文档介绍：该【experimental study on performance of steel fiber-reinforced concrete v-shaped columns 2021 rafea f. hassan文献参考 】是由【碧痕】上传分享，文档一共【20】页，该文档可以免费在线阅读，需要了解更多关于【experimental study on performance of steel fiber-reinforced concrete v-shaped columns 2021 rafea f. hassan文献参考 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。:..buildingsArticleExperimentalStudyonPerformanceofSteelFiber-ReinforcedConcreteV-,-Salim1,,*1CivilEngineeringDepartment,CollegeofEngineering,UniversityofBabylon,Babylon,Iraq;.?******@(.);.******@(.-S.)2CivilEngineeringDepartment,UniversityofTechnology,Baghdad,Iraq;******@,OhioUniversity,Athens,OH45701,USA*Correspondence:******@:StructuralengineershaveusedV--shapedcolumnunderlinestheindividualpurposeofthebase?,uidanceonthedesignofV--shapedreinforcedconcretecolumnswiththreeanglesbetweencolumns(30,60,and90)inorderfortheresultstobeusedinthedesignandanalysisoftheV-%dosageofmicro-straight-steel?ber(MSSF)-shapedcolumnwith30,regardlessoftheconcretetype(withandwithoutMSSFs),exhibitedcrushingatlegendswhenthesamplereachedtheultimateload,urredatthelegendsduringthetestfortheotherCitation:Hassan,.;Al-Salim,V--shapedcolumns,theultimateloadcapacitywasdecreasedby24%,23%,and20%forV-shapedcolumnswith30,60,and90.;Mohammed,.;Hussein,,?cantlyimprovedthePerformanceofSteelFiber-paredtothereferencespecimenswiththenormalConcreteV-(NRC).Thesteel-?ber-reinforcedconcrete(SFRC)verticalcolumnspecimenBuildings2021,11,,andtheotherSFRCV-shapedand?exuralspecimenshttps:///:V-shapedcolumn;steelfiberreinforcedconcrete;P–Mdiagram;reinforcedconcrete;columnAcademicEditors:GaochuangCai,:2October2021Accepted:9December2021Inrecentyears,theintensityinthedesignofbuildingsandbridgeshasbeenvast,andPublished:-shapedcolumns[1–4].ThemainadvantagesoftheV-shapedcolumnarethatthePublisher’sNote:MDPIstaysneutralmiddlespanisshort,-shapedcolumndesigngenerallyrequiresmoresteelreinforcementpublishedmapsandinstitutionalaf?l-thantheequivalentstraightcolumn,soitisverysigni?-reinforcedrebarandmixing?berswithconcretematerials[5–7].Fiber-reinforcedconcrete(FRC)isde??bersinconcreteelementsdelayscrackCopyright:?,improvingconcretestrengthandpost-crackingperformance[5].ThisuseLicenseeMDPI,Basel,-?ber-reinforcedconcrete(SFRC)beamsintermsofload-essarticlebearingcapacity,energydissipationability,deformation,residualstiffness,-?ber-reinforcedconcretebeamssigni?cantlymonsimprovedaftercracking[6].Ontheotherhand,theinclusionofsteel?bersinconcreteBY)license(https://componentsmayimprovetheductilityratherthantheconcretestrengths[7]./licenses/by/StructuralengineersusedV-/).inclinationoftheV-shapedcolumnunderlinestheindividualpurposeofthebase?,11,:///://rnal/buildings:..Buildings2021,11,6482of20rowsofcolumnsareprovidedtothesuperior?oors,transferringalltheloadstothebase?-shapedcolumncanexistusingdifferentapproaches:entricsupport,withacantilever,?ciencyofaV-shapedcolumnstructuredependsontheangleofinclination,thestrengthoftheconstructionmaterials,therigidityofthebasehinges,andtheframethatconnectedtheendstopreventdisplacementoftheV-shapedframe[8].ToimprovetheperformanceoftheV-shapedcolumns,FRCcouldbeused,duetoitsseveralbene??bersthatimproveitsstructuralintegrity[8–13].AzzawiandAbolmaail[14]testedninespecimenstoinvestigatetheimpactofsteel??[15]conductedanexperimentaltesttostudytheeffectofthemicro-steel??rstcrackload,ultimatestrength,%steel?-TikriteandHadi[16]examinedtheimpactonthebehaviorofreactivepowderconcretecircularcolumns,addingmicro-straight,macro-deformed,waste-industrialhy-bridization,andwastesteel?bersunderaxialand??cantlyenhancedbyaddingsteel?bers,mainlyinthemicro-straightsteel?,themicro-straightsteel?