https://communities.bentley.com/products/ram-staad/f/ram-staad-forum/192711/staadpro-unity-check-optimization-ratioI am inuring on the basis on which the software Staad Pro considered when calculating the &quot;Optimization Ratio&quot; or &quot;Unity Check&quot;. Does the Optimization Ration relate to the Yield Strength of the material or the stresses (Normal, Shear), Bending Momenten-USTelligent Community 12https://communities.bentley.com/thread/569860?ContentTypeID=1Wed, 19 Feb 2020 22:51:02 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:8785f97e-0f11-405b-a2bb-ce77aa321ff2Sye<p>Unity Check is carried out based on the equations published in the selected code. On a general note, STAAD.Pro does check for slenderness, axial tension/comp, bending,shear, torsion and interaction. Deflection is also checked when the user specifies the appropriate design parameters as per the selected&nbsp;code.&nbsp;For design as per AISC 360 specifications, one needs to specify the serviceability and strength envelopes to check for both deflection and strength.</p><div style="clear:both;"></div>https://communities.bentley.com/thread/569819?ContentTypeID=1Wed, 19 Feb 2020 19:45:30 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:2b546ab1-ab4c-4078-aa56-8ac59f0b9068George Carvajal<p>Sorry for misspelling. I mean &quot;inquiring&quot;.</p><div style="clear:both;"></div>