Research Article
Earthquake-Induced Domino-Type Progressive Collapse in Regular, Semiregular, and Irregular Bridges
Table 1
Material properties of bridge piers [
17].
| | Parameter | Concrete | Steel | | Pier 1 | Pier 2 | Pier 3 |
| | Type | 4 | 1 | 4 | | | Compressive strength | | | | | | Tensile strength | | | | | | Strain at unconfined peak stress | 0.002 m/m | 0.002 m/m | 0.002 m/m | — | | Constant confinement factor | 1.2 | 1.2 | 1.2 | — | | Young’s modulus | | | | | | Shear modulus | | | | | | Specific weight | | | | | | Separation strain | 0.1 | 0.1 | 0.1 | 0.2 | | Friction coefficient | 0.8 | 0.8 | 0.8 | 0.8 | | Postyield stiffness ratio | — | — | — | 0.01 |
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