초록 ▼

The present invention includes wood I-beams with fiber reinforcement. In a preferred embodiment, a wood I-beam includes an opposed pair of elongated wood flanges and a substantially continuous web positioned between them. In one embodiment, the web includes multiple metal tubes that extend between t

The present invention includes wood I-beams with fiber reinforcement. In a preferred embodiment, a wood I-beam includes an opposed pair of elongated wood flanges and a substantially continuous web positioned between them. In one embodiment, the web includes multiple metal tubes that extend between the wood flanges and form a zig zag pattern. The ends of the metal tubes are flattened parallel to the plane of the metal web so the ends can fit within either slots in the top surface of the bottom wood flange or slots in the bottom surface of the top wood flange. Metal pins pass through the sides of the wood flanges and the flattened ends of the metal tubes to secure the tubular metal web to the flanges. In other embodiments the web includes oriented strand board (OSB) or plywood. Reinforcements are adhered to the wood flanges so that the metal pins also pass through the reinforcements. The reinforcements preferably include multiple fiber strands held within a resin matrix.

대표청구항 ▼

[ What is claimed is:] [1.] In a wood structural I-beam having first and second flanges that include wood and are spaced apart by a transverse web segment that defines a web plane through the flanges, each flange having opposed main flange faces transverse to the web plane, the improvement comprisin

[ What is claimed is:] [1.] In a wood structural I-beam having first and second flanges that include wood and are spaced apart by a transverse web segment that defines a web plane through the flanges, each flange having opposed main flange faces transverse to the web plane, the improvement comprising:a first reinforcement panel having plural fiber strands held within a resin matrix, the first reinforcement panel having a pair of opposed reinforcement major faces, at least one of the major faces having surface characteristics formed specifically to facilitate adhesion of the first reinforcement panel to the wood I-beam, the first reinforcement panel being adhered with its major face aligned transverse to the web plane to the first flange.