基于fcm算法的多层钢框架模糊优化设计

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1、●、一I’-,41-■山东建筑大学硕士学位论文FuzzyoptimaldesignofMulti-storeysteelframebasedonFCMalgorithmLiuQiang(StructuralEngineering)DirectedbyZhangXiaojieABSTRACTAlongwiththecontinuousdevelopmentofourcountry’Seconomyandscientifictechnology,China'ssteelmanufacturingindustryhasmadesignificantprogressinrecentyear

2、sandthesteelproductionhasalsorisingyearafteryear．Moreover,thequalityofsteelandsteelspecificationshavemademuchmoreimprovedthaneVer．Thesteelmaterialhastfilghstrength，lightweight，11i商accuracy,shortconstructionperiodandotherno谥blefeatures．Becauseofthesecharacteristics，structuralsystemsusingsteelas

3、themainload-beatingcomponents，especiallythesteelframesystem，aregettingusedmoreandmorewidelyinthefieldofourcountry’Sconstructionindustry,specificallyincivilmulti—storeyarchitecturestructure．Howtomaketheaccurateandeconomicdesignformulti-storeysteelframestructurerapidlyandreasonablely(ortheoptimi

4、zationdesignofmulti-storeysteelframesturcture)，ithasbeenahottopicissueinthefieldofcivilengineering．STSmoduleinstructuraldesignsoftwarePKPMisaprofessionalsteelstructureintegrationofCADsoftware．Becauseofitspowerfulfeatures，accurateandreliableresultsofcalculationandanalysis，theSTSmodulehasamghmar

5、ketshareinOursteelstructuredesigning．However,theoptimizationmnctioninthissoftwareisnotsatisfactory．Becausethismodulehasonlytheoptimalabilityonplanesteelframe，whichdoesnotmatchtheactualworkingconditionsonmostofstructures，anditoftenrequiresthedesignertomaketherealizationoftheoptimaldesignmanuall

6、y．Inthispaper,theauthorconductdeepresearchonthesteelframestructuralsystemandthestructuraloptimizationdesigntheory．Onthatbasis，wecombinethefloatingstressindexmethod谢thfuzzymathematicsc-meansclusteringalgorithm，andproposethefuzzyoptimumdesignmethodformulti—storeysteelframestructure．Accordingtoth

7、ecomputedrestultsofSATWEonstructuralmodel，takingthemembercross·sectionmomentofinertia猫optimizationdesignvariable，materialvolumeastheobjectivefunction，wewillmakethe山东建筑大学硕士学位论文optimizationonsectionsizesofitslinksSOastoreducethedirectmate