2003 Fiscal Year Final Research Report Summary
A Study of Pseudo Dynamic Tests and Seismic Design methods for Steel Bridge Piers subjected to severe earthquake with multi directions
| Project/Area Number |
13555130
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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 | 展開研究 |
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| Research Field |
構造工学・地震工学
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| Research Institution | Nagoya University |
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Principal Investigator |
USAMI Tsutomu Nagoya Univ., Grad.School of Eng., Professor, 大学院・工学研究科, 教授 (50021796)
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| Co-Investigator(Kenkyū-buntansha) |
KASAI Akira Nagoya Univ., Grad.School of Eng., Research Assoc., 大学院・工学研究科, 助手 (20303670)
GE Hanbin Nagoya Univ., Grad.School of Eng., Assoc.Professor, 大学院・工学研究科, 助教授 (90262873)
ITOH Yoshito Nagoya Univ., Grad.School of Eng., Professor, 大学院・工学研究科, 教授 (30111826)
SUZUKI Moriaki Aichi Institute of Technology, Grad.School of Eng., Assoc.Professor, 工学部, 助教授 (90273276)
AOKI Tetsuhiko Aichi Institute of Technology, Grad.School of Eng., Professor, 工学部, 教授 (70064946)
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| Project Period (FY) |
2001 – 2003
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| Keywords | Steel Bridsre Pier / Local Buckling / Torsional Deformation / Seismic Performance / Elasto-plastic analysis / Cyclic Loading Test / Bi-directional loading / Ductility |
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| Research Abstract |
This study is aimed at investigating the seismic performance of box-section steel bridge piers under bi-directional horizontal loading. For this purpose, both experiment and elasto-plastic large displacement FEM analysis are carried out. To examine the effects of different directions, loading path configurations and bi-directional ratios, which are three features of a load patterns, a variety of loading patterns are adopted accordingly. By comparing the experimental results with those from analyses, the FEM modeling method is verified. A parametrical study is carried out on various piers with certain loading patterns, and a capacity evaluation method for steel piers subjected to bi-directional horizontal loads is proposed. Finally, the influence of various structural parameters is clarified by evaluation using the propose method.
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