混凝土相关外文翻译

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1、温州大学本科毕业设计建筑与土木工程学院Applicationofthermodynamics-basedrate-dependentconstitutivemodelsofconcreteintheseismicanalysisofconcretedamsAbstract:Thispaperdiscussestheseismicanalysisofconcretedamswithconsiderationofmaterialnonlinearity.Basedonaconsistentrate-depe

2、ndentmodelandtwothermodynamics-basedmodels,twothermodynamics-basedrate-dependentconstitutivemodelsweredevelopedwithconsiderationoftheinfluenceofthestrainrate.Theycandescribethedynamicbehaviorofconcreteandbeappliedtononlinearseismicanalysisofconcretedamst

3、akingintoaccounttheratesensitivityofconcrete.Withthetwomodels,anonlinearanalysisoftheseismicresponseoftheKoynaGravityDamandtheDagangshanArchDamwasconducted.Theresultswerecomparedwiththoseofalinearelasticmodelandtworate-independentthermodynamics-basedcons

4、titutivemodels,andtheinfluencesofconstitutivemodelsandstrainrateontheseismicresponseofconcretedamswerediscussed.Itcanbeconcludedfromtheanalysisthat,duringseismicresponse,thetensilestressisthecontrolstressinthedesignandseismicsafetyevaluationofconcretedam

5、s.Indifferentmodels,theplasticstrainandplasticstrainrateofconcretedamsshowasimilardistribution.Whentheinfluenceofthestrainrateisconsidered,themaximumplasticstrainandplasticstrainratedecrease.Keywords:concrete;constitutivemodel;ratedependency;concretedam;

6、nonlinearity;seismicanalysis1IntroductionChinahasabundantwaterresources.Aspartofthenationalenergyandwaterconservancyplan,abatchof300m-levelhighconcretearchdamsareorwillsoonbeunderconstruction.Mostofthedamsaresituatedinregionsofstrongseismicactivity.Their

7、designedseismicaccelerationsreach0.2g-0.32g(g=9.81m/s2),withaprobabilityofexceedanceof2%overa100-yearperiod.ThedesignedmaximumaccelerationoftheDagangshanArchDamevenreaches0.5575g.Theinfluenceofearthquakesshouldbeconsideredandcautiousargumentsandinvestiga

8、tionsshouldbemadeabouttheseismicsafetyofthedamstoensuretheirsafeoperationandminimizedamagefromearthquakes.Greatprogresshasbeenmadeinthefieldoftechnologyfordynamicanalysisofconcretedamsduringearthquakes.However,someissuesne