DNV-OS-C401”FabricationandTestingofOffshoreStructures”VersionSlide231December2020DNV-OS-C401”FabricationandTestingofOffshoreStructuresThisiswhat’sallaboutVersionSlide331December2020DNV-OS-C401”FabricationandTestingofOffshoreStructuresCoursePurpose.培训目的TogiveabriefoverviewofDNVoffshorestandards.介绍DNV海工标准TogivebasicknowledgeoffabricationstandardOSC-401介绍海工建造标准OSC-401的基础知识VersionSlide431December2020DNV-OS-C401”FabricationandTestingofOffshoreStructuresDNV’sROLEINOFFSHORECLASSIFICATIONDETNORSKEVERITAS(DNV)isanautonomousandindependentfoundationwiththeobjectivesofsafeguardinglife,propertyandtheenvironment,atseaandonshore.DETNORSKEVERITAS(简称DNV)是一家独立的公司。致力于在海上或海岸上保护工作人员的生命,公共财产及设备的安全和对环境进行保护。DNVundertakesclassification,certification,andotherverificationandconsultancyservicesrelatingtoqualityofships,offshoreunitsandinstallations,andonshoreindustriesworldwide,andcarriesoutresearchinrelationtothesefunctions.DNV提供在下列领域内为客户提供分级、验证、认证和咨询服务:造船、海工部件和安装、海岸工程以及在这些相关领域的专业研究。VersionSlide531December2020OffshoreStandards海工标准包括:DNV-OS-C401”FabricationandTestingofOffshoreStructures”A:QualityandSafetyMethodology质量和安全控制方法B:MaterialsTechnology材料技术C:Structures结构D:Systems系统E:SpecialFacilities特殊设备F:PipelinesandRisers安装管道和竖管VersionSlide631December2020DNV-OS-C401”FabricationandTestingofOffshoreStructuresOffshoreStandards.海工标准ProvidetechnicalprovisionsandacceptancecriteriaforgeneralusebytheoffshoreindustryaswellasthetechnicalbasisforDNVoffshoreservices.海工标准为海工建造提供技术条款和可接受的标准VersionSlide731December2020DNV-OS-C401”FabricationandTestingofOffshoreStructuresRecommendedPractices.ProvideproventechnologyandsoundengineeringpracticeaswellasguidanceforthehigherlevelOffshoreServiceSpecificationsandOffshoreStandards.提供技术和录音实例以及提供高水平的海工服务规格和海工标准指南。VersionSlide831December2020DNV-OS-C401”FabricationandTestingofOffshoreStructuresDNVOffshoreCodesareofferedwithinthefollowingareas:-A)Qualification,QualityandSafetyMethodology-资格、品质和安全控制方法-B)MaterialsTechnology-材料技术-C)Structures-结构-D)Systems-系统-E)SpecialFacilities-特殊设备-F)PipelinesandRisers-安装管道和竖管-G)AssetOperation-资产管理-H)MarineOperations-海工运营VersionSlide931December2020DNV-OS-C401”FabricationandTestingofOffshoreStructures”DifferenceShipRulesversusOffshorerules船舶规范与海工规范不同的原因RulesforOffshoreprojectsareinsomeareasquitedifferentfromthetraditionalShipRules,duetolongtimeonlocationwithnoorlimitedpossibilitiesleavethelocation.(20–25yearsservicetime)海工产品必须在海上持续工作20-25年船舶可以进坞进行检验(中间检验、特检)VersionSlide1031December2020DNV-OS-C401”FabricationandTestingofOffshoreStructures”Someimportantaspects:几个重要方面-Structuralintegrityandstrength(Loadsbasedonenvironmentalconditionsonactuallocation)-结构形式和强度(载荷根据工作地点的实际环境)-AccidentalloadstobeincludedinDesignLoads(DAL)-设计载荷还考虑到可能受到的意外载荷-Fatigue(attentiontodetails)疲劳问题-Maintenance保养维修-Corrosionprotection防腐-Inserviceinspection(Accessetc.shouldbeplannedandprovidedduringnewbuildingphase)使用过程中的检验-IncreasedreliabilityofMarinesystems,utilitysystemsandequipment.-提高各种系统和设备、设施的可靠性-Safetysystems(Fire,explosion,abandoninstallationetc.)-防火、防爆、逃生等安全系统-Shelfstaterequirementstoaccommodationandworkingenvironment-当地的居住和工作环境要求VersionSlide1131December2020DNV-OS-C401”FabricationandTestingofOffshoreStructures”DNV-OS-C401”FabricationandTestingofOffshoreStructures”DNV-OS-C401海工结构建造和试验-CH.1INTRODUCTION介绍-CH.2TECHNICALPROVISIONS技术条款-CH.3CERTIFICATIONANDCLASSIFICATION验证与入级VersionSlide1231December2020DNV-OS-C401”FabricationandTestingofOffshoreStructures”CH.1INTRODUCTIONA200Objective201Theobjectivesofthisstandardareto:Provideaninternationallyacceptablestandardtoensurethequalityofallweldingoperationsusedinoffshorefabrication,throughidentifyingappropriateweldingprocedures,welderqualificationsandtestmethods.提供国际认可的标准,通过对焊接程序、焊工资格和测试方法的认证来保障海工焊接质量Serveasatechnicalreferencedocumentincontractualmattersbetweenpurchaserandcontractor.为买方和承包人就合同问题提供技术参考文件Serveasguidelinefordesigner,purchaserandcontractor为设计者、买方和承包商提供指导SpecifyminimumrequirementsforweldingoperationssubjecttoDNVcertificationandclassification.将焊接工作的要求最细化,使其符合DNV的认证和分级要求VersionSlide1331December2020DNV-OS-C401”FabricationandTestingofOffshoreStructures”Chapter2Technicalprovisions第二章:技术条款-Sec.1WeldingProceduresandQualificationofWelders-焊接工艺和焊工取证-Sec.2FabricationandTolerances建造与公差-Sec.3Non-DestructiveTesting无损探伤-Sec.4OtherTests其它试验-Sec.5CorrosionProtectionSystems防腐系统-Sec.6Miscellaneous其它VersionSlide1431December2020DNV-OS-C401”FabricationandTestingofOffshoreStructures”Sec.1WeldingProceduresandQualificationofWelders焊接工艺与焊工取证Weldingprocedures焊接工艺Pre-WeldingProcedureSpecificationtobepreparedandacceptedbypurchaser.焊接预试验工艺必须得到船东认可WPQTtobebasedonacceptedPre-WPS按照焊接预试验工艺进行焊接工艺认可试验WPSmaybebasedonpurchaseracceptedWPQTandinconformancewithanagreedqualificationscheme.焊接工艺建立在焊接工艺认可实验及其质量控制方案WPSshallreflectconditionsandequipmentusedfortheactualproductionwelding.焊接工艺须反映实际工作所使用的设备和相关条件WPSshallreflecttheworkingenvironmentfortheworkshoporsitewheretheproductionweldingwillbeperformed.焊接工艺须反映实际工作场所的工作环境SpecificrequirementstoWPQTforC-MnsteelsarefoundinOS