| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Outline of Final Research Achievements |
This study has 3 main contents ((1) flexural buckling test of corroded steel column (2) ultrasonic thickness measurement (3) finite element analyses of an aging truss bridge) for obtaining the useful knowledge of bridge maintenance, which includes thickness inspection and repair, for the actual corroded bridge members. Main results of this study are as follows;
(1) From the flexural buckling test and UT measurement, a simple thickness estimation formula was proposed for modifying measurement results, which will be overestimated than actual thickness due to surface roughness, to safe side.
(2) From the analytical results of whole bridge model, the load bearing capacity of an actual aging truss bridge was estimated based on the concept of scale factor of B live load.
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