平面鋁合金框架結(jié)構(gòu)的二階效應(yīng)分析.pdf

1、同濟(jì)大學(xué)土木工程學(xué)院碩士學(xué)位論文平面鋁合金框架結(jié)構(gòu)的二階效應(yīng)分析姓名：倪月申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：張其林20060301AbstractAbstractThestructurenonlinearityisdividedintothegeometrynonlinearityandthematerialnonlinearityThestructuregeometrynonlinearityisdepictedthestru

2、cturedistortioncausesthepositionchangeofstructureoriginalloadtoproduceresultingintheattachmentactioneffect，whichoftencallsSecondOrderEffectItmainlydividesintotheP一6effectandtheP—Aeffectregardingtheframeconstructiongeomet

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4、nningsandendsThelongtimeover，theruleresearchofSecondOrderEffectofframeconstructionhasmainlyinvolvedtwoaspects：oneisattemptingtoseekonemethodtopreciselyanalysizetherealstresssituationofframeconstruction；theotheriSseekingo

5、nekindofmorepracticalmethodtosuittheengineeringdesignRegardingthealuminumalloyframeconstruction，wemustconsideritssecondordereffectbeforecarryingonthepreciseanalysisandthedesign，whileprecisesecondorderanalysisusuallyneeds

6、iterativeprocess，thereforeitiscomplexandtimeconsumingWhenitdoesnotneedpreciselytosolve，usingthesimplifiedprincipletOconsiderSecondOrderEffectaccordingtotheapproximatewayismoreconvenientInordertosummarizetheSecondOrderAna

7、lysismethodofthealuminumalloyflameconstructionaswellassimplifythetheoryofSecondOrderAnalysis，SOthatprovidingthemorereliablereferenceforthealuminumalloyframeconstruction’Ssimplifiedformula，thisarticlemainlyelaboratedeachs

8、econdorderanalysismethodthatmayapplytotherectangularrigidframeaswellasthesimplificationtheoryoftheSecondOrderAnalysismethod，what’Smore，inordertOconfirmtheprecisionbymeansofthesimplifiedSecondOrderAnalysismethodregardingt