EVALUATION FOR FLEXURAL CAPACITY OF THIN REINFORCED CONCRETE MEMBERS
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- UJI Kimitaka
- 首都大学東京大学院 都市環境科学研究科
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- OHNO Kentaro
- 首都大学東京大学院 都市環境科学研究科
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- NAKASHIMA Ayano
- 首都大学東京大学院 都市環境科学研究科
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- KOKUBU Katsuro
- 首都大学東京 産学公連携センター
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- SHIMIZU Kazuhisa
- コンクリート製品JIS協議会
Bibliographic Information
- Other Title
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- 薄肉鉄筋コンクリート部材の終局曲げ耐力評価手法の提案
Abstract
Since most of the pre-cast reinforced concrete (RC) products have thin thickness, failure mechanisms of thin RC members is thought to be different from ordinary members, which have over 200 mm thickness. Therefore, evaluation method of flexural capacity for thin RC members is in great demand. In this study, fracture processes of thin RC beams, which have 40, 70 and 100 mm thickness are studied experimentally under the four point bendin g tests. In addition, numerical ev aluation method for flexural capacity of thin RC members is developed and discussed. In the numerical method, tension softening of concrete is considered for each hight such as 40, 50 and 70 mm by fracture energy tests of concrete. As a result, it is found that reinforcement bars in thin RC beam don't perform mechanically as a ordinary RC beams. As for tension softening, 1/3 model of tension softening is adapted for RC beams which have under 70 mm thickness, 1/4 model of tension softening is applied to RC beam which has 100 mm thickness. Consequently, it is realized that the numerical method for flexural capacity of thin RC beams has good performance by taking into account tension softening of concrete.
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) 67 (3), 361-373, 2011
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390001205356936832
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- NII Article ID
- 130004559824
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- ISSN
- 21856567
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed