Research of Seismic Behavior of Mid-rise RC Shear Wall With Single Row of Steel Bars and Inclined Reinforcement

In order to study the effect of inclined reinforcement arrangement on seismic behavior of mid-rise RC shear wall with single row of steel bars, the low cyclic loading tests for four mid-rise RC shear walls with single row of steel bars and inclined reinforcement and one without inclined reinforcement were carried out respectively. The failure mode, hysteretic behavior, load-carrying capacity, ductility, rigidity degeneration and energy dissipation capacity of five test specimens were contrastively analyzed. The influences of intersection angle between inclined reinforcement and horizontal direction as well as the proportion of web reinforcement and inclined reinforcement on the seismic performance of mid-rise RC shear walls were also revealed. The test results indicate that different reinforcement arrangements have little influence on failure mode, ultimate load-carrying capacity and ductility for the mid-rise RC shear wall with single row of steel bars, but the inclined reinforcement can reduce shear slipping of the wall to a certain extent, and the inclined reinforcement positioned as fan-shape is more effective. The mid-rise RC shear walls with single row of steel bars and inclined reinforcement show slower stiffness attenuation and better energy dissipation capacity than that of the shear wall without inclined reinforcement.