摘要
Oneofthemainconcernsinusingcommercialsoftwareforfiniteelementanalysesofdam-foundation-reservoirsystemsisthatthesimplifyingassumptionsofthemasslessfoundationareunreliable.Inthisstudy,anappropriatedirectfiniteelementmethodisintroducedforsimulatingthemass,radiationdampingandwavepropagationeffectinfoundationsofdamfoundation-reservoirsystemsusingcommercialsoftwareABAQUS.Thefree-fieldboundaryconditionisusedformodelingthesemi-infinitefoundationandradiationdamping,whichisnotabuilt-inboundaryconditioninmostoftheavailablecommercialsoftwareforfiniteelementanalysisofstructuressuchasANSYSorABAQUSandthusneedstobeimplementeddifferently.Thedifferentmechanismformodelingofthefoundation,earthquakeinputandfar-fieldboundaryconditionisdescribed.Implementationofthefree-fieldboundaryconditioninfiniteelementsoftwareisverifiedbycomparingitwithanalyticalresults.Toinvestigationthefeasibilityoftheproposedmethodindam-foundation-reservoirsystemanalysis,aseriesofanalysesisaccomplishedinavarietyofcasesandtheobtainedresultsarecomparedwiththesubstructuremethodbyusingtheEAGD-84program.Finally,themassedandmasslessfoundationresultsarecomparedanditisconcludedthatthemasslessfoundationapproachleadstotheoverestimationofthedisplacementsandstresseswithinthedambody.
出版日期
2019年01月11日（中国期刊网平台首次上网日期，不代表论文的发表时间）
