BrDR 7.5 Development Update

March 20, 2023

Work is now underway on the release scheduled for September 2023. Version 7.5 will introduce an advanced multi-cell box superstructure definition for curved and complex geometry. In addition, the 7.5 release will include the Phase 1 implementation of the next generation of the Report Tool.

• Advanced concrete multi-cell box (MCB) superstructure LFR and LRFR
  • Curved MCB
  • MCB with complex geometry and configuration

• Next Generation of Report Tool Phase 1
  • New reporting framework and report editor

• AASHTO Manual for Bridge Evaluation updates (3rd Edition, 2023 Interim Revisions)
  • MBE 6A.5.8 – Changes to concrete shear load rating
    • Concrete Iterative Shear Rating Control Option
    • Modify MCFT Strain and Size Effect Control Option
    • Expanded load cases for concrete shear  evaluation

• Analysis Engine Maintenance tasks
  • BSSD-1581 Add Net Area Deduction for Truss LRFR
  • BSSD-1606 and 1707 Truss Member and Gusset Plate Adjacent Vehicle Analysis
  • BSSD-1617 Provide Std and LRFD Inputs for Modulus of Rupture
  • BSSD-1622 Use Concurrent Moments in Cb Calculation
  • BSSD-1880 Provide Input for Maximum Aggregate Size
  • BSSD-1940 Improve 3D Mesh Generation to Limit Small Elements
  • BSSD-2370, 2708, and 2738 Truss Gusset Plate Shear Analysis Improvements
  • BSSD-3333 Consider Variable Axle Spacing for LRFR Permit Loads

• Top voted RADBUG enhancements that we were able to fit into the work plan. Some of the larger RADBUG enhancements that we were unable to fit into this work plan will be added to a future work plan.
  • BSSD-1585 Modeling and Analysis with Square Rebars
  • BSSD-1824 Allow LFR of Curved Steel Spans Greater Than 300 feet
  • BSSD-3109 Improve Culvert Design Tool Final Iteration Reporting
  • BSSD-3223 Improve Load Rating Tool Precomputed Data Window
  • BSSD-3552 Concrete LRFR Moment Redistribution

• Update and refresh online training tutorials with up-to-date BrDR 7.5 information