Check out the following technical note posted on the AASHTOWare BrDR Technical Support website at https://aashtowarebrdr.org/ on September 21, 2026. To access BrDR Technical Notes, navigate to the Bridge Design and Rating menu at the top, select Technical Notes from the menu, and login using brdr.
- Technical Note 90 – Bridge Explorer Results for 3D FEM Analysis with Linked Girders – For 3D FEM analysis run from the Bridge Explorer, the Bridge Rating Results window does not consider results from linked girders when determining controlling rating factors, which may produce an unconservative result if one of the linked girders is controlling. The Member Rating Results window also does not show rating results for any linked girders. A workaround is provided in the Technical Note. This issue will be fixed in BrR version 7.9. See Technical Note 90 – Bridge Explorer Results for 3D FEM Analysis with Linked Girders for more information.
Please direct any questions to AASHTOWare Bridge Design and Rating Technical Support at BrDR@promiles.com.