2010 Fiscal Year Final Research Report
Ultimate behavior and design of thin-walled steel bridge piers under multi-directional seismic excitations
| Project/Area Number |
20360201
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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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 |
GOTO Yoshiaki Nagoya Institute of Technology, 工学研究科, 教授 (90144188)
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| Co-Investigator(Kenkyū-buntansha) |
OBATA Makoto 名古屋工業大学, 工学研究科, 教授 (30194624)
NAGATA Kazutoshi 名古屋工業大学, 工学研究科, 准教授 (40301238)
EBISAWA Takemasa 名古屋工業大学, 工学研究科, 助教 (90332709)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 耐震構造 / 耐震設計法 / 動的応答解析 / 擬似動的実験 / 振動台実験 / 終局挙動 / 鋼製橋脚 |
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| Research Abstract |
An accurate pseudo-dynamic experiment was carried out to investigate the ultimate behavior of thin-walled steel bridge piers subjected to multi-directional seismic excitations as well as to confirm the accuracy of a proposed onlinear dynamic FEM shell analysis. Then, an ultimate interaction curve expressed in terms of restoring force and moment components was derived to identify the ultimate state of piers. Finally, an extensive dynamic analysis under various bi-directional seismic excitations and 3D shaking table test were carried out to confirm the accuracy of the proposed ultimate interaction curve.
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