Research Article

Structural Behaviors of Reinforced Concrete Piers Rehabilitated with FRP Wraps

Figure 14

Simplified - interaction diagrams for rectangular reinforced concrete columns ( = amount of rebar; = number of FRP plies; and = compressive strength of concrete).
(a) Pier dimension: 0.6 m by 0.6 m, = 12, , and = 6,500 psi
(b) Pier dimension: 0.6 m by 0.6 m, = 12, = 4, and = 4,000 psi
(c) Pier dimension: 0.3 m by 0.3 m, = 12, = 3, and = 6,500 psi
(d) Pier dimension: 0.3 m by 0.3 m, = 12, = 3, and = 4,000 psi