Analysis model choices This section looks at how your choices of settings, entity types, and properties affects the solver models that are created. Click the links below to find out more: Beam end releases and partial fixity Rigid offsets and rigid zones in concrete members Meshed slabs Sub models One-way and two-way load decomposition Diaphragm action in roof panels and slabs Meshed walls Cracked, partially cracked, and uncracked concrete members The Direct Analysis Method