Tensile Performance, Lap-Splice Length and Behavior of Concretes Confined by Prefabricated C-FRCM System

International Journal of Concrete Structures and Materials

Table 7 Summary of test results: columns confinement by C-FRCM jacket.

Index	f’_co (MPa)	f’_cc (MPa)	ε_co (%)	ε_cc (%)	ε_h (%)	f_l (MPa)	k₁	P_max (kN)
C-1	28.58		0.157					505
C-2	28.85		0.188					510
C-3	28.52		0.200					504
Average	28.65		0.182					506
P-1	37.89		0.155					379
P-2	38.99		0.180					390
P-3	37.01		0.165					370
Average	37.96		0.167					380
C-OL-1		37.28		0.186	0.067	0.0872	98.9	948
C-OL-2		36.09		0.199	0.083	0.1080	68.8	918
Average		36.69		0.193	0.075	0.0976	83.8	933
C-S1-1		40.68		0.244	0.189	0.2461	48.8	1035
C-S1-2		39.96		0.237	0.184	0.2396	48.7	1074
Average		40.32		0.241	0.187	0.2428	48.7	1055
P-S1TB-1		42.86		0.246	0.200	0.2604	13.2	1053
P-S1TB-2		40.57		0.237	0.056	0.3086	8.45	1090
Average		41.72		0.242	0.128	0.2845	10.8	1072

f’_cc (or f’_co): P_max/gross area; ε_cc (or ε_co): strain at the peak; ε_h: hoop strain at the peak; f_l: lateral confinement pressure determined using Eq. (2).