https://communities.bentley.com/products/ram-staad/f/ram-staad-forum/193525/negative-load-case-vs-negative-load-combinationDear Colleagues, Say if I have to apply wind on all the four sides (+x / +z / -x / -z) of an irregular structure/geometry, is it okay to consider only 2 positive cases (+x / +z) as Basic Load Case and generate 4 load combinations with 2 positive anden-USTelligent Community 12https://communities.bentley.com/thread/574389?ContentTypeID=1Sun, 15 Mar 2020 13:50:11 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:bee7e8cd-315d-4647-b88b-734da5cdf645Dani Paul<p>Thanks Sye for your kind response; however my colleagues still insist that irrespective of the structural irregularity / geometry, if there isn&#39;t any change on the intensity of external forces acting on the structure, the forces remain same (except for the change in direction); say for instance the values for support reaction for +x &amp; -x would be same - if so, why not just ignore the load case, and use negative sign in the load combination instead...</p> <p>i&#39;m puzzled, can you throw some light on this (if you don&#39;t mind) ?</p><div style="clear:both;"></div>https://communities.bentley.com/thread/573213?ContentTypeID=1Mon, 09 Mar 2020 17:06:49 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:7a76a4bc-3b2b-4966-a432-3f462f99110fSye<p>Since the structure is irregular, it is better to apply the wind in the negative directions&nbsp;as separate load cases.</p><div style="clear:both;"></div>