SeismoStruct 2018.3.1 一款適用於結構評估、結構改造等行業的結構評估改造軟件 SeismoStruct是一款適用於結構評估、結構改造等行業的結構評估改造軟件,利用非線性靜態和動態分析方法來分析出地震評。 SeismoStructisanaward-winningprogramdevelopedfortheaccurateanalyticalassessmentofdifferentclassesofstructures,suchasbuildings,bridgesorindustrialplants,subjectedtoearthquakestrongmotion.Itfeaturesanumberofverifiednonlinearstaticanddynamicanalysismethods(pushover,incrementaldynamicanalysis,etc.)soastomeettheanalyticalrequirementsposedbythemodernperformance-basedseismicassessmentanddesignphilosophy. SomeofthemoreimportantfeaturesofSeismoStructaresummarisedinwhatfollows: Completelyvisualinterface.Noinputorconfigurationfiles,programmingscriptsoranyothertime-consumingandcomplextexteditingrequirements. FullintegrationwiththeWindowsenvironment.Inputdatacreatedinspreadsheetprograms,suchasMicrosoftExcel,maybepastedtotheSeismoStructinputtables,foreasierpre-processing.Conversely,allinformationvisiblewithinthegraphicalinterfaceofSeismoStructcanbecopiedtoexternalsoftwareapplications(e.g.towordprocessingprograms,suchasMicrosoftWord),includinginputandoutputdata,highqualitygraphs,themodels'deformedandundeformedshapesandmuchmore. WiththeWizardfacilitytheusercancreateregular/irregular2Dor3Dmodelsandrunalltypesofanalysesonthefly.Thewholeprocesstakesnomorethanafewseconds. WiththeBuildingModellertheusercancreaterealregularorirregular3Dreinforcedconcretemodelsofupto20storeyswithinminutes. Eightdifferenttypesofanalysis:dynamicandstatictime-history,conventionalandadaptivepushover,incrementaldynamicanalysis,eigenvalue,non-variablestaticloading,andresponsespectrumanalysis. Theappliedloadingmayconsistofconstantorvariableforces,displacementsandaccelerationsatthenodes,aswellasdistributedelementforces.Thevariableloadscanvaryproportionallyorindependentlyinthepseudo-timeortimedomain. Theprogramaccountsforbothmaterialinelasticityandgeometricnonlinearity. Alargevarietyofreinforcedconcrete,steelandcompositesectionsareavailable. ThespreadofinelasticityalongthememberlengthandacrossthesectiondepthisexplicitlymodelledinSeismoStructallowingforaccurateestimationofdamageaccumulation. Numericalstabilityandaccuracyatveryhighstrainlevelsenablingprecisedeterminationofthecollapseloadofstructures. Theinnovativeadaptivepushoverprocedure.Inthispushovermethodthelateralloaddistributionisnotkeptconstantbutiscontinuouslyupdated,accordingtothemodalshapesandparticipationfactorsderivedbyeigenvalueanalysiscarriedoutatthecurrentstep.Inthisway,thestiffnessstateandtheperiodelongationofthestructureateachstep,aswellashighermodeeffects,areaccountedfor.Inparticularthedisplacement-basedvariantofthemethod,duetoitsabilitytoupdatethelateraldisplacementpatternsaccordingtotheconstantlychangingmodalpropertiesofthesystem,overcomestheinherentweaknessesoffixed-patterndisplacementpushover,providingsuperiorresponseestimates. SeismoStructpossessestheabilitytosmartlysubdividetheloadingincrement,wheneverconvergenceproblemsarise.Thelevelofsubdivisiondependsontheconvergencedifficultiesencountered.Whenconvergencedifficultiesareovercome,theprogramautomaticallyincreasestheloadingincrementbacktoitsoriginalvalue. SeismoStruct'sprocessorfeaturesreal-timeplottingofdisplacementcurvesanddeformedshapeofthestructure,togetherwiththeabilityofpausingandre-startingtheanalysis. Capacitychecksinchordrotationandshearcanbeperformed,accordingtoEurocode8,NTC-08(ItalianNationalSeismicCode)andKANEPE(GreekSeismicInterventionsCode)andforallthelimitstatesofthespecifiedcodes. Performancecriteriacanalsobeset,allowingtheusertoidentifytheinstantsatwhichdifferentperformancelimitstates(e.g.non-structuraldamage,structuraldamage,collapse)arereached.Thesequenceofcracking,yielding,failureofmembersthroughoutthestructurecanalsobe,inthismannerreadilyobtained. Advancedpost-processingfacilities,includingtheabilitytocustom-formatallderivedplotsanddeformedshapes,thusincreasingproductivityofusers. AVImoviefilescanbecreatedtobetterillustratethesequenceofstructura