Roof Truss Bottom Chord Bracing

Buildings with suspended ceilings require additional bracing to ensure the lateral stability of the walls.

Roof truss bottom chord bracing.

Nail braces vertically every 4 feet along the top and bottom of a gable truss. Or less per tdd. Install 2x4s at a 45 degree angle. Use a t brace to support the truss vertically.

Diagonal restraints are restraints placed between lateral restraints in the same plane and. Lateral restraint are restraints between chords or webs of adjacent trusses. Answer permanent building stability bracing of trusses and anchorage to the building individual truss member lateral restraint and diagonal bracing. By the use of strategically located x bracing loads from the endwalls and truss bottom chords can be transferred into the roof diaphragm.

See web restraint application on bottom left 15 0 o c. Bridging is a restraint between the. The stabilizer shown in red truss brace on the web member as required by tdd. Restraint methods lateral restraint.

The bottom chord ties and bracing are intended only to restrain i e. Roof truss bottom chord bracing properly designed and installed will not only keep the trusses in plane standing upright but will also brace the endwall columns. Diagonal braces are required at each end of a truss row and repeated every 10 truss spaces 20 maximum. Diagonal bracing installed for the purpose of increasing the stability of the truss system during installation shall be installed on web members verticals whenever possible located at or near each row of bottom chord lateral restraints.

The stabilizer shown in red truss brace on the bottom chord as required by tdd. For an efficient layout of the truss members between the chords the following is advisable.