耐力壁に設けた後施工開口の炭素繊維シートを用いた開口補強に関する実験的研究

摘要

耐力壁の開口補強方法をパラメータに6体の静的加力実験を行い，補強効果について検討した結果，以下のような知見が得られた。（1）炭素繊維シート補強は耐力壁の曲げ破壊に対して補強効果を発揮し、RC規準による鉄筋補強と同程度の耐力向上が見られ、シート補強は耐力壁の開口補強として有効である。%Some of old apartment buildings do not meet the current requirements such as space and story height. In order to change the plan to meet the requirements. two duellings are combined to one by making openings the wall between dwellings. The wall with the new opening needs strengthened to transfer the stress around the opening according to the AIJ Standard. It is. however, very difficult to install strengthening reinforcement into existing walls. Therefore, a new strengthening technique with carbon fiber sheet is proposed in this paper and the validity of the technique is confirmed by a series of experimental tests.