Research Article
A Novel Approach to Evaluate the Time-Variant System Reliability of Deteriorating Concrete Bridges
Table 4
Statistical parameters of random variables.
| Variable | Nominal | Mean | COV | Distribution type |
| | 34,500 MPa | 34,500 MPa | 0.10 | Normal | | 32.4 MPa | 40.5 MPa | 0.12 | Normal | | 200,000 MPa | 200,000 MPa | 0.06 | Normal | | 335 MPa | 375 MPa | 0.065 | Normal | | | | 0.05 | Normal | | | | 0.02 | Normal | | 25 kN/m3 | 26 kN/m3 | 0.06 | Normal | | 78.5 kN/m3 | 80.1 kN/m3 | 0.05 | Normal | | 23 kN/m3 | 23 kN/m3 | 0.04 | Normal | | 10.5 kN | 9.03 kN | 0.08 | Extreme value type Ι | | 250 kN | 215 kN | 0.08 | Extreme value type Ι | | 6.9 kg/m3 | 6.9 kg/m3 | 0.1 | Normal | | 1.5 kg/m3 | 1.5 kg/m3 | 0.15 | Normal | | 22.5 mm2/year | 22.5 mm2/year | 0.45 | Lognormal |
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COV is the coefficient of variation. Truncated distributions with nonnegative outcomes are adopted in the simulation process.
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