EN 13480-3:2017

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Metallische industrielle Rohrleitungen - Teil 3: Konstruktion und BerechnungTuyauteries industrielles métalliques - Partie 3: Conception et calculMetallic industrial piping - Part 3: Design and calculation77.140.75Jeklene cevi in cevni profili za posebne nameneSteel pipes and tubes for specific use23.040.10Železne in jeklene ceviIron and steel pipesICS:Ta slovenski standard je istoveten z:EN 13480-3:2017SIST EN 13480-3:2018en,fr,de01-januar-2018SIST EN 13480-3:2018SLOVENSKI
STANDARDSIST EN 13480-3:2012/A1:2018SIST EN 13480-3:20121DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13480-3
June
t r s y ICS
t uä r v rä r s Supersedes EN
s u v z ræ uã t r s tEnglish Version
Metallic industrial piping æ Part
uã Design and calculationTuyauteries industrielles métalliques æ Partie
u ã Conception et calcul
Industrielle metallische Rohrleitungen æ Teil
uã Konstruktion und Berechnung This European Standard was approved by CEN on
t s June
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
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t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s u v z ræ uã t r s y ESIST EN 13480-3:2018

EN13480æ3:2017(E)Issue1(2017æ06)2ContentsFPageFEuropeanforeword.10 1Scope.12 2Normativereferences.12 3Terms,definitions,symbolsandunits.13 3.1Termsanddefinitions.13 3.2Symbolsandunits.13 4Basicdesigncriteria.15 4.1General.15 4.2Loadings.15 4.2.1General.15 4.2.2Combinationofloads.16 4.2.3Loadsfordimensioning.16 4.2.4Otherloadstobetakenintoaccount.18 4.2.5Designconditions.19 4.3Thickness.22 4.4Tolerances.25 4.5Jointcoefficient.25 4.6Dimensioningofpipingcomponentssubjecttopressure.26 5Designstresses.26 5.1General.26 5.2Timeæindependentnominaldesignstress.27 5.2.1Steelsotherthanausteniticsteels.27 5.2.2Austeniticsteels.27 5.2.3Nickeland/orchromiumalloysteels.28 5.2.4Steelscastings.28 5.2.5Additionalrequirementsforsteelswithnospecificcontrol.28 5.3Timeædependentnominaldesignstress.29 5.3.1General.29 5.3.2Steels.29 5.3.3Nickeland/orchromiumalloysteels.30 6Designofpipingcomponentsunderinternalpressure.30 6.1Straightpipes.30 6.2Pipebendsandelbows.30 6.2.1General.30 6.2.2Symbols.31 6.2.3Requiredwallthicknesses.31 6.3Mitrebends.32 6.3.1General.32 6.3.2Symbols.32 6.3.3Effectiveradiusofmitrebend.33 6.3.4Multiplemitrebends.33 6.3.5Singlemitrebends.34 SIST EN 13480-3:2018

EN13480æ3:2017(E)Issue1(2017æ06)36.3.6Adjacentstraightpipesectionsofmitrebends.34 6.4Reducers.34 6.4.1Conditionsofapplicability.34 6.4.2Specificdefinitions.35 6.4.3Specificsymbolsandabbreviations.35 6.4.4Conicalshells.36 6.4.5Junctionsægeneral.37 6.4.6Junctionbetweenthelargeendofaconeandacylinderwithoutaknuckle.37 6.4.7Junctionbetweenthelargeendofaconeandacylinderwithaknuckle.40 6.4.8Junctionbetweenthesmallendofaconeandacylinder.41 6.4.9Offsetreducers.43 6.4.10Specialforgedreducers.43 6.5Flexiblepipingcomponents.44 6.5.1General.44 6.5.2Expansionjoints.44 6.5.3Corrugatedmetalhoseassemblies.46 6.6Boltedflangeconnections.47 6.6.1General.47 6.6.2Symbols.47 6.6.3Standardflange.47 6.6.4Nonæstandardflange.48 7Designofendsunderinternalpressure.48 7.1Dishedends.48 7.1.1Symbols.48 7.1.2Hemisphericalends.49 7.1.3Torisphericalends.50 7.1.4Ellipsoidalends.51 7.1.5Calculationof.52 7.2Circularflatends.56 7.2.1General.56 7.2.2Symbols.56 7.2.3Unstayedflatcircularendsweldedtocylindricalshells/pipes.58 7.2.4Unstayedflatcircularboltedends.65 7.2.5Reinforcementsofopeningsinunstayedflatends.71 8Openingsandbranchconnections.74 8.1General.74 8.2Symbols.74 8.3Limitations.75 8.3.1Thicknessratio.75 8.3.2Openingsinthevicinityofdiscontinuities.77 8.3.3Typesofreinforcement.79 8.3.4Calculationmethod.80 8.3.5Ellipticalopeningsandobliquebranchconnections.80 8.3.6Reinforcingpads.82 8.3.7Dissimilarmaterialofshellandreinforcements.82 8.3.8Extrudedoutlets.82 8.3.9Forgedtee.82 8.3.10Branchesinbendsorelbows.83 8.3.11Screwedæinbranches.83 8.4Isolatedopenings.84 8.4.1General.84 8.4.2Unreinforcedopenings.87 SIST EN 13480-3:2018

