Prestressed structural support and method for making same

Details Prestressed structural support and method for making same Prestressed structural support and method for making same

1986-05-30

1988-05-24

Scherbel, David A.

Static structures (e.g., buildings)

With component having discrete prestressing means

Beam, girder, or truss construction

52 86, 52227, 52720, 52730, E04B 512, E04C 314

Patent

active

047457180

ABSTRACT:
The invention comprises an improved structural support member, and method for making the same, having bonded wood beam members which are prestressed during the bonding process. The prestressing is such that significant stresses are induced in an outer surface in at least one of the beam members and at least partially retained by the cured bond. The stresses are such that a significant compression prestress is induced at the bottom surface of the structural support whereby it is capable of carrying a much greater load represented by the compression prestress at the bottom surface.

REFERENCES:
patent: 1606769 (1926-11-01), Miller
patent: 1762363 (1930-06-01), Sergent
patent: 2039398 (1936-05-01), Dye
patent: 2342916 (1944-02-01), Blaski
patent: 3294608 (1966-12-01), Peterson
patent: 3686809 (1972-08-01), Lindal
patent: 3849963 (1974-11-01), Harmon
patent: 3860687 (1975-01-01), Bernander et al.
patent: 4500378 (1985-02-01), Reppel et al.

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