| Project/Area Number |
22760345
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Nagoya Institute of Technology |
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Principal Investigator |
NAGATA Kazutoshi 名古屋工業大学, 大学院・工学研究科, 准教授 (40301238)
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | 耐震構造 / 鋼製部材 / 腐食 / 断面損傷 / 水平2方向挙動 / ねじり / 耐荷力 |
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| Research Abstract |
Many steel structures have been faced the problem of deteriorationin Japan. Severe damages will be caused in such deteriorated structures subjected to hugeearthquake. It is necessary to secure safety of such structures to earthquakes. However, 2dimensional horizontal behavior of seismic response of structures with damages bycorrosion has been hardly researched. Therefore, in this study experiments intended forrectangular steel bridge piers with damages by corrosion in the corners were conducted inorder to evaluate two-dimensional behavior. It was found that local buckling occurred atnot only the stiffened plates but also the corners in the piers which have corrosion at thecorners. Therefore, compared with a pier without corrosion, deterioration of strength of thepier with corrosions was remarkable. As a conclusion, suitable maintenance is necessary sothat structures may not receive severe damage in huge earthquake.
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