https://communities.bentley.com/products/ram-staad/f/ram-staad-forum/235126/related-to-member-fail-in-response-spectrum-analysisI am designing a G+2 building but am unable to remove warnings. you can see the file I attached. if I am wrong please try to provide the sample file of response spectrum analysis file for reference.en-USTelligent Community 12https://communities.bentley.com/thread/730466?ContentTypeID=1Wed, 07 Sep 2022 13:46:21 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:b096087e-23c0-488a-933d-af408737646aDSANJU<p>In Response Spectrum analysis using IS1893 code, the direction factor should be the value of Z/2 x I/R. You need to use-</p> <p><img src="/resized-image/__size/320x240/__key/communityserver-discussions-components-files/5932/pastedimage1662558282826v1.png" alt=" " /></p> <p>If you have a mass refeence load case present, you don&#39;t require to use seismic weights- the program wil calculate it from mass reference load case. You need to increase the column and beam sizes.</p> <p><a href="https://communities.bentley.com/cfs-file/__key/communityserver-discussions-components-files/5932/staad-file-amit-sir.STD">communities.bentley.com/.../staad-file-amit-sir.STD</a></p><div style="clear:both;"></div>