Research Article

A Novel Approach to Evaluate the Time-Variant System Reliability of Deteriorating Concrete Bridges

Table 4

Statistical parameters of random variables.

VariableNominalMeanCOVDistribution type

34,500 MPa34,500 MPa0.10Normal
32.4 MPa40.5 MPa0.12Normal
200,000 MPa200,000 MPa0.06Normal
335 MPa375 MPa0.065Normal
0.05Normal
0.02Normal
25 kN/m326 kN/m30.06Normal
78.5 kN/m380.1 kN/m30.05Normal
23 kN/m323 kN/m30.04Normal
10.5 kN9.03 kN0.08Extreme value type Ι
250 kN215 kN0.08Extreme value type Ι
6.9 kg/m36.9 kg/m30.1Normal
1.5 kg/m31.5 kg/m30.15Normal
22.5 mm2/year22.5 mm2/year0.45Lognormal

COV is the coefficient of variation.
Truncated distributions with nonnegative outcomes are adopted in the simulation process.