BrDR 6.8.4 Release Notes
- Mark Mlynarski, P.E.
Date | October, 2019 |
Product | AASHTOWare BrDR |
Version | 6.8.4 |
Description | Confluence article on BrDR 6.8.4 Release Notes |
AASHTOWare Bridge® Design and Rating Release Notes
October 2019
Legacy System End of Life
BrDR Version 6.8.4 Sunset Date: June 30, 2021
Version 6.8.4 is the last release of the legacy system and maintenance, specification updates, and support will cease effective June 30, 2021. Only critical bug fixes will be incorporated into version 6.8.4 going forward. The AASHTOWare Bridge Task Force and development team strongly encourage users to start planning for the modernization upgrade as early as possible.
Program Limitations
If you are using the Academic version of AASHTOWare Bridge® Design or AASHTOWare Bridge® Rating, be aware that you may only create bridges with the following limitations:
| Academic |
Maximum number of spans: | 3 |
Maximum span length: | No limit |
Maximum number of girders per structure: | 10 |
Maximum number of bridges: | No limit |
AASHTOWare Bridge® Design and Rating Version 6.8.4 - New Features
The following enhancements and additions have been added to AASHTOWare Bridge® Design and Rating in Version 6.8.4:
AASHTO Manual for Bridge Evaluation updates (3rd Edition with 2019 Interim)
Application Program Interface documentation updates
AASHTOWare Bridge® Design and Rating Version 6.8.4 - Resolved Incidents
The following Support Center incidents in the AASHTOWare Bridge® Design and Rating Technical Support website are also addressed in this release:
BRDRSUP-957 - BrR will not save rating results
BRDRSUP-1331 - CR and SH load factors in our Library LRFD factors after the 4th edition are wrong
BRDRSUP-1471 - Sign Convention Issue with Bearing Stiffener Spec Checks
BRDRSUP-1492 - The adjacent HS20 demand for the critical load case is too large.
BRDRSUP-1587 - Gusset Plate Will not attach nor analyze when the acute angle is less than 30 degrees
BRDRSUP-1653 - Truss Loading
BRDRSUP-1660 - LFR Ratings done from the Bridge Explorer vary depending upon whether a model is checked out or not...
BRDRSUP-1672 - Truss Element Capacities not Corresponding to truss element Rating Factors
BRDRSUP-1682 - Bent Up Reinforcing as Shear Stirrups
BRDRSUP-1687 - Change in rating factors while vehicles are added or removed
BRDRSUP-1692 - 3D Curved Imported Results differ from Copied Imported Results
BRDRSUP-1698 - Imported xml Generating Error for Wrong Type of Structure
BRDRSUP-1702 - Shear capacity for MCB changes for the whole span when a POI with override for shear is added.
BRDRSUP-1703 - Fatigue - Stress Range Cycles
BRDRSUP-1707 - Finite Element Analysis - Diaphragm controlling ratings
BRDRSUP-1710 - LFR Rating Report has Duplicate Rows for Moment and Shear
BRDRSUP-1714 - Missing Diaphragm Loads with 3D Analysis
BRDRSUP-1721 - POI at Section Change not making sense for box culvert
BRDRSUP-1723 - Zero Inventory Rating for Girder
BRDRSUP-1725 - Unidentified Schematic Color in GFS Example
BRDRSUP-1727 - Truss example incorrectly combines PanelPointLoads for DC and DW.
BRDRSUP-1741 - PS splayed girder example crashes BrDR for LFR rating.
BRDRSUP-1746 - Gusset Plates - Bolt Slip Rating Results
BRDRSUP-1753 - Service III Legal Rating for Multi-Cell Box
BRDRSUP-1761 - FE model for strands cut at midspan has transfer forces at wrong spot causing incorrect camber
BRDRSUP-1777 - Truss Analysis Problems in LFR: Erroneous Section Properties & Program Crashing...
BRDRSUP-1784 - 'Detailed Rating Results' Report for MCB
BRDRSUP-1789 - Cross Frame Moments
BRDRSUP-1794 - Error every time you try and save the 3D LRFD analysis.
BRDRSUP-1796 - Truck+Lane
BRDRSUP-1814 - NSG error does not make sense
BRDRSUP-1815 - In the overall ratings summary, the chord splice tension is controlling the rating however in the raw output, the partial shear planes are showed to be controlling the rating.
BRDRSUP-1816 - Find Bridge
BRDRSUP-1817 - Stiffeners at diaphragms
BRDRSUP-1820 - Issue with stringer rating for GFS system
BRDRSUP-1821 - Bracing at girder bay 7 are right on the girder 7, and not between the girders
BRDRSUP-1843 - Sloped portion of bent longitudinal bar not included in moment capacity calc
BRDRSUP-1849 - Bug Report: LFD Shear
BRDRSUP-1851 - Column Width Settings not being saved
BRDRSUP-1863 - Incorrect beam capacity when using cross section based approach with parabolic web variation
BRDRSUP-1868 - Multi-Cell-Box Error: Loading of influence lines failed!
BRDRSUP-1878 - Gusset Plate Bearing Check issue
BRDRSUP-1884 - Culvert Dead Load: ES and EH
BRDRSUP-1885 - Incorrect Gusset Plate Thickness
BRDRSUP-1888 - Dead load support reactions calculated by BrD program.
BRDRSUP-1889 - Saving the data on the Stringer Definition window causes the data on the Stringer Supports window to change
BRDRSUP-1893 - Corrugated Metal Panel in Library Export is Misaligned
BRDRSUP-1897 - Bridge analysis runs for 7 days and runs out of memory. Used 64Gb RAM and 141Gb Virtual Memory.
BRDRSUP-1898 - Fatigue rating and remaining life issues
BRDRSUP-1900 - LFD analysis fails to run for either design, legal or permit loads for the attached bridge file.
BRDRSUP-1904 - AASHTOWare Field Splice Rating Bolt Shear Capacity
BRDRSUP-1906 - Prestress loss error
BRDRSUP-1910 - Support Reactions from 3D Analysis are Different from 2D Line Girder Analysis
BRDRSUP-1912 - Convergence issues determining the controlling factor for the diaphragms for Legal & Permit Vehicles
BRDRSUP-1919 - Difference in RF reported in BWS and Spec Articles when the shear computation method is selected,
BRDRSUP-1921 - POI Wizard Error
BRDRSUP-1922 - LRFR LLDF Error
BRDRSUP-1923 - Modernized LRFR & LFR Engine failed to analyze Girders in Girder Floorbeam Stringer module
BRDRSUP-1925 - Significant discrepancy in live load demand for interior girder compared to BrR 6.8.2
BRDRSUP-1929 - BWS report cannot be generated with stringer deck reinforcement defined
BRDRSUP-1931 - Error in schematic for plan view for Floorbeam Stringer Module.
BRDRSUP-1933 - Pedestrian LL with Lane Load - Influence lines
BRDRSUP-1935 - Error running modernized splice LRFR spec check analysis.
BRDRSUP-1936 - Modernized LRFR engine for PT MCB: some control options not working
BRDRSUP-1940 - "Master Slave Node Pairs" table missing from 3D model xml report
BRDRSUP-1941 - BrR Considers Shear Articles for the Points Between the Support and the d Distance When the User Doesn't Ask for It
BRDRSUP-1942 - Error: "Unable to generate girder system finite element model" when using new AASHTO LFD engine.
BRDRSUP-1944 - Lane-type legal load doesn't appear in the rating results summary of the view analysis report.
BRDRSUP-1946 - Modernized 3D FEM Steel Analysis Error
BRDRSUP-1947 - Not able to import library item
BRDRSUP-1948 - The LFD line girder analysis of the multi-cell box bridge is failing in v6.8.3.3001.
BRDRSUP-1953 - Incorrect Unbraced Length and Radius of Gyration for Diaphragm Diagonal Member
BRDRSUP-1954 - New AASHTO LFR engine doesn't perform compression ratings for curved girder diaphragms while rating EV3 vehicle.
BRDRSUP-1955 - Apparent tolerance issue when adding a Point of interest (POI) for a PS bridge
BRDRSUP-1956 - Analysis Runs in Legacy and Fails in Modernized
BRDRSUP-1957 - For the analysis type 3D FEM-Vehicle Path and Superstructure Definition, for the rating method LRFR, when the advanced button in the analysis setting window is clicked, the LFR vehicle properties show up, not the ones for LRFR.
BRDRSUP-1959 - When selecting permit vehicle, the impact factor is considered as the permit live load factor in the modernized engine.
BRDRSUP-1961 - MCB Structure Cross Sections: Ixx reported as '0'
BRDRSUP-1964 - Shear-Moment Interaction Check Issues
BRDRSUP-1971 - Spans 3-5: NSG Error Message Modern LRFR
BRDRSUP-1972 - MCB. Error when running with LRFR Modernized engine
BRDRSUP-1977 - Problem viewing LRFD Analysis output BrDR 6.8.3
BRDRSUP-1978 - MCB. Issue with full box LLDFs.
BRDRSUP-1981 - System Data Export Placing Items in Std Library
BRDRSUP-1983 - BrR applies incorrect multiple presence factor when determining force effects for truss and gusset plate elements
BRDRSUP-1984 - Truss fails when running from the Bridge Explorer but runs from the BWS.
BRDRSUP-1985 - Invalid vehicle Error
BRDRSUP-1988 - Modernized 3D engines for LFR and LRFR with adjacent vehicle fail to run
BRDRSUP-1989 - Impact reduction factor applied to timber structures - should be ignored
BRDRSUP-1991 - MCB: post-tension loss error.
BRDRSUP-1992 - Settlement moment is not included in precomputed data for prestressed structures in the Rating Tool
BRDRSUP-1994 - Truss Module - Impact Bug When using Vehicle Templates
BRDRSUP-1995 - LRFR Analysis Fails due to Stringer LLDF Calculation Error.
BRDRSUP-1996 - New Madero ASD engine reports the same rating factor and operating rating for every vehicle.
BRDRSUP-1997 - For the RC slab bridge model, there is no live load being applied to the structure and the engine is not automatically calculating the live load distribution factors.
BRDRSUP-1998 - The same member repeats itself in the member rating results when the bridge is run from the bridge explorer
BRDRSUP-2000 - MCB: User POI Shear Override Schedule does not work
BRDRSUP-2001 - Curved Bridge is not completing in 6.8.2 LRFR
BRDRSUP-2002 - Error while running a curved superstructure
BRDRSUP-2003 - After running the LRFR line girder analysis for the 2 span continuous prestressed girder structure, the cross section properties are not correct at the pier location
BRDRSUP-2004 - MCB: Individual web legacy v. modernized discrepancy
BRDRSUP-2006 - NSG Member Rating Results do not show linked member results
BRDRSUP-2007 - Detailed Diaphragm Results Only Populate for 1st Span in a Multi-Span Bridge Alternative
BRDRSUP-2011 - Modernized engine will not calculate Steel Properties
BRDRSUP-2016 - NSG find DF = 0
BRDRSUP-2017 - Steel Girder runs in Legacy but not modernized
BRDRSUP-2018 - Stringer-Floorbeam-Inputted Factors
BRDRSUP-2019 - The Permit rating level in the 3D engine is not properly implemented in all aspects.
BRDRSUP-2024 - Load Rating Tool only shows analysis results for one vehicle
BRDRSUP-2027 - Issue with distributing DL of wearing surface in Girder-Floorbeam- Stringer System
BRDRSUP-2029 - Longitudinal rating for LRFR is zero and should not be zero.
BRDRSUP-2034 - Analysis failed - Model domain is null! in Modernized engine. Runs in Legacy engine.
BRDRSUP-2038 - The Computed LFD 1994 LLDFs Are not Correctly Shown in the Grid
BRDRSUP-2044 - OKiePROS with NSG does not run
BRDRSUP-2046 - 3D LFD analysis crashes when using new AASHTO LFD engine
BRDRSUP-2053 - 3D FEM Analysis will not complete after diaphragm removal
BRDRSUP-2055 - Culvert Results Showing Negative Location
BRDRSUP-2057 - Should not allow Line Girder analysis for curved girders
BRDRSUP-2058 - LRFR Rating of Corrugated Metal Decks Modern Not Running & Legacy not calculating LL / DL Moment over girders correctly
BRDRSUP-2063 - Emergency Vehicles -Failure to Run in 6.8.3 Modern Engine & Unexpected Results in 6.8.2 and 6.8.3 Legacy
BRDRSUP-2065 - NSG Error - flared girder structure Node Number
BRDRSUP-2066 - Different Rating Results Between v6.8.2 and v6.8.3
BRDRSUP-2069 - BrR Distribution Factor - Line Girder Analysis
BRDRSUP-2071 - Floorbeam alternatives won't save definition selected
BRDRSUP-2077 - Girder Systems with Timber decks Error
BRDRSUP-2078 - Culvert Issue (Part 1): Rating Factor issue with 0.0 and 99.0 RF - DL exceeds capacity, LL equal to zero
BRDRSUP-2079 - Culvert Issue (Part 2): Unsymmetrical reinforcement when it should be symmetrical
BRDRSUP-2081 - Generation of Model Domain Failed Because of Shear Connector
BRDRSUP-2082 - RF = 99 for LRFR NSG analysis
BRDRSUP-2084 - Culvert 0.0 ratings in the bottom slab for shear; critical shear calculated right at the supports
BRDRSUP-2091 - DL and LL errors in articles 8.16.6.2.2 and 8.16.6.7 when used for concrete culvert analysis.
