高层建筑砼结构顶部隔震体系的减震分析

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1、太原理i【：人学硕士研究生学位论文EARTHOUAKERESPONSEREDUOTIONANALYSISOFHIGH—RISEREINFOROEDOONORETESTRUCTURESWJTHlSOLATEDSYSTEMSONTHETOPABSTRACTTheresearchesinthepaperbelongtonaturalsciencefundofShanxiprovince(20051053)，whichconcernhigh—risereinforcedconcretestructureswithupperfloorvibrationis

2、olationsystemsinthepassiveseismicisolationandreductionfields．MainresearchutilizesthetoppartofconstructionasthequalityoneofTMD，alsothebetweenafloorandthemassaboveisolatioflexiblelaminatedbearingsanddampersareinsertedcolumnsoftoppartofconstructionthatsupportit．Andnlayerandisola

3、tionlayerjointlymakeupTMDshockabsorptionsystemtogetherwhichistocontrolseismicresponseInthispapegthestatusofstudiesandapplicationsofisolationbearingandhigh-risebuildingisolationtechniqueisanalyzed．Itstatethedesignthoughtofhigh-risebuildinginterlayerseismicisolationstructure，Th

4、atistosay,earthquakeisolationdevicesaresettledonthetoppartofthefoundation，andthetallbuildingwasseparatedintotwopartsbyisolationfloor．Dynamicinteractionofupperandbottomstructuresandisolationdeviceswereusedtoreduceseismicresponse．Itsprinciplewasstatedthroughanalysisandcomputing

5、oftwofreedomdegreesystemthatisaconcentratedmassmodel．inaddition，themulti—degreeoffreedomsystemmodelbasedonlumpedmassmodewasanalyzed，whichtesttheconclusionoftwo-degreeahead．Inconclusion，themaininfluencefactorsofhigh—risebuildingstructurewithisolatedfloorwerefoundout．Thosewereg

6、ravitationalloadratioandperiodratioofupperandbottomstructure，anddampingratioofisolationfloonTheanalysisindicatedthefeasiblegravitationalloadratioisRg=O．01-0．35andthefeasibleperiodratioisR『=0．9-1．1．Whengravitationalloadratioequalstosmallervalue，periodratioIII——奎垦型：!：奎堂塑主丛壅尘堂堡鲨

7、苎adoptssmallervalue，tOO．Based011theabove—mentionedrelevantconclusions，thepaperhavecarriedonqualitativeanalysistosomehigh-risereinforcedconcretestructureswimtoDstoryisolatedsystems，andcontrastoftwosituations：oneisthecomputationalresultsofhigh‘risebuildingwithisolationfloorsyst

8、em1werecomparedwiththeresultsofordinaryflame-shearstructureI，theothe