基于節(jié)點域模型的鋼框架結(jié)構(gòu)十字形節(jié)點有限元分析.pdf

1、重慶大學(xué)碩士學(xué)位論文基于節(jié)點域模型的鋼框架結(jié)構(gòu)十字形節(jié)點有限元分析姓名：唐丹姿申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：陳朝暉20090602英文摘要ABSTRACTThebeamc01umnco姍ectionsiIlsteel行amestmctIJresplayanimportantroleSincea10ngtimeago，peopletlloughtthatt11erigidbe鋤colu撇coIlIlectionhasagood

2、toughlless，、Ⅳhichc鋤be如1lydeVelopedplasticdefo徹ationtoabsorbseismicenergyandmaintainthes仃uctumlstabili鑼intheearthquakeHowever，intheNorthridgeeanhqual(ein1994inmeUnitedStatesandKobeeanhqual(ein1995inJapan，alotofbrittle劬ctl

3、Jresofbeam—col硼【lIljointsofsteel仔ameoccurredThisphenomenon1edtoa1a唱enumberofdomesticandintemationaltestandnumericaIsimulationstudvonthebeamc01umco肌ectionsThefiniteelementsimulationofthesteel仔ameiointcannotonlyproVideabas

4、istomldemlinemephenomenona_boutthedestmctionofthebeam—coIuInnjointsofsteel疵une，butalsoprovidetoolsfortheseismicdesignofbuildingstmcturesItisnecessa巧t0accuratelydeteminethestifmessofcomponentsandjointsforsimulatingtheseis

5、micdamageofthesteel仔ames仇JctureThestifmessofbeamcolu砌jointsunderstaticload、ⅣasstudiedfirstlywitlltheestablishmentoftrilinearpaIlelzonemodelThesimulationofcrosstypebeamcolu舳jointofsteelfhmesmJcture、vasachieVedunderstaticl

6、oadperfomance，whichhaslaidafoundationforthefhnherstudyofseismicbehaviorofbeamcolumncorulectionofsteelframeworkAndthecorrespondingresearchesinthisp印erweresummarizedasfollows①Throu曲theanaIysisofdes仃uctivephenomenaandlawsof

7、mesteel仔amestlllctureunderme僦icload鋤dea吡quake，thepropenieswnforCeconcentrationaIldlowintensit)rofbeam—colu啪jointswerethemainreasonfordamagetovastbeamcolumnjointsofsteel仔ames仃uctureineanhquake②Thestifmess，stren舀handdef0冊a

8、tioncharacteristicsoftheconnectionsofsteel仔amestructurewereinVestigatedAccordingtot11enon1inearrelationshipbe觚eenforceanddef0mation，廿lepanelzoneiscomposedoffourri西drodsand帆obilinearrotationalspringsbytheapplicationofthem

9、odelputforthbyYunandFoutchThen，combinedwithmefiniteelementmethod，afiniteelementmodelofacrosstypebeamc01umnjointofplanesteel丘ame蚰rIlctureisachievedbasedonabovemodelWhichconsiderSthesheardefomationofpanelzoneandclearlen礎(chǔ)Th