From: Flexural Strengthening of RC Columns with Low Longitudinal Steel Ratio using GFRP Bars
Specimen | Peak force, (kN) | Increase in peak force (%) | Displacement at peak force, (mm) | Bending moment, (KNÂ m) | ||||||
---|---|---|---|---|---|---|---|---|---|---|
\({\text{P}}_{peak}^{ + }\) | \({\text{P}}_{peak}^{ - }\) | Average | \(\Delta_{peak}^{ + }\) | \(\Delta_{peak}^{ - }\) | Average | Experimental | Analytical | Errora (%) | ||
NS | 19.21 | − 18.94 | 19.07 | – | 19.87 | − 19.72 | 19.79 | 21.9 | 24.1 | 9.8 |
S08 | 23.41 | − 22.58 | 22.99 | 20 | 20.22 | − 20.48 | 20.35 | 26.4 | 28.2 | 6.6 |
S10 | 26.12 | − 25.69 | 25.90 | 35 | 20.81 | − 20.53 | 20.67 | 29.8 | 31.3 | 5.1 |
S12 | 27.85 | − 27.34 | 27.59 | 44 | 24.72 | − 24.58 | 24.65 | 31.7 | 34.4 | 8.4 |