cross-sectiontoinduceashearfailure.Thespecimenswerereinforcedwith-mmsteelstirrupsthroughouttheirentirespan.Thestirrupsspacingintheshearspanofinterest,righthalf,wasselectedtoallowfailureinthatspan.SeriesSOconsistedofeightbeamspecimens,whichhadthesamecross-sectiondimensionandlongitudinalsteelreinforcementasforseriesSW.NostirrupswereprovidedinthetesthalfspanasillustratedinFig.b.Eachmainseries(i.e.seriesSWandSO)wassubdividedintotwosubgroupsaccordingtoshearspan-to-effectivedepthratio.Thiswasselectedtobea/d=and,resultinginthefollowingfoursubgroups:SW;SW;SO;andSO.毕业设计外文文献及译文--ThemechanicalpropertiesofthematerialsusedformanufacturingthetestspecimensarelistedinTable.FabricationofthespecimensincludingsurfacepreparationandCFRPinstallationisdescribedelsewhere[].Table..StrengtheningschemesOnespecimenfromeachseries(SW-,SW-,SO-andSO-)wasleftwithoutstrengtheningasacontrolspecimen,whereaseightbeamspecimenswerestrengthenedwithexternallybond