Slide 22 of 67
Notes:
SUCCESS OF PLYWOOD SHEATHING
- We learned from Northridge that plywood sheathing performs very well.
- The most important lesson that the Northridge Earthquake taught us about wood frame shear walls was the good performance of plywood sheathing.
- Shear walls sheathed with plywood performed significantly better than other sheathing materials such as gypsum wall board or portland cement plaster.
- Discussion of Figures
- Drywall Failure
- Note that the drywall has popped off the wall. As soon as the wall moved in earthquake, the wall popped off; after this, the drywall is no longer contributing to the shear wall strength.
