https://communities.bentley.com/products/ram-staad/f/ram-staad-forum/198743/staad-pro---elastic-footing-problemHello, When running the analysis for a concrete plate supported on elastic supports and a nodal load in the center of it, the following &quot;error&quot; appears: Does anybody know what is wrong? Thank you in advance, Ignacioen-USTelligent Community 12https://communities.bentley.com/thread/725047?ContentTypeID=1Fri, 05 Aug 2022 05:42:55 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:5c00e237-bc56-4254-97ed-248d1439ce0bMario Romero Castello<p>EXCELENTE, GRACIAS INGENIRO</p><div style="clear:both;"></div>https://communities.bentley.com/thread/592378?ContentTypeID=1Thu, 11 Jun 2020 16:27:49 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:3a0a640e-bc67-4482-aaaa-26a4368841fdSye<p>The error is due to the fact that the two numbers after the command ELASTIC FOOTING has been entered as 0 0 whereas this is supposed to represent the length and width of the elastic footing. A sample is shown next</p> <p>1 TO 6 ELASTIC FOOTING 1 1 DIRECT Y SUBGRADE 150</p> <p>In the above example a size of 1&nbsp;ft x 1 ft is considered as the size. For multiple nodes this size would be based on the distance between the nodes. The direction would also be Y as opposed to X.</p> <p>Having mentioned that, when you are modeling the mat with a mesh of plates, you need to use PLATE MAT support instead.</p><div style="clear:both;"></div>