摘要
Thedynamicequationsofmotionofasymmetricoffshoreplatformsunderthreedifferentenvironmentalconditions:seismicaction,waveactionandtheircombinationareestablishedinthispaper.Inestablishingthesemotionequations,threetypicaleccentricitytypesincludingmasseccentricity,rigidityeccentricityandtheircombinationwereconsidered,asareeccentricitiesthatoccurun-idirectionallyandbi-directionally.Theeffectsoftheeccentricitytype,thedynamiccharacteristicsandtheenvironmentalconditionsonthetorsionalcouplingresponseofplatformsareinvestigatedandcompared.Anefforthasalsobeenmadetoanalyzetheinffluenceofaccidentaleccentricityonasymmetricplatformswithdifferenteccentricityintwohorizontallyorthogonaldirections.Theresultsaregivenintermsofnon-dimensionalparameters,accountingfortheuncoupledtorsionaltolateralfrequencyratio.Numericalresultsrevealthattheeccentricitytypehasagreatinffluenceonthetorsionallycoupledresponseunderdifferentenvironmentalconditions.Therefore,itisnecessarytoconsiderthecombinationofearthquakeandwaveactionintheseismicresponseanalysisofsomeoffshoreplatforms.
出版日期
2010年02月12日（中国期刊网平台首次上网日期，不代表论文的发表时间）
