[2102] RC造耐震壁のあと施工開口に対する鋼管補強方法の適用と実験的検証
キーワード：RC、shear wall、post-installed opening、strengthening technique、seismic performance
To limit reductions in seismic performance caused by post-installed openings in reinforced concrete shear walls, conventional strengthening techniques are used to supply additional reinforcing bars around openings. But in cases of nuclear power plants with thick walls, a large amount of concrete is removed which is costly. To compare conventional techniques with less invasive steel pipe reinforcement methods, four specimens with different reinforcement were tested until failure. Compared with the conventional method, walls with steel pipe reinforcement increased stiffness, strength, and ductility.