BS EN 13480-3-2002 金属工业管道 第3部分 计算和设计Metallic industrial piping - design and calculation.pdf

BRITISH STANDARD BS EN 13480-32002 Incorporating Amendment No. 1 Metallic industrial piping Part 3 Design and calculation The European Standard EN 13480-32002, with the incorporation of amendment A12005, has the status of a British Standard ICS 23.040.01 Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Tue May 08 103339 GMT0000 2007, Uncontrolled Copy, c BSI BS EN 13480-32002 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 4 July 2002 BSI 17 December 2005 ISBN 0 580 39879 X National foreword This British Standard is the official English language version of EN 13480-32002, including amendment A12005. It partially supersedes BS 8061993 which will be withdrawn on the publication of BS EN 13480 Parts 1, 2, 3, 4 and 5. The start and finish of text introduced or altered by CEN amendment is indicated in the text by tags “ . Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A12005 is indicated by “. When the reference to this European Standard has been published in the Official Journal of the European Communities OJ, compliance with it will confer a presumption of conity with the essential requirements covered by the standard in respect of the Pressure Equipment Directive. The UK participation in its preparation was entrusted to Technical Committee PVE/10, Industrial piping systems, which has the responsibility to A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users of this publication are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests ined; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 322, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 1605017 December 2005See national foreword Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Tue May 08 103339 GMT0000 2007, Uncontrolled Copy, c BSI PEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13480-3 May 2002 ICS 23.040.01 English version Metallic industrial piping - Part 3 Design and calculation Tuyauteries industrielles mtalliques - Partie 3 Conception et calcul Metallische industrielle Rohrleitungen - Teil 3 Konstruktion und Berechnung This European Standard was approved by CEN on 23 May 2002. Amendment A1 was approved by CEN on 20 July 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions English, French, German. A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any and by any means reserved worldwide for CEN national Members. Ref. No. EN 13480-32002 A12005 E E A1 August 2005 includes amendment A12005 inclut lamendement A12005 enthlt nderung A12005 CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Tue May 08 103339 GMT0000 2007, Uncontrolled Copy, c BSI Contents Foreword......................................................................................................................................................................6 1Scope ..............................................................................................................................................................7 2Normative references ....................................................................................................................................7 3Terms, definitions, symbols and units ........................................................................................................8 3.1Terms and definitions....................................................................................................................................8 3.2Symbols and units.........................................................................................................................................8 4Basic design criteria....................................................................................................................................10 4.1General..........................................................................................................................................................10 4.2Loadings.......................................................................................................................................................10 4.2.1General..........................................................................................................................................................10 4.2.2Combination of loads ..................................................................................................................................11 4.2.3Loads for dimensioning..............................................................................................................................11 4.2.4Other loads to be taken into account ........................................................................................................12 4.2.5Design conditions........................................................................................................................................13 4.3Thickness......................................................................................................................................................16 4.4Tolerances....................................................................................................................................................18 4.5Joint coefficient............................................................................................................................................18 4.6Dimensioning of piping components subject to pressure......................................................................18 5Design stresses............................................................................................................................................19 5.1General..........................................................................................................................................................19 5.2Time-independent nominal design stress.................................................................................................19 5.2.1Steels other than austenitic steels.............................................................................................................19 5.2.2Austenitic steels...........................................................................................................................................20 5.2.3Nickel and / or chromium alloy steels .......................................................................................................20 5.2.4Steels castings.............................................................................................................................................20 5.2.5Additional requirements for steels with no specific control...................................................................21 5.3Time-dependent nominal design stress....................................................................................................21 5.3.1General..........................................................................................................................................................21 5.3.2Steels.............................................................................................................................................................21 5.3.3Nickel and/or chromium alloy steels .........................................................................................................22 6Design of piping components under internal pressure...........................................................................22 6.1Straight pipes...............................................................................................................................................22 6.2Pipe bends and elbows...............................................................................................................................23 6.2.1General..........................................................................................................................................................23 6.2.2Symbols........................................................................................................................................................23 6.2.3Required wall thicknesses..........................................................................................................................23 6.3Mitre bends...................................................................................................................................................25 6.3.1General..........................................................................................................................................................25 6.3.2Symbols........................................................................................................................................................25 6.3.3Effective radius of mitre bend ....................................................................................................................26 6.3.4Multiple mitre bends....................................................................................................................................27 6.3.5Single mitre bends.......................................................................................................................................27 6.3.6Adjacent straight pipe sections of mitre bends........................................................................................27 6.4Reducers.......................................................................................................................................................27 6.4.1Conditions of applicability..........................................................................................................................27 6.4.2Specific definitions......................................................................................................................................28 6.4.3Specific symbols and abbreviations..........................................................................................................29 6.4.4Conical shells...............................................................................................................................................30 6.4.5Junctions - general......................................................................................................................................30 6.4.6Junction between the large end of a cone and a cylinder without a knuckle .......................................31 6.4.7Junction between the large end of a cone and a cylinder with a knuckle.............................................34 Foreword to amendment A1......................................................................................................................................6 EN 13480-32002 E Issue 1 2002-05 2 Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Tue May 08 103339 GMT0000 2007, Uncontrolled Copy, c BSI w w w . b z f x w . c o m 6.48 Junction between the small end of a cone and a cylinder......................................................................35 6.49 Offset reducers.............................................................................................................................................37 6.4.10Special forged reducers..............................................................................................................................37 6.5Flexible piping components .......................................................................................................................38 6.5.1General..........................................................................................................................................................38 6.5.2Expansion joints..........................................................................................................................................38 6.5.3Corrugated metal hose assemblies...........................................................................................................39 6.6Bolted flange connections..........................................................................................................................40 7Design of ends under internal pressure....................................................................................................41 7.1Dished ends..................................................................................................................................................41 7.1.1Symbols...........................................................................................................