• Refined calculation of the stress-strain state in iterative nonlinear solids with the specified concrete and reinforcing materials.

• Fixed bug: possible failure of the program when the boreholes were added.

• Fixed bug: possible failure of the program when a design model that contains PRB was exported to a *.sli file.

• Modified settings: measurement units for mosaic plots of pile pressure on soil.

• Modified mosaic plots: the output data for individual check of steel beams with a channel cross-section.

• Modified visualization: rotation of metal cross-sections.

• Restored speed of pile calculation by the model of equivalent pile foundation.

• Modified encoding for some characters in the temperature distribution table generated in *.csv format.

• Fixed bug: the warning messages were duplicated when the standard stiffness types were modified in group.

• The "METEOR" system (Problem Integration): modified values of combination coefficients for the "Inactive" load type.

• Restored option to open the nonlinear stress-strain diagrams for materials from the *.nll file.

• For super-element problems, modified analysis and output of reinforcement for RC bars.

• Modified selection of steel box cross-sections; clarified check for local buckling.

• Fixed bug: may occur in check of deflections for steel beams calculated according to SP RK EN 1993-1-1:2005/2011.

• In the analysis results of DCL(c), clarified DCL numbers displayed in standard tables.

• Fixed bug: the behaviour of the "Copy Loads" dialog box when the Enter key is pressed.

• Improvements in IFC import

• Fixed bug: beam geometry was transmitted incorrectly.

• Import of inclined slabs is enhanced.

• For columns/beams with a steel cross-section, the "Steel Column/Beam" object is created and the "Steel Structures" material is automatically assigned.

• Fixed bug: zero-length lines appeared in a project when the axes were imported.

• Fixed bug: in changing the size of openings; it occurred when the model was saved for IfcDoor and IfcWindow object types.

• Improved option to create the storeys by grid lines and/or slabs if storeys are not defined in the IFC file.

• The work with the "Import IFC - Settings" dialog box is improved:

• Fixed bug: the dialog box was closed when you switched to the "Materials" tab.

• For objects that do not have an assigned material, on the "Materials" tab, the "not defined" line is now displayed and a default material may be assigned to such objects.

• Added parameters for the "Geometric location of the site": X, Y, Z coordinates (m) and rotation angle (°).

• Import KM: Fixed bug in creating an inclined slab in the physical model.
  

• Import DWG: For objects generated along a closed contour, there is a new option to close the contour segment if the contour was broken in the original model.

• Export IFC: Added option to export columns and capitals.

• Updated plugin for Rhino 7 and Rhino 8.

• Fixed bug: when the surface load is generated in the Node, the openings located inside the load were lost.

• Enhanced tool for converting "Other" objects into a "Column" structural object.

• Restored option to assign design parameters to steel elements when preparing a model.

• Enhanced algorithm for uniting slabs with different thicknesses. When the command is activated, a new slab with thickenings is created.

• New option to view links between loads and other objects.

• Modified algorithm for generating a perfectly rigid body (PRB) between the column and wall objects.

• Fixed bug: when an analytical contour above a wall was modified, the contour became an opening.

• Fixed bug: in the "Parameters of Analytical Model" dialog box for stairs, restored option to assign a support to an asymmetrical part of a staircase if the "Symmetry of boundary conditions" option was enabled.

• Fixed bug: when an opening was added to a slab, additional triangulation lines were not transmitted to the design model.

• The "Eye-Drop Properties" tool is improved.

• Fixed bug: properties assigned to piles were lost when a project file was saved or opened.

• Fixed bug: incorrect functionality of the "Undo" command after the "Fill pattern for opening" command was activated.

• Enhanced option to create a contour by segments (mode).

• Fixed bug: (when copying a wall with assigned bar analogues) the stiffnesses of the bar analogues were duplicated in the VISOR graphical environment.

• Fixed bug: in copying triangulation lines and points on the slab.

• Fixed bug: when trusses were copied, the design parameters assigned to elements disappeared.

• Fixed bug: the load on slabs was applied by a space that does not intersect them.

• Fixed bug: in the properties of partitions, the assigned load cases were not saved when the meshed model was generated.

• When bar analogues are created for walls with openings, the local Z1-axis is now oriented in the plane of the wall.

• Fixed bug: tolerance parameters were duplicated in properties of the project.

Important.
For nonuniform loads created as a load on a group of bars or plates, the correct load type is transferred to the solver (the bug appeared only in LIRA-SAPR 2024 R2). This bug led to an incorrect calculation of load intensity.

