Composite structure constituted standardized elements

A composite structure for use in the construction of buildings and of fixtures and appurtenances thereof, comprising, primary and secondary subassemblies interconnected with one another to provide a composite structure, each subassembly having;

• a pair of walls each having a cross-sectional shape of a type selected from the shape of an L, a C, a U, and an Omega, each wall comprising, a wall web having two mutually opposite longitudinal edges, and a wall flange on each of the two longitudinal edges, said wall flanges extending transversely of the wall web to strengthen the wall and in effect to extend one of the walls of the other subassembly in the composite structure;
• a pair of sleeves each having a generally C-shaped cross-sectional shape with one side thereof open toward the corresponding side of another one of the sleeves, each sleeve comprising a sleeve web having two mutually opposite longitudinal edges and each sleeve having a sleeve flange on each of the longitudinal edges of the sleeve web, each sleeve flange extending transversely of the sleeve at an acute angle to the sleeve web, while extending along and slidably edgewise engaging one of the mutually opposite wall flanges of the respective subassembly so as to enable the sleeves of each pair of sleeves to act as mutually opposite wall-tying members to interconnect walls of the primary and secondary subassemblies and thereby to effect the extending of the walls in the composite structure;
• and
• bridge means disposed in the subassembly between the respective pair of walls and the respective mutually opposite wall-tying members of the pair of sleeves for rigidly bracing the subassembly against loads compressive of the bridge means to strengthen the composite structure.