AASHTOWare Bridge^® Design and Rating Release Notes

October 2018

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:

AASHTOWare Bridge® Design and Rating Version 6.8.3 - New Features

The following enhancements and additions have been added to AASHTOWare Bridge® Design and Rating in Version 6.8.3:

• Modernized AASHTO Analytical Engine

• Errata for AASHTO LRFD Bridge Design Specifications, 8th Edition

• Application Program Interface documentation updates

AASHTOWare Bridge® Design and Rating Version 6.8.3 - Resolved Incidents

The following Support Center incidents in the AASHTOWare Bridge® Design and Rating Technical Support website are also addressed in this release:

1. BRDRSUP-1249 - For bridges that are not checked out, all input data should be accessible for review.

2. BRDRSUP-1251 - Error message-NSG Analysis

3. BRDRSUP-1262 - Reports not using Consistent Units

4. BRDRSUP-1264 - Shear Studs from design tool do not refresh on the visual tree after first creation

5. BRDRSUP-1275 - Creating/Deleting Columns

6. BRDRSUP-1293 - Average stirrup spacing is not being used to calculate the shear capacity

7. BRDRSUP-1295 - BrDR crashed on Bracing Deterioration window

8. BRDRSUP-1333 - Fatigue Shear Range at Int Bent for Pitch (6.10.10.1.2) Calculation

9. BRDRSUP-1336 - Partial shear plane shall only be checked around compression members

10. BRDRSUP-1337 - Consider partial shear plane for gusset plate at the middle points

11. BRDRSUP-1344 - LFD output report does not show "DC+Adj-LL" column correctly

12. BRDRSUP-1348 - Floorbeam Dead Load Moment increase

13. BRDRSUP-1350 - BrR does not use user defined LLDF when "Use Advanced Method with 1994 Guide Specs" is checked

14. BRDRSUP-1362 - Structure typical section->Deck (Cont'd) tab for generic deck

15. BRDRSUP-1366 - Rotation spring constant is not applied for stage 1 girder line superstructure

16. BRDRSUP-1367 - PS Box beam Copy To Library is incorrectly implemented

17. BRDRSUP-1387 - Importing a prestress tool file misses stress limits

18. BRDRSUP-1396 - Zero Rating Factors with Appendix A6

19. BRDRSUP-1399 - Remove the tooltip from the "Number of shell elements" slider

20. BRDRSUP-1402 - Issue an error if the default Range of Applicability is not set

21. BRDRSUP-1408 - Shear Stud Design Tool does not reflect Connector ID

22. BRDRSUP-1448 - Bracing RF for Legal and Permit not contained in LRFRReport.xml

23. BRDRSUP-1449 - Spec article "6A.4.2.1 Steel Flexure Moment General" should show "Fail" when the RF is less than 1.0

24. BRDRSUP-1459 - Net area Ag is not determined correctly for built up section with holes in the spec check

25. BRDRSUP-1460 - Error in saving bridge after change the "Number of Stringer Units"

26. BRDRSUP-1461 - Beta and theta are established incorrectly in article 5.8.3.4 when the overall depth is less than 16 inches

27. BRDRSUP-1464 - Issues with "Girder Floorbeam Stringer" Superstructures

28. BRDRSUP-1468 - BrR Timber Shear Distribution Factors Error

29. BRDRSUP-1476 - ASD analysis - member rating results not showing up in the Bridge Explorer

30. BRDRSUP-1477 - Issue with the software key: User Code 1 can be zero

31. BRDRSUP-1482 - Add stringer LFD LLDF on the BWS report for Truss-Floorbeam-Stringer superstructure

32. BRDRSUP-1485 - Failed to perform spec check for LRFR steel analysis

33. BRDRSUP-1486 - BrD crashed when running spec check for the pier

34. BRDRSUP-1489 - Prestress Stress Limits using wrong factors

35. BRDRSUP-1491 - LRFR spec check error when "allow moment redistribution" is checked

36. BRDRSUP-1492 - The adjacent HS20 demand for the critical load case is too large.

37. BRDRSUP-1494 - "eg" is zero for LRFD LLDF calculation

38. BRDRSUP-1496 - Truss Dead Load Stages

39. BRDRSUP-1497 - Load Combination Legend

40. BRDRSUP-1514 - The number of iterations was exceeded in article 6B.4.1 General - Steel Flexure Overload

41. BRDRSUP-1517 - LRFD output report is blank for the slab system superstructure

42. BRDRSUP-1525 - Bridge Alt window Wizards grid error

43. BRDRSUP-1529 - ASD-Failed to perform element specification checks - Index was out of range.

44. BRDRSUP-1531 - Shear stud failed but show no calculations

45. BRDRSUP-1533 - File won't run in the Prestressed Design Tool

46. BRDRSUP-1535 - Shrinkage errors in spec article 5.4.2.3.3 for multi-cell post-tensioned box

47. BRDRSUP-1539 - Fu value in article 6.13.4 is not established correctly for truss LRFR analysis

48. BRDRSUP-1542 - Analysis failed when performing spec checks in LRFR for permit truck for a variable depth concrete T beam

49. BRDRSUP-1548 - Rating factors are not available for 3D FEM analysis using "Superstructure Definition" as analysis type

