https://communities.bentley.com/products/ram-staad/f/ram-staad-forum/91769/staad-pro-material-parameters-ry-and-rtQuestion: What are the RY and RT parameters is Material Steel definition? Answer: RY is Yield Strength Ratio RT is Tensile Strength Ratioen-USTelligent Community 12https://communities.bentley.com/thread/263593?ContentTypeID=1Mon, 21 Oct 2013 12:54:03 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:e69bbaca-267c-47f5-895a-06be12e2072aModestas<p>Some more information can be found in this Forum post: <a rel="nofollow" target="_new" href="http://communities.bentley.com/products/structural/structural_analysis___design/f/5932/p/89631/255072.aspx#255072">communities.bentley.com/.../255072.aspx</a></p><div style="clear:both;"></div>https://communities.bentley.com/thread/263527?ContentTypeID=1Sat, 19 Oct 2013 04:09:33 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:b11c60fd-1595-42bd-9f4b-8bd2f5d4f167Seth Guthrie<p>Those properties are used in the the integrated Connection Design when performing seismic provisions, in particular.</p><div style="clear:both;"></div>