Connection Details—Diaphragm to Wood-Frame Wall

 

Load Flow in Transverse Wall Anchorage

forces // to wall  (diaphragm shear)

  1. diaphragm sheathing → end/rim joist
    • sheathing nails
  2. end/rim joist → top plate(s)
    • framing anchor
    • toenails (see IBC section 2305.1.4)
    • blocking
  3. top plate → wall sheathing
    • sheathing nails

forces ⊥ to wall  (wind or seismic)

  1.  stud → top plate(s)
    • end nails
    • framing anchor
  2. top plate(s) → blocking to prevent rotation
    • toenails (see ASCE 7 section 12.11.2.2.3)
    • framing anchor
  3. blocking → diaphragm sheathing
    • sheathing nails

 

 

Load Flow in Longitudinal Wall Anchorage

forces // to wall  (diaphragm shear)

  1. diaphragm sheathing → blocking
    • sheathing nails
  2. blocking → top plate(s)
    • framing anchor
    • toenails (see IBC section 2305.1.4)
    • blocking
  3. top plate → wall sheathing
    • sheathing nails

forces ⊥ to wall  (wind or seismic)

  1. stud → top plate(s)
    • end nails
    • framing anchor
  2. top plate(s) → joist
    • toenails (see ASCE 7 section 12.11.2.2.3)
    • framing anchor
  3. joist → diaphragm sheathing
    • sheathing nails