Redundancy Checks for Moment Frames

Question

Hi Team, 
 I have a steel structure consisting of steel moment frames in both direction. 
 There is no torsion in the building. 
 Now I need to perform redundancy checks for this as per cl 12.3.4.2 (ASCE 7-16). 
 I want to know how I can do it as per this clause and table 12.3-3 for moment frames in RAM SS. 
 How to check reduction in the story strength? 
 Please elaborate this process for moment frames. 
 
 Thanks & regards, 
 Praveen Nautiyal Project Engineer D +91 8791184891 miyamotointernational.com miyamotorelief.org

Seth Guthrie · Answer

I suppose you would individually pin the ends of select frame beams and check the redistribution of forces and deflections compared to the original analysis. The clause does say "story strength" (and not stiffness), but that's pretty abstract. We don't have any report of story strength per se, but I suppose you could do some sort of summation of member demand/capacity ratios.