Research Article

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

Table 2

Values of the major parameters.

VariableValueVariable description

34,500 MPaConcrete elastic modulus
32.4 MPaConcrete compressive strength
200,000 MPaReinforcing steel elastic modulus
335 MPaReinforcing steel tensile strength
Concrete cover thickness
Reinforcing steel diameter
25 kN/m3In situ concrete unit weight
78.5 kN/m3Reinforcing steel unit weight
23 kN/m3Deck paving unit weight
10.5 kNUniform live load
250 kNConcentrated live load
6.9 kg/m3Surface chloride concentration
1.5 kg/m3Critical chloride concentration
22.5 mm2/yearDiffusion coefficient

is the cover thickness of some concrete edge in the section.
is the reinforcing steel diameter of some concrete edge in the section.