資源描述：
《土木外文翻譯--高溫下鋼筋混凝土中鋼筋的性能》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在工程資料-天天文庫。
1、外文原文：ResearchLettersinMaterialsScienceVolume2008(2008),ArticleID814137,4pagesdoi:10.1155/2008/814137ResearchLetterPropertiesofReinforcedConcreteSteelRebarsExposedtoHighTemperatures?lkerBekirTop?uandCenkKarakurtDepartmentofCivilEngineering,Eski?ehirOsmangaziUni
2、versity,26480Eski?ehir,TurkeyReceived12February2008;Accepted31March2008AcademicEditor:RajivS.MishraCopyright?2008?lkerBekirTop?uandCenkKarakurt.ThisisanopenaccessarticledistributedundertheCreativeCommonsAttributionLicense,whichpermitsunrestricteduse,distributi
3、on,andreproductioninanymedium,providedtheoriginalworkisproperlycited.AbstractThedeteriorationofthemechanicalpropertiesofyieldstrengthandmodulusofelasticityisconsideredastheprimaryelementaffectingtheperformanceofsteelstructuresunderfire.Inthisstudy,hot-rolledS2
4、20andS420reinforcementsteelrebarsweresubjectedtohightemperaturestoinvestigatethefireperformanceofthesematerials.Itisaimedtodeterminetheremainingmechanicalpropertiesofsteelrebarsafterelevatedtemperatures.Steelsweresubjectedto20,100,200,300,500,800,and950°Ctempe
5、raturesfor3hoursandtensiletestswerecarriedout.EffectoftemperatureonmechanicalbehaviorofS220andS420weredetermined.Allmechanicalpropertieswerereducedduetothetemperatureincreaseofthesteelrebars.ItisseenthatmechanicalpropertiesofS420steelwasinfluencedmorethanS220s
6、teelatelevatedtemperatures.1.IntroductionFireremainsoneoftheseriouspotentialriskstomostbuildingsandstructures.Sinceconcreteiswidelyusedinconstruction,researchonfireresistanceof25concretebecomesmoreandmoreimportant.Manyresearchersallovertheworldhavedonesomerese
7、archesonthissubject.Themechanicalpropertiesofallcommonbuildingmaterialsdecreasewithelevationoftemperature.Thebehaviorofareinforcedconcretestructureinfireconditionsisgovernedbythepropertiesoftheconstituentmaterials,concrete,andsteel,athightemperature.Bothconcre
8、teandsteelundergoconsiderablechangeintheirstrength,physicalproperties,andstiffnessbytheeffectsofheating,andsomeofthesechangesarenotrecoverableaftersubsequentcooling[1].Itisnecessar
