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1、StudyonInteractiveComputerProgramforSeismicAppraisalandSeismicStrengtheningofR.C.FrameStructuresAbstract: Inmanycases,seismicappraisalofexistingstructuresiscarriedoutbythetwo-stepmethodandseismicstrengtheningofR.C.framestructuresissolvedjustbasedonroughcalculationorexperienceofdesigners,whichmayl
2、eadtoeitherlackofsafetyortooconservativeindesign.Accordingtosomerelatedcriteriaandexperts’experience,acomputerprogramisdevelopedspeciallyforseismicappraisalandseismicstrengtheningofR.C.frames(notmorethan10storeys)inthispaper.Becausetheprogramhasafriendlyinteractiveinterfaceanda“navigating”functio
3、n,userswithalittleknowledgeofcivilengineeringcanusetheprogramtofinishthejobofseismicappraisalandseismicstrengtheningofR.C.frames.Afterseismicappraisaliscompleted,threestrengtheningmethodscanbeselected,whichareincreasingthecomponents’sectionwithreinforcedconcrete,encasingthemwithanglesteelandadher
4、ingsteelplateontheirsurfaces,respectively.Thedesignworkbasedontheprogramwillbecompletedmoreaccurately,reasonablyandquickly.Atthesametime,agreatdealofmanpower,materialresourcesandfinancialresourcescanbesaved.Keywords: adheringsteelplate,bondinganglessteel,jacketingwithR.C.,seismicappraisal,seismic
5、strengtheningWiththedevelopmentofnationaleconomyandtheextensionofearthquakeknowledgeinChina,alargenumberofexistingbuildingsbuiltin1950sor1960sarepoorofseismicperformanceanddon’tcomplywithcurrentnationalstandards.Theyneedrehabilitation(pre-earthquakerehabilitationorpost-earthquakerehabilitation)to
6、meettherequirementsofthestandardsafterseismicappraisal.InChina,R.C.framestructuresplayanimportantroleinindustrialandcivilbuildings.However,investigationresultsofpostintenseearthquakesindicatethatsomeframesareseriouslydamagedandsomeevencollapsed.Buildingcollapseandfirewerethemaincausesof第页death.At
7、thesametime,afewcasesofextensivelyrehabilitatedbuildings,whichexperiencedstronggroundmotionafterrehabilitation,werereportedthattheydidnotsufferseveredamagewhilesomeothersdidinthesamearea.Thus,theimportanceandeffectiven
