剛架結(jié)構(gòu)彈塑性波傳播的數(shù)值分析研究.pdf

1、哈爾濱工程大學(xué)碩士學(xué)位論文剛架結(jié)構(gòu)彈塑性波傳播的數(shù)值分析研究姓名：趙元博申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：固體力學(xué)指導(dǎo)教師：齊輝；田家勇20110315哈爾濱工程大學(xué)碩士學(xué)位論文■■—■■■●■●—■●置■暑●■—■皇|—■—●●——置i宣葺暑葺I宣|●置宣暑置宣暑暑暑暑暑昌■———■——■■——●■■———|——i■暑置宣———皇——■■■一ABSTRACTThecharacteristicofnearfieldgroundmotionisdi

2、fferencefromthatoffarfieldgroundmotionSOthatthefailurepatternsofbuildingsimpactedbythenearfieldstrongearthquakemotionandthefarfieldstrongearthquakemotionaredifferentBecausesomenewfaileurepatternscouldn’tbeexplmnedwellbyt

3、hetraditionalmethods，themethodofwavepropagationisattemptedtoslovetheproblemFirstlytheelasticwavepropagationinframedstructuresbyfmitcdifferencemethodisinvestigatedTheconsiderationoflongitudinal，torsionalandflexuralwavesin

4、rigidframesyieldsthefinitedifferenceequationforwavepropagationinframedstructures，TheexplamestudyshowsthatthefinitedifferencemethodcarlsimulatetheelasticwavepropagationinframedstructureseffectivelySecondlyadoubledeckdiffe

5、renceequationfortheplasticwavepropagatinginframedStruCtureSisformulatedbythecombinationofnormalfinitedifferencemethodinthespacialdomainandWil∞Ir一0methodinthetimedomainItiSassumedthattheconstitutiverelationsofmaterialarei

6、ndependentinthreedirectionsBilinearrestoringforcecharacteristicsandMasingrulearealsousedintheresearchThenumericalexamplesstudyshowsthatthenewfinitedifferencemethodCansimulatetheplasticwavepropagationinframedstructureswel

7、lItisshownthatthefinitedifferencemethodcouldbefurtherappliedinthenumericalsimulationtotheelasticplasticwavepropagationinhingedpointstructuresormixedpointstructuresandtotheinvestigationofthedamagemechanismofstructuresimpa