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ID:47166082
大小:225.00 KB
页数:11页
时间:2019-08-15
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1、毕业设计(论文)外文参考资料及译文译文题目: 学生姓名:学 号:专 业:所在学院:指导教师:职 称:年月日FundamentalsofCompositeActionandShearConnectionTheevolutionofsatisfactorydesignmethodsforcompositebeamshasbeenaslowprocess,requiringmuchtheoreticalandexperimentalworkinorder'toprovideeconomi
2、cand,atthesametime,safedesigncriteria.ThepurposeofthisChapteristodescribeinsomedetailthemoreimportantfundamentalswhichhavetobetakenintoaccountinthedesignofcompositestructures.Historicallythefirstanalysisofacompositesectionwasbasedontheconventionalass
3、umptionsoftheelastictheorywhichlimitthestressesinthecomponent'materialstoacertainproportionoftheir'failurestresses(yieldinthecaseofsteel,crushinginthecaseofconcrete).Theassumptionsinherentintheelasticmethodaresimilartothoseforordinaryreinforcedconcre
4、te.Inrecent'yearstheconceptsoftheultimateloaddesignphilosophyhavebeenappliedtocompositeactionandabodyofexperimentalevidencehasshownittobeasafe,economicalbasisonwhichtoproportioncompositesections.Althoughatthepresenttimeultimateloaddesignmethodsaredir
5、ectlyapplicableonlytobuildingsandnottobridgesthereseemsnoreasontodoubtthatintimetherestrictionwilldisappear.Beforedealingindetailwiththetwodesignapproaches(elasticandultimateload)basicpointsrequireconsideration.Aclearunderstandingofthewayinwhichtheco
6、mponentmaterials,steelconcreteandshearconnectionreacttoappliedloadisanessentialpreliminarytofullanalysisofthecompositesection.Ofprimaryimportancearethestressstrainsrelationships,whichmustofnecessitybetheproductofcarefullycontrolledexperiment.Theseexp
7、erimentalresultsarenotgenerallysuitedtodirectapplicationandsosimplificationsandidealisationsareadoptedinpractice.Theuseofcomputershasmadeitpossibletoreducetheamountofidealisationrequiredwiththeresultthatcomputer`experiments'cannowbeperformedusingmate
8、rialstress-strainrelationshipsofconsiderablecomplexity.Compositeactionbetweensteelandconcreteimpliessomeinterconnectionbetweenthetwomaterialswhichwilltransfershearbetweenthem.Inreinforcedconcretemembersthenaturalbondofconcretetosteelisoftensufficient
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