The Importance factor for earthquake loads, used in seismic load generation, was changed in 4.2.3.2 from 1.0 to 0.8. However, Shearwalls 7.22 had been using the 0.8 importance factor , based on NBC 2005 4.1.8.5, so change to the program was made.
See Also
CSA O86 Design Standard
Deflection of Shearwalls
Over-capacity Coefficient
Hold-downs in High Seismic Zones
Seismic Drag Strut Force Factor
Unblocked Shearwall Limitations
OSB Type 2 Sheathing
Update to NBC 2010 from NBC 2005
