Study on Seismic Strengthening of Steel Structure Framework withRemovable Knee Brace Reinforcement
| Project/Area Number |
22560575
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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 |
Building structures/materials
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| Research Institution | Kanto Gakuin University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
HARADA Yukihiro 千葉大学, 工学研究科, 教授 (10272791)
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| Co-Investigator(Renkei-kenkyūsha) |
MORITA Koji 東京電機大学, 特任教授 (20057227)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 鋼構造 / 柱・梁接合部 / 半剛接合部 / 方杖補強 / 耐震設計 / 半剛接合 / 有限要素解析 / 耐震補強 |
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| Research Abstract |
An experiment was performed on a subassemblage specimen of an interior column joint with knee brace reinforcement, and the experimental results verified the increase in strength and stiffness of the beam-to-column joint due to the knee brace reinforcement. While knee braces are effective for stiffening and strengthening the overall frameworks, the existing beams or columns are assumed to still plastify during strong earthquakes because of the high strength of the knee braces. A better retrofit is possible if the seismic performance could be upgraded without assuming the yielding of beams or columns. A new type of knee brace member with a built-in comb-shaped damper is proposed and discussed in this study.
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Report
(4 results)
Research Products
(8 results)
