Patent ID: 8959868
Filing Date: 2015-02-24
Classification: E04C,Y10T

Abstract:
1. A truss comprising; a single member upper and lower chord member, each single member chord extending in generally the same longitudinal direction and in spaced apart relation; a plurality of web members each with a first end and a second end, the web members including a crimped portion at the first end and the second end with openings disposed therein, wherein the first and second ends and openings of adjacent web members overlap; a lower chord fastening system extending vertically through the lower chord and the overlapping openings in the first ends of adjacent web members, wherein the lower chord fastening system comprises a threaded fastener inserted through an opening in the lower chord, an opening in a web member first end, an opening in an adjacent web member second end and a hole in a nutplate before being threaded to a nut, the nutplate being comprised of a flat plate with a pair of flanges extending outwardly from two opposed sides of the flat plate, the nut plate flanges being arcuately shaped and aligned with the adjacent web member; an upper chord fastening system extending vertically through the upper chord and through the overlapping openings of two adjacent web members, wherein the upper chord fastening system comprises a fastener inserted through an opening in the upper chord, an opening in a web member first end, an opening in an adjacent web member second end and a hole in a nut plate before being threaded to a nut, the nut plate being comprised of a flat plate with a pair of flanges extending outwardly from two opposed sides of the flat plate the nut plate flanges being arcuately shaped and aligned with the adjacent web member, the flanges bent at an angle of approximately 90 degrees to the flat plate are configured to interfere with the web members and limit rotation of the nut plate during assembly of the truss; a washer installed on the upper and lower chord fasteners on the side of the chord opposite the nut plate, the side of the washer placed against the chord having roughened texture to prevent lateral movement of the upper and lower chord fastening systems relative to the upper and lower chords, the upper and lower chord fastening systems configured to receive the washer limited to those fastening systems adjacent a first and second longitudinal end of the truss; and wherein a plurality of lower and upper chord fastening systems are utilized across the entire length of the truss.