Issue 37

Z. Hongping et alii, Frattura ed Integrità Strutturale, 37 (2016) 352-359; DOI: 10.3221/IGF-ESIS.37.46 357 ln 1.2826 Q Q Q T T      (16) Q Q T    (17) Where T Q stands for the maximum random variable of live load in service period [0, T]. According to the existing conditions, the average value and standard error of constant load SG  and SG  were 130.1 kN · m and 9.11 kN · m respectively. The average value of the maximum live load could be calculated using formula (18). 1.17 2.63 ln 1.2826 S QT T    (18) Standard error S Q T  was 1.17 kN · m. According to the above conditions, we could obtain the changes of reliability index of corroded bending element of reinforced concrete along with service time of structure by applying time comprehensive analysis method. Results are shown in Fig. 4. Figure 2. Time varying curve of average value of resistance. Figure 3. T ime varying curve of variation coefficient of resistance.