NF-EN-13480-6-A1-2005-ENG.pdf
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1、EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13480-6:2004/A1 December 2005 ICS 23.040.01 English Version Metallic industrial piping - Part 6: Additional requirements for buried piping Tuyauteries industrielles mtalliques - Partie 6 : Exigences complmentaires relatives aux tuyauteries enterre
2、s Metallische industrielle Rohrleitungen - Teil 6: Zustzliche Anforderungen an erdgedeckte Rohrleitungen This amendment A1 modifies the European Standard EN 13480-6:2004; it was approved by CEN on 22 September 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stip
3、ulate the conditions for inclusion of this amendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This amendment exists in
4、 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies o
5、f 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. EUROPEAN COMMITTEE FOR STA
6、NDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13480-6:2004/A1:2005: E EN 13480-6:2004/A1:2005 (
7、E) 2 Contents Page Foreword 3 5 Design and calculation.4 5.2 Design4 Annex A (normative) Calculations for buried piping.5 A.1 General 5 A.2 Materials 5 A.3 Design and calculation.5 A.3.1 Calculation procedure 5 A.3.2 Determination of the loads due to backfill5 A.3.3 Determination of the loads due to
8、 live loads17 A.3.4 Determination of the moments acting upon the piping .21 A.3.5 Global stability of a buried piping system 23 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC28 EN 13480-6:2004/A1:2005 (E) 3 Foreword This Eur
9、opean Standard (EN 13480-6:2004/A1:2005) has been prepared by Technical Committee CEN/TC 267 “Industrial piping and pipelines”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorse
10、ment, at the latest by June 2006, and conflicting national standards shall be withdrawn at the latest by June 2006. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Dire
11、ctive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this European Standard. This European Standard contains the Annex A (normative) to be added in EN 13480-6:2004, and the Annex ZA updated to replace the current Annex ZA in EN 13480-6:2004. Accordi
12、ng to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania
13、, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 13480-6:2004/A1:2005 (E) 4 5 Design and calculation Replace title of 5.2 by: 5.2 Design Replace 5.2.5 by: 5.2.5 Where no detailed analysis is undertaken, the maximum temp
14、erature range (including the installation temperature) shall not exceed 35 C, and restraining features such as buried bends and tees shall have a separation of not less than 5 DN. Where detailed analysis is undertaken, it shall be in accordance with EN 13480-3 supplemented by Annex A (normative). EN
15、 13480-6:2004/A1:2005 (E) 5 Annex A (normative) Calculations for buried piping A.1 General This annex describes the applicable requirements for buried piping, supplementing those of EN 13480-3 and EN 13480-6. Thus, it is proposed to deal with the calculations for buried piping taking account of the
16、following: weight of the soil or backfill above the pipe according to the different types of installation; static and dynamic loads imposed on the ground above the pipe (e.g. traffic loads); flexibility and stability of the piping subjected to combined pressure and temperature change effects. A.2 Ma
17、terials The requirements specified in EN 13480-2 apply without any restriction. However, one shall remind that the corrosion phenomena occurring in the case of buried piping may be significantly different from those to which piping above-ground, in ducts or tunnels are subjected. A.3 Design and calc
18、ulation A.3.1 Calculation procedure a) Determination of the required thicknesses from the equations given in EN 13480-3 when the piping is subjected only to internal pressure; b) determination of the loads due to backfill (A.3.2) and to live loads (A.3.3); c) checking of the thicknesses defined in a
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