Structural member

Details Structural member Structural member

1993-02-12

1995-01-10

Safavi, Michael

Static structures (e.g., buildings)

Machine or implement

5230914, 52725, 52727, 527312, 527321, E04C 334

Patent

active

053795679

ABSTRACT:
The present invention pertains to a structural member comprising three elongated planar rectangular sheets, each sheet having a long edge and short edge, and joined by its long edge to two other sheets. The sheets thus form an elongated triangular columnar member. Each sheet has a series of semi-ellipsoid indentations extending into the triangular columnar member. The resultant structural member has rigidity in a direction perpendicular to its long axis, but has torsional flexibility around its axis. The member may also include stabilizing rods with extending axially through the member and may be filled with a stiffening agent, including polymeric resin or cement.

REFERENCES:
patent: 1364182 (1921-01-01), Conkling
patent: 2007597 (1935-07-01), Dean
patent: 2192904 (1940-03-01), Ferris
patent: 3098266 (1963-07-01), Oehmig
patent: 3516211 (1970-06-01), Rieve
"Spraying Steel," The MIT Report Dec./Jan. 1991-1992, p. 3.

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