A New Approach for Seismic Design of the Asymmetric Shear Wall Concrete Buildings Located Within Near-Fault Ground Motions

Near-fault ground motions impose large demands on structures compared to far-fault ground motions. Recent studies have pointed out that the stiffness and strength of the ductile RC structural walls are dependent parameters. Based on the proposed approach, the strength distributed among the resisting elements. Minimum torsional response in one-storey and multistorey under near-fault and far-fault ground motions are determined. A new displacement-base design method by considering criteria such as characteristics of the dynamic torsional response, the ductility of the RC walls, the system ductility and the story-drift at the softer edge of the building under the design earthquake are explained. With respect to the displacement profile, post yield displacement and curvature ductility factor of elements are defined. Therefore, confinement of concrete in boundary would be controlled.

Keywords:

Design criteria , asymmetric building , near-fault , ductility , storey drift