Research Article
Prediction of Long-Term Prestress Loss and Crack Resistance Analysis of Corroded Prestressed Concrete Box-Girder Bridges
Table 1
Comparison of experimental and theoretical values of long-term prestress loss.
| | Beam | Initial prestressing force of each tendon (kN) | Quantity and layout form of prestressing tendon | Measured value (MPa) | Theoretical value (MPa) | JTG3362-2018 (MPa) | CEB-FIP 90 (MPa) | AASHTO LRFD (MPa) |
| | PC1 | 100.1 | 1 (curve) | 48.0 | 45.0 | 52.8 | 66.5 | 67.4 | | PC3 | 102.3 | 1 (curve) | 45.7 | 45.4 | 52.8 | 66.5 | 67.4 | | PC4 | 135.9 | 1 (curve) | 70.6 | 66.3 | 65.6 | 78.6 | 80.1 | | PC5 | 108.7 | 1 (straight) | 55.2 | 53.8 | 59.6 | 69.5 | 69.4 | | PC6 | 101.4 | 2 (straight) | 53.3 | 56.2 | 56.5 | 62.4 | 68.8 | | PC7 | 102.6 | 1 (straight) | 46.8 | 48.1 | 50.4 | 65.6 | 64.1 | | PC8 | 106.0 | 1 (straight) | 49.0 | 51.2 | 55.1 | 66.0 | 67.6 |
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