Performance Analysis of CFRP Composite Strips Confined RC Columns under Axial Compression

Table 3

Test results of previous studies: strength enhancement ratio.

Paper	Dimension or diameter of the column; (mm)	Height of the column,; (mm)	Confinement type	Type of fibre	Number of layers ()	Strength value of unconfined column () kN	Strength value of FRP confined column; () kN	Strength enhancement ratio; /
Silva [32]	150	750	Full wrap	Normal modulus CFRP	3	468.40	732.99	1.56
Wang and Wu [40]	150	300	Full wrap	Normal modulus CFRP	2	545.77	1317.79	2.41
Wang and Hsu [47]	300	900	Full wrap	GFRP	6	2127	4025	1.89
Hadi [48]	205	925	Full wrap	Normal modulus CFRP	3	552	871.3	1.58
Punurai et al. [49]	76	1200	Full wrap	Normal modulus CFRP	3	36.5	59.64	1.63
Yaqub and Bailey [13]	200	1000	Full wrap	High modulus CFRP	2	826	1356	1.64
Quiertant and Clement [50]	200 × 200	2500	Full wrap	Normal modulus CFRP	2	1211	1578	1.30
Pham et al. [51]	212	800	Full wrap	High modulus CFRP	3	942	2109	2.24
Li et al. [52]	152.4	609.6	Full wrap	E Glass Fibre	2	652.91	866.93	1.33
Siddiqui et al. [53]	150	1200	Full wrap	Normal modulus CFRP	3	258	647.12	2.51
Sharma et al. [54]	125 × 125	1200	Full wrap	GFRP sheet	2	303	596.11	1.97
Present study	125	800	Strip wrap (20 mm spacing)	Normal modulus CFRP	2	252.13	401.23	1.58
Present study	125	800		Normal modulus CFRP	3	252.13	502.09	1.99

: strength value of unconfined column; : strength value of FRP confined column.