1997 Fiscal Year Final Research Report Summary
Analytical Study on Cyclic Behavior of Steel Bridge Pier with Two-Surface Model
| Project/Area Number |
08650547
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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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 |
MIZUNO Eiji Nagoya University, The faculty of Engineering, Assoc.Professor, 工学研究科, 助教授 (80144129)
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| Co-Investigator(Kenkyū-buntansha) |
GE Han Bin Nagoya University, The faculty of Engineering, Research Assistant, 工学研究科, 助手 (90262873)
ITOH Yoshito Nagoya University, Center for Integrated Research in Science and Engineering, Pr, 理工科学総合研究センター, 教授 (30111826)
USAMI Tsutomu Nagoya University, The faculty of Engineering, Professor, 工学研究科, 教授 (50021796)
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| Project Period (FY) |
1996 – 1997
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| Keywords | Two-surface Model / Bridge Pier / Local Buckling / M-P-phi Curve / Finite Element Method |
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| Research Abstract |
The present research consists of following two topics.
The first research topic deals with cyclic deformation behavior of steel bridge piers due to the local duckling. Firstly, a finite element program has been developed to predict the cyclic behavior of steel beam-columns, using the moment-thrust-curvature curves (the M-P-phi curves) of locally buckled short-columns. Further, the monotonic and cyclic deformation of steel bridge piers has been analyzed with the developed program. Comparisons of the numerical results with the present approach and the finite element program ABAQUS have shown a relatively good agreement to each other.
In general, it takes much time to analyze the local buckling behavior of steel tube bridge piers using the finite element method with the shell element. Therefore, the second research topic aims at the development of the plasticity model which can take into account the local buckling behavior in resultant force space. The beam element analysis is performed for the steel bridge pier with the developed plasticity model and the numerical results are compared with those of the other shell element analysis by ABAQUS.
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