• Fixed bug: in the calculation of compensating loads by Qx and Qz for the 3-node FE of the joint (FE 258). This situation may cause residual errors in the solution during iterative calculation.

• In the SOIL system, the subsidence deformations are not considered for collapsible soils if the initial subsidence pressure Psl is higher than the total stress P.

• Clarified generation of contour plots for C1 modulus in case subgrade modulus is calculated by Method 6.

• Fixed bug: in updating the list of STC materials when the elements are selected.

• Fixed: an inaccuracy when generating the response spectrum for the dynamic load Accelerogram (dynamic module 27).

• Fixed: a possible error in generating the text tables with the results by DCL with a large number of DCL combinations.

• Fixed bug: in saving the *.lir file for problems where nonlinear load histories and DCF calculation are defined.

• Fixed bug: in presentation of measurement units for a specified Req in the Pile Groups dialog box.

• Clarified analysis of reinforcement by serviceability limit state.
  

• Fixed bug: in calculating DCF for punching shear contours when normative loads are used in the design model.
  

• Fixed bug: design model of a beam was generated outside the physical model.

• Fixed bug: program failure when generating the design model.

• Fixed bug: it was impossible to generate a slab with the Ellipse method for generation.

• Fixed bug: it was impossible to modify Parameters of opening when a group of objects was modified.

• Fixed bug: inconsistency between assemblage stages when transferring from LIRA-CAD module to VISOR module in the LIRA-FEM software.

• Fixed bug: in displaying the beam system in physical representation of the model.

• Fixed bug: possible program failure in the Library of joints dialog box.
  

• Restored option: on the Results ribbon tab, buttons to display the mosaic plot for soil pressure Ry and Rz.
• Fixed bug: a possible program failure when working with the Stiffness and materials dialog box in case a lot of steel sections (more than a thousand types of stiffnesses) are specified in the project.
• Modified recognizing the class of steel cross-section of steel bar for EN 1993-1-1:2005/AC:2009, clarified tracing routine in case of earthquake loads.
• In analysis of steel sections by DBN B.2.6-198:2014, new option to compute a column as a flexural element (depending on the set of design combinations).
• Fixed bug: a possible program failure when the loads are copied from the current element to the selected element in problems with assemblage.
• Modified presentation of perfectly rigid bodies (PRB) in assemblage problems. If the current assemblage stage contains elements in which nodes belong to PRBs, then all nodes of such PRBs will be displayed on the model (including nodes of elements that are not assembled).
• In the input table for DCL, corrected undo/redo options for the specified combination coefficients.
• In iterative calculation of subgrade modulus C1/C2 by the soil model, the width of settlement zone for bar elements is clarified.
• Fixed bug in presentation of some dialog boxes in case of non-standard settings for custom scale of interface elements.
• Restored option to generate the text tables with analysis results for reinforcement in *.txt and *.html formats.
• For iterative FEs, restored mosaic plots of cross-sectional state by integration steps in problems with time history analysis.
• In the Information about node window, fixed conversion of measurement units when acceleration for wind pulsation is displayed.
• For problems with nonlinear stress-strain diagrams with a falling branch, the strength analysis for sections is clarified on the falling part of such diagram.
• In the Reinforcement pattern dialog box, for the element type Bar, enhanced presentation of the cross-section display and information about the selected reinforcement.
• Fixed bug: a possible program failure when creating hinges in a structural element that consists of only one FE.
• Restored connection with the analysis results by DCL in case the DCL table is opened (without editing and saving) if more than one DCL table is defined.
• Fixed bug in modifying the table of dynamic load cases when more than 50 dynamic load cases are defined in the table.
• In the integrated problem obtained after analysis in the METEOR (Problem Integration) system by the DCL(c), corrected option to save the information on DCL coefficients for combinations that contain dynamics.
• In analysis of steel bars by EN 1993-1-1:2005/AC:2009, fixed bug in calculation of interaction coefficients for buckling.
• Fixed calculation for the rotation angle of a surface load created in VISOR module when such a load is transferred to LIRA-CAD module.

