【英文标准名称】:Petroleumandnaturalgasindustries-Specificrequirementsforoffshorestructures-Part2:Seismicdesignproceduresandcriteria
【原文标准名称】:石油和天然气工业.海上建筑物的特殊要求.第2部分:地震设计规程和标准
【标准号】:ISO19901-2-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-11
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC67
【标准类型】:()
【标准水平】:()
【中文主题词】:海上平台;地震荷载;石油工业;混凝土结构;地震;钢结构;土壤普查;天然气;工业;大地构造学;平台;天然气工业;近海建设工程;试验;基础;设计;稳定性;定义;石油;方法
【英文主题词】:Concretestructure;Definitions;Design;Earthquakes;Englishlanguage;Foundations;Geotechnics;Industries;Methods;Naturalgas;Naturalgasindustries;Offshoreconstructionworks;Offshoreplatforms;Oilindustries;Petroleum;Platforms;Seismicloading;Soilsurveys;Stability;Steelconstruction;Testing
【摘要】:ThispartofISO19901containsrequirementsfordefiningtheseismicdesignproceduresandcriteriaforoffshorestructures;guidanceontherequirementsisincludedinAnnexA.Therequirementsareapplicabletofixedsteelstructuresandfixedconcretestructures.Theeffectsofseismiceventsonfloatingstructuresandpartiallybuoyantstructuresarealsobrieflydiscussed.Thesite-specificassessmentofjack-upsinelevatedconditionisonlycoveredinthispartofISO19901totheextentthattherequirementsareapplicable.Onlyearthquake-inducedgroundmotionsareaddressedindetail.Othergeologicallyinducedhazardssuchasliquefaction,slopeinstability,faults,tsunamis,mudvolcanoesandshockwavesarementionedandbrieflydiscussed.Therequirementsareintendedtoreduceriskstopersons,theenvironment,andassetstothelowestlevelsthatarereasonablypracticable.Thisintentisachievedbyusing:a)seismicdesignprocedureswhicharedependentontheplatform'sexposurelevelandtheexpectedintensityofseismicevents;b)atwo-levelseismicdesigncheckinwhichthestructureisdesignedtotheultimatelimitstate(ULS)forstrengthandstiffnessandthencheckedtoabnormalenvironmentaleventsortheaccidentallimitstate(ALS)toensurethatitmeetsreservestrengthandenergydissipationrequirements.Forhighseismicareasand/orhighexposurelevelfixedstructures,asite-specificseismichazardassessmentisrequired;forsuchcases,theproceduresandrequirementsforasite-specificprobabilisticseismichazardanalysis(PSHA)areaddressed.However,athoroughexplanationofPSHAproceduresisnotincluded.Whereasimplifieddesignapproachisallowed,worldwideoffshoremapsareincludedinAnnexBthatshowtheintensityofgroundshakingcorrespondingtoareturnperiodof1000years.Insuchcases,thesemapsmaybeusedwithcorrespondingscalefactorstodetermineappropriateseismicactionsforthedesignofastructure.
【中国标准分类号】:E94
【国际标准分类号】:75_180_10;91_120_25
【页数】:46P;A4
【正文语种】:英语