• 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.

• 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.

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.
  

• Fixed bug in analysis of the iterative bar, namely, in the calculation of reactions Qy and Qz. There was incorrect calculation for the moment of inertia of the figure relative to an arbitrary point.

• For the iterative plate, the calculation of reactions by Qx and Qu is modified. The tangential strain XZ (YZ) along the section were redistributed in such a way that the sign of the integral reactions Qx (Qu) may not coincide with the sign of the initial tangential strain XZ (YZ).

• In cases of tension and moment (at small eccentricities), the location of the neutral line and slope angle are clarified.

• The state of equilibrium for the situation of pure bending is clarified. Sometimes, there were cases when a section fails before the ultimate force is reached.

• Fixed bug in generating the DCF table for a 3D thin-walled bar with warping of the section (FE 7).

• In analysis on fire resistance for plates (slabs, walls), fixed bug where the reinforcement was increased in case of one-sided heating.

• For expansive soils, clarified H_sh (expanding zone) when the option "Account of soil weight above elevation of load application" is selected.

• Fixed vector presentation of text when several screenshots are saved as a group.

• Modified algorithm for generating the punching shear contours.

• Fixed bug in defining the snap for rebars when the "From materials" option is selected in the settings for PR types.

• Fixed bug in identifying the PRB when the "All degrees of freedom (DOF)" option is selected.

• Clarified buckling analysis for the universal bar in the mode for the whole model.

• Fixed bug in the scale of text labels on the screenshots (also known as "posters") of the design model if the size of these screenshots was defined in the special dialog box.

• New option to automatically generate the icons for *.lir files (as well as *.spf, *.kcc files). Instead of seeing the typical application icon when you preview files in Explorer in medium, large, or extra-large icon modes, you will see a screenshot of the program window right before the file was saved. With the help of this feature, files can be distinguished more visually and uniquely, which makes it simpler to identify them and navigate their contents.

• When the input data is defined, you can now use a decimal point and a decimal comma as separators. The update will make it easier to use the program in many locations that accept decimal fractions in different formats.

  Moreover, there is an option to automatically replace the Cyrillic characters "e" and "E" with Latin ones; this avoids errors in the exponential form of numbers.

• New option to select the background colour of the working window of the program (White or Black). In this case the colour settings of objects, symbols and notes corresponding to the selected background are automatically replaced.

  Note.

  For the Black background, the ranges of the default colour palette for mosaic plots are selected so that the most extreme result (max for forces, reinforcement, or min for reserve factors) is displayed in a light colour that stands out against a dark background.

• New settings for measurement units of velocities and accelerations.

• A new option to select colour settings for interactive screenshots that are added to the Report Book. Either current colour settings or the default White colour standard may be applied.

  Moreover, it is now possible to customize the option "Return to view / Update with current colour settings or with colour settings saved in the screenshot".

  This option is helpful, for example, when you prepare screenshots for printing if they were taken with a background other than white or the colour standard Black. To do this, before you save the *.docx file, in the document window, apply the colour, format for numbers and font settings and then update with current settings.

  Note.

  An interactive screen copy of the design model window, or, in short, a window screen shot, is an image of the design model with associated data, namely, the settings of the design model image and the data for updating this image. Unlike a regular image, a window screen shot may be updated if the design model or its analysis results change.

• New option to organise the data in two columns in the "Metal elements (selection)" table. Now it is possible to sort (initially) the data in one column (in ascending/descending order), and then additional sorting by one of the columns - "groups of properties for subheading /element/ Unification group of element, structural element / selected section" (from A to Z/in ascending/descending order). In this case, the order of rows defined initially is saved.

• The "Structural element" column is added to the tables DCF and DCL characteristic (design, design long-term, normative, normative long-term). When appropriate check box is selected, the names of structural elements are displayed in the filter settings, so you could easly organise the data by this parameter.

• Optimised algorithm for calculating geometric properties with cross-sectional dimensions of tens of metres, for example, when calculating the stiffness centres of foundations.

• Enhanced smoothing function for results obtained on a sparce triangulation mesh.

• When opening problems saved in the version 2022, the option "Use the following over-strength value in analysis: minimal from all elements of FE model with the 'dissipative zone' parameter specified" is automatically activated.

• Enhanced algorithm for analysis of reinforcement with off-centre tension at small eccentricities (including by strength).

• Analysis of reinforcement is optimized with account of fire resistance (now it is possible to avoid the significant increase in reinforcement in individual elements where the compressive or least tensile reinforcement was increased in cases of extremely small compression zones of concrete).

• For the SP RK EN 1992-1-1:2004/2011, the condition "not less than 1.5 wall thickness" is added to the parameters for determining the min dimension of the end zone L_c of a plastic wall.

• For plates, in the analysis for width of crack propagation by Karpenko method, the value Ψ_s=1 may be fixed now.

• New method for calculation of subgrade modulus (Method 6); it is based on experimental data on the velocities of elastic wave propagation in soil layers located below the foundation base. The method is implemented according to NTP RK 08-01.2-2021. For the details, see the Knowledge Base.

• New calculation of the bearing capacity of piles with account of earthquake loads according to Section 11* of SP RK 5.01-103-2013 (rev. 2021).

• Added input data and algorithm for analysis of piles "Electric power line supports".

• Enhanced calculation of bored and drilled piles with bells in sandy soils:

  • If a pile with a bell cuts through a sandy soil layer, then a region of the side surface of the pile with zero soil resistance may appear above the bell. In the previous version, it was assumed that this area always appears when the pile cuts through the sandy soil. In the new version, this region appears only when the sandy soil is located above the pile bell within the height of an imaginary cone made by a line that touches the surface of the pile bell at an angle of φI / 2 to the pile axis. (φI is the angle of internal friction of the soil.)
  • When the height of this cone is calculated according to SP RK 5.01-103-2013 for the "spherical" shape of the pile bell, if dh < (db-D)/2 is specified, then now dh=(db-D)/2 will be accepted in the calculation.

• Optimised function for splitting the imported loads into load subgroups (required for correct determination of the design resistance of the soil R for individual foundations).

• For specific soils (expansive/swelling soils), the shrinkage zone H_sh (defined in the load parameters) is now always measured from the relief surface (more precisely, from the starting point of the diagram for the soil dead weight, i.e. if the "Account of soil weight above elevation of load application" check box is selected, then H_sh will be measured from the relief surface). Thus, if the shrinkage zone H_sh =5m and the foundation depth is 2m, then the shrinkage depth from drying of the expansive/swelling soil will be only 3m and only from the total stresses under the foundation base. And if the specified H_sh is less than the foundation depth, the settlement from the deformation at drying out of the swelling soil will be equal to zero. A detailed description of this calculation is available in the Knowledge Base.

• In all tabs of specific soils in the "Soil Properties" table, it is possible to arrange the P values (pressure) and nominal strain in ascending order. To avoid confusion in the calculation, you should always try to set this data in ascending order.

• If the swell shrinkage parameters (pressure-shrinkage) were specified with a single row (i.e., without the row 0=0), then linear interpolation is