Research Article
Progressive Collapse of RC Box Girder Bridges due to Seismic Actions
Table 2
Bridge models and box girder reinforcements (unit: mm).
| Model | Ground motion | Bridge system | Sec. | Reinforcement of the box girder | Reinforcement ratio (%) | A | B | C | D | Ø (mm)/spacing (mm) | No. of bars Ø (mm) |
| A1-M-K | Kobe | Monolithic | 1 | Ø16/125 | Ø18/125 | 16Ø32 | 10Ø32 | 100 | 2 | 34Ø32 |
| A2-M-K | Kobe | Monolithic | 1 | Ø10/125 | Ø10/125 | 16Ø18 | 10Ø18 | 35 | 2 | 34Ø18 |
| A3-M-K | Kobe | Monolithic | 1 | Ø10/125 | Ø8/125 | 16Ø16 | 10Ø16 | 25 | A3-M-C | Chi-Chi | | | A3-M-N | Northridge | 2 | 34Ø16 | A3-C-K | Kobe | Continuous | 1 | Ø10/125 | Ø8/125 | 16Ø16 | 10Ø16 | A3-C-C | Chi-Chi | | | A3-C-N | Northridge | 2 | 34Ø16 | A3-S-K | Kobe | Simple | 1 | Ø10/125 | Ø8/125 | 30Ø16 | 10Ø16 | A3-S-C | Chi-Chi | A3-S-N | Northridge |
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∗-M-∗: monolithic; ∗-C-∗: continuous; and∗-S-∗ simple bridges. ∗-∗-C: Chi-Chi; ∗-∗-K: Kobe; and ∗-∗-N: Northridge.
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