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【英文标准名称】:StandardClassificationforBuildingElementsandRelatedSitework-UNIFORMATII
【原文标准名称】:建筑构件及有关现场工作标准分类.统一格式Ⅱ
【标准号】:ASTME1557-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E06.81
【标准类型】:(Classification)
【标准水平】:()
【中文主题词】:
【英文主题词】:buildingassemblies;buildingeconomics;buildingelementalformat;buildingelements;buildingfunctionalelements;buildingsystemsclassification;costestimation;costplanning;designeconomics;economicanalysis;economicevaluation;elementalbuild
【摘要】:Thisclassificationdefinesbuildingelementsasmajorcomponentscommontomostbuildings.Theclassificationisthecommonthreadlinkingactivitiesandparticipantsinabuildingprojectfrominitialplanningthroughoperations,maintenance,anddisposal.TheusersofUNIFORMATIIincludeowners,developers,facilitiesprogrammers,costplanners,estimators,schedulers,architectsandengineers,specificationwriters,operatingandmaintenancestaff,manufacturers,andeducators.Usethisclassificationwhendoingthefollowing:Structuringcostsonanelementalbasisforeconomicevaluations(PracticesE917,E964,E1057,E1074,E1121,andE1804)earlyinthedesignprocess.UsingUNIFORMATIIhelpsreducethecostofearlyanalysisandcontributestosubstantialdesignandoperationalsavingsbeforedecisionshavebeenmadethatlimitoptionsforpotentialsavings.Estimatingandcontrollingcostsduringplanning,design,andconstruction.UseUNIFORMATIItopreparebudgetsandtoestablishelementalcostplansbeforedesignbegins.Theprojectmanagerusesthesetocontrolprojectcost,time,andquality,andtosetdesign-to-costtargets.SeeAppendixX2foranexampleofaUNIFORMATIIbuildingelementaldesigncostestimate.Conductingvalueengineeringworkshops.UseUNIFORMATIIasachecklisttoensurethatalternativesforallelementsofsignificantcostinthebuildingprojectareanalyzedinthecreativityphaseofthejobplan.Also,usetheelementalcostdatatoexpeditethedevelopmentofcostmodelsforbuildingsystems.Developinginitialprojectmasterschedules.Sinceprojectsarebuiltelementbyelement,UNIFORMATIIisanappropriatebasisforpreparingconstructionschedulesatthestartofthedesignprocess.Performingriskanalyses.Simulationisonetechnique(PracticeE1369)fordevelopingprobabilitydistributionsofbuildingcostswhenevaluatingtheeconomicriskinundertakingabuildingproject.UseindividualelementsandgroupelementsinUNIFORMATIIfordevelopingprobabilitydistributionsofelementalcosts.Fromthesedistributions,buildupprobabilitydistributionsoftotalprojectcoststoestablishacceptableprojectcontingenciesortoserveasinputstoaneconomicanalysis.(SeePracticeE1185forguidanceastowhateconomicmethodtouse.)Structuringcostmanualsandrecordingconstruction,operating,andmaintenancecostsinadatabase.Havingamanualordatabaseinanelementalformathelpsyouperformeconomicanalysisearlyinthedesignstageandatreasonablecost.Structuringpreliminaryprojectdescriptionsduringtheconceptualdesignphase.Itfacilitatesthedescriptionofthescopeoftheprojectfortheclientinaclear,concise,andlogicalsequence;itprovidesthebasisforthepreparationofmoredetailedelementalestimatesduringtheearlyconceptandpreliminarydesignphases,anditenhancescommunicationsamongdesignersandotherbuildingprofessionalsbyprovidingaclearstatementofthedesigner''sintent.SeeAppendixX3forasamplepreliminaryprojectdescription(PPD)basedonUNIFORMATII.Codingandreferencingstandarddetailsincomputer-aideddesignsystems.Thisallowsanarchitect,forexample,toreferenceanexteriorwallassemblyaccordingtoUNIFORMATIIelementdesignationsandbuildupadatabaseofstandarddetailsstructuredaccordingtotheclassification.UNIFORMATII,asdescribedinthisclassification,includessiteworknormallyrelatedtobuildingsbutdoesnotapplytomajorcivilworks.Itisalsounsuitableforprocessapplicationsorforpreparingtradeestimates.