Experimental Investigation of Ductility in GFRP RC Beams by Confining the Compression Zone

Table 6

Properties of beams.

Groups	Specimens	Confinement type	Width 1^a (mm)	Width 2^b (mm)	Space 1^c (mm)	Space 2^d (mm)	Angle^e (degree)
Group1	RB	—	—	—	—	—	—
Group2	DVR-W30	Discrete vertical	30	20	30	20	0
	DVR-W50		50	20	50	20	0
Group3	DSR-A10-W30	Discrete spiral	30	20	45	55	10
	DSR-A20-W30		30	20	126	136	20
	DSR-A30-W30		30	20	218	228	30
Group4	CSR-SR-W20	Continuous spiral	20	20	100	100	16
	CSR-SC-W20		20	20	100	100	16

^aWidth of CFRP ribbons at one-third of midspan; ^bWidth of CFRP ribbons at one-third of side span; ^cSpace between CFRP ribbons at one-third of midspan; ^dSpace between CFRP ribbons at one-third of side span; ^eAngle of CFRP ribbons.