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Ultimate behavior of axially loaded RC wall-like columns confined with GFRP
The assessment of the effectiveness of the FRP (fiber reinforced polymer) confinement on rectangular RC (reinforced concrete) columns with high aspect ratio, wall-like still represents an unresolved issue. Provided is more experimental evidence about the behavior of such members confined with both uni-directional and quadri-directional glass FRP laminates. Particular attention is devoted to issues related to the premature failure of confining fibers experimentally observed in wall-like columns. Test results on nine axially loaded columns are presented; emphasis is also given to the analysis of FRP strain profiles along the sides of the cross-section. The analysis of test results highlights that glass FRP confinement could determine significant strength and ductility increases; the discussion of failure modes points out that the failure of glass FRP confined wall-like columns is controlled by the shape of the cross-section and occurs at transverse strains in the jacket much lower than those ultimate of the fibers. Theoretical-experimental comparisons are performed using some available models for strength prediction of such members.
Ultimate behavior of axially loaded RC wall-like columns confined with GFRP
The assessment of the effectiveness of the FRP (fiber reinforced polymer) confinement on rectangular RC (reinforced concrete) columns with high aspect ratio, wall-like still represents an unresolved issue. Provided is more experimental evidence about the behavior of such members confined with both uni-directional and quadri-directional glass FRP laminates. Particular attention is devoted to issues related to the premature failure of confining fibers experimentally observed in wall-like columns. Test results on nine axially loaded columns are presented; emphasis is also given to the analysis of FRP strain profiles along the sides of the cross-section. The analysis of test results highlights that glass FRP confinement could determine significant strength and ductility increases; the discussion of failure modes points out that the failure of glass FRP confined wall-like columns is controlled by the shape of the cross-section and occurs at transverse strains in the jacket much lower than those ultimate of the fibers. Theoretical-experimental comparisons are performed using some available models for strength prediction of such members.
Ultimate behavior of axially loaded RC wall-like columns confined with GFRP
Bruchverhalten von axial belasteten wandartigen Säulen aus verstärktem Beton umgeben von glasfaserverstärktem Kunststoff
Prota, Andrea (author) / Manfredi, Gaetano (author) / Cosenza, Edoardo (author)
Composites, Part B: Engineering ; 37 ; 670-678
2006
9 Seiten, 11 Bilder, 4 Tabellen, 13 Quellen
Article (Journal)
English
Ultimate behavior of axially loaded RC wall-like columns confined with GFRP
| British Library Online Contents | 2006
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