Research Article
Damage Identification for Prestressed Adjacent Box-Beam Bridges
Table 1
Damage cases for evaluating CFTM method.
| Case () | Type () | Component () | Location (m) () | Reduction in modulus (%) () |
| 1 | Local | Beam 6 | 6.10–7.62 | 10 2.3] |
| 2 | Local | Beam 1 | 10.67–12.19 | 50 8.3] |
| 3 | Global | Beam 5 | 0–15.24 | 10 |
| 4 | Global | Beam 9 | 0–15.24 | 50 |
| 5 | Combination 1 | Beam 2 | 9.14–10.67 | 50 13.3] | Beam 5 | 1.52–3.05 | 10 0.4] | Beam 8 | 4.57–6.10 | 25 4.8] |
| 6 | Combination 2 | Beam 2 | 0–15.24 | 25 | Beam 4 | 6.10–7.62 | 50 17.6] | Beam 9 | 9.14–10.67 | 10 1.7] |
| 7 | Combination 3 | Beam 2 | 0–15.24 | 10 | Beam 4 | 10.67–12.19 | 25 2.9] | Beam 9 | 0–15.24 | 30 |
| 8 | Combination 6 | Beam 3 | 3.05–4.57 | 50 8.3] | Beam 3 | 0–15.24 | 25 | Shear Key 6-7 | 0–15.24 | — |
| 9 | Combination 7 (BR 35-17-6.80) | Beam 1 | 0–15.24 | 30 | Shear Key 2-3 | 0–15.24 | — | Shear Key 8-9 | 0–15.24 | — |
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Number in indicates percent reduction in equivalent modulus for local damage cases.
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