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dc.contributor.authorLequesne, Rémy D.
dc.contributor.authorParra-Montesinos, Gustavo
dc.contributor.authorWight, James K.
dc.date.accessioned2017-03-16T18:30:59Z
dc.date.available2017-03-16T18:30:59Z
dc.date.issued2013
dc.identifier.citationLequesne, R. D., Parra-Montesinos, G. J., and Wight, J. K., "Seismic Behavior and Detailing of High-Performance Fiber-Reinforced Concrete Coupling Beams and Coupled Wall Systems," ASCE Journal of Structural Engineering, 139, 2013, pp. 1362–1370.en_US
dc.identifier.urihttp://hdl.handle.net/1808/23432
dc.description.abstractThe seismic behavior of coupling beams and walls constructed with tensile strain-hardening, high-performance fiber-reinforced concrete (HPFRC) was studied through tests of large-scale precast coupling beams and coupled walls. A precast coupling beam design was developed to speed up construction and minimize interference with wall reinforcement. Three isolated precast coupling beam specimens with a span-to-depth ratio of 1.75 were tested under large displacement reversals. Test results indicate the use of HPFRC allows a reduction of the reinforcement required to achieve a stable coupling beam response by providing confinement and contributing to beam shear strength. A concrete design shear stress capacity of 0.41√fc’, [MPa] (5√fc’, [psi]), where fc’ is the compressive strength of the concrete, was found to be appropriate. In addition to the coupling beam tests, two four-story coupled wall specimens with precast HPFRC and regular concrete coupling beams were tested under lateral displacement reversals. Besides allowing the evaluation of seismic behavior of coupled walls with HPFRC coupling beams, the use of HPFRC in the plastic hinge regions of the walls as a means of relaxing transverse wall reinforcement was evaluated. The two coupled wall specimens exhibited drift capacities of at least 2.5%. The HPFRC coupling beams were more ductile and damage tolerant than the regular concrete beams. The incorporation of an HPFRC material in the wall allowed the use of a concrete design shear stress capacity of 0.33√fc’, [MPa] (4√fc’, [psi]) and a wider spacing of transverse reinforcement confining the wall boundary regions.en_US
dc.publisherAmerican Society of Civil Engineersen_US
dc.relation.isversionofhttps://iri.ku.edu/reportsen_US
dc.subjectCoupled wallsen_US
dc.subjectCoupling Beamsen_US
dc.subjectReinforced Concreteen_US
dc.subjectPrecast Concreteen_US
dc.subjectFibersen_US
dc.subjectConfinementen_US
dc.subjectShearen_US
dc.subjectDriften_US
dc.titleSeismic Behavior and Detailing of High-Performance Fiber-Reinforced Concrete Coupling Beams and Coupled Wall Systemsen_US
dc.typeArticleen_US
kusw.kuauthorLequesne, Rémy D.
kusw.kudepartmentInfrastructure Reseach Instituteen_US
kusw.oastatusna
kusw.oaversionScholarly/refereed, author accepted manuscripten_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.rights.accessrightsopenAccess


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