Research Article
Full-Scale Experimental Investigation of the Static and Dynamic Stiffness of Prestressed Concrete Girders
Table 7
Equivalent flexural rigidity of the test girders under different damage conditions.
| Girder | Damage degree | (kN) | (mm) | | (%) |
| Z1 | D0/LC0 | 120 | 5.0 | 1.070 | 0 | D1/LC1 | 560 | 35.78 | 0.701 | 34.5 | D2/LC2 | 820 | 97.54 | 0.375 | 65.0 | D3/LC3 | 1160 | 150.49 | 0.344 | 67.9 | D4/LC4 | 1240 | 164.62 | 0.336 | 68.6 |
| Z2 | D0/LC0 | 72 | 3.2 | 1.000 | 0 | D1/LC1 | 520 | 48.48 | 0.479 | 52.1 | D2/LC2 | 840 | 108.22 | 0.346 | 65.4 | D3/LC3 | 1190 | 182.89 | 0.290 | 71.0 | D4/LC4 | 1190 | 184.25 | 0.288 | 71.2 |
| B1 | D0/LC0 | 51 | 2.2 | 1.040 | 0 | D1/LC1 | 580 | 41.65 | 0.622 | 40.2 | D2/LC2 | 920 | 98.79 | 0.416 | 60.0 | D3/LC3 | 1190 | 141.74 | 0.375 | 63.9 | D4/LC4 | 1400 | 175.42 | 0.356 | 65.8 |
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