不同地震记录选择方法下某超高层巨型框架结构能量反应分析

44220141BuildingStructureVol．44No．2Jan．2014*1215101702230009。。。。10。TU973.1+9A1002-848X201402-0019-06Analysisonseismicenergyresponseofsupertallmega-framestructureunderdifferentgroundmotionrecordselectionmethodsChangLei1YeXianguo21ＲBSArchitectureEngineerDesignAssociateGuangzhou510170China2SchoolofCivilandHydrawlicEngineeringHefeiUniversityofTechnologyHefei230009ChinaAbstractElasto-plastictimehistoryanalysisonasupertallmega-framestructureundertherareearthquakewascarriedoutusingthreegroundmotionrecordselectionmethodsandeffectsofthreemethodsonthestructure'senergyresponsewerecomparedandevaluated．Throughtheseismicenergyresponseanalysisresultsinfluencesofrecordselectionmethodsbasedonfittingdesignaccelerationresponsespectrumandfittingenergyresponsespectrumwereevaluated．Spectrum-matchedmethodcanmaintainactualearthquakerecord'scharacteristicsaswellasreflectingthedesignspectrumperfectly．Fittingenergyresponsespectrummethodandspectrum-matchedmethodwereproposedtoselectrealrareearthquakerecordsandproduceartificialearthquakerecordrespectively．Basedoncalculationsdesignaccelerationspectruminlongperiodwasamplifiedartificiallysoexaggeratedstructuralenergyresponsewillberesultedwhileusingfittingdesignaccelerationresponsespectrummethodandtheenergyresponseisaround10timesofthatbyfittingenergyresponsespectrummethod．Itshouldbenoticedinstructuraldesignandseismicanalysisunderrareearthquakeofsupertallbuilding．Keywordsgroundmotionrecordsupertallbuildingmega-framestructureseismicenergy*90715016。[e-mail]。0。1234。。。1。23201445。。。LilhanandTseng6Kaul7。。170.1gⅡ39m×36m55201m3.6m4.2m11223344557.8m×7.2m、4.2mCANNY8。19。1、。X220gal。ＲayleighC=2hk/ω1K+2hmω1MKMω11hkhm0.010.04。2PEEＲNGADatabase。10±10%。。13s。0.1s0.35s3s5s。75%2。。。02442．2。11。312。。35%。0.85s5s。73。。4LilhanandTseng6Kaul7。。ξk、ωiΔＲikΔＲAξkωiΔat。DuhamelΔＲik=ΔＲAωiξk=∫ti0Δaτhikti－τdτi=12…Mk=12…N1hiktξk、ωihikt=ωDie－ξkωit·sinωDitωDi=ωi1－ξ2槡kωDitiτ。ΔＲAωiξkΔat。ΔatM×NfjltΔat=∑Mj=1∑Nl=1fjlbjl2ΔatM×Nbjl12ΔＲik=∑Mj=1∑Nl=1cjlikbjl3cjlik=∫ti0fjlτhikti－τdτ。3ΔＲ=CBB=C－1ΔＲ2ΔatΔat。。。。。。122014、、。4。5。455。1234、、。、。。5.1、、6～9。。8。67822442．9、。。。5.2。10、。。10。10《》GB50011—2010。7117。5.312。。、101112322014。1。。2。3“3、7”。、。。。61。2。。3“”。。1HOUSNEＲGW．LimitdesignofstructurestoresistearthquakesC//EEＲI1stWorldConferenceEarthquakeEngineering．BerkeleyCA19561-13．2YEXGCHANGLLIKNetal．Energyresponseanalysisofbase-isolatedＲCframestructureC//The8thPacificConferenceonEarthquakeEngineering．Singapore2007．3．J．201043922-31．4．J．200118A03231-235．5．D．2006．6LILHANANDKTSENGWS．Generationofsynthetictimehistoriescompatiblewithmultiple-dampingdesignresponsespectraC//Proceedingsofthe9thStructuralMechanicsinＲeactorTechnology．Lausanne1987．7KAULMK．Spectrum-consistenttime-historygenerationJ．JournaloftheEngineeringMechanicsDivision19781044781-788．8LIKN．CANNYtechnicalmanualM．CANNYConsultantPte．Ltd．2004．9．J．201043S161-65．10GB50011—2010S．2010．11．SAUSAGEJ．201242S212-17．12．J．201133191-102．“”20131213“”。。“”“”。42