Fiber-Reinforced Polymer Retrofitting of Predamaged Substandard RC Prismatic Members

Thermou, G. E.; Pantazopoulou, S. J.

Abstract

An experimental study was conducted to investigate the efficiency of FRP jackets in upgrading the seismic behavior of lightly reinforced concrete prismatic members previously damaged under a combination of axial compression and a reversed cyclic lateral displacement history simulating earthquake effects. The test program comprises 13 cantilever prismatic specimens, which, owing to substandard reinforcing details representative of older construction practices in southern Europe, were susceptible to various undesirable modes of damage such as web-shear cracking, longitudinal bar buckling, or lap-splice failure. After repair, the specimens were retested using the same load combination. The efficiency of the repair options considered in the study, which refer to alternative strengthening systems (with glass or carbon wraps), was investigated with reference to the design parameters of the intervention, the type of the applied lateral displacement history, and the mode of failure that had occurred previously in the initial phase of the tests. The results provided valuable insight regarding participation of the FRP jackets in the various mechanisms of resistance, their ability to reverse the effect of initial damage, and to impart deformation capacity to the structural member.

Citation

Thermou, G. E., & Pantazopoulou, S. J. (2009). Fiber-Reinforced Polymer Retrofitting of Predamaged Substandard RC Prismatic Members. Journal of Composites for Construction, 13(6), 535-546. https://doi.org/10.1061/%28asce%29cc.1943-5614.0000057

• Journal Article Type: Article
• Acceptance Date: Jul 8, 2009
• Online Publication Date: Jul 13, 2009
• Publication Date: 2009-12
• Deposit Date: Dec 10, 2018
• Publicly Available Date: Aug 16, 2019
• Journal: Journal of Composites for Construction
• Print ISSN: 1090-0268
• Electronic ISSN: 1943-5614
• Publisher: American Society of Civil Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 13
• Issue: 6
• Pages: 535-546
• DOI: https://doi.org/10.1061/%28asce%29cc.1943-5614.0000057
• Public URL: https://nottingham-repository.worktribe.com/output/1394919
• Publisher URL: https://ascelibrary.org/doi/10.1061/%28ASCE%29CC.1943-5614.0000057
• Additional Information: This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at https://ascelibrary.org/doi/10.1061/%28ASCE%29CC.1943-5614.0000057
• Contract Date: Aug 16, 2019