巨—子型控制結(jié)構(gòu)體系脈動(dòng)風(fēng)振反應(yīng)分析.pdf

1、西北工業(yè)大學(xué)碩士學(xué)位論文巨—子型控制結(jié)構(gòu)體系脈動(dòng)風(fēng)振反應(yīng)分析姓名：畢金鳳申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：工程力學(xué)指導(dǎo)教師：張洵安20060301兩北工業(yè)人學(xué)壩L學(xué)位淪文英文摘受AbstractExpeditingofcitificationspursswiftdevelopingofsupertallbuildings，whichisresponsetoissuesduringcitydeveloping，suchaspopulation，la

2、nd—valueandlackoflandNewstructuralformsarerequiredtosarisfystructuralfunctionsandtocentrelvibrationasheightofbuildingsincreasedMegasubcontrolledstructuralsystemcombinedconventionalmegaframestructureandTMDtheorythusitcanr

3、educestructuralvibrationeffectivelyandmeetfunctiondemandssimultaneouslyAnewmega—subcontrolledstructuralsystemiSpresentsinthispaperonthebaseofformerresearchtosolvethelongspanproblemofthemegabeamwhichiSachievedthrou曲settin

4、gadditionalcolumnsThispaperdescribesthevibrationequationofthisstructuralsystemandderivesthehorizontalvibrationdisplacementandaccelerationresponsespectrumandthemeansquareresponseonthebaseofthecomplexmodalanalyticaltheoryC

5、onsultingthestructuralformoftheNECBuildingandTCBuildinginJapanese，numericalexampleswiththreeorfourmegafloorsaredescribedImpactsofadditionalcolumnsstifineSSandadditionaldamperswhicharetheimportantfactorstothestructuralsys

6、temunderpulsatingwind，areanalyzedthroughchangesofstifinessratioanddamperratioImpactsofadditionalcolumnsstiffnessonthemegastructureandthesubstructurewithoutdanlperarediscussed，andparticlesofthestructuralsystemthathavestro

7、ngerresponsesareasexamplestOinvestigateimpactsofdampsonthemegasubcontrolledstructuresystem，Thecasethatthemegastructureundergoespulsatingwindsolelyisconsideredaswellasthecasethatthemegastructureandthesubstructureundergopu

8、lsatingwindsimultaneouslyAnalyticalresultsshowthatthemegasubcontrolledstructuralsystemwithadditionalcolumnscanreducethestructuralresponseseffectivelyandtheeffectwillbebetterifthemegastructureandthesubstructureundergopuls

9、atingwindsimultaneouslyTheadditionalcolumnsCandecreasethepeakresponsesofthesubstructureandtheadvisablevalueofstiffnessratiois03Responsesofthemegastructureandthesubstructurearereducedwhenadditienaldampersareinstalledandth

10、eadvisablevalueofthedamperratioiS2to4Onthebaseofnumericalanalysisandsimulationtheorytheprimarydesignprojectofthemega—subcontrolledstructuralsystemmodaliSdescribedinthispaDorThemegasubcontrolledstructuralsystemwithadditio

11、nalcolumnsiSgoodforvibrationcontrolandthelongspanproblemofthemegabeamissolvedsimultaneouslyIt’SeasiertealizeinengineerKeywords：mega—subcontrolledstructuralsystemcomplexmodalanalyticaltheorydamperratiovibrationbypulsating