Shear transfer at end of deep truss
Shear transfer at end of deep truss
(OP)
The architect is requiring a 5' overhang for wood trusses. This gives a height of truss at bearing of 2'-9". With truss lookouts, shear transfer from diaphragm to blocking to collector to shear wall is easy enough with Simpson ties. Is there an easy way to do this with deep truss bearing?





RE: Shear transfer at end of deep truss
You can put the collectors directly above the walls and then brace it back down to top of wall level.
RE: Shear transfer at end of deep truss
RE: Shear transfer at end of deep truss
RE: Shear transfer at end of deep truss
It is important to detail the Boundary Nail of sheathing to top edge of blocking panel, and the panels attachment to the bearing top plate (say Simpson LTP4's).
The horizontal load applied to the top edge of the panel causes compressive and uplift loads on the blocking panel's verticals that needs to be addressed: Hold-down, nailing to common truss verticals with transfer to adjacent panels vertical, or site built transfer blocking is needed.
It's quite common for truss blocking panels to be supplied but not laterally analyzed correctly. Check/Design/Detail the load path.
Another method for cantilevers is to have the roof boundary end at the eave/tail, Boundary Nail to the top edge of blocking, and path the horizontal load back to the wall with structural sheathing attached to the bottom edge of the bottom chord of the truss.