Enhancement of Flexural Performances through FRP Hybridization with High Modulus Type of Carbon Fibers
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- Wu Zhishen
- 茨城大学, 工学部都市システム工学科
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- Sakamoto Kouji
- 日鉄防蝕株式斜七エンジニアリング事業部
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- Iwashita Kentaro
- 茨城大学SVBL, 大学院理工学研究科
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- Kobayashi Akira
- 工修日鉄コンポジット株式会社
Bibliographic Information
- Other Title
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- 高弾性炭素繊維シートのハイブリッド化によるRC梁の曲げ性能向上に関する研究
Abstract
The purpose of this study is to investigate the flexural strengthening effects of RC beams with hybrid FRP sheets consisting of high modulus type of continuous carbon fibers. Based on a preliminary hybrid design by following rules of mixture for the hybridization of high strength and modulus types of carbon fibers, the hybrid fiber sheets are used to strengthen RC beams. Throughout a series of investigations on beam specimens under three point bending, it is clarified that the hybrid fiber sheets consisting of high modulus type of carbon fibers as an externally bonded reinforcement can be used to enhance effectively. The service ability performances of structures such as cracking load and other resistance behavior, stiffness and steel yielding load etc. Moreover, through a rational design of hybrid fiber sheets, the controlling of stress drops due to the gradual ruptures of fibers and the sufficient ductility by avoiding premature debonding can be realized practically. Finally, some indices for evaluating the strengthening effects with hybrid fiber sheets and the optimum mixture are also suggested and discussed in the paper.
Journal
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- Journal of applied mechanics
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Journal of applied mechanics 8 987-997, 2005
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390282680184943104
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- NII Article ID
- 130004258368
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- ISSN
- 1884832X
- 13459139
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed