Table 3 Cost analysis of two different strengthening methods
Specimens | Increase of ultimate load/kN | Total cost of reinforcement/CNY | Cost/increase of ultimate load |
|---|---|---|---|
C1CFST | 519.80 | (80 + 56) × 0.48 = 64.81 | 0.12 |
C2CFST | 839.35 | (80 + 56) × 0.95 = 129.62 | 0.25 |
C3CFST | 1095.65 | (80 + 56) × 1.43 = 194.43 | 0.18 |
C4CFST | 1446.00 | (80 + 56) × 1.91 = 259.24 | 0.18 |
S3CFST | 514.06 | 49.66 × 0.48 = 23.84 | 0.05 |
S6CFST | 1009.98 | 92.50 × 0.48 = 44.40 | 0.04 |