1998 Fiscal Year Final Research Report Summary
Study on the Development of the Bridge Restrainer System with Rubber Cushion under Earghquake Shock
| Project/Area Number |
08555116
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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 | KYUSHU UNIVERSITY |
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Principal Investigator |
HIKOSAKA Hiroshi Dept.of Civil Engrg, Kyushu University, Professor, 工学研究科, 教授 (10037864)
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| Co-Investigator(Kenkyū-buntansha) |
IKOMA Nobuyasu Shibata Co., Ltd, 研究員
ISHIKAWA Nobutaka Dept.of Civil Engrg, National Defense Academy, Professor, 教授
SONODA Yoshimi Dept.of Civil Engrg, Kyushu University, Associate Professor, 工学研究科, 助教授 (40304737)
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| Project Period (FY) |
1996 – 1998
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| Keywords | Shock absorber device / Impact loading test / Fiber reinforced rubber-rolled pin / Bridge restrainer plate system |
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| Research Abstract |
This research proposes a new bridge restrainer system with fiber reinforced rubber-rolled pin and examines the effect of it for the shock absorber device. First, static and impact loading tests were performed in order to examine the mitigating effect in the elastic range. Second high speed loading test was performed to compare the energy absorbing capacity of rubber-rolled pin system with steel pin system. Finally, numerical simulations of static behavior and dynamic response of rubber-rolled pin were carried out in the elastic range. The following results were obtained from this study :
1) Rubber-rolled pin could decrease about 1/4 the responding strain of restrainer plate compared with the case of steel pin system.
2) The ultimate limit displacement and energy absorbing capacity of rubber-roiled pin were about 20% larger than those of steel pin system.
3) A simple hyper-elastic model is applicable to the fiber reinforced rubber and it can simulate well not only static behavior but also dynamic response in the weight dropping test.
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