When designing substructures in LBC, can multiple LL be evaluated within the same model? I am designing to HL-93. When generating LL on the Loads tab, you can select multiple LL's, but it appears that only the one highlighted is used in the analysis. Do I need one analysis for Design Truck + Lane and a separate analysis for Design Tandem + Lane. For instance, when generating LL from the screenshot below, only the Design Tandem + Lane appears to be used in the analysis.
The above question made me rethink how the LL is handled in the superstructure design. For superstructures, it appears that multiple LL are analyzed. Is that correct? If multiple LL's are investigated in the analysis, is there a way in the results to determine whether or a given force is produced by the design tandem + lane or the design truck + lane?