William L Gold

US Patent:

41446860, Mar 20, 1979

Filed:

Jun 27, 1977

Appl. No.:

5/810065

Inventors:

William Gold - Brooklyn NY

International Classification:

E04C 310

US Classification:

52225

Abstract:

A metallic beam, reinforced and prestressed by a cable means, to form a composite structure, the cable means extending longitudinal, along the beam's tensioned part, continuously, to both sides of the beam's section of maximum positive design moment, or its section of maximum negative design moment, or both. A metallic rigid frame, reinforced and prestressed by a cable means, to form a composite structure, the cable means extending longitudinal, along the frame's knee and, continuously, to both sides of it, along the tensioned part of the frame. In all cases, the forces of the cable means are transferred to the beam or frame by at least three anchor means, attached to the beam or frame, respectively, and gripping the cable means. At least one interior anchor means is either in the form of a sleeve, swaged to the cable means, or a cable clamp; or a sleeve into which wedges have been driven; or a socket filled with a solidified material, such as zinc. The use of a guiding means, to change the direction of the cable means, is optional when this change is desired.