https://communities.bentley.com/products/ram-staad/f/ram-staad-forum/199322/model-checksir plz check my file and suggest if any thing is missing.i am at learning stage so plz help me. check the seismic and reference load case and any thing which u found the common error.en-USTelligent Community 12https://communities.bentley.com/thread/594915?ContentTypeID=1Thu, 25 Jun 2020 19:55:32 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:96ee3257-9c63-49ab-84d0-17903b084ef1Sye<p>There is an additional PERFORM ANALYSIS and CHANGE command after the load case 2 which can be taken out&nbsp;</p> <p>You may want to check the property assignment for the member 174 as both YD and ZD has been specified as zeros.</p> <p>MEMBER PROPERTY AMERICAN</p> <p>174 PRIS YD 0 ZD 0</p> <p>The reference load definition seem to be ok. You may want to check the notes in the analysis output file related to torsional irregularity checks with regards to the IS 1893-2016 code. I am not familiar with the specifics of that code but the output does list the specific clauses/tables and that should give you information on which criteria are being satisfied and which are not.</p><div style="clear:both;"></div>https://communities.bentley.com/thread/594885?ContentTypeID=1Thu, 25 Jun 2020 15:12:21 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:628d0df2-b149-40bb-ac37-cf6e2778498fprashant kumar<p>sir plz help .</p><div style="clear:both;"></div>