• Fixed bug: a part of the model located below the Meshed model in the Project Structure window (new buildings created after generation of the meshed model) was not displayed. Also, when opening files from previous versions, this error could cause a situation where some data may be hidden (the reinforcement views in the Views window and the drawing sheets in the Sheets window).
• Modified settings of the leader for reinforcement zones on the drawing, namely, the spacing of rebars is displayed under the leader line.
• New option to copy the cages of transverse reinforcement on the view of slab reinforcement.
• In the view for column reinforcement, for sectional elevation it is now possible to modify the pattern of transverse reinforcement manually (with the Move vertex command). At any time, you can return to the reinforcement pattern suggested by the program
• Fixed bug: incorrect line Precast units in the schedule for reinforcement in shear wall.
• Import of IFC models:
  • enhanced algorithm for generating openings in walls;
  • fixed bug: in the algorithm for generating storeys by slabs (all walls were placed at the 0.00 elevation);
  • enhanced algorithm for recognizing and converting objects into beams: sections are assigned correctly to such elements.
• Export of IFC model, fixed bug: all vertical objects were located on the same storey
• Enhanced algorithm for importing a model from DWG format (single file import technology), fixed bug in generating storeys that do not contain structural objects.
• When working with nodes, the following bugs are fixed:
  • storey elevation is relocated when DWG files are imported;
  • when a line of a wall segment was projected onto a surface, the line was generated incorrectly;
  • the generated surface was not properly assigned to the storey;
  • no opening was generated in the floor slab.
• Fixed bug: incorrect generation of the capitals’ contour taking into account the perimeter of the floor slab.
• Fixed bug: in generating the foundation slabs and floor slabs using pre-defined closed polylines.
• Fixed bug: when the model is transferred from LIRA-CAD module to VISOR module, the beam sections were rotated by 90 degrees.
• Fixed bug: visualization of hinge support in elements.
• When working with the Block tool, the following options are improved:
  • transferring properties via the Eye-drop properties tool;
  • visualization of objects that are added to the block.
• Fixed bug: incorrect generation of loads of the same intensity in the Slab interpreted as load and Loads from space tools.

• enhanced option to recognize which floor belongs to which object;
• enhanced algorithm for recognizing and converting objects into elements that are used in LIRA-CAD module, namely: columns, beams, walls, slabs.
• For import from Autodesk Revit 2024:
• Account of new options to create loads uniformly distributed over the area and transfer them from Revit 2024 to LIRA-CAD module 2024;
• Fixed bug: incorrect slab geometry after importing Revit model with *.LiraKM format.
• The Import Floor Plans dialog box:
• by default, the section for columns made of reinforced concrete material is now shown as reinforced concrete section (previously metal section was shown);
• enhanced algorithm for selecting the type of created object by layer name from *.dwg models;
• enhanced generation of stairs and openings in slabs.
• Fixed bug: in exporting model from LIRA-CAD module to *.SAF format.
• Physical model
• fixed bug: the load properties were copied incorrectly when the Obtain parameters tool is applied;
• the user-defined colour of the loads is retained when the load is transferred to another load case;
• enhanced generation of analytical model for single-flight staircases on the stair carriages;
• enhanced generation of triangulation points in the support zone of the column located near the outer edge of the slab and near the holes created with the Shaft tool;
• fixed: in some cases it was not possible to create a punching shear contour next to holes;
• enhanced generation of holes in slabs that intersect with the shaft;
• enhanced generation of openings in walls from ventilation ducts;
• enhanced option to transfer openings between buildings;
• fixed: opening was generated with dimensions different from user-defined ones;
• improved conversion of objects Other to objects Partition;
• fixed: when the objects with the specified Relocation from bottom level value are copied, these objects were created in new location but with wrong vertical relocation;
• fixed: in the Ramp Cleanup tool, enhanced algorithm for trimming to ensure that the ramp and curved wall behave together;
• fixed: presentation of the extra auxiliary points for elements with rotation angle of the cross-section;
• improved Model Check tool: check for intersection of wall volumes is more correct;
• optimized: reloading of the Project Structure in cases when the snow load is selected in the analytical view and you zoom, pan or rotate the model;
• improved Convert Objects node: options to transform objects (Beam type into Ventilation duct type) more correctly;
• improved node Symmetry of objects with respect to the plane / line: the symmetry plane can be used as a Hatching object.

• Meshed model
• new account of the storey level when generating the meshed model for the retaining wall (previously it was generated in the zero level of the project);
• optimized algorithm for triangulation of plate elements;
• fixed bug: rotation of cross-section in bars both in the meshed model and in VISOR module;
• fixed bug: it was not possible to save user-defined design materials for concrete and reinforcing steel;
• fixed bug: in transferring loads from LIRA-CAD module to VISOR module of the LIRA-FEM program.