[17]heseismicperformanceofinclinedcolumnsona1/20scaledbridgemodelwithaY--shapedcolumns,whiletheshearstresshadaninsigni?cantin?uenceonthedamagetoY--shapedcolumns,TokgozandDundar[18]presentedanexperimentalprogrambyconstructingandtesting16L-shapedplainandsteel?bercolumnswithahookedsteel-?bercontent(39,58,and78kg/m3).Thetestresultsprovedthatusingsteel?bersinconcreteaffectsthestructuralbehavioroftheL-?uencethecon?gurationofthebuildingsandfurniturearrangementinconventionalbuildingconstruction,,.[19]testedatwo-?nite-,peakload,coef?cientofductility,energydissipationcapacity,[20,21]presentedanexperimentalinvestigationoftheseismicbehaviorofL--bearingcapability,failuremode,anddeformationductilitywereexaminedbasedontestsonsixL-?ndingsrevealthatsampleswithaloweraxialloadandhighstirruppropertiesvaluesarehigherintermsofductilityandseismicef?,sampleswithasmalleraxialloadorsmallstirruppropertiesvalueswerelowerinductilityandseismicef?.[1]providedanoverviewofthecapacityofV--shapedRCbridgebents?exuralandshearcapacitieswasveri?edagainstexperimental?ndingsfrom1:3-,,thereisnospeci?cationandguidanceondesigningaV-shapecolumnformicro-straightsteel-?ber(MSSF)--shapedcolumn,understandingthebehaviorofV-shapedreinforcedconcretecolumns,reinforcedwithdifferentanglesbetweencolumns,:..Buildings2021,11,-shapedreinforcedconcretecolumnswiththreeanglesbetweencolumns(30,60,and90)inorderfortheresultstobeusedinthedesignandanalysisoftheV-%wasmixedwithconcretetostudytheeffectsofMSSFontheV--shapedcolumnswithcantileverendswereconductedtosimulateacriticalcaseandshowtheMSSF’sin?-shapedcolumnspecimens,twostraightcolumnsandtwobeamswerealsotestedtostudytheimpactofMSSFonaxialcompressionand?,horizontalmovementattheunrestrainedtips,andrelativedisplacementattheconvergenceregionofthetestedV-shapedcolumnweredocumentedateachloadstep,alongwiththe?,pressiontestmethodswereconductedtoidentifytheaxialloadandbendingmomenttoassembleadesigninteractionaxialload–bendingmoment(P–M)(30,60,and90)inV-shapedspecimenswereusedinanattempttoobtainmorepointsfortheP–10cm[22],andfourrebarsof8mmdiameterand5mmdiameterrebarswereutilizedaslongitudinalreinforcementandclosedstirrupsspacedat6cm,respectively,--shapedcolumnare20cmwide,15cmhigh,and10cmindepth,withinclinedcolumnsof70cminnerlengthandasquarecross-,theangleofinclinationbetweenthetwocolumns(q)anddistancefromtheendcolumns(X)-shapedspecimenswerenormal-strengthconcrete(NSC),?5and?-shapedcolumns,?8mmwereutilizedaslongitudinalreinforcement,andbarsof5mmdiameterwith6cmspacingwereusedasclosedstirrupsfortheinclinedparts,alongwiththebaseoftheV---shapedportionwereplacedperpendicularlytothelongitudinalreinforcement,?gurationX(cm)q()NRC-olumn--NRC-30NSCV-shape-13630NRC-60NSCV-shape-27060NRC-90NSCV-shape-310090NRC-BNSCBeam--FRC-olumn--FRC-30SFRCV-shape-13630FRC-60SFRCV-shape-27060FRC-90SFRCV-shape-310090FRC-BSFRCBeam--:..BuildingsBuildings20212021,11,,xFORPEERREVIEW11,6484of4of2021(a)(b).(a)(ConfigurationsofVa)Con?gurationsofV-shapedcolumnand(-shapedcolumnand(b)reinforcementb),coarseaggregateand?,(cm)??(°)Configurationrequirementsofthespeci?cation[NRC-0NSC23].Potablewaterwasusedforwashing,casting,andColumn---30NSCV-shape-13630mendations,%wasaddedtotheconcreteNRC-60NSCV-shape-27060mixture[15,24].This?berhasalengthof13mmwithanominaltensilestrengthofmoreNRC-90NSCV-shape-310090than2100MPaprovidedbythemanufacturer(seeFigure2).-14[NRC22]mendations,pressivestrengthwitha-BNSCBeam--cementcontentof(450kg/mFRC-0SFRC3).Thewater/cementratiowas()withan8–--Buildings2021,11,xFORPEERREVIEW5of21Aproportionbyweight(1::)pressivestrengthatFRC-30SFRCV-shape-13630(28)-reinforcedbarmaterialproperties,FRC-60SFRCV-shape-27060the712MPaand735MPaultimatestrengthandyieldstressof455MPaand424MPaforFRC-90SFRCV-shape-310090712MPaand735MPaultimathe?8and?5steelbars,receptively,werefoundfollowingASTMA615[25].FRC-BSFRCtestrengthandyieldstressof455MPaand424MPafortheBe