Effect of Spiral Spacing and Concrete Strength on Behavior of GFRP-Reinforced Hollow Concrete Columns
Omar S AlAjarmeh, Allan C Manalo, Brahim Benmokrane, Warna Karunasena, Priyan Mendis
Journal of Composites for Construction | ASCE-AMER SOC CIVIL ENGINEERS | Published : 2020
Hollow concrete columns (HCCs) are one of the preferred construction systems for bridge piers, piles, and poles because they require less material and have a high strength-to-weight ratio. While spiral spacing and concrete compressive strength are two critical design parameters that control HCC behavior, the deterioration of steel reinforcement is becoming an issue for HCCs. This study explored the use of glass fiber-reinforced polymer (GFRP) bars as longitudinal and lateral reinforcement for hollow concrete columns and investigated the effect of various spiral spacing and different concrete compressive strengths (f′c). Seven HCCs with inner and outer diameters of 90 and 250 mm, respectively..View full abstract
The authors are grateful to Pultrall Canada and Inconmat V-ROD Australia for providing the GFRP bars and spirals. The assistance of the postgraduate students and technical staff at the Centre of Future Materials (CFM) is also acknowledged. The first author is also grateful for the doctoral scholarship provided by Tafila Technical University (TTU) in Jordan.