Autodesk Structural Bridge Design 2024

New Features In This Release:

-Eurocodes example manual.
-The Eurocodes example manual has been fully rewritten for the latest features and workflows in Autodesk Structural Bridge Design 2019. The associated files have been revamped and are located here:
-C:\ProgramData\Autodesk\Structural Bridge Design 2019\Examples\EN Data Files
-Eurocodes load optimization.

-Option added to include or exclude axles in the adverse area for highway loading special vehicles and special order vehicles.

-This option is implemented for both line beam and refined analysis.
-Miscellaneous.

-The Java environment can now be 32-bit or 64-bit (previously only 32-bit). As alternative to Oracle distribution, OpenJDK can now be used. Java is required for PDF creation.

-Option added to remove filename reference from the calculation header.

Project / Structural Analysis:
-Access violation error following transfer of results for post-tensioned design beam with no tendons defined.
-User defined special vehicles are not correctly placed laterally in a BD86/11 load optimisation.
-Eurocode + UK NA special vehicles (SOV) not implementing variable spacing.
-EU Line Beam Analysis - Automated loading for single track user vehicle does not use clear distance before and after (as defined in the vehicle definition) when placing accompanying vehicles.
-Setting Accidental Loading to Vehicle keeps HA UDL and KEL selected for BD 21/01.

Design Beams:
-Post-tensioned design beam tendon definition - unable to edit lump sum losses.
-Access violation error in single Post Tensioned beam tendon definition.
-Unable to set Post-tensioned design beam tendon status to destress.

Design Sections:
-Access Violation error when running analysis for a section with prestress tendons according to AASHTO LRFD 7.
-Australian or AASHTO design section ultimate limiting strength capacity may be incorrect.
-BS: Shear calculations of prestressed section with external tendons now dealt with according to BD86/94.

New Features

- Analysis and design to Australian Standards 5100:2017 (2nd Edition).
This release maintains the superseded AS 5100:2004 and has the ability to convert between editions. Significant changes to the 2004 edition of AS 5100.5 include the design of flexural members for shear and torsion, incorporating the modified compression field theory. For details of other changes refer to the preface in the Standards.
- Canadian precast sections added.
- Mixed beam type linebeam models.
Dead load and deflection analysis can now be performed for mixed beam linebeam models. If the linebeam contains both composite steel and concrete beam types, set the continuity for the concrete type. The composite steel type will be continuous from girder only.
- Pre-tensioned prestressed beam analysis.
Non-prestressed reinforcement can be optionally included in the calculation of cross sectional properties of the non-composite section via a new check box on the design beam analysis form. The default is to exclude reinforcement for legacy files and to include for new beams. For Eurocodes shear analysis, it is now possible to override the effective depth value on the section definition form. The results detail the default value calculation.
- AASHTO LRFD - Design Section Service Limit State.
The following options are added for the control of cracking calculations: Apply 2" concrete cover limit. Apply 5" reinforcement spacing limit.
- Australian Standards 5100 - stress-strain curve for reinforcement.
The default ULS stress-strain curve for reinforcement has changed for Australian Standards. The new default gives identical yield stress in tension and compression with 500 MPa at 0.25% strain. The previous default has been migrated to a curve option labeled "BS 5400", which is based upon the ULS stress strain curve defined in the UK Bridge Design code BS 5400.
- Creep calculation for long term elastic modulus in SLS Design Section analysis.
Additional detail has been added to the Design Section creep calculations for "drying shrinkage for age at first loading" and "age at time" according to EN1992-2. These two age parameters are added to the "Design Data for Serviceability Calculations" form. The parameter formerly labeled as "Age at loading" has been renamed as "Age of concrete". The effect of ambient temperature on creep has been corrected.
- Design Section concrete elastic modulus interpolation.
The Design Section Service Limit State now has an alternate option for interpolating elastic modulus. The calculation of the interpolated value is detailed in the results.

Primary Issues Resolved By This Release

Project / Structural Analysis
- Using the Line Beam analysis could cause Autodesk Structural Bridge Design to close unexpectedly.
- Reinforced concrete beam defined in a project following a Pre-stressed beam may include tendon data from the first beam.
- Traffic Loading on buried structures. There is an issue including surcharge loading in a traffic loading compilation.
- Application hangs on creating new section element if a linked design section is highlighted.
- Graphical display of pin joints incorrect for line girder analysis.
- Unable to create design section following offset beam creation.
Design Beams
- EU Pre-stressed Beam: Effective depth used for shear calculations may not be correct and needs detailing.
- AU: Unable to edit reinforcement cover for a Super-T cross section.
- Reinforced concrete beam: no section location in Differential temperature report.
- Incorrect external surface calculation for Open Super-T T2 with in-situ slab.
- AASHTO LRFD Post-tensioned Beam: Access violation can occur when accessing shear design.
- Post-tensioned beam: Analysis causes the application to become unresponsive.
- EU Steel composite Beam: Unable to perform differential temperature analysis.
- EU Reinforced concrete Beam: SLS stresses in graphic may differ from calculation report.
Design Sections
- Design Section Analysis: The heights to the resolved forces are incorrect where the NA is rotated.
- Incorrect creep coefficient in the calculation of SLS stresses for long term elastic modulus.
- Graphic for reverse differential temperature loads have wrong scaling for moments.
- Plastic section property calculation graphic not displayed correctly.
- Unable to do a general stress-strain interaction curve analysis.