Behaviour of Eccentric Concrete Columns Reinforced with Carbon Fibre-Reinforced Polymer Bars

Table 4

Comparison of P_Exp./P_Theo by the three calculation methods for 61 concrete columns reinforced with FRP bars.

Calculation method	Method 1: ACI 440.1R-15 [1]	Method 2: Hadi et al. [18]	Method 3: proposal
Equation used	(1) and (3) to (6)	(2) and (3) to (6)	(2) and (3) to (6)
Mean	1.08	0.97	1.05
SD	0.13	0.10	0.10
COV (%)	11.62	9.95	9.88
Range:
Min.	0.87	0.79	0.85
Max.	1.49	1.18	1.26
Number <1.0	16	35	24

Number of specimens (out of 61) having P_Exp./P_Theo less than one.