Patent ID: 6842981
Filing Date: 2005-01-18
Classification: E04C,Y10T

Abstract:
1. A method of computer-design of a wooden roof truss having a bottom chord and at least one upper chord obliquely disposed relative to the bottom chord, said upper chord and said bottom chord to be connected by at least one web via nail-plated joints, said method including the steps of: setting a plurality of web designs having tapered end shapes at each end thereof and being of discrete web lengths at increments between minimum and maximum web lengths, said plurality of web designs, tapered end shapes and discrete web lengths being predetermined without knowing shape, pitch and span of said wooden roof truss to be designed; computer-generating a truss design for said wooden roof truss via truss design software, said truss design software taking into consideration the shape, pitch and span of the wooden roof truss to be designed and calculating target joint locations for joints between webs and chords of said truss to be designed, said truss design software then taking into consideration said plurality of web designs and said calculated target joint locations by applying predetermined criteria to sequentially select web designs from said plurality of web designs to result in actual joint locations which satisfactorily approximate said target joint locations.