Ferhoune, Noureddine2022-04-272022-04-272013http://hdl.handle.net/123456789/13025This paperpresentsresultsoftestsconductedonthinweldedrectangularsteelstubs filled withconcrete that gravelwassubstitutedby10mmcrushedcrystallizedslagstone.Thestudiedsectionwasmadeof two coldsteelplateswithUshapeandweldedwithelectricarctoformasteelboxsection.Thecross- section dimensionswere:100 70 2 mm3. themainstudiedparameterswerethestubheight(200, 300,400,500mm),theeffectofthein filled concrete,thecontinuedweldandtheeccentricforce.The tests werecarriedout28daysafterthedateofcasting.Atotalof20stubsweretestedina50tfmachine up tofailure,4stubssubjectedtoaxialloadcompressionand16stubssubjectedtoeccentricload compression alongtheminorandmajorrigidityaxis.Theaimofthestudyistoprovidesomeevidences that theuseofcrushedslagcouldbeintegratedinthemanufacturingofnon-conventionalconcrete.All failure loadswerepredictedbyusingtheEurocode4andthedesignmethodproposedbyZ.VrceljandB. Uy.Fromtestresults,itwasconfirmed thatthelengthofstubsandtheeccentricloadhadadrasticeffect on theloadcarryingcapacity.Thefailuremodeofcompositestubswasalocalbucklingmodewithall steel sidesdeformedoutwards.TheEurocode4loadspredictionsweregenerallyingoodagreement compared withexperimentalloadsandonsafeside.Theloadsresultsofdesignmethodproposedby Vrcelj andB.Uyweregenerallyonsafesidecomparedwithexperimentalloadexceptthecolumns subject toeccentricloadwith400mmand500mmheightenArticle