Heavy construction system using composite members

Details Heavy construction system using composite members Heavy construction system using composite members

1994-06-14

1997-07-08

Friedman, Carl D.

Static structures (e.g., buildings)

Openwork; e.g., truss, trellis, grille, screen, frame, or...

Three-dimensional space-defining

5265102, 5265109, 403230, 403263, 403169, 403171, 403176, 403217, E04H 1202

Patent

active

056448880

ABSTRACT:
Pultruded composite members which interfit to form a rigid post and beam, or beam and brace, are adapted for use in heavy construction in such applications as bridges, buildings including high rise structures, ship deck and the like. Two pultruded shapes are used for the entire framework. A first member ordinarily serving as a beam is pultruded as a completely enclosed thick-walled I-beam with an internal channel which is formed with a continuous scalloped or toothed cross-section on both sides. The mating support member has a bifurcated end with outer sides configured to interlock with the sides of the internal channel of the I-beam. Access into the channel is provided by periodic windows milled into the beam at the precise entry points of the insertion member. The bifurcated end of the insertion member compresses adequately to be inserted into the channel of the cross-beam, where it expands such that the external teeth engage the scalloped walls of the I-beam and lock securely into place. A block is then positioned between the tines to prevent their closure so that a positive lock of extreme strength is provided between the two members.

REFERENCES:
patent: 5319901 (1994-06-01), Goldsworthy et al.

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