Research Article
Impact of Plastic Hinge Properties on Capacity Curve of Reinforced Concrete Bridges
Table 2
Bridge #1-W columns’ geometric properties and reinforcement
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| | | Pier #2 | Pier #3 | Pier #4 | | Old | Widened | Old | Widened | Old | Widened |
| | Column | | | | | | | | Clear length (ft) | 28.6 | 25.8 | 32.2 | 29.2 | 26.8 | 24.2 | | Shape | Circular | Circular | Circular | Circular | Circular | Circular | | Dimensions (in.) | 36 | 36 | 36 | 36 | 36 | 36 | | Compressive strength (ksi) | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | | Longitudinal reinforcement | | | | | | | | Size and number | 12#9 | 12#9 | 12#9 | 12#9 | 12#9 | 12#9 | | Yield strength (ksi) | 40 | 60 | 40 | 60 | 40 | 60 | | Transverse reinforcement | | | | | | | | Type | Hoop | Spiral | Hoop | Spiral | Hoop | Spiral | | Size and number | #3 | #4 | #3 | #4 | #3 | #4 | | Spacing (in.) | 12.0 | 3.3 | 12.0 | 3.3 | 12.0 | 3.3 | | Lap splice | | | | | | | | Within plastic hinge | Yes | No | Yes | No | Yes | No | | Length (in.) | 50.0 | — | 50.0 | — | 50.0 | — |
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