Self-supporting girder structure

Details Self-supporting girder structure Self-supporting girder structure

1975-03-19

1979-03-20

Perham, Alfred C.

Static structures (e.g., buildings)

Tensioned or flexed sheet facing

52 31, 52173R, 52227, 5230916, 198860, E04C 310

Patent

active

041446879

ABSTRACT:
A self-supporting girder structure which comprises a plurality of sections of rigid material having a triangular cross section while means are provided for preventing the sections from a mutual lateral displacement, means being provided which extend through holes in all of the sections in the longitudinal direction of the structure for holding the sections together.

REFERENCES:
patent: 1385606 (1921-07-01), Christensen
patent: 1579285 (1926-04-01), Danaher et al.
patent: 2075633 (1937-03-01), Anderegg
patent: 2645115 (1953-07-01), Abeles
patent: 2874812 (1959-02-01), Clevett, Jr.
patent: 3253416 (1966-05-01), Madison
patent: 3260025 (1966-07-01), Van Der Lely
patent: 3372518 (1968-03-01), Rensch
patent: 3472031 (1969-10-01), Kelso
patent: 3478865 (1969-11-01), Vogel

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