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BENDING STIFFNESS IMPROVEMENT FOR THE EXISTING MEMBERS USING LAMINATED THIN FRP SLIT PIPE BY UNBONDED RESTRAINING MECHANISM
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- IZAWA Madoka
- Dept. of Architecture and Civil Engineering, Toyohashi University of Technology
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- YAMAMOTO Rino
- Dept. of Architecture and Civil Engineering, Toyohashi University of Technology
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- HIGUCHI Shogo
- Dept. of Architecture and Civil Engineering, Toyohashi University of Technology
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- MATSUMOTO Yukihiro
- IRES<sup>2</sup>, Toyohashi University of Technology
Bibliographic Information
- Other Title
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- 非接着補剛と薄肉スリット入りFRP積層材による既存部材の曲げ剛性向上法
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Description
<p>FRP materials that have superior material properties, e.g., high weight strength ratio and corrosion resistance, have been widely applied to industrial, aerospace, and construction use in recent. In the construction field, the repair and strengthening method using FRPs has been strongly researched and developed. Almost all methods adopt the adhesive bonding method to apply FRPs to the existing structures. This paper shows a new strengthening method and mechanism using thin FRP restrainers. We propose the use of slitted thin FRP pipes for strengthening. The FRP pipes are wrapped with rotational lamination around the existing pipe member to increase the bending stiffness and buckling load. Because of the high elastic deformation performance of FRP, the plastic band-like application method can be used for the wrapping. As a result, the proposed strengthening method is demonstrated successfully, and it is clearly shown that the bending stiffness and buckling load are increased by the present method.</p>
Journal
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- Journal of Structural Engineering B
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Journal of Structural Engineering B 70B (0), 111-120, 2024
Architectural Institute of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390862699741974016
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- ISSN
- 24366285
- 09108033
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- OpenAIRE
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- Abstract License Flag
- Allowed