50. BRDRSUP-1557 - Error adding sidewalk load for 3D FEM analysis

51. BRDRSUP-1558 - LFD stress limits are not calculated correctly using the "Compute Values" button

52. BRDRSUP-1565 - BrD Spec check error for 3D FEM analysis.

53. BRDRSUP-1566 - Superstructure DC and DW is incorrect for the Pier report

54. BRDRSUP-1570 - Error building internal model

55. BRDRSUP-1572 - LRFD LLDF calculation crashed for MCB bridge

56. BRDRSUP-1573 - Floor Line Model gives incorrect LL Moments and takes too long

57. BRDRSUP-1575 - Gusset plate thickness bug on kill focus

58. BRDRSUP-1578 - PS beam loss computation error for Pre-2005 AASHTO Refined with LRFD 8th ed.

59. BRDRSUP-1585 - Span combo box does not apply to cross section-based FB definition

60. BRDRSUP-1587 - Gusset Plate Will not attach nor analyze when the acute angle is less than 30 degrees

61. BRDRSUP-1589 - Final Tensile and Final Compressive Stress reports

62. BRDRSUP-1595 - SI LLDF Calc for LRFD in Question

63. BRDRSUP-1598 - Question - Floor System Superstructure Rating

64. BRDRSUP-1599 - Diaphragm loads crash BrR

65. BRDRSUP-1602 - Not able to paste a copy of a member alternative

66. BRDRSUP-1606 - BrR Timber Deck Error - Not Taking Maximum Plank Deck Span

67. BRDRSUP-1611 - Reviewed (opened/cancel operation) Advanced Method LFD LLDFs not Saved....

68. BRDRSUP-1612 - Program appears to hang because a window has opened offscreen

69. BRDRSUP-1613 - Convergence issues determining the controlling factor for the diaphragms

70. BRDRSUP-1615 - BrDR improperly checks the parallel requirement before applying the Appx A6.

71. BRDRSUP-1617 - Crash when updating pier geometry

72. BRDRSUP-1639 - BrR crashes after analysis run

73. BRDRSUP-1646 - Incorrect rating results when 10 or more vehicles are analyzed at one time.

74. BRDRSUP-1648 - BrR Run Error (Two Span Two Cell CIP/PS Box Girder)

75. BRDRSUP-1650 - For a Bascule Truss bridge, an unhelpful error is provided, and the program stops running

76. BRDRSUP-1651 - Girder Floorbeam Stringer System Superstructure Rating - Shear not symmetrical

77. BRDRSUP-1655 - Rating of RC Slab of Older bridge becomes as ZERO when load rated using BrR6.8.2

78. BRDRSUP-1659 - Error Editing Folder Names

79. BRDRSUP-1666 - Check Out Authorizations - By User grid rows are empty

80. BRDRSUP-1668 - BrD crash while creating wall shaft reinforcement definition

81. BRDRSUP-1674 - Illinois vehicle PD6-40 does not show up in the rating table.

82. BRDRSUP-1689 - Error getting superstructure loads from splayed superstructure for substructure model

83. BRDRSUP-1693 - Copied Superstructure definition not all getting copied

84. BRDRSUP-1696 - LFD analysis of multi-cell box full box analysis fails

85. BRDRSUP-1705 - BrR6.7 Bug/Issue: stiffened web vs unstiffened web - LFR

86. BRDRSUP-1711 - PS Mild Steel and Library Issue

87. BRDRSUP-1712 - ASR rating crashes with and error when increasing beam depth from 40.5" to 42.5" - RC T beam bridge

88. BRDRSUP-1718 - Madero - Problem with saving ASD Critical Stresses and Loads

89. BRDRSUP-1720 - 3D- FEM Analyses return only 1 RF (LFR) for EV vehicles with varied adjacent vehicles...

90. BRDRSUP-1726 - LFD Curved Girder Specification Check - Flange Bending Stress check detail missing

91. BRDRSUP-1734 - Incorrect Permit Load Factor LRFR Culvert

92. BRDRSUP-1735 - Culvert rating summary at the member level should be listed by 'Culvert Segments';

93. BRDRSUP-1736 - Unable to save data related to column reinforcement

94. BRDRSUP-1743 - H15-44 and HS 20-44 are reported differently between the straight bridges and the curved bridges.

95. BRDRSUP-1747 - Gusset Plates - Bolt Shear Resistance

96. BRDRSUP-1750 - For a through truss model (line model) with a top chord gusset plate defined, the analysis crashes if you choose to analyze including gusset plate.

97. BRDRSUP-1756 - "Consider slab structural thickness for rating" checkbox not being considered for ASD

98. BRDRSUP-1757 - Rebar location may be off for slab systems with sacrificial wear thickness

99. BRDRSUP-1758 - 8th ed 5.7.3.4.1 was not needed for the 8th edition spec updates in BrDR

100. BRDRSUP-1759 - Mild steel in ps beam should be considered in the ps loss spec checking

101. BRDRSUP-1760 - PS beams where top flange acts as deck should use refined loss method

102. BRDRSUP-1762 - LL factor not considered for ps beams with settlement

103. BRDRSUP-1763 - RC LFD engine not considering shear if a POI has LRFD Ignore Shear

104. BRDRSUP-1764 - PS Stage 2 elastic gain moment does not include DW

105. BRDRSUP-1778 - Line girder DL only analysis of PS member leads to crash

106. BRDRSUP-1783 - Truss Line Superstructure Definition Member Loads

107. BRDRSUP-1790 - MCB PT losses computed at dv locations are incorrect

108. BRDRSUP-1792 - Load rating tool issue from consultant

109. BRDRSUP-1801 - Non-applicable limit states considered for PS member spec checking

110. BRDRSUP-1805 - Truss LRFR, LFR analysis (Inventory and Operating) with counter is including Permit Lane Gap

111. BRDRSUP-1818 - Precast RC Box Culverts Reinforcement

112. BRDRSUP-1830 - Use of Report Tool in Spec Check - generates blank page

113. BRDRSUP-1832 - Error in opening File

114. BRDRSUP-1834 - Fatigue MBE 3rd ed. Spec Updates

115. BRDRSUP-1836 - Truss Allowable Net Section (6.8.2.3002 is excluding cover plates)

116. BRDRSUP-1846 - FE performance issues

117. BRDRSUP-1862 - Loading of influence lines fails

118. BRDRSUP-1870 - Crash while saving template

119. BRDRSUP-1882 - Weld fatigue considered for bolted cover plate

120. BRDRSUP-1886 - LFR critical RFs by scaling are missing for legal and permit

121. BRDRSUP-1887 - Developed deck reinforcement area in steel beams is less than the actual developed deck reinforcement

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@promiles.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.