Shear Behavior of RC Beams Strengthened by External Vertical Prestressing Rebar

Table 1

Parameter of the EVPRs.

Parameter	EP-P18-S3	EP-P22-S1	EP-P22-S3	EP-P22-S2	EP-P26-S3
Fp (kN)	18 × 2	22 × 2	22 × 2	22 × 2	22 × 2
sp (mm)	280	340	280	240	280
b (mm)	250	250	250	250	250
σz (MPa)	0.51	0.52	0.63	0.73	0.74