Abstract: A beam member for use in construction, particularly as a waler in concrete form assemblies, and a method of producing the same. The beam member is flexible to a preselected curvilinear shape and adapted to be held in said preselected curvilinear shape, and includes a flexible face and a plurality of flange members secured to and upstanding from the flexible face, the flange members being arranged side-to-side in two rows, one each of which rows is adjacent a corresponding one of opposing sides of the flexible face. Each of the flanges has a terminal end section extended parallel to the flexible face and is separated from an adjacent flange by a distance which increases from the attachment of the flange at the flexible face to said terminal end section whereby the beam member is laterally flexibly movable to conform to a preselected curvilinear shape. A strap is secured to the terminal end section of the flanges to maintain the preselected curvilinear shape of the beam member.

Abstract: A pour window for a metal concrete form flexible to a predetermined arcuate shape. A window panel of a generally rectangular shape forms part of a door which is pivotally mounted at one edge thereof for movement between an open and a closed position thereof. In the open position, concrete can be poured inside assembled forms intermediate the outside edges of the form assembly. In the closed position secured to structural members of the form, the window panel conforms to the generally arcuate shape of the form to present a substantially continuous arcuate surface for the forming of curvital concrete surfaces.