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1、SCIENCECHINATechnologicalSciences•RESEARCHPAPER•October2011Vol.54No.10:2549–2560doi:10.1007/s11431-011-4548-0doi:10.1007/s11431-011-4548-0Collapsesimulationofasuperhigh-risebuildingsubjectedtoextremelystrongearthquakes*LUXiao,LUXinZheng,ZHANGWanKai&YELiePingDepartmentofCivilEngineering,TsinghuaUni
2、versity,Beijing100084,ChinaReceivedApril4,2011;acceptedJuly8,2011Inrecentyears,superhigh-risebuildings(>500m)aredevelopingveryquicklyandbecomeanimportantfrontierofcivilen-gineering.Thecollapseresistanceofsuperhigh-risebuildingssubjectedtoextremelystrongearthquakeisacriticalproblemthatmustbeintensi
3、velystudied.ThispaperbuildsupanonlinearfiniteelementmodelofthetallestbuildinginChina,Shang-haiTower(632m),andproposesthemodelingmethodandfailurecriteriafordifferentstructuralelements.Thedynamicchar-actersofthisbuildingarethenanalyzed,andthepossiblefailuremodesandcollapseprocessesduetoearthquakesar
4、epre-dicted,aswellasthecorrespondingcollapsemechanism.Thisworkwillbehelpfulincollapsepreventionandtheseismicde-signofsuperhigh-risebuildings.superhigh-risebuilding,collapsesimulation,extremelystrongearthquake,finiteelementmethodCitation:LuX,LuXZ,ZhangWK,etal.Collapsesimulationofasuperhigh-risebuil
5、dingsubjectedtoextremelystrongearthquakes.SciChinaTechSci,2011,doi:10.1007/s11431-011-4548-01Introductionstructionintheworldatthebeginningof2010.ThesebuildingsaremainlylocatedinChina,theArabEmiratesandtheUSA(thereare47inChina,including3inTaipei;Sincethecompletionoftheworld’sfirstsuperhigh-rise28in
6、theArabEmiratesand18intheUSA).Superhigh-risebuilding,Taipei101(whichhasatotalheightexceedingbuildingspromotethedevelopmentofnewstructuralsys-500m)in2004,anewwaveofcompetitionwithrespecttotemsandnovelmega-structuralcomponents.However,itisthedesignandconstructionofsuperhigh-risebuildingshasdifficult
7、tostudythesenewsystemsandcomponentsusingstarted.Forexample,theBurjKhalifa,828mhigh,locatedtraditionalexperimentalresearchmethods.Therefore,theinDubaiandcompletedin2010,iscurrentlythetallestbuildingintheworld.With
