Research Article
Fragility-Based Improvement of System Seismic Performance for Long-Span Suspension Bridges
Table 2
The critical EDPs for the examined bridge.
| | Engineering demand parameters | Abbreviation | Direction |
| | Curvature ductility of pylon cross-section (south, north) | PCD@(S, N) | Longitudinal and transverse | | Displacement of bearings of the main bridge | MBD | Longitudinal and transverse | | Axial force relative to yield value of main cables | MAF | — | | Axial force relative to yield value of suspenders | SAF | — | | Curvature ductility of column cross-section at columns (C1, C2) | CCD@(C1, C2) | Longitudinal and transverse | | Displacement of bearings of the approach bridge at column (C) and abutment (A) | ABD@(C, A) | Longitudinal and transverse | | Deformation of backfill passive pressure at abutment | BPD@A | Longitudinal | | Deformation of piles at abutment | PD@A | Longitudinal and transverse | | Deformation of expansion joint between decks(D) and at abutment (A) | EJD@(D, A) | Longitudinal | | Deformation of shear key at columns (C) and at abutments (A) | SKD@(C, A) | Transverse |
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