STRUCTURAL SAFETY EVALUATION AND REMAINING LIFE PREDICTION OF CONCRETE BRIDGES BASED ON STATISTICAL ANALYSIS

This paper describes a practical evaluation method of structural safety and its change in service of concrete bridges based on only brief material tests, using statistical factor analysis of structural safety for actual bridges evaluated by non-destructive loading tests and material tests. Furthermore, the remaining life based on current maintenance criteria for repair, rehabilitation and renewal, is discussed by linking predicted results by presented method and the diagnosis by the bridge engineers through visual inspection. Finally, application example to an actual bridge is presented so as to demonstrate the suitability of the presented method.