https://communities.bentley.com/products/bridge_design___engineering/f/bridgemaster-lars-leap-openbridge-rm-forum/240942/leap-bridge-concrete-substructure-designWhen designing substructures in LBC, can multiple LL be evaluated within the same model? I am designing to HL-93. When generating LL on the Loads tab, you can select multiple LL&#39;s, but it appears that only the one highlighted is used in the analysis.en-USTelligent Community 12https://communities.bentley.com/thread/750929?ContentTypeID=1Fri, 27 Jan 2023 19:13:03 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:dd30bdce-e068-4d82-af64-39be06702d2cAlex O [Bentley]<p>Peter,&nbsp;&nbsp;</p> <p>LL vehicles selected for design are enveloped under both, Superstructure (former CONSPAN) and Substructure (former RC-PIER).&nbsp; Under Superstructure the program reports LL analysis results for Load Cases and Envelopes.&nbsp; Maximum effects per vehicle can be checked by scrolling under Load Cases (see screen shot below).&nbsp; Analysis results under Load Case are per lane without DF and IM. Under Substructure the program reports the vehicle that controls the maximum reaction used for LL generation under LL Details.&nbsp;</p> <p><img style="max-height:480px;max-width:640px;" alt=" " src="/resized-image/__size/1280x960/__key/communityserver-discussions-components-files/5930/CSPN-LL-details.jpg" /></p><div style="clear:both;"></div>