EN13480æ3:2017(E)Issue1(2017æ06)48.4.3Reinforcedopeningswithdi/Di<0,8.87 8.4.4Reinforcedsingleopeningswith0,8
EN13480æ3:2017(E)Issue1(2017æ06)511.7.1Hollowcircularattachments.141 11.7.2Rectangularattachments.141 11.8Alternativecalculationmethods.141 12Flexibilityanalysisandacceptancecriteria.141 12.1Basicconditions.141 12.1.1General.141 12.1.2Loadingconditions.142 12.1.3Allowablestresses.142 12.2Pipingflexibility.144 12.2.1General.144 12.2.2Basicconditions.144 12.2.3Displacementstrains.144 12.2.4Displacementstresses.145 12.2.5Stressrange.146 12.2.6Coldpull.146 12.2.7Propertiesforflexibilityanalysis.147 12.2.8Supportingconditions.147 12.2.9Expansionjoints.149 12.2.10Flexibilityanalysis.149 12.3Flexibilityanalysis.151 12.3.1General.151 12.3.2Stressduetosustainedloads.152 12.3.3Stressduetosustainedandoccasionalorexceptionalloads.152 12.3.4Stressrangeduetothermalexpansionandalternatingloads.153 12.3.5Additionalconditionsforthecreeprange.154 12.3.6Stressesduetoasinglenonærepeatedsupportmovement.154 12.3.7Determinationofresultantmoments.155 12.3.8Alternativemethodforstresscalculation.157 12.3.9Reactions.157 12.4Fatigueanalysis.157 12.5Vibration.157 13PipeSupports.158 13.1Generalrequirements.158 13.1.1General.158 13.1.2Classificationofsupports.158 13.1.3Additionaldefinitions.159 13.1.4Boundaries.161 13.1.5Pipesupportsweldedtothepipe.163 13.2Selectionofpipesupports.164 13.2.1General.164 13.2.2Detaildesignofpipesupports.165 13.2.3Supportlocation.166 13.3Constanthangers/basemounted(pedestal)constantsupports.166 13.3.1General.166 13.3.2Loaddeviationfromcalibratedload.166 13.3.3Siteadjustmentofthecalibratedload.166 13.3.4Travelreserve(Overtravel).166 13.3.5Blocking.167 13.3.6IdentificationMarking/Nameplate.167 13.4Variableloadspringhangersandbasemounted(pedestal)variableloadspringsupports.167 13.4.1General.167 SIST EN 13480-3:2018

EN13480æ3:2017(E)Issue1(2017æ06)613.4.2Toleranceonspringrate.168 13.4.3Travelreserve(Overtravel).168 13.4.4Blocking.168 13.4.5Nameplate.168 13.5Rigidstruts.169 13.6Shockarrestors(shockabsorber,snubber).169 13.7Slidingsupports.170 13.8Anchors.170 13.9Documentationofsupports.170 13.10Markingofsupports.170 13.11Manufacturingofpipesupports.170 13.11.1Materialrequirements.170 13.11.2Designtemperaturesforsupportcomponents.171 13.11.3Designdetails.172 13.11.4Determinationofcomponentsizes.173 13.11.5Weldedconnections.174 13.11.6Threadedconnections.176 13.11.7Additionalrequirementsonsprings.177 13.11.8Designdetailsforrigidstruts.177 13.11.9Designdetailsforshockarrestors(shockabsorbers,snubbers).178 13.11.10Designdetailsforshockarrestors(shockabsorbers,snubbers).179 AnnexADynamicanalysis.180 A.1General.180 A.2Analysisbycalculation.180 A.2.1Seismicevents.180 A.2.2Rapidvalveclosure.184 A.2.3Flowinducedvibration.187 A.2.4Safetyvalvedischarge.189 A.2.5Allowablestresses.192 A.3Alternativemeansofdesignverification.192 A.3.1Comparativestudies.192 A.3.2Fullscaletesting.192 A.3.3Reducedscaletesting.192 AnnexBMoreaccuratecalculationofbendsandelbows.193 B.1General.193 B.2Symbolsandunits.193 B.3Requiredwallthickness.194 B.4Calculation.195 B.4.1Calculationofwallthickness.195 B.4.2Stresscalculation.197 AnnexCExpansionjoints.201 C.1Incorporationofexpansionjointsintopipingsystems.201 C.1.1General.201 C.1.2Typesofexpansionjoints.202 C.1.3Designofexpansionjoints.202 C.1.4Designingwithexpansionjoints.203 C.1.5Analysesandcalculation.205 C.1.6Coldpull.206 C.2Maximumspacingforunrestrainedaxiallycompensatedstraightruns.206 C.2.1General.206 C.2.2Calculationrules.206 SIST EN 13480-3:2018

EN13480æ3:2017(E)Issue1(2017æ06)7C.2.3Maximumspacingfordefinedconditions.207 C.3Indicationforthedesignofexpansionjoints.209 C.3.1General.209 C.3.2Informationforthesystemanalyst.209 AnnexDFlanges.210 D.1Purpose.210 D.2Specifictermsanddefinitions.210 D.3Specificsymbolsandabbreviations.211 D.4General.212 D.4.1Introduction.212 D.4.2Useofstandardflangeswithoutcalculation.212 D.4.3Bolting.213 D.4.4Flangeconstruction.215 D.4.5Machining.215 D.4.6Gaskets.215 D.5Narrowfacegasketedflanges.216 D.5.1General.216 D.5.2Boltloadsandareas.219 D.5.3Flangemoments.220 D.5.4Flangestressesandstresslimits.220 D.5.5Narrowfaceflangessubjecttoexternalpressure.226 D.5.6Lapjoints.226 D.5.7Splitringflanges.229 D.6Fullfaceflangeswithsoftringtypegaskets.230 D.6.1Specificsymbolsandabbreviations.231 D.6.2Boltloadsandareas.231 D.6.3Flangedesign.232 D.6.4Fullfaceflangessubjecttoexternalpressure.233 D.7Sealweldedflanges.233 D.8Reversenarrowfaceflanges.234 D.8.1Internalpressure.234 D.8.2Externalpressure.
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