A structural beam comprising opposed chords and a lattice web

摘要

A structural truss comprising top 2, 3 and bottom 2, 4 chords separated by a web 1 shaped to define a lattice, wherein the web is comprised of a single piece of material. The web may be cut to form a number of different shapes such as zigzag, curved or sloped. The top and bottom chords may be welded or bolted to the web, they may further comprise a single piece affixed to a single side of the web, or two pieces which sandwich the web. The web may be shaped so as to form a tapered girder when assembled, wherein the depth of girder at one end is different to the depth at the other end. A number of different materials may be incorporated such as wood, metal and glass.