2012 Fiscal Year Final Research Report
Improvement of remaining strength estimation method for corroded steel plates intended to strength performance recovery
| Project/Area Number |
22760351
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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 | Tokuyama College of Technology |
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Principal Investigator |
KAITA Tatsumasa 徳山工業高等専門学校, 土木建築工学科, 助教 (10390519)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 鋼構造 |
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| Research Abstract |
Main results of this study are as follows; (1) A remaining strength estimation method of severely corroded tensile plates was tried to modify with higher reliability by carrying out the tensile test for wide-width specimens. (2) A useful thickness estimation formula was proposed for the thickness measurement by using the portable ultrasonic thickness gauge. (3) Some useful knowledge for strength recovery of aged bridge were obtained by material property tests and the chemical component analyses about previous “Amarube Bridge”. (4) The mechanical influences for load-eccentricity due to corrosion were clarified by the buckling test and FEM analyses for severe corroded plates
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