| Project/Area Number |
26889059
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Building structures/Materials
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| Research Institution | Fukuyama University |
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Principal Investigator |
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| Project Period (FY) |
2014-08-29 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 履歴型ダンパー / 制震効果 / 吸収エネルギー / 曲げ降伏型 / 累積塑性変形倍率 / H形鋼 / ステンレス鋼 / 鉄筋コンクリート造 / 鉄筋コンクリート / Ｈ形鋼 / 等価粘性減衰定数 |
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| Outline of Final Research Achievements |
The flexural yielding dampers using H-section member made by structural rolled steel SS400 were tested under anti-symmetric moment distribution. The objective is to grasp their elastic-plastic structural behaviors and the relationships between drift-angles and the energy absorption. The parameters were span lengths, strong and weak axes, and unique configuration with both ends. To compare steel material, the H-section dampers made by stainless steel SUS304 were also tested.
The hysteresis loops of the H-section dampers are stable in both strong and weak axes. The energy absorption of H-section dampers is found to be related to the drift angles. The strong and weak axis E-R transitions had the constant slope respectively in the test results. There is no difference between SS400 and SUS304 in the energy absorption and damage. The H-section member with the unique machining at both ends had large cumulative plastic ductility ratio. It would be expected to have a large damping effect.
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