Slide 17 of 24
BASE SHEAR AND CRIPPLE WALLS
- A cripple wall receives all the earthquake force of the building.
- What is a cripple wall?
- A cripple wall is a wall that is less than full story height.
- The cripple wall usually occurs between the first floor and the foundations and is generally the weakest part of older buildings.
- These cripple walls are weak typically sheathed with only stucco or horizontal wood siding on the exterior side of the wall.
- These sheathing materials are weak wall-bracing methods for seismic loads.
- You will learn more about this in the section on “Shear Walls”.