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Re: UBC'97 and AISC - ASD

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The confusion in relating UBC97 to ASD is due to the fact that the Rw values 
from UBC94 were reduced by approximately 1.4 to get new R values in UBC97.  
Thus, the net design load remains about the same but "E" now essentially 
already includes a load factor.  This is the reason E is divided by 1.4 for 
ASD.  Thus if you are designing by AISC-ASD, use E/1.4 based on UBC97 (and 
using R-values from UBC97).