In view D, you can see that the overall design of thetruss roof transfers the entire load (roof weight, snowload, wind load, and so forth) down through the outsidewalls to the foundation.Web members must be fastened at certain pointsalong the top and bottom chords in order to handle thestress and weight placed upon the truss. A typical layoutfor a W-type (fink) truss is shown in figure 2-68. TheFigure 2-68.-Layout for a W-type (fink) truss.points at which the lower ends of the web membersfasten to the bottom chord divide the bottom chord intoFigure 2-69.—Placing trusses by hand.2-42
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