Research Article
Damage Detection for Continuous Bridge Based on Static-Dynamic Condensation and Extended Kalman Filtering
Table 1
The parameter identification results under continuous excitation.
| | Case | , damage | No noise | 5% noise | | (N/m) (error) | (N/m) (error) | | | (N/m) (error) | (N/m) (error) | | |
| | 1 | intact | 3.10 × 108 (−0.03%) | 3.87 × 108 (−0.18%) | 1.10 | 2.72 × 10−3 | 3.06 × 108 (1.3%) | 3.86 × 108 (0.5%) | 1.00 | 3.20 × 10−3 | | 2 | 3%
5% | 3.00 × 108 (−0.1%) | 3.56 × 108 (−3.1%) | 1.09 | 2.83 × 10−3 | 2.93 × 108 (2.6%) | 3.65 × 108 (0.9%) | 0.85 | 3.90 × 10−3 | | 3 | 10%
10% | 2.79 × 108 (0.08%) | 3.48 × 108 (0.16%) | 1.08 | 2.77 × 10−3 | 2.73 × 108 (2.1%) | 3.45 × 108 (1.1%) | 0.84 | 3.90 × 10−3 | | 4 | 15%
8% | 2.63 × 108 (−0.07%) | 3.56 × 108 (−0.17%) | 1.08 | 2.75 × 10−3 | 2.61 × 108 (0.95%) | 3.57 × 108 (0.14%) | 1.10 | 2.75 × 10−3 |
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