CMU - Bond beam reinforcement minimums? 1

[lexpatrie]

Looking at a proposed detail from a contractor, it's a below grade basement wall 12" with a bond beam more-or-less at the top, they have (2) #4 rebar. My typical detail shows (2) #5. Is there a minimum reinforcement ratio that's based on or is it just "we feel like it" engineering detail?

Is anyone aware of a percentage requirement here? This reinforcement doesn't seem to be based all that explicitly on a design scenario..... (Non seismic, Seismic requirements are fully deleted in the locale). Wall supported at top by a concrete slab and at the bottom by a garage slab. About 8' with 7-6" of 45 pcf soil is what I'm looking at as a design scenario.

 

[gte447f]

2-#4 is perfectly fine for this scenario.