Parking Garage to R2, Type V Construction

[jar546]

How do you connect an R2, four-story building of Type V construction to a concrete parking garage where two breezeways with elevators are located? The elevators are incorporated into the breezeways. The R2 building is FS protected.

These are two different types of construction. The 3rd floor has a concrete catwalk where the elevators meet, where you can go left or right to the appropriate R2. The units are two stories each. There are 12 units.

Click on the image to enlarge.

 

[jar546]

I received this and thought it might be helpful. Looking for opinions from others on this.

https://www.woodworks.org/wp-content/uploads/solution_paper_mixed-use_building_requirements_woodWorks.pdf

 

[steveray]

Put a small firewall in the connector? Or maybe it falls in the pedestrian walkway stuff?

 

[Yikes]

In my own experience here in CA, the two different structural systems typically require a seismic joint between them.
In the photo you provided, the breezeway vertical component on the right appears big enough to be the size of a stairwell shaft in addition to the elevator. Are those stairwells the MOE for the R2? If yes, I’d put the seismic and fire separation and construction type change right at the face of the parking garage, use one breezeway as a horizontal exit for the garage, and put another stairwell at the far corner of the garage, outside the area visible in the picture.

 

[jar546]

Are those stairwells the MOE for the R2?

For the six owners who occupy the 3rd and fourth floors, those stairs are the only way to a public way after exiting their units. To get to grade, its either the stairs or the elevator.