Seismic behavior and design of reinforced concrete columns confined with FRP stay-in-place formwork

Simple item page
dc.contributor.authorSaatcioglu, M.
dc.contributor.authorOzbakkaloglu, T.
dc.contributor.authorElnabelsy, G.
dc.date.issued2008
dc.description.abstractOne of the applications of fiber-reinforced polymers (FRP) in building and bridge construction is stay-in-place formwork. FRP stay-in-place formwork, in the form of preformed tubes, provides easy form assembly protection of steel reinforcement and concrete against corrosion and chemical attacks while also improving the strength and ductility of structural elements in earthquakeresistant construction. Seismic performance of FRP tubes in building and bridge columns has been investigated through tests of large-scale specimens under simulated seismic loading. The experimental program consisted of tests of circular and square columns confined with carbon FRP (CFRP) tubes. The results indicate that the use of CFRP tubes increases column inelastic deformability significantly. Bridge columns under low levels of axial compression exhibit inelastic drift capacities in excess of 4% before failing in flexural tension due to the rupturing of longitudinal reinforcement. Building columns under higher levels of axial compression show drift capacities in excess of 8% when the behavior is governed by confined concrete. These observations and experimental results were used to develop a displacement-based design procedure for concrete confinement for FRP-encased concrete columns. The paper presents an overview of the experimental program and the design approach developed.
dc.description.statementofresponsibilityM. Saatcioglu, T. Ozbakkaloglu, and G. Elnabelsy
dc.description.urihttp://www.concrete.org/PUBS/JOURNALS/OLJDetails.asp?Home=SP&ID=20245
dc.identifier.citationACI Structural Journal, 2008; 257:149-170
dc.identifier.issn0889-3241
dc.identifier.orcidOzbakkaloglu, T. [0000-0003-3015-736X]
dc.identifier.urihttp://hdl.handle.net/2440/59491
dc.language.isoen
dc.publisherAmer Concrete Inst
dc.rights© Copyright 2010, American Concrete Institute
dc.subjectconcrete confinement
dc.subjectconcrete columns
dc.subjectcarbon fiber-reinforced polymer (CFRP)
dc.subjectdisplacement-based design
dc.subjectductility
dc.subjectearthquake-resistant design
dc.subjectfiberreinforced polymer (FRP)
dc.subjectstay-in-place formwork
dc.titleSeismic behavior and design of reinforced concrete columns confined with FRP stay-in-place formwork
dc.typeJournal article
pubs.publication-statusPublished

Files

Collections

Civil and Environmental Engineering publications