| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
For the patch repair method of deteriorated steel members using high-strength bolts without enough slip coefficient for to patch plates, I focus on the patch repair method using high-strength bolted connection with bolt holes filled up the epoxy resin. It was clarified that the bolted joint with bolt holes filled up the epoxy resin showed the higher slipping strength even in the low slip coefficient condition. Additionally, the equation of axial force in thickness-reduced section repaired by patch plates was given, and the effect of patch repair method for thickness-reduced plate with bolt holes filled by epoxy resin was clarified by the tensile tests. Furthermore, the behavior of high-strength bolted connection filled with epoxy resin in bolt hole under the temperature of 50°C and 60°C was clarified by the tensile test.
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