Metallic industrial piping - Part 3: Design and calculation

This Part of this European Standard specifies the design and calculation of industrial metallic piping systems, including supports, covered by EN 13480.

Metallische industrielle Rohrleitungen - Teil 3: Konstruktion und Berechnung

Dieser Teil dieser Europäischen Norm legt die Konstruktion und Berechnung von metallischen industriellen Rohrleitungen einschließlich ihrer Halterungen, soweit durch EN 13480 abgedeckt, fest.

Tuyauteries industrielles métalliques - Partie 3: Conception et calcul

La présente norme Européenne spécifie la conception et le calcul des réseaux de tuyauteries industrielles métalliques, supports inclus, couverts par l’EN 13480-1.

Kovinski industrijski cevovodi - 3. del: Konstruiranje in izračun

Ta del tega evropskega standarda določa zahteve za konstruiranje in izračun industrijskih kovinskih cevnih sistemov, vključno z nosilci, iz standarda EN 13480.

General Information

Status
Published
Publication Date
12-Dec-2017
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
24-Nov-2017
Due Date
29-Jan-2018
Completion Date
13-Dec-2017

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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
SIST EN 13480-3:2018
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

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels

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..................................................................................

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