Table 2: Statistics of random design variables (I).

Design variableNominal valueMean valueStandard deviationProbability distribution

(MPa)41.3446.161.94Normal
(MPa)a2,79085.7Normal
(mm)b1,900 6.0Normal
(mm)c1,250 6.35Normal
(mm)c1,200 12.70Normal

ISO 527-3 (1997)[12], Oh et al. (1993) [13], cross-sectional dimension of the target bridge.