簡介:TESTINGOFFULLSCALETWOSTORYSTEELPLATESHEARWALLWITHREDUCEDBEAMSECTIONCONNECTIONSANDCOMPOSITEFLOORSBINGQU,SMASCE1MICHELBRUNEAU,MASCE2CHIHHANLIN3ANDKEHCHYUANTSAI4ABSTRACTATWOPHASEEXPERIMENTALPROGRAMWASGENERATEDONAFULLSCALETWOSTORYSTEELPLATESHEARWALLWITHREDUCEDBEAMSECTIONCONNECTIONSANDCOMPOSITEFLOORS,TOEXPERIMENTALLYADDRESSTHEREPLACEABILITYOFINFILLPANELSFOLLOWINGANEARTHQUAKEANDTHESEISMICBEHAVIOROFTHEINTERMEDIATEBEAMINPHASEI,THESPECIMENWASPSEUDODYNAMICALLYTESTED,SUBJECTEDTOTHREEGROUNDMOTIONSOFPROGRESSIVELYDECREASINGINTENSITYTHEBUCKLEDPANELSWEREREPLACEDBYNEWPANELSPRIORTOSUBMITTINGTHESPECIMENTOASUBSEQUENTPSEUDODYNAMICTESTANDCYCLICTESTTOFAILUREINPHASEIIITISSHOWNTHATTHEREPAIREDSPECIMENCANSURVIVEANDDISSIPATESIGNIFICANTAMOUNTSOFHYSTERETICENERGYINASUBSEQUENTEARTHQUAKEWITHOUTSEVEREDAMAGETOTHEBOUNDARYFRAMEOROVERALLSTRENGTHDEGRADATIONITISALSOFOUNDTHATTHESPECIMENHADEXCEPTIONALREDUNDANCYANDEXHIBITEDSTABLEFORCEDISPLACEMENTBEHAVIORUPTOTHESTORYDRIFTSOF52AND50ATTHEFIRSTANDSECONDSTORY,RESPECTIVELYEXPERIMENTALRESULTSFROMPSEUDODYNAMICANDCYCLICTESTSARECOMPAREDTOSEISMICPERFORMANCEPREDICTIONSOBTAINEDFROMADUALSTRIPMODELUSINGTENSIONONLYSTRIPSANDFROMAMONOTONICPUSHOVERANALYSISUSINGATHREEDIMENSIONALFINITEELEMENTMODEL,RESPECTIVELY,ANDGOODAGREEMENTISOBSERVEDDOI101061/?ASCE?07339445?2016?1343?364?CEDATABASESUBJECTHEADINGSSHEARWALLSSTEELPLATESREPLACEMENTCYCLICTESTSSEISMICDESIGNPSEUDODYNAMICMETHODINTRODUCTIONASTEELPLATESHEARWALL?SPSW?CONSISTSOFINFILLSTEELPANELSSURROUNDEDBYBOUNDARYBEAMSANDCOLUMNSTHESEPANELSAREALLOWEDTOBUCKLEINSHEARANDSUBSEQUENTLYFORMADIAGONALTENSIONFIELDSPSWSAREPROGRESSIVELYBEINGUSEDASTHEPRIMARYLATERALFORCERESISTINGSYSTEMSINBUILDINGS?SABELLIANDBRUNEAU2006?PASTMONOTONIC,CYCLIC,ANDSHAKINGTABLETESTSONSPSWINTHEUNITEDSTATES,CANADA,JAPAN,TAIWAN,ANDOTHERCOUNTRIESHAVESHOWNTHATTHISTYPEOFSTRUCTURALSYSTEMCANEXHIBITHIGHINITIALSTIFFNESS,BEHAVEINADUCTILEMANNER,ANDDISSIPATESIGNIFICANTAMOUNTSOFHYSTERETICENERGY,WHICHMAKEITASUITABLEOPTIONFORTHEDESIGNOFNEWBUILDINGSASWELLASFORTHERETROFITOFEXISTINGCONSTRUCTIONS?EXTENSIVELITERATUREREVIEWSAREAVAILABLEINSABELLIANDBRUNEAU2006BERMANANDBRUNEAU2003A,TONAMEAFEW?ANALYTICALRESEARCHONSPSWHASALSOVALIDATEDUSEFULMODELSFORTHEDESIGNANDANALYSISOFTHISLATERALLOADRESISTINGSYSTEM?THORBURNETAL1983ELGAALYETAL1993DRIVERETAL1997BERMANANDBRUNEAU2003B?RECENTDESIGNPROCEDURESFORSPSWAREPROVIDEDBYTHECSA“LIMITSTATESDESIGNOFSTEELSTRUCTURES”?CSA2003?ANDTHEAISCSEISMICPROVISIONFORSTRUCTURALSTEELBUILDINGS?AISC2005?INNOVATIVESPSWDESIGNSHAVEALSOBEENPROPOSEDANDEXPERIMENTALLYVALIDATEDTOEXPANDTHERANGEOFAPPLICABILITYOFSPSW?BERMANANDBRUNEAU2003A,BVIANANDBRUNEAU2005?HOWEVER,SOMEIMPEDIMENTSSTILLEXISTTHATMAYLIMITTHEWIDESPREADACCEPTANCEOFTHISSTRUCTURALSYSTEMFOREXAMPLE,NORESEARCHHASDIRECTLYADDRESSEDTHEREPLACEABILITYOFINFILLSTEELPANELSFOLLOWINGANEARTHQUAKE,ANDTHEREREMAINUNCERTAINTIESREGARDINGTHESEISMICBEHAVIOROFINTERMEDIATEBEAMSINSPSW?INTERMEDIATEBEAMSARETHOSETOWHICHSTEELPLATESAREWELDEDABOVEANDBELOW,BYOPPOSITIONTOTOPANDBOTTOMBEAMSTHATHAVESTEELPLATESONLYBELOWORABOVE,RESPECTIVELY?THELATTERPROBLEMWASANALYTICALLYADDRESSEDBYLOPEZGARCIAANDBRUNEAU?2006?USINGSIMPLEMODELS,BUTEXPERIMENTALINVESTIGATIONSONTHEBEHAVIOROFINTERMEDIATEBEAMS,PARTICULARLYFORBEAMSHAVINGREDUCEDBEAMSECTION?RBS?CONNECTIONSANDCOMPOSITECONCRETESLABS,CANPROVIDEMUCHNEEDEDINFORMATIONONTHEBEHAVIOROFTHISSTRUCTURALSYSTEMANDHOWTOBESTDESIGNTHEINTERMEDIATEBEAMSTOADDRESSTHEABOVEISSUESWITHREGARDTOSPSWPERFORMANCE,ATWOPHASEEXPERIMENTALPROGRAMWASDEVELOPEDTOTESTATWOSTORYSPSWSPECIMENHAVINGANINTERMEDIATECOMPOSITEBEAMWITHRBSCONNECTIONSTHETESTINGPROGRAMALSOINVESTIGATEDHOWTOREPLACEASTEELPANELAFTERASEVEREEARTHQUAKEANDHOWTHEREPAIREDSPSWWOULDBEHAVEINASECONDEARTHQUAKETHISPAPERSUMMARIZESTHETESTSCONDUCTED,OBSERVEDULTIMATEBEHAVIOR,ANDADEQUACYOFSIMPLEMODELSTOREPLICATETHEGLOBALBEHAVIOROFTHESPSWCONSIDERED1PHDCANDIDATE,DEPTOFCIVIL,STRUCTURALANDENVIRONMENTALENGINEERING,206KETTERHALL,UNIVATBUFFALO,BUFFALO,NY14260?CORRESPONDINGAUTHOR?EMAILBINGQUBUFFALOEDU2DIRECTOR,MULTIDISCIPLINARYCENTERFOREARTHQUAKEENGINEERINGRESEARCHAND,PROFESSOR,DEPTOFCIVIL,STRUCTURALANDENVIRONMENTALENGINEERING,UNIVATBUFFALO,BUFFALO,NY14260EMAILBRUNEAUBUFFALOEDU3ASSISTANTRESEARCHFELLOW,NATIONALCENTERFORRESEARCHONEARTHQUAKEENGINEERING,200,SEC3,XINHAIRD,TAIPEI106,TAIWANEMAILHANKLINNCREEORG4DIRECTOR,NATIONALCENTERFORRESEARCHONEARTHQUAKEENGINEERINGANDPROFESSOR,DEPTOFCIVILENGINEERING,NATIONALTAIWANUNIV,200,SEC3,XINHAIRD,TAIPEI106,TAIWANEMAILKCTSAINCREEORGNOTEASSOCIATEEDITORSCOTTACIVJANDISCUSSIONOPENUNTILAUGUST1,2016SEPARATEDISCUSSIONSMUSTBESUBMITTEDFORINDIVIDUALPAPERSTOEXTENDTHECLOSINGDATEBYONEMONTH,AWRITTENREQUESTMUSTBEFILEDWITHTHEASCEMANAGINGEDITORTHEMANUSCRIPTFORTHISPAPERWASSUBMITTEDFORREVIEWANDPOSSIBLEPUBLICATIONONJANUARY18,2015APPROVEDONJULY5,2015THISPAPERISPARTOFTHEJOURNALOFSTRUCTURALENGINEERING,VOL134,NO3,MARCH1,2016?ASCE,ISSN07339445/2016/3364–373/2500364/JOURNALOFSTRUCTURALENGINEERING?ASCE/MARCH2016TATIONISPROVIDEDELSEWHERE?TSAIETAL2006QUANDBRUNEAU2016?FIVEVIDEOCAMERASWEREUSEDTORECORDTHEGLOBALBEHAVIOROFTHESPECIMENANDTHELOCALBEHAVIORSOFRBSCONNECTI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