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A platform for research: civil engineering, architecture and urbanism
Cyclic Response of Concrete Bridge Piers Reinforced with Steel or GFRP Bars
The effect of corrosion on the long-term performance of reinforced concrete bridges has led to international interest in the use of non-corroding Glass Fibre-Reinforced Polymer (GFRP) bars. This paper investigates the cyclic response of six one-third scale, concrete bridge piers reinforced with various configurations of steel or GFRP bars. Each specimen was tested under a constant gravity load and reversed quasi-static cyclic lateral loading, before the response of each pier was compared with respect to strength, stiffness, deformability, energy dissipation and damage. The results indicate a hybrid combination of steel longitudinal bars and GFRP spirals can offer a ductile cyclic response with similar or enhanced post-peak performance compared to conventional steel-reinforced concrete. Piers reinforced with GFRP longitudinal and transverse bars had a stable and deformable cyclic response with little strength degradation and residual displacement. However, this was accompanied by a lower initial stiffness and a reduction in hysteretic energy dissipation.
Cyclic Response of Concrete Bridge Piers Reinforced with Steel or GFRP Bars
The effect of corrosion on the long-term performance of reinforced concrete bridges has led to international interest in the use of non-corroding Glass Fibre-Reinforced Polymer (GFRP) bars. This paper investigates the cyclic response of six one-third scale, concrete bridge piers reinforced with various configurations of steel or GFRP bars. Each specimen was tested under a constant gravity load and reversed quasi-static cyclic lateral loading, before the response of each pier was compared with respect to strength, stiffness, deformability, energy dissipation and damage. The results indicate a hybrid combination of steel longitudinal bars and GFRP spirals can offer a ductile cyclic response with similar or enhanced post-peak performance compared to conventional steel-reinforced concrete. Piers reinforced with GFRP longitudinal and transverse bars had a stable and deformable cyclic response with little strength degradation and residual displacement. However, this was accompanied by a lower initial stiffness and a reduction in hysteretic energy dissipation.
Cyclic Response of Concrete Bridge Piers Reinforced with Steel or GFRP Bars
Lecture Notes in Civil Engineering
Ilki, Alper (editor) / Çavunt, Derya (editor) / Çavunt, Yavuz Selim (editor) / Stratford, Cain (author) / Palermo, Alessandro (author)
International Symposium of the International Federation for Structural Concrete ; 2023 ; Istanbul, Türkiye
2023-06-01
10 pages
Article/Chapter (Book)
Electronic Resource
English
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