Abstract: A flange connection system for a concrete structure comprising a plurality of adjacent precast concrete members including a platform having a center panel and a first and second flange extending outward from the center panel in opposing directions. The system includes a first and second bent plate each having a horizontal member attached to the bottom surface of the adjacent flanges and a vertical member perpendicular to the horizontal member. The system includes a spacer plate extending in a vertical direction from about a lower edge of the first vertical member to below the first horizontal member and secured between the vertical members of the first and second bent plate with a plurality of fasteners. The first and second vertical member may flex at an upper portion allowing adjacent flange ends to move relative to one another.

Abstract: A metal flange connection for concrete flanges comprising end members exposed at facing ends of a pair of adjacent, generally horizontal concrete flanges and a connecting member between the end members. Each of the end members has a surface along the end of the concrete flange and the connecting member has a first portion extending between the end members in a first generally horizontal plane and a second portion extending between the members in a second generally horizontal plane above or below the first generally horizontal plane. The first and second portions are connected by a third portion extending between the members and the first and second planes. The connecting member portions provide resistance to a force tending to translate the concrete flanges in a vertical direction with respect to each other.