| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Outline of Final Research Achievements |
In this study, at first, to make clear the influence of loading rate dependency on the residual performance of corroded RC member, corroded RC members were made by using electrolytic corrosion method, and both of static loading test and repeated impact test. As a result, through repeated impact tests, the number of impacts to failure of corroded RC beams were less than half of healthy RC beams. In addition, it is found that fracture pattern is completely different due to some axial cracks. Next, to make clear a triadic relationship between (a) real damage state, (b) output value of NDT and (c) residual performance of corroded RC member, hammering tests were also conducted. As a result, it is found that to make a correlation between (a), (b) and (c) is hard because the output value such as sound pressure and frequency is not sufficient to estimate the corrosion level. In addition, FE modeling for corroded RC member was developed in consideration of degradation of adhesion.
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