2019 CSCE Annual Conference - Laval (Greater Montreal)

2019 CSCE Annual Conference - Laval (Greater Montreal) Conference

Effect of Slenderness Ratio on the Performance of Concrete Columns Reinforced with GFRP Bars and Spirals

Dr. Brahim Benmokrane, Universite de Sherbrooke
Dr. Mohammed Afifi
Dr. Hamdy M. Mohamed, University of Sherbrooke
Ahmed El Hamaymy (Presenter)

This study is part of an ongoing research program at the University of Sherbrooke that aims to investigate the structural performance of FRP RC columns. This paper presents test results of an experimental program to describe the behavior of circular concrete columns reinforced with glass fiber-reinforced polymer (GFRP) bars and spirals subjected to concentric loading. The 300 mm diameter columns were designed according to CAN/CSA S806-12 code requirements. The test parameters included reinforcement type (GFRP versus steel); longitudinal GFRP reinforcement ratio; and the slenderness ratio. The study was conducted to investigate the effect of slenderness ratio on the performance and axial capacity of GFRP RC columns. In addition, the study aimed at providing basic technical information and yielding better understanding of the concentric behavior of circular GFRP reinforced with different slenderness ratios. Test results are presented in terms of axial load capacity, axial and lateral deformation, strain behavior of GFRP bars and spirals. Test results are compared with the available design equations in the literature.