Sloping Top Chord Roof Truss

As a result the top chords of a piggy back truss are extended with a horizontal cut to allow the top chord of the piggy back truss to plane into the sloped top chords of the base truss.

Sloping top chord roof truss.

Although roof framing will usually serve as lateral bracing for the top chord members it is important that adequate lateral supports be provided for the bottom chord members see fig3 10 and also that consideration be given to the possible need for vertical sway bracing between top and bottom chords of adj acent trusses see fig. Flat the most economical flat truss for a roof is provided when the depth of the truss in inches is approximately equal to 7 of the span in inches. I am also looking for a family of a joist that has the middle of the top chord dropped. Difference in slope between the top and bottom chords is at least 3 12 or the bottom chord pitch is no more than half the top chord pitch.

To aid in manufacturing and installation a butt cut is typically added to the end of the cap truss at the end of the horizontal cut of the sloped top chord. Top chord an inclined or horizontal member that establishes the upper edge of a truss usually carrying compression and bearing stress. Hello all i am looking for some revit 2018 families for the following situation as i am working on a project that requires a single sloped pitch top chord joist and truss the bottom chord is flat as the project has a under slung crane hanging from the joists and truss.