基于能量判別的結(jié)構(gòu)地震響應(yīng)的研究.pdf

1、中國(guó)科學(xué)技術(shù)大學(xué)碩士學(xué)位論文基于能量判別的結(jié)構(gòu)地震響應(yīng)的研究姓名：王洪波申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：固體力學(xué)指導(dǎo)教師：王秀喜吳恒安201105ABSTRACTEnergyanalysismethodcanwellreflectthecomprehensiveresponseofstructuralelastoplasticitypropertystructuralplasticcumulativeeffectunderearthquakeg

2、roundmotionpropertiesgroundmotionintensityfrequencyduration.Therefeitincreasinglyobtainsengineeringextensiveattention.Thestructuralseismicresponseisanprocessofenergyinputtransfmationconsumption.Inthiscasetheenergyanalysi

3、smethodneedstoresolvemanykeyissuessuchasthetotalinputenergyofstructuresitsinfluencingfactsenergyexistingfmsinstructuresaswellastheenergycausingstructuraldamageunderearthquakeofwhichtheinfluencingfactsdistributionarealsoi

4、ncluded.Inthepresentstudytheenergyseismicprincipleofsingledegreeoffreedommultidegreeoffreedomsystemsaswellasthestaticpushoveranalysisofelasticinelasticstructuresareresearched.Besidesthefiniteelementmethodcrespondingfinit

5、eelementsoftwarearealsousedtoobtainseismictotalinputenergyplasticdissipatedenergy(inelastichystereticenergy)ultimatefailureenergyofstructures.Thedimensionlessplasticdissipatedindexfailureindexareproposedbasedonenergyanal

6、ysis.Theplasticdissipatedindexisdefinedastheratioofstructuralplasticdissipatedenergytototalinputenergythefailureindexisdefinedastheratioofstructuraltotalinputenergytostructuralultimatefailureenergy.Thestructuralplasticdi

7、ssipatedenergytotalinputenergyarecalculatedbynonlineardynamictimehistyresponseanalysisusingthesoftwareofABAQUSwhilethestructuralultimatefailureenergyiscalculatedwiththestaticmodalpushovermethod.Asanexamplethenumericalana

8、lysisofatypicalstructureunderearthquakeiscarriedout.Thefailureindexplasticdissipatedindexsimulatedseismicdamageofstructurearepresentedcompared.Thedistributionofplasticdissipatedenergyindifferentsteysdifferentstructuralco

9、mponentsisalsoobtainedfromthesecalculationsunderdifferentearthquakeintensities.Theresultsverifythecrectnessreliabilityoftheproposedmethod.Thecrespondingrulesofplasticdissipatedindexsimulatedseismicdamageofhighrisestructu

10、resisachievedbythecomparisonofplasticdissipatedindexsimulatedseismicdamageoflotsofhighrisestructures.Sowecanusetherulestoestimatetheseismicdamageofhighrisestructures.Seismicsimulationofatypicalhighriseframetubestructurei