Shear wall is the Reinforced concrete section which having cement sand aggregate and steel as per the design by the designer. Normally i have found 16 mm dai bar used in the residential building but commercial building have different designs.
Specially Lift portion of building have needed because of heavyweights of lift or as per design load minimum thickness of shear wall is 250mm and steel as per designer but minimum thickness of share wall steel diameter should not more than 16mm.
Column and shear connection in this figure
