Patent ID: 7637070

Claim:
A system for constructing environmentally resistant structures, the system including a plurality of types of modular structural components, each structural component including a plurality of structural elements, the structural elements comprising: chords, each chord including a generally elongated main body having generally square cross section defined by four main walls surrounding a central bore and having four interior main surfaces and four exterior main surfaces, and a T-slot structure extending along and centered on each exterior main surface, each T-slot structure having an interior T-slot adapted to accept a bolt type fastener, each T-slot including a shaft slot extending inwards from an outer surface of the T-slot structure and connecting with a cross slot extending at a right angle to the shaft slot at an inner end of shaft slot, and forming strips, each forming strip including a single generally elongated strip plate formed into a plurality of strip segments, each strip segment being oriented at a right angle with respect to an adjacent strip segment and the strip segments being formed into regions including, in succession, a corner region forming a w-shaped cross section forming bearing surfaces mating with corresponding chord bearing surfaces formed by two adjacent main walls and an adjacent side wall of T-slot structure, a face region forming a bearing surface mating with chord bearing surfaces formed by outer face surfaces of the T-slot structure, and an attachment region extending outwards from an edge of the face region for stiffening of the forming strip, double chord beams, each double chord beam including a pair of parallel chords spaced apart by at least one beam spacer, and double beam connectors, each double beam connector including a first pair of parallel chords connected and spaced apart by at least one spacer, and a second pair of parallel chords extending orthogonally to the first pair of parallel chords and spaced apart by a spacer with an end of each of the chords of the second pair of parallel chords affixed to one of the chords of the first pair of parallel chords.