【英文标准名称】:Petroleumandnaturalgasindustries-Specificrequirementsforoffshorestructures-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.地震设计规程和标准
【标准号】:BSENISO19901-2-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-04-07
【实施或试行日期】:2005-04-07
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:天然气工业;平台;天然气;地震;海上平台;试验;石油工业;定义;土工学;方法;基础;稳定性;近海建设工程;工业;土壤普查;石油;设计;地震荷载
【英文主题词】:
【摘要】:ISO19901-2:2004containsrequirementsfordefiningtheseismicdesignproceduresandcriteriaforoffshorestructures;guidanceontherequirementsisincluded.Therequirementsareapplicabletofixedsteelstructuresandfixedconcretestructures.Theeffectsofseismiceventsonfloatingstructuresandpartiallybuoyantstructuresarealsobrieflydiscussed.Thesite-specificassessmentofjack-upsinelevatedconditionisonlycoveredinISO19901-2:2004totheextentthattherequirementsareapplicable.Onlyearthquake-inducedgroundmotionsareaddressedindetail.Othergeologically-inducedhazardssuchasliquefaction,slopeinstability,faults,tsunamis,mudvolcanoesandshockwavesarementionedandbrieflydiscussed.Therequirementsareintendedtoreduceriskstopersons,theenvironment,andassetstothelowestlevelsthatarereasonablypracticable.Thisintentisachievedbyusingseismicdesignprocedureswhicharedependentontheplatform'sexposurelevelandtheexpectedintensityofseismiceventsandatwo-levelseismicdesigncheckinwhichthestructureisdesignedtotheultimatelimitstate(ULS)forstrengthandstiffnessandthencheckedtoabnormalenvironmentaleventsortheaccidentallimitstate(ALS)toensurethatitmeetsreservestrengthandenergydissipationrequirements.Forhighseismicareasand/orhighexposurelevelfixedstructures,asite-specificseismichazardassessmentisrequired;forsuchcases,theproceduresandrequirementsforasite-specificprobabilisticseismichazardanalysis(PSHA)areaddressed.However,athoroughexplanationofPSHAproceduresisnotincluded.Whereasimplifieddesignapproachisallowed,worldwideoffshoremapsareincludedthatshowtheintensityofgroundshakingcorrespondingtoareturnperiodof1000years.Insuchcases,thesemapsmaybeusedwithcorrespondingscalefactorstodetermineappropriateseismicactionsforthedesignofastructure.
【中国标准分类号】:E94
【国际标准分类号】:75_180_20;91_120_25
【页数】:58P;A4
【正文语种】:英语


Product Code:SAE J1787
Title:Measurement of the Total Ash Content of Aviation Piston Engine Oils by a Calculation Method
Issuing Committee:E-38, Aviation Piston Engine Fuels And Lubricants
Scope:This SAE Recommended Practice describes an empirical method for determining the theoretical ash content of aviation piston engine lubricating oils by calculating the equivalent weight of metallic oxides formed at 775 °C based on the metallic elemental concentration.The calculation method of ash determination may be used as an alternate to ASTM D 482 for application to the standards for aviation piston engine lubricating oils.