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SHEAR REINFORCEMENT EFFECT FOR RC BEAMS BY POST SHEAR REINFORCING METHODS WITH PLATE AND HEAD ANCHORED SHEAR REINFORCING BA RS
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- KUMAGAI Yuji
- 東京工業大学 環境・社会理工学院 土木・環境工学系
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- NAKAMURA Takuro
- 東京工業大学 環境・社会理工学院 土木・環境工学系
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- SAKAMOTO Jun
- 大成建設(株) 技術センター土木技術研究所
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- TAKEDA Hitoshi
- 大成建設(株) 技術センター土木技術研究所
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- NIWA Junichiro
- 東京工業大学 環境・社会理工学院 土木・環境工学系
Bibliographic Information
- Other Title
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- あと施工プレート定着型せん断補強鉄筋によるRCはりのせん断補強効果
Description
This study aims to clarify the shear reinforcement effect for RC beams by post shear reinforcing methods with plate and head anchored shear reinforcing bars (PHB). Three specific test series with total of seven RC slender beams were carried out under the four point bending test to investigate the influence of spacing, diameter and embedded length of PHB without the normal construction methods. All specimens had a rectangular cross section with a/d ratio of 3.2.<br> The results showed that the shear capacity of RC beams was affected by the spacing of PHB, whether they are crossed by shear cracks or not. However the effect was smaller than that by using effective coefficient βaw. This effect was reduced by enhancing the spacing of PHB, however the reduction ratio can be improved with a larger shear reinforcement ratio. Furthermore, the shear reinforcement effect can be promoted by shorter embedment length.<br> Finally, this paper proposed the equations to predict the shear capacity of RC beams with PHB by considering the spacing and the number of PHB. The shear capacity calculated from the proposed equation showed a reasonable accuracy to estimate the experimental shear capacity.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. E2 (Materials and Concrete Structures)
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Journal of Japan Society of Civil Engineers, Ser. E2 (Materials and Concrete Structures) 73 (1), 118-132, 2017
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390282680332318976
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- NII Article ID
- 130005464644
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- ISSN
- 21856567
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- Text Lang
- ja
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- Article Type
- journal article
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed