Autodesk Robot Structural Analysis 2026 HF1

Enhancements

Miscellaneous
- Implemented a graphical display of the load number for incorrectly applied loads.
- Enabled possibility of setting design methods in steel design using API for EN 1993.
- Enabled resizing of "Calculation Messages" and "Structure verification" dialogs.
- Enhanced saving time of models containing extruded arcs.
Loads and Combinations
- Inactive members are not involved in transferring loads from claddings.
- A mechanism has been introduced to not show warnings of incorrectly applied loads if they are shorter than the tolerance of structure model generation.
Analysis & Results
- Added a warning in situations of incorrectly calculated tolerance.
- Enhanced calculation of inertia moments for converted masses.
- Enhanced graphical display of drift results for diagrams for buildings.
Reinforced Concrete Design
- Enhanced program stability when selecting untypical stirrups in the RC beam design module.
Steel Design for members
- Enhanced stability of software when creating calculation notes.
Revit – Robot Structural Analysis link
- Enhanced transfer of RSA non-hosted area loads from Robot to Revit.
- Implemented Revit Element ID transfer to Robot Name parameter for better element identification.
- Enhanced loads coordinate system and "projected" parameter transfer.
- Enabled transfer of Analytical openings between Revit and Robot Structural Analysis.

Issues Resolved

Miscellaneous
- Corrected behavior of resetting toolbars layout after minimization.
- Corrected generation of section design and detailed steel design calculation notes to avoid "Server busy" warning.
- Improved the stability of the program when selecting objects using the Tab button.
- Enhanced Robot stability when splitting members by the intersection method with linear loads of type 2p assigned.
Loads and Combinations
- Improved stability of the Robot in the moving loads dialog.
- Corrected automatic combination behavior for NBCC 2020 design code when combinations were not generated while live load case was not accompanied by a wind or snow load case.
- Improved load behavior when merging nodes with rigid links.
- Corrected display of hydrostatic loads for panels created with solid modeler.
Analysis & Results
- Corrected application of planar load on contour when changing from manual panel selection to automatic.
- Improved gravity center calculation for floors without finite elements.
- Improved display of labels for exact deformation envelope results.
Corrected reduced results calculation for panels.
- Improved the display of internal force values by increasing the priority of values other than 0.
- Corrected maximum displacement value display for exact deformation for envelopes.
- Corrected the calculation of response for the Harmonic in the Frequency Domain (FRF) analysis when damping is set to a different value for each mode.
- Corrected tributary load distribution for panels adjacent to a meshed diaphragm.
- Corrected inaccurate assignment of weight to an adjacent story in specific cases.
- Corrected display of bending moments for beams in Load Take Down analysis.
- Corrected Inertia Body forces generation for panel objects with the Diaphragm calculation model.
- Corrected Inertia Body forces for masses converted from planar loads for panel objects with the Diaphragm calculation model.
- Corrected Inertia Body forces for masses converted from self-weight for panel objects with the Finite Elements calculation model.
- Corrected calculation of sums of modes for Canadian seismic code NBC 2015.
- Corrected concentrated load values presentation on beams for LTD analysis.
- Corrected analysis and interpretation of directions of tangent elastic ground reactions for panels when the local Z axis for panels is flipped.
- Changed interpretation of results for Harmonic in the Frequency Domain (FRF) analysis with damping. Results for each node such as displacement and reactions are saved for maximum displacement within calculated phases in each Harmonic analysis time step. Thus internal forces, moments, or deformations are not available in bars since the results for nodes come from different phases.
- Corrected the diagrams of internal forces and moments on bars for harmonic analysis where inertia forces were not considered.
- Corrected values of reactions on the elastic support in harmonic analysis where forces were not accumulated.
- Enhanced stability of multithreaded solver for convergence of nonlinear P-delta analysis.
Reinforced Concrete Design
- Corrected behavior of removing user-defined buckling labels in provided reinforcement modules.
- Corrected calculation of required reinforcement when a beam on a slab is considered as T section with slab flanges, so the flange width was incorrectly shortened by the beam width.
- Improved "Beta" parameter description for French beam design FFB Recommendations in the calculation note.
- Improved the calculation note content with detailed reference to the code concerning uplift condition in serviceability state for geotechnical Foundation design according to NF P 9-261 standard.
- Allowed excluding the sliding condition from EN 1997 for foundation verification.
- Improved punching reinforcement presentation for EN 1992 in the calculation dialog and note.
- Corrected FFB deflection value definition and display for beam design with French design code.
- Corrected presentation of the decisive combination for concrete column design.
Prevented loss of results when designing spread footings.
- Corrected the location of bars in the pier of the spread footing to comply with the settings of the upper cover.
- Corrected functionality of manual edition of reinforcement bars position while moved elements where incorrectly copied or deleted.
- Corrected minimum reinforcement bars spacing for punching verification in slabs according to EN 1992-1-1 design code.
Steel Design for members
- Improved calculation of parameter alfa for SHS hollow sections for particular load cases according to EN 1993-1-1:2005.
- Corrected formulas 5.12 and 5.13 in Japanese code AIJ - ASD 05.
- Corrected more detrimental case selection for a situation with camber uplift for NF EN 1993-1-1.
- Implemented automatic equivalent bow imperfection for flexural buckling in global member analysis according to the steel design code EN 1993-1-1:2022.
Steel Design for connections
- Corrected weld resistance calculation for beam-to-beam (web) connection according to EN 1993-1-8:2005/AC:2009.
- Corrected effective length in column base connection with 6 anchors.
- Corrected translations of bolt diameter in steel connection module.
Revit – Robot Structural Analysis link
- Improved hosted area load transfer by unifying load type transfer between Revit and Robot Structural Analysis.
- Improved transfer of linear loads from Robot Structural Analysis to Revit.
- Corrected an issue when a linear load was duplicated during roundtrip transfer from Robot Structural Analysis to Revit.
- Corrected load transfer for load cases with specific diacritics between Revit and Robot Structural Analysis.
Robot Structural Analysis – Advanced Steel link
- Enabled transfer of polybeams from Advance Steel to Robot.
Help & User Documentation
- Corrected help link help web page for Seismic - Australian Code AS 1170-4:2007.
- Corrected formulas in help topic concerning calculation of stiffness matrix for hollow slab orthotropy.
- Corrected an issue when a linear load was duplicated during roundtrip transfer from Robot Structural Analysis to Revit.
- Improved help topic explaining the behavior of user defined set of parameters for provided reinforcement calculation.