Double-Pitched Top Chord Joists Have Double-Pitched Top Chords With The Ridge At The Centerline And A Straight Bottom Chord With A Modified Warren Web Configuration. The Pitch Is Constant From The Bearing Points To The Ridge With The Maximum Depth At The Centerline
The forces induced by the pitch of the top chord are accounted for in the design of the joist.
All standard procedures are followed.
Indicating the following required information on the structural drawings will expedite the pricing and detailing of the project, resulting in fewer questions on the joist approval drawings.
BELOW IS AN EXAMPLE OF HOW TO EFFECTIVELY SPECIFY A DOUBLE-PITCHED TOP CHORD JOIST PROFILE AND LOADING DIAGRAM. DIAGRAMS SUCH AS THESE SHOULD APPEAR ON THE STRUCTURAL DRAWINGS TO EXPEDITE THE DETAILING AND APPROVAL PROCESSES.