Research Article
Fragility-Based Improvement of System Seismic Performance for Long-Span Suspension Bridges
Table 6
Damage states of the quasi-isolation and isolation bearings (m).
| ā | DS1 | DS2 | DS3 | DS4 |
| Criteria | Initial slipping or dissipation, 75% ESS | Possible pounding; entering of abutments nonlinearity or shear key degradation | Complete damage of the bearings, 300% (250%) ESS | Possible unseating | Quasi-isolation | ABD@C/T | 0.071 | 0.162 | 0.285 | 0.57 | ABD@A/L | 0.053 | 0.095 | 0.213 | 0.75 | Isolation | ABD@C/T | 0.105 | 0.162 | 0.35 | 0.57 | ABD@A/L | 0.079 | 0.095 | 0.263 | 0.85 |
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