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1、华北水利水电大学硕士学位论文II万方数据ABSTRACTRESEARCHONTHEEFFECTOFTEMPERATUREONLARGE-DIAMETERSILOSABSTRACTTemperatureisoneofthekeyeffectofthereinforcedconcretesilo,theeffectwillbeevenmoresignificant,especiallywiththeincreaseofsilodiameter.Butthecurrentregulationsaboutthetemperaturecalc
2、ulationofthesiloeffectistoosimplifiedanduncertainty,andlacktheoreticalandpracticalbasis.Forthisreason,thispapercombineswithalargediameterreinforcedconcretecylindersiloprojecttocarryoutthestudyoflawoftemperatureeffect.ThisarticleselectsthefiniteelementsoftwareABAQUSinsi
3、losof3-dnumericalsimulation,calculatingandanalyzingthesilowhentemperaturedrops20℃andrises20℃basedonthemeasureddata,researchidentifiesthesilointhestressdistributionunderdifferentworkingconditions.Theresultsshowthat:undertheconditionsoftemperaturedroppingandrising,theeff
4、ectoftemperatureonradialstressandverticalstressofconcretesiloisrelativelysmall,theinfluenceofsilomainlyshowshoopstress.Amongthem,theinfluenceoftemperaturedroppingonhoopstressofthewallisveryoutstanding,thevastareainsideandoutsidethewallisinastateofhooptension,showingthe
5、largehooptensilestress,themaximumcanreach2.917MPa.Comprehensivecomparisonoftwokindsofworkingconditionoftheimpactofsilo,hooptensilestressofpartofthestructureexceeddesignvalueoftensilestrengthofconcreteundertheconditionoftemperaturedropping,thisadverseeffectwilldirectlyr
6、esultinthecrackofthesilo,whichmayaffectthenormaluseofstructure,sothat,comparedwithtemperaturerising,theeffectoftemperaturedroppingonsilostructureismoreadverse.Basedonthelinearelasticanalysisofthemainconcretemembersofthelarge-diametersilo,thispapergetstheregularityofsil
7、oundertheeffectoftemperature,whichhopestoprovidesomereferencedopinionsfortheaspectofdesign,constructionandresearchinthefuture.KEYWORDS:Large-diametersilo；Effectoftemperature；Thefiniteelementanalysis;StressIII万方数据华北水利水电大学硕士学位论文IV万方数据目录目录摘要...............................
8、............................................................................................................IABSTRACT
