Shaft Wall Assembly at Non-Rated Floor & 2-Hr Shaft
Required when the CLT floor is not rated and cannot be used to support the rated shaft wall assembly; in this instance, the internal steel structure supports the shaft wall.
Shaft Wall Assembly at Non-Rated Floor & 2-Hr Shaft
Description: Required when the CLT floor is not rated and cannot be used to support the rated shaft wall assembly; in this instance, the internal steel structure supports the shaft wall.
Purpose: Self-supporting shaft wall assembly.
Design Notes
- Separate steel structure mounted to concrete podium or foundation below to support shaft wall.
- Internal steel frame supports and braces the shaft wall assembly.
- CLT floor outboard of shaft wall assembly.
Acoustics:
- Shaft wall assembly estimated at STC 39-45 depending on layers of gyp for shaft rating CLT floor 3-ply (3.5″) with 3/4″ acoustic mat and 3″ concrete = IIC 45 & STC 53
Fire:
- 1-hr or 2-hr shaft wall rating; CLT floor non-rated.
- Const.
- Constructability Moderate
- Fire
- Fire Rated Up To 2 Hours