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dc.contributor.authorMatzke, Eric M
dc.contributor.authorLequesne, Rémy D.
dc.contributor.authorParra-Montesinos, Gustavo J.
dc.contributor.authorShield, Carol K.
dc.date.accessioned2020-03-17T17:04:06Z
dc.date.available2020-03-17T17:04:06Z
dc.date.issued2015-06
dc.identifier.citationMatzke, Eric M., et al. "Behavior of Biaxially Loaded Slab-Column Connections with Shear Studs." ACI Structural Journal, vol. 112, no. 3, 2015, p. 335+. https;//doi.org/10.14359/51687408en_US
dc.identifier.urihttp://hdl.handle.net/1808/30081
dc.description.abstractResults are presented from four non-prestressed concrete slabcolumn connection subassemblies tested under simulated gravity and earthquake-type loading. Each specimen consisted of a largescale first-story interior slab-column connection reinforced with headed shear studs, loaded to a gravity-shear ratio of 50%, and subjected to biaxial lateral displacements. The slabs, which were nominally identical aside from the shear stud reinforcement design, had a flexural reinforcement ratio in the column strip, based on the effective depth, of 0.7%. Shear stud reinforcement in the test specimens varied in terms of amount and spacing, both between and within stud peripheral lines. All four specimens exhibited drift capacities significantly lower than shown by previous studies. Although the lateral strength of the specimens was governed by the flexural capacity of the slab, severe concrete degradation ultimately limited the drift capacity of the connections. Signs of punching-related damage were first observed during the cycle to 1.85% drift in each loading direction. Test results suggest that the minimum amount of shear reinforcement required in Section 21.13.6 of ACI 318-11 when neither a drift nor a combined shear-stress check is performed (vs ≥ 3.5√fc′, psi [0.29√fc′, MPa]) is adequate for connections subjected to a gravity shear ratio of up to 50% and resultant drifts from biaxial displacements of up to 2.0% if studs are spaced at less than 2d within the first two peripheral lines. For larger drift demands, a maximum stud spacing within the first three peripheral lines of 1.5d is recommended.en_US
dc.description.sponsorshipNetwork for Earthquake Engineering Simulation (NEES) Program (Grant No. 0936519)en_US
dc.publisherAmerican Concrete Instituteen_US
dc.relation.isversionofhttps://iri.ku.edu/reportsen_US
dc.rightsCopyright © 2015, American Concrete Institute. All rights reserved, including the making of copies unless permission is obtained from the copyright proprietors. Pertinent discussion including author’s closure, if any, will be published ten months from this journal’s date if the discussion is received within four months of the paper’s print publication.en_US
dc.subjectConfinementen_US
dc.subjectDrift capacityen_US
dc.subjectPunching shearen_US
dc.subjectSeismicen_US
dc.subjectShear studyen_US
dc.subjectTwo-way slaben_US
dc.titleBehavior of Biaxially Loaded Slab-Column Connections with Shear Studsen_US
dc.typeArticleen_US
kusw.kuauthorMatzke, Eric M.
kusw.kuauthorLequesne, Rémy D.
kusw.kuauthorParra-Montesinos, Gustavo J.
kusw.kuauthorShield, Carol K.
kusw.oastatusna
dc.identifier.doi10.14359/51687408
dc.identifier.orcidhttps://orcid.org/0000-0001-5039-3525en_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.rights.accessrightsopenAccessen_US


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