鋼結(jié)構(gòu)空間相貫節(jié)點(diǎn)非線(xiàn)性有限元分析.pdf

1、西南交通大學(xué)碩士學(xué)位論文鋼結(jié)構(gòu)空間相貫節(jié)點(diǎn)非線(xiàn)性有限元分析姓名：趙偉申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：羅永坤20061201囂毫交透大學(xué)碩囊磷突生學(xué)位論文第玨癸AbstractAnewmethodofcreatingthesteeltubularspacejointmodelhasbeendiscussedinthiSpaperAndthenonlinearfiniteelementmethodaretakeno玨thestee

2、ltubularspacejointBasedontheresearchofpredecessors，thefiniteelementmethodaretakenonthesteeltubularspacejointusedinastadiumwiththeassistanceofSAP2000andABAOUSfiniteelementprocedureThepaperexpoundsthekeypositionoftheTubula

3、r—jointintheapplicationanddevelopmentofthespacestructure。PointsoutthetheoreticalandthepracticalvalueofstudyandanalyzetubularjointindepthConsideringthecomplexstateunderpress，itisdifficulttogetthebearing—capacitybytheoryan

4、alysisFirst。anintegralanalysisofsteeltruSShasbeentakentogettheaxialforcewithtleassistanceofS矗P2000thenhasgottentheaxialforce纛黻餐USisusedtoanalysisthetypicaljointsandtocomparewiththeintegralanalysisresult，SOconvalidatether

5、ationalityofthejointsmodelAmethodonintegratingintegralanalysisandnodeanalysistocreatethesteeltubularspacejointmodelhasbeendiscussed。Beginningwithallassumptiononidealelastic——plasticmaterial，thematerialandgeometrybeingcon

6、siderednonlinearOnthebasisafournodeshellelementinABAQUSisemployedtosimulateThemainmeshunittypeisquadrilateral，buttheplacewhereistransitionalareasisallowedtoappearthetrianglemeshunit。Themethodofapplyingloadisstepbystepacc

7、ordingtotheproportionoftheintegralanalyzedloadandaxialforceThejointintheanalysis，NumericalstudiesshowthejointfailuremechanismsandplasticityspreadwithloadingHaspromulgatedthepitchpointdestructionmechanismanduncoversthefor