Research Article
Behavior of Strengthened Composite Prestressed Concrete Girders under Static and Repeated Loading
Table 6
Summary of test results for girders G2 and P2.
| Test results | Girder G2 | G2/G1, % | Girder P2 | P2/P1, % | P2/G2, % |
| Mcr, kN·m | 1096 | 101 | 1255 | 98.4 | 114.5 | Δcr, mm | 32 | 100 | 44 | 104.8 | 137.5 | My, kN·m | 1639 | 96.6 | 2104 | 98.6 | 128.4 | Δy, mm | 113 | 117.7 | 136 | 147.8 | 120.4 | Mu, kN·m | 1834 | 93.1 | 2128 | 91.5 | 116.0 | Δu, mm | 163 | 87.6 | 153 | 92.7 | 93.9 | Residual deflection, mm | 119 | 129.3 | 91 | 116.7 | 76.6 | Ductility index, Δu/Δy | 1.44 | 74.2 | 1.13 | 63.1 | 78.5 | Δ at service load level (70% of ultimate load), mm# | 65 | 180 | 61 | 191 | 93.8 |
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Total absolute measured downward net deflection, #net deflection after subtracting camber value.
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