Shunsuke KAWANA
Shear Resisting Mechanism of Continuous Fiber Rope Reinforced Concrete Beams
Supervisor¡§Takumi SHIMOMURA
At present, a lot of reinforcement methods have been proposed concrete structures. For example, the steel plate jacketing, the concrete jacketing, and the continuous fiber seat Jacketing. These reinforcement methods have both merits and demerits.
This study focuses on a method of shear reinforcement for reinforced concrete beams using a continuous fiber material made in the form of rope. Continuous Fiber Rope (CF Rope) can be easily handled by hand due to its lightweight and high flexibility. Therefore it can be used without epoxy resin.
Past research verified that CF Rope can be used as shear reinforcement embedded in concrete beams and¡¡effective to toughness of an existing reinforced concrete column. The CF Rope reinforcement method has not established the design method and the check method. It is necessary to clarify the reinforcement mechanism of the CF Rope for that.
This study did loading test to reinforced concrete beam with CF Rope and concrete jacket. From the experiment, it was clarified not to be able to increase shear strength. However, it was clarified to improve the transformation performance.
We discussed why shear strength did not increase. The reason was verified from the rope strain distribution and adhesion properties of the CF Rope and concrete. Moreover, it was clarified to a toughness prediction of the CF Rope reinforcement correlation between continuous fiber sheet reinforced methods
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