Abstract: A building facade system which comprises a frame to support a building facade panel, a unified vertical shear blade anchor, a vertical mullion and an angled anchor member. The unified vertical shear blade anchor has a body portion and a flange extending horizontally therefrom. The flange has top and bottom surfaces with the bottom surface having serrations. The vertical mullion is secured by a shear connection to the vertical shear blade anchor. The shear connection between the vertical mullion and the vertical shear blade anchor is formed by a fastener which extends through side portions of the body portion and vertical mullion. The angle member has first and second flanges each having proximal ends joined together and opposing terminal ends. The second flange has a top surface with upwardly projecting serrations. The upwardly projecting serrations are configured for engagement with the downwardly projecting serrations of the vertical shear blade anchor.

Abstract: A building facade system which comprises a frame to support a building facade panel, a unified vertical shear blade anchor, a vertical mullion and an angled anchor member. The unified vertical shear blade anchor has a body portion and a flange extending horizontally therefrom. The flange has top and bottom surfaces with the bottom surface having serrations. The vertical mullion is secured by a shear connection to the vertical shear blade anchor. The shear connection between the vertical mullion and the vertical shear blade anchor is formed by a fastener which extends through side portions of the body portion and vertical mullion. The angle member has first and second flanges each having proximal ends joined together and opposing terminal ends. The second flange has a top surface with upwardly projecting serrations. The upwardly projecting serrations are configured for engagement with the downwardly projecting serrations of the vertical shear blade anchor.