BSEN1205622000建筑物内部的自流排水系统卫生管道设计和计算Gravitydrainage

|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||BRITISHSTANDARDBSEN12056-2:2000TheEuropeanStandardEN12056-2:2000hasthestatusofaBritishStandardICS91.140.70;91.140.80NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWGravitydrainagesystemsinsidebuildingsÐPart2:Sanitarypipework,layoutandcalculationLicensedcopy:RMJM,29/08/2005,UncontrolledCopy,©BSI©BSI09-2000ISBN0580364879BSEN12056-2:2000AmendmentsissuedsincepublicationAmd.No.DateCommentsNationalforewordThisBritishStandardistheofficialEnglishlanguageversionofEN12056-2:2000.ItsupersedesBS5572:1994whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedbyTechnicalCommitteeB/505,Wastewaterengineering,toSubcommitteeB/505/21,Roofdrainageandsanitarypipework,whichhastheresponsibilityto:Ðaidenquirerstounderstandthetext;ÐpresenttotheresponsibleEuropeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;ÐmonitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.ThenationalannexesareaninformativeelementofthisBritishStandardandcontaininformationprovidedforeasierimplementationofEN12056-2:2000intheUnitedKingdom,withintheframeworkenvisagedbythescopeoftheEuropeanStandard.UsersareremindedthatonlythenormativeelementsoftheadoptedEuropeanStandardsetouttheprovisionstowhichitisnecessarytoconforminordertoformpartofatradedescriptionwhencitingthisBritishStandardbynumberorwhencompliancewithitisclaimed.Alistoforganizationsrepresentedonthissubcommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSIStandardsCatalogueunderthesectionentitledªInternationalStandardsCorrespondenceIndexº,orbyusingtheªFindºfacilityoftheBSIStandardsElectronicCatalogue.ABritishStandarddoesnotpurporttoincludeallthenecessaryprovisionsofacontract.UsersofBritishStandardsareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to85andabackcover.TheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.Licensedcopy:RMJM,29/08/2005,UncontrolledCopy,©BSIéseauxd'évacuationgravitaireàl'intérieurdesbâtiments-Partie2:Systèmespourleseauxusées,conceptionetcalculsSchwerkraftentwässerungsanlageninnerhalbvonGebäuden-Teil2:Schmutzwasseranlagen,PlanungundBerechnungThisEuropeanStandardwasapprovedbyCENon27October1999.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGCentralSecretariat:ruedeStassart,36B-1050Brussels©2000CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN12056-2:2000ELicensedcopy:RMJM,29/08/2005,UncontrolledCopy,©BSI©BSI09-2000Foreword51Scope62Normativereferences63Definitions63.1General63.1.1Wastewater63.1.2Domesticwastewater73.1.3Tradeeffluent73.1.4Greywater73.1.5Blackwater73.1.6Rainwater73.1.7Floodlevel73.1.8Drainagesystem73.1.9Combinedsystem73.1.10Separatesystem73.2Pipesandfittings73.2.1Sanitarypipework73.2.2Nominaldiameter(DN)73.2.3Internaldiameter(di)73.2.4Externaldiameter(da)73.2.5Minimuminternaldiameter(dimin)73.2.6Branchdischargepipe73.2.7Squareentry73.2.8Sweptentry73.2.9Connectionbend73.2.10Dischargestack73.2.11Stackoffset83.2.12Drain83.2.13Fillingdegree83.3Ventilatingpipework83.3.1Ventilatingpipe83.3.2Branchventilatingpipe83.3.3Stackvent83.3.4Ventilatingstack83.3.5Airadmittancevalve83.4Appliances83.4.1Domesticsanitaryappliances83.4.2Non-domesticsanitaryappliances83.4.3Floorgully83.4.4Trap83.4.5Depthofwaterseal(H)83.5Calculation93.5.1Dischargeunit(DU)93.5.2Frequencyfactor(K)93.5.3Wastewaterflowrate(Qww)93.5.4Continuousflowrate(Qc)9