After taking a look at the lateral load distribution in RAM Frame, I would like to run my model using a semi-rigid diaphragm. In RAM Modeler, when attempting to change my deck properties (for non-composite deck), I am getting the following error: …

Hello, I am having trouble finding guidance on the inputs for Deck/Slab Property Information>Noncomposite Floor System in the modeler. I am using a 1.5" deep PLB Verco Roof deck. Under Diaphragm, would the effective thickness be the thickness…