CFRPストランドシートによる腐食した鉄筋を有するRCはりの補修補強効果に関する基礎的検討

抄録

This study investigated repair/strengthening effect for RC beams with corroded steel bars. The significance of this study was that a new idea of repair/strengthening method using CFRP strand sheets was proposed for deteriorated RC beams without any measures such as patch with mortar repair and replacement of steel bars. As a result of this study, CFRP strand sheets embedded in fiber reinforced mortar with high-strength and high-ductility, UHP-SHCC, effectively enhanced the flexural performance as well as those bonded with epoxy resin. No delamination or sheet pullout were observed until failure as well. Moreover, the results of sectional analysis quantitatively confirmed the effectiveness of the proposed method.