene. The above-mentioned assembly is preferably attached by bolts to the steps on the tension beams.

Et avstandselement for anvendelse i en sammenstilling som beskrevet over, hvori nevnte element har to grunnplater knyttet sammen ved hjelp av flere plater kryssende gjennom en felles akse og hvor denne aksen krysser begge av de to grunnplatene. A spacer element for use in an assembly as described above, in which said element has two base plates joined together by means of several plates crossing through a common axis and where this axis crosses both of the two base plates.

Et foretrukket avstandselement er et hvor platene som krysser har et korsformet tverrsnitt og har fortrinnsvis en felles akse vinkelrett i forhold til grunnplatene. A preferred spacing element is one where the plates that cross have a cross-shaped cross-section and preferably have a common axis perpendicular to the base plates.

Kort beskrivelse av tegningene Brief description of the drawings

Ytterligere detaljer ved oppfinnelsen vil bli beskrevet under med referanse til de eksemplifiserende utførelsesformene vist skjematisk i de vedlagte tegningene, hvori: Figur 1 viser et perspektiv av et korsformet avstandselement; Figur 2 viser et horisontalt tverrsnitt inkludert en plantegning av grunnplaten; Figur 3 viser noen alternative tverrsnitt av et avstandselement; Figur 4 viser et korsformet avstandselement fra siden; Figur 5 viser en sammenstilling av korsformede avstandselementer og bjelker forankret ved hjelp av avstandselementene. Figur 6 viser et perspektiv av innsiden til en tank som har en sammenstilling av spenningsbjelker. Further details of the invention will be described below with reference to the exemplary embodiments shown schematically in the accompanying drawings, in which: Figure 1 shows a perspective of a cross-shaped spacer element; Figure 2 shows a horizontal cross-section including a floor plan of the base plate; Figure 3 shows some alternative cross-sections of a spacer element; Figure 4 shows a cross-shaped spacer element from the side; Figure 5 shows an assembly of cross-shaped spacer elements and beams anchored using the spacer elements. Figure 6 shows a perspective of the inside of a tank which has an assembly of tension beams.

Detaljert beskrivelse av tegningene Detailed description of the drawings

Figur 1 viser et perspektiv av avståndselementet bestående av plater 1 som danner et korsformet kort og søyleformet element og to grunnplater 2 med hull 3 for å ta imot bolter for å forankre avstå ndselementet til de kryssende stag/bjelker. Avstå ndselementet kan bli fremstilt ved smiing/støping eller fremstilt fra sveisede plater, ekstruderte eller rullede profiler. Figur 2 viser avstandselementet bestående av det korsformede korte og søyleformede elementet vist i tverrsnitt, en av grunnplatene 2 vist i planet og bolthullene 3 vist med innsatte bolter. Figure 1 shows a perspective of the spacer element consisting of plates 1 forming a cross-shaped short and columnar element and two base plates 2 with holes 3 to receive bolts for anchoring the spacer element to the crossing struts/beams. The spacer element can be produced by forging/casting or produced from welded plates, extruded or rolled profiles. Figure 2 shows the spacer element consisting of the cruciform short and columnar element shown in cross-section, one of the base plates 2 shown in plane and the bolt holes 3 shown with inserted bolts.

Figur 3 viser alternative utførelsesformer av avstå ndselementet. Figure 3 shows alternative embodiments of the distance element.

Figur 4 viser et avstandselement fra siden med plater 1 som danner et korsformet kort og søyleformet element, to grunnplater 2 med hull 3 for å ta imot bolter. Figur 5 viser typiske detaljer av en sammenstilling av stag/bjelker 4 vist som I-bjelker og korsformede avstandselementer 5. Figur 6 viser et perspektiv av innsiden til en tank, som har en sammenstilling av spenningsbjelker 4 knyttet sammen ved hjelp av korsformede avstandselementer 5 ved deres krysningspunkter. Figure 4 shows a spacer element from the side with plates 1 forming a cross-shaped short and columnar element, two base plates 2 with holes 3 to receive bolts. Figure 5 shows typical details of an assembly of struts/beams 4 shown as I-beams and cruciform spacers 5. Figure 6 shows a perspective view of the inside of a tank, which has an assembly of tension beams 4 connected by means of cruciform spacers 5 at their intersection points.

Claims (4)

1. En sammenstilling av ortogonale spenningsbjelker (4) i vekslende horisontale lag for anvendelse i en tank,karakterisert vedat i det minste noen av krysningspunktene mellom de ortogonale spenningsbjelkene er knyttet sammen med hverandre ved hjelp av avstandselementer (5) med bøye-stivhet og vridningsfleksibilitet, nevnte avstandselementer er orientert vinkelrette på et plan gjennom et horisontalt lag av spenningsbjelker.1. An assembly of orthogonal tension beams (4) in alternating horizontal layers for use in a tank, characterized in that at least some of the crossing points between the orthogonal tension beams are connected to each other by means of spacer elements (5) with bending stiffness and torsional flexibility , said spacing elements are oriented perpendicular to a plane through a horizontal layer of tension beams. 2. En sammenstilling ifølge krav 1, hvori avstandselementene er festet ved bolter til stegene på spenningsbjelkene.2. An assembly according to claim 1, in which the distance elements are attached by bolts to the steps on the tension beams. 3. Et avstandselement (5) for anvendelse i en sammenstilling ifølge krav 1 eller 2,karakterisert vedat nevnte element har to grunnplater (2) knyttet sammen ved hjelp av flere plater (1) kryssende gjennom en felles akse og hvor denne aksen krysser begge av de to grunnplatene.3. A spacer element (5) for use in an assembly according to claim 1 or 2, characterized in that said element has two base plates (2) connected together by means of several plates (1) crossing through a common axis and where this axis crosses both the two base plates. 4. Et avstandselement ifølge krav 3, hvori platene som krysser har et korsformet tverrsnitt og har fortrinnsvis en felles akse vinkelrett på grunnplatene.4. A spacer element according to claim 3, in which the plates that cross have a cross-shaped cross-section and preferably have a common axis perpendicular to the base plates.
NO20100968A 2009-10-29 2010-07-02 A COMPOSITION OF ORTOGONAL TENSIONS IN A TANK, AND DISTANCE ELEMENTS FOR USE IN THE SAME COMPOSITION NO331387B1 (en)

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NO20100968A NO331387B1 (en) 2009-10-29 2010-07-02 A COMPOSITION OF ORTOGONAL TENSIONS IN A TANK, AND DISTANCE ELEMENTS FOR USE IN THE SAME COMPOSITION
PCT/NO2010/000383 WO2011053151A1 (en) 2009-10-29 2010-10-27 Beam assembly and spacer elements
EP10779857A EP2494256A1 (en) 2009-10-29 2010-10-27 Beam assembly and spacer elements
KR1020127013617A KR20120099061A (en) 2009-10-29 2010-10-27 Beam assembly and spacer elements
RU2012121253/06A RU2536473C2 (en) 2009-10-29 2010-10-27 Beam assembly and intermediate element
US13/505,255 US20130043240A1 (en) 2009-10-29 2010-10-27 Beam assembly and spacer elements
JP2012536732A JP2013509548A (en) 2009-10-29 2010-10-27 Beam assembly and spacer element
CN201080049122XA CN102812283A (en) 2009-10-29 2010-10-27 Rod Assemblies and Divider Elements

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NO20100968A NO331387B1 (en) 2009-10-29 2010-07-02 A COMPOSITION OF ORTOGONAL TENSIONS IN A TANK, AND DISTANCE ELEMENTS FOR USE IN THE SAME COMPOSITION

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US3124265A (en) * 1961-12-06 1964-03-10 Bertels
GB1050954A (en) * 1963-02-15 1966-12-14
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NO330085B1 (en) * 2007-02-20 2011-02-14 Aker Engineering & Technology A tank structure for storing and transporting fluids
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NO20100968A1 (en) 2011-05-02
CN102812283A (en) 2012-12-05
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