Basic Shearwall Action
Shearwall Segment ≈ Cantilever
IBC h/b Limits
effective shear (deep-beam) resistance
Factors (similar to diaphragms)
1. sheathing thickness
- sheathing loads
- stud spacing
- unit shear
- fire rating
IBC
NDS
ASTM E119 Standard Test Methods for Fire Tests of Building Construction and Materials
2. shearwall nailing
- unit shear
3. chord design
- moment (tension & compression)
4. collector design
- same members as diaphragm collectors
- forces covered in chapter 9 (tension & compression)
5. anchorage
6. shear panel proportions
- vertical clear distance between diaphragms
- IBC h/b limits
7. deflection
- IBC limits (section 10.11)
- story drift
0:00 shim & shave
2:30 hold down, nailing