結構地震響應的主動、半主動、被動控制耗能機理對比.pdf

1、蘭州理工大學碩士學位論文結構地震響應的主動、半主動、被動控制耗能機理對比姓名：劉凱雁申請學位級別：碩士專業(yè)：結構工程指導教師：杜永峰李慧20070529結構地震響府的土動、半t動，被動控制耗能機琿對比AbstractAtpresent，theresearchtostructuralvibrationcontrolisakeyissueinthefieldofearthquakeresistanceDifferentcontrolmeth

2、odisdifferentinworkprincipleandindecoupleefficiencyBesidesevaluatingcontrolefficiencybyusingthesingleindexsuchasdisplacement，accelerationandshearingforce，itissignificantthattorevealexactlytheessentialrelationshipbetweens

3、eismicanddamageconditionsofbuildingswhichareapplieddifferentcontrolstrategiesandtoeognizethedecouplemechanismsandcontrolresultstostructureearthquakeresponses(especiallythemundermajorearthquake)ofdifferentcontrolmethodsfr

4、omtheessentialaspectTransfertransformationandabsorption(dissipatiomofenergydescribethesubstantivecharacteristicsofstructureearthquakeresponsesMitigationorinhibitingofbuildingdamageinconrseofamajorseismicdependuponmostlyt

5、hemagnitudeofinputenergyofearthquakeandthechangeofbuildingenergydissipationcapacityafteremployonekindofcontrolmeasureEnergymethodisjustaexcellentmethodofresearchingbuildingdamagelevelbasedontheequilibriumrelationshipbetw

6、eeninputanddissipationofenergyThismethodCalldescribepreferablytheinfluenceofthethreefactorsofgroundmotiontostructureearthquakeresponses，especiallyitcalltracethewholeprocessofbuildingnon—linearresponsesEnergymethodispaida

7、widelyattentionintheworldInthispaperenergymethodischosenastheanalyticalmethodtoapplyinevaluationofstructurevibrationcontrol，fromtheviewofenergy，investigateandcomparethedeeoupleefficientofactive，semi—activeandpassivecontr

8、olsystemsThefirststepistochoosethestudyobjectsandtheirdynamicalmodelswhichincludemainlydivisionrayleighdampingmodelandBoue—WenhysteresismodelThenextistoestablishtheenergyequationsaccordingtothemotionfunctionscorrespondin

9、geverycontrolbuilding，definethemeaningandderivetheexpressionofeveryitemintheenergyequations，makeclearthecontrolmechanismofdifferentcontrolmethodAfterfinishingthetheorystudyattheendofthepaperemployarealbuildingasanumerica

10、lexampletoprovetherelationbetweenearthquakeinputenergyanddisplacementresponseinbaseisolationandsolvetheenergyresponsescorrespondingtodifferentcontrolsystemsthroughMatlabsimulationTheresultshowsthateverycontrolmethodcanch