Thanks for the input, everyone.
MacGruber - I had the same line of thinking as you. As far as I can tell, there is no "dual system" classification in ASCE 7 for Ordinary Moment Frames...only Special and Intermediate Moment Frames are listed (Table 12.2-1 Parts D and E). It seems to me that I...
I'm designing a 3 story building with a lateral force resisting system consisting of steel moment frames not specifically detailed for seismic resistance (R=3). Building is Seismic Design Category C. Diaphragms are rigid. There are reinforced masonry shear wall stairwells located in a few areas...