Why does ADAPT-PT and ADAPT-Floor Pro uses 0.3*LL for the Sustained Load service combination?
ACI-318 refers to “sustained” loads, but does not specify a percentage. We used 0.3 as default since the European Code EC2- EN1992-1-1:2004(E) that is currently governing structural design in Europe recommends 0.3. I am told the corp of engineers in the US uses 0.5. Also, using other codes, some designers in Dubai use 0.2.