https://communities.bentley.com/products/ram-staad/f/ram-staad-forum/159190/why-is-the-plate-and-beam-moment-sign-does-not-change-with-pressure-load-directionGood Day, I am just new to Staad Pro so Kindly explain to me in very preliminary way, This is simple Slab of 350mm thickness Supported by beam of 350x350mm on four sides supported by pinned supports an uniform pressure load of 100kN/m2 is applieden-USTelligent Community 12https://communities.bentley.com/thread/474818?ContentTypeID=1Mon, 06 Aug 2018 13:11:49 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:3db39aa2-3db3-4d94-b02a-41a8c965ea71Muhammad Hasan<p>Thank you</p><div style="clear:both;"></div>https://communities.bentley.com/thread/474814?ContentTypeID=1Mon, 06 Aug 2018 12:44:14 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:16d87790-b806-44d0-90b4-d03e64588afdModestas<p>I think this Bending Moment Diagram on the beams is due to the selfweight of beams only. The pressure load is not distributed correctly, because the plate is not meshed. You may try to mesh the plate (together with beams) and the results should become more realistic.</p><div style="clear:both;"></div>