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Characterization and optimization of a steel beam to RC wall connection for use in innovative hybrid coupled wall systems

Tijdschriftbijdrage - Tijdschriftartikel

Steel-concrete hybrid solutions with replaceable fuses as coupling elements and appropriately detailed com-posite connections have shown their efficiency to design safe and easily repairable earthquake-resisting struc-tures.Inthisgeneralframework,thebehaviorofapossiblesteeltoconcretecompositeconnectiontobeusedinarecently suggested Hybrid Coupled Wall (HCW) system, consisting of a reinforced concrete shear wall coupledwithsteelsidecolumnsviadissipativesteelshearlinks,isstudiedinthispaper.ThesteelshearlinksareboltedtoasteelprofileeitherpartlyembeddedorpassingthroughtheRCwall.Theconnectionzoneisdesignedinsuchawaythatthedamagealwaysoccursinthesteelshearlinks(fuses)priortoanydamageintheRCwallingeneralandintheconnectionzoneinparticular.Theemphasisliesthereforeonthecharacterizationofasuitable“steellink+embedded composite connection within the RC wall” configuration and on the evaluation of an appro-priate embedment length allowing the concentration of seismic damage to the replaceable steel links. To thispurpose, twojointconfigurations aredesigned basedon acapacity-basedapproach, namely“partlyembedded”and “completely passing through” steel beam, and are examined through detailed FE analyses. A parametricstudy is carriedout to provide sufficient insight into the system interms of strength,stiffness and local bearingstrength, in view of validating the proposed design procedure
Tijdschrift: Structures
ISSN: 2352-0124
Volume: 23
Pagina's: 111 - 125
Jaar van publicatie:2020
Trefwoorden:Steel and concrete hybrid connections, Embedment length, Energy dissipation, Seismic-resistant structures, Embedded steel sections
BOF-keylabel:ja
IOF-keylabel:ja
BOF-publication weight:1
CSS-citation score:2
Authors from:Higher Education
Toegankelijkheid:Closed