Abstract: A pre-stressed construction element is set forth which includes a rigid member adapted to span longitudinally between upright supports and to define a load bearing construction element. At least one tendon extends longitudinally along the member and is connected at or adjacent the ends of the member. To pre-stress the member, each tendon is tensioned resulting in a pre-stressing compressive force to be imposed on the member at its ends. Pre-stressing enhances the load bearing characteristics of the member. To impose lateral pre-stress forces on the member supports may be provided. One or several tendons engage are deflected by and underlie the support. When the tendon is tensioned, a force is imposed upon the support and thereby the member.

Abstract: A column form support system and method are set forth encasing steel in concrete. Included are support members which are affixed to the steel and extend outwardly therefrom. A concrete form is exerted about the steel, the support members being adjustable to bear against, and support and align the form relative to the steel. Concrete is poured into the form to encase the steel, the support members maintaining the proper alignment of the form. After the concrete has hardened, the form is disassembled.