Condition rating methodology on RC bridges with chloride induced deterioration

摘要

To evaluate performance simply by using grading technique (i.e. using visual inspection result) and judging need of the detailed inspection play a key role in executing effective maintenance by the limited budget. Therefore, authors adopted the condition rating as one of the simple performance evaluation techniques, and improved a little to become more reliable. And authors tried to apply the condition rating to some cases of RC superstructure damaged by chloride induced deterioration. Furthermore, the trial calculation results of the condition rating were compared with the inspection results of actual structure which was associated with the loading test result concerning mass loss of RC test beam. Consequently, it turned out that the parameters of simple performance evaluation in the condition rating could be evaluated as value including the parameter about the uncertainty of inspection result.