Development of high-performance BRRP dampers for bridge structures
| Project/Area Number |
15H04035
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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 Industrial Science Research Institute |
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Principal Investigator |
Usami Tsutomu 公益財団法人名古屋産業科学研究所, 研究部, 上席研究員 (50021796)
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| Co-Investigator(Kenkyū-buntansha) |
葛 漢彬 名城大学, 理工学部, 教授 (90262873)
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| Co-Investigator(Renkei-kenkyūsha) |
WATANABE KOUICHI 名城大学, 理工学部, 准教授 (90387762)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2017: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2015: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
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| Keywords | 制震ダンパー / 波形鋼板 / 鋼桁橋 / 性能実験 / 低サイクル疲労 / 数値解析 / 低サイクル疲労実験 / 機能保持性能 / 大地震 / 橋梁 / 桁橋 / 鋼橋 / 余剰耐震性 |
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| Outline of Final Research Achievements |
New seismic dampers termed Buckling-Restrained Rippled Plate (BRRP) dampers have been developed. BRRPs are intended to be used as stoppers, and when they are installed at the edges of girder-type bridges, they will act as stiff elastic bearings in small to moderate earthquakes (Level 1 earthquakes) and as energy dissipating dampers in large earthquakes (Level 2 earthquakes). The target performances of BRRPs are such that they can withstand three consecutively acting Level 2 earthquakes as well as earthquakes exceeding Level 2 earthquakes (say, 1.5 times larger than a Level 2 earthquake). The inelastic behavior of BRRPs was investigated using cyclic and pseudo-dynamic loading tests, in addition to numerical analyses, to acquire fundamental knowledge on their performances. It has been found that adequately designed BR
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Report
(4 results)
Research Products
(10 results)
