Static structures (e.g. – buildings) – Tensioned or flexed sheet facing
Patent
1977-06-27
1979-03-20
Perham, Alfred C.
Static structures (e.g., buildings)
Tensioned or flexed sheet facing
52 73, 52223R, 52223L, E04C 310
Patent
active
041446860
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.
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