Floor Joists Hung Inside Stem Wall

[TFreeman001]

Designing a 1-story home on 3-side walkout basement, concrete stem wall at front. Covered porch at front entry which is universal design.
Looking to create an entry without a step but also wanted to avoid moisture, termite and rot troubles...
Have seen several suggested solutions that include a ledger on the inside top of the concrete stem wall with hangers for the joists. Top of the joists flush with the top of the sill plate. Subfloor extends over the sill plate. Allows concrete porch to be flush with the top of the concrete stem wall (assume some expansion component required). The ledger board would be attached to the stem wall with J hooks, washers and nuts.

Is this installation code compliant in that it provides lateral restraint at the top of the stem wall.
Does it require engineered design or is it prescriptive within the 2018 IRC.

I have attached a link to a picture, sorry could not imbed from my Dropbox.
Picture

Thanks for any input.
Tony Freeman

 

[BN4537]

Designing a 1-story home on 3-side walkout basement, concrete stem wall at front. Covered porch at front entry which is universal design.
Looking to create an entry without a step but also wanted to avoid moisture, termite and rot troubles...
Have seen several suggested solutions that include a ledger on the inside top of the concrete stem wall with hangers for the joists. Top of the joists flush with the top of the sill plate. Subfloor extends over the sill plate. Allows concrete porch to be flush with the top of the concrete stem wall (assume some expansion component required). The ledger board would be attached to the stem wall with J hooks, washers and nuts.

Is this installation code compliant in that it provides lateral restraint at the top of the stem wall.
Does it require engineered design or is it prescriptive within the 2018 IRC.

I have attached a link to a picture, sorry could not imbed from my Dropbox.
Picture

Thanks for any input.
Tony Freeman

If it is done exactly as pictured, with the ledger board bolted to the concrete and also resting on the concrete, and that board is treated lumber, I would accept that all day long, with or without an engineer's stamp.

Keep in mind that I'm not a California guy, and California codes and laws maybe different, so you may need to have a licensed design professional stamp your plans to get a permit. Any architect or engineer can make that system work very easily.

Edit: sorry, read your location too fast, South Carolina, not California. South Carolina is not nearly as different as California is...

 

[mtlogcabin]

Why not just rip a 2X that fits your foundation wall width and use top flange hangers?
Or as some do here pour a wider footing that will support a stem wall that the floor joist can set on

 

[steveray]

Put a "brick shelf" on the inside to carry the floor system? No bolts, no hangers.....

 

[ICE]

Nelson studs with a PT ledger is the way to go.