鉄筋コンクリート造実大7層建物実験における耐震壁の弾塑性挙動 : 日米共同耐震実験研究 その6

抄録

Nonlinear behavior of the shear wall of the full-scale reinforced concrete seven-story structure was examined based on the data obtained from the pseudo-dynamic tests. The examination has revealed the followings. 1) Curvature ductility of the wall at the base agreed with displacement ductility of the building. 2) Hinge region of the wall, which initiated at the base, expanded throughout the first story when the displacement angle of the building reached the peak value of 1/64. 3) While the wall yielded in a flexural mode, shear deformation of the wall at the first story reached as much as 40 % of the horizontal deformation. 4) The fiber model analysis applied to the wall critical section made it clear that as much as 80 % of the energy absorbed by the wall was dissipated by the reinforcement. Such large contribution of the reinforcement to the energy absorption and dissipation mechanism of the wall is believed to be a reason of favorable behavior of the wall and, therefore, the structure.