BRDRSUP-2094 - Top Cut Strand eccentricity appears to be incorrect
BRDRSUP-2095 - MCB Analysis Error
BRDRSUP-2098 - Web Splice 6.13.5.3
BRDRSUP-2099 - Deterioration Input for Built Up members Cross section Error
BRDRSUP-2104 - Simple span RCDG fails in shear at support using AASHTO LFD with RF=0, rating is okay using Legacy AASHTO LFD engine.
BRDRSUP-2106 - Incorrect Length and shape for Type 2 Bars in RC Tee Beam
BRDRSUP-2109 - Girder FB stringer error "Unable to determine stringer dead load reactions"
BRDRSUP-2111 - Splice Check Inconsistencies v6.8.2 and v6.8.3
BRDRSUP-2112 - For modernized engine, LL DF are not being calculated. Error occurs. Works for legacy
BRDRSUP-2116 - Floorbeam Rating Differs between engines
BRDRSUP-2123 - Concrete Slab - Single vs. Multi Lane Wheel Distribution for Standard Specs
BRDRSUP-2127 - Issue with BWS Report Output for FEM run
BRDRSUP-2128 - The orientation of the angle section is ignored in LRFD article 6.9.4.4.
BRDRSUP-2129 - Shear Rating of Web Splice Plates LFR
BRDRSUP-2131 - 3rd Edition MBE Fatigue Equation (7.2.3-1) should use 2.2 factor instead of 2
BRDRSUP-2134 - Vehicle import dialog window not displaying
BRDRSUP-2135 - Axial Resistance of Bearing Stiffeners LRFD Art 6.10.11.2.4 Compares to the Shear and not Reaction
BRDRSUP-2138 - MCB; analysis in modernized engine fails
BRDRSUP-2140 - Curved bridge error with modernized engine
BRDRSUP-2141 - Critical BrR Load Rating Tool Bugs
BRDRSUP-2147 - Issue with bent cross slope modeling for multi-cell box integral pier
BRDRSUP-2151 - Error - Bridge model import failed, Error starting database session, Analysis failed
BRDRSUP-2160 - Error - Unable to retrieve the PS loss! (occurs when using modernized engine)
BRDRSUP-2165 - Field splice load rating displayed in rating results even though they do not control rating
BRDRSUP-2166 - Unable to save updated strand layout to the database.
BRDRSUP-2168 - 6.13.4 for diaphragms not computing areas correctly
BRDRSUP-2169 - Error setting the losses for the web spec checking!
BRDRSUP-2170 - Spread box beam LRFD LLDF - exterior shear two lanes range of applicability S check not correct
BRDRSUP-2171 - Cannot compute appurtenance dead load by the distribution method indicated! LFR analysis failed!
BRDRSUP-2172 - Madero Analysis failed - 6.8.3 (Timber Deck)
BRDRSUP-2176 - Error - FEA - Finite element analysis was unsuccessful due to errors! Analyze failed during finite element analysis...
BRDRSUP-2177 - Steel Deck Truss bridge with "Error - LFR Rating of Floorbeam 2 failed!" (modernized engine only)
BRDRSUP-2178 - Steel Girder error with modernized engine (works in legacy)
BRDRSUP-2186 - Modernized Madero - Error adding dead load results from modernized engine!
BRDRSUP-2187 - Modernized Madero Error - Analysis failed!
BRDRSUP-2189 - Bridge with adjacent box beams and steel exterior girder beams fails with "Unable to determine Concrete Deck Load entered on the Structure Typical Section"
BRDRSUP-2190 - Unbraced Length of Bottom Chord - K type Cross Frame - Curved Girder - incorrect unbraced length
BRDRSUP-2197 - Concrete Material Properties-Incorrect value for LRFD Modulus of Elasticity in Library entry
BRDRSUP-2198 - Do Curved Structures work in 7.0 beta 2?
BRDRSUP-2214 - Spec Check report crashes when select "all articles"
BRDRSUP-2218 - Modernized AASHTO LFD Engine for Continuous Prestressed Beams: Zero Capacity for Flexure
BRDRSUP-2220 - Bracing Length Difference between 683 and 682: Continuous Composite Steel Bridge (6.8.3.3001 ratings are roughly a third of what is seen in 6.8.2.3001)
BRDRSUP-2222 - Steel Deck Truss Bridge: Modern AASHTO engine pulling incorrect member shape and analyzing incorrect (see moment computed for DL stringer reactions), Legacy AASHTO engine (and 682) computing incorrect area
BRDRSUP-2223 - Reinforced Concrete Tee Bridge: Modernized AASHTO Engine excluding Flexural Reinforcement at change in Cross Section (Legacy AASHTO Engine works)
BRDRSUP-2224 - MCB will analyze with Legacy Engine, but will not analyze with Modern Engine
BRDRSUP-2226 - Modernized AASHTO LFD Engine for Continuous Prestressed Beams: MDL1 and Axial PS Transfer Forces different Modern vs Legacy
BRDRSUP-2227 - Simple Span Steel Bridge: Web Depth and Mu Issues
BRDRSUP-2228 - Modernized engine fails for RC Slab System with only 1 member defined
BRDRSUP-2233 - Modernized Madero Error: Analysis fails (System.NullReferenceException) when using member alternative rating method with vehicles under LRFR and a single vehicle under LFD/ASD
BRDRSUP-2234 - Failed to perform LRFD steel element specification checks System Arithmetic Exception
BRDRSUP-2235 - Unknown difference in ratings for Madero between Legacy and Modern (6.8.3.3001)
BRDRSUP-2236 - OKiePROS report only shows the RFs for the last superstructure
BRDRSUP-2238 - Steel Girder Bridge with Corrugated Deck: Live Load Impact Factor is being excluded in 6.8.3.3001 and 6.8.4.2003
BRDRSUP-2240 - Net Fracture Check
BRDRSUP-2241 - Modernized Madero Error: Ignoring Timber Deck Load
BRDRSUP-2244 - Modernized Madero Error: Ignoring Free Support Type (FIXITY incorrect)
BRDRSUP-2247 - Modernized Madero - Unknown exception in MaderoDimensions.Prepare (Line Girders) and STRINGDEAD Deck Unit Weight differences Legacy/Modern
BRDRSUP-2248 - MCB w/ parabolic soffit and varying skew error
BRDRSUP-2250 - Load Rating Tool PS Beams rating factor may be too high
BRDRSUP-2251 - Steel Load Rating Tool - Slight difference in moment capacity value when flange exceeds the b/t limit
BRDRSUP-2253 - Different Results from 6.8.3 Legacy and Modernized Engines
BRDRSUP-2260 - Gusset plate bugs from consultant
BRDRSUP-2262 - Distributed member loads disappear from stringers in floorbeam stringer system
BRDRSUP-2294 - Bug in Culvert Analysis Spec Checks
BRDRSUP-2300 - Program stops working after POI distance is changed
BRDRSUP-2308 - Live Load Distribution Factors
BRDRSUP-2310 - Do Domain calculates Modulus of Elasticity using the same equation for Std and LRFD
BRDRSUP-2311 - Floorbeam LFD Rating Cb Calculation
BRDRSUP-2315 - Multicell box LL only analysis computes reinforcement development length
BRDRSUP-2317 - Schematic of web in a parabolically varying MCB does not display properly
BRDRSUP-2318 - Calculation of the superelevation angle is incorrect.
BRDRSUP-2325 - Non-standard Gage Routing Analysis with Modernized Engine Generates RFs as 99
BRDRSUP-2330 - Gusset Plate Global Shear
BRDRSUP-2333 - RC Box Culvert Reinforcement Schematic
BRDRSUP-2335 - Modernize engine does not recognize "overwrite" capacity
BRDRSUP-2352 - Using Legacy vs Modern produces different results for Floorbeam
BRDRSUP-2366 - Legacy engine LFR rating of webs in PT MCB is using the wrong simultaneous shear in 9.20.2.2
BRDRSUP-2370 - MCB: Individual web shear LL differs between Legacy and Modernized
BRDRSUP-2372 - Modernized engine % Impact Pos Reaction is 0 while running LRFR analysis using Member Alternative rating method.
BRDRSUP-2373 - Modernized Madero engine DL and LL actions with multiple vehicles are incorrect
BRDRSUP-2377 - Processing permit through load rating tool without pre-computed data using modernized engine
Special Note on Hardware Requirements
The Hardware Requirements listed in the AASHTOWare Bridge® Startup Guide Step 5 and AASHTOWare Catalog are the requirements for typical bridge model. These requirements are highly dependent on the size of the model, the type of the bridge and the complexity of the analysis. If you have additional questions on the hardware requirements or encounter memory or performance issues, please contact AASHTOWare Bridge® Design and Rating Technical Support at BrDR@mbakerintl.com.
Version Conversion and Bridge XML files that reference 3rd-party engines
If your organization uses analysis engines other than AASHTO, Virtis, BRASS and Madero engines, the conversion of Bridge XML files from version 6.2 or older to version 6.3 and later may fail if those 3rd-party engines are referenced in the bridge description. Please see the file "Version Conversion 3rd party engines.pdf" on the AASHTOWare Bridge® Design and Rating installation media inside the VersionConversion folder for further instructions.