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Axial Behavior of Square Reinforced Concrete Columns Strengthened with Lightweight Concrete Elements and Unbonded GFRP Wrapping
This paper presents a new, efficient, and economic confinement technique for square reinforced concrete (RC) columns with unbonded glass fiber-reinforced polymer (GFRP) wrapping and lightweight concrete elements at the side faces. Three confined columns with different reinforcement ratios were tested under concentric axial force. The force-deformation responses show a distinctly increased load-carrying capacity at plastic deformations up to 4% average axial strain. This confinement technique is a considerable improvement for square columns with a large side-to-corner radius. Only a slight change in column geometry has to be accepted because of the use of unbonded lightweight concrete panels.
Axial Behavior of Square Reinforced Concrete Columns Strengthened with Lightweight Concrete Elements and Unbonded GFRP Wrapping
This paper presents a new, efficient, and economic confinement technique for square reinforced concrete (RC) columns with unbonded glass fiber-reinforced polymer (GFRP) wrapping and lightweight concrete elements at the side faces. Three confined columns with different reinforcement ratios were tested under concentric axial force. The force-deformation responses show a distinctly increased load-carrying capacity at plastic deformations up to 4% average axial strain. This confinement technique is a considerable improvement for square columns with a large side-to-corner radius. Only a slight change in column geometry has to be accepted because of the use of unbonded lightweight concrete panels.
Axial Behavior of Square Reinforced Concrete Columns Strengthened with Lightweight Concrete Elements and Unbonded GFRP Wrapping
Herwig, Andrin (author) / Motavalli, Masoud (author)
Journal of Composites for Construction ; 16 ; 747-752
2012-05-21
62012-01-01 pages
Article (Journal)
Electronic Resource
English
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