Dynamic Analysis of OCS-poles on Shinkansen Viaduct and their monitoring
| Project/Area Number |
26820182
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MIZUTANI Tsukasa 東京大学, 工学(系)研究科(研究院), 助教 (10636632)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 電車線柱 / 新幹線高架橋 / 地震 / 損傷 / 動的非線形解析 / モニタリング / 鉄道高架橋 / 耐震性能 / TMD / 振動制御 / 鉄道ラーメン高架橋 / 付属物 / 地震応答解析 / 耐震性能評価 |
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| Outline of Final Research Achievements |
In the Great East Japan Earthquake, Shinkansen operation system had stopped for long time, be-cause a large number of OCS poles of pre-stressed concrete on Shinkansen viaducts had fell down even though the viaducts were not severely damaged. Thus, the seismic performance of the OCS-poles should be clarified and improved shortly by realistic techniques. In this study, firstly building a three-dimensional coupled frame model of four-block Shinkansen viaducts including OCS-poles and catenary cables, seismic response analysis was conducted and the dynamic response properties of the viaducuts and OCS-poles have clarified. Secondly, based on those results, a vibration control technique using TMD to ease damage of OCS-poles was proposed. Finally, conducting some simulations and referring to various material on TMD, the advantage of the proposed technique to the conventional ones improving seismic performance of OCS-poles in terms of function, cost, workability and maintenance was shown.
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Report
(3 results)
Research Products
(36 results)
