https://communities.bentley.com/products/bridge_design___engineering/f/bridgemaster-lars-leap-openbridge-rm-forum/91676/rm-bridge---cable-sagging-for-cable-stayed-bridgesHi all, I have a doubt that I have already ask to the technical assistants, but I paste it here so it may help others too. I want to perform a Construction Stage Analysis of a cable stayed bridge. For a first shot (and for having something to compareen-USTelligent Community 12https://communities.bentley.com/thread/263626?ContentTypeID=1Mon, 21 Oct 2013 16:10:30 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:a9c69a4b-02cf-4a4a-af78-0d8703ab6d57Rafael Rodr&#237;guez Molina<p>Hi all, </p> <p>I received (quite fast, by the way) an answer about my doubts. I paste it here in case it helps anyone. </p> <p>Regards</p> <p>Rafa</p> <p>************************</p> <p>Hi Rafael,</p> <p>Regarding your doubt about Cable Sagging:</p> <p>Please notice that schedule action ‘UpdEmod’ refers to time dependent variation of Elastic Modulus (of concrete) and should not be used for linearized consideration of cable sagging.</p> <p>Action ‘CabSag’ might be a proper approach for consideration of stiffness change in cables due to cable sagging in linear analysis. It works as you expect below (E-Modulus will be modified according user input and effects only loads applied in this state). </p> <p>In case that you need a more accurate consideration of this effect we recommend to perform a non-linear analysis in which cable sagging is considered by ‘large displacement’ analysis of cable elements. See also: 13.1.4.2 ‘Considering the non-linear cable geometry (Stay Cable nonlinear)’</p> <p>Best regards,</p> <p>Harald </p><div style="clear:both;"></div>