Estimation of vibration modes of a bridge using the vehicle responses passing over the bridge
| Project/Area Number |
22686043
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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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 | Kyoto University |
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Principal Investigator |
OSHIMA Yoshinobu 京都大学, 工学(系)研究科(研究院), 准教授 (10362451)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2011: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2010: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
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| Keywords | 維持管理工学 / 橋梁振動 / 損傷同定 / 車両応答 / 橋梁 / 損傷検知 / 統計的手法 |
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| Research Abstract |
In this study, the theory of estimating a bridge state by analyzing the responses of passing vehicles over the bridge has been proposed and was verified through experiments and numerical simulations. First, the algorithm to estimate mode shapes of a bridge was built and verified to be valid. With regard to natural frequency, considering the low sensitiveness of eigenfrequency to damage, the enhanced method to estimate the frequency by multiple measurements has been proposed and verified through the experiment using mode bridges. Finally, it was found that our theories are valid in some range.
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Report
(5 results)
Research Products
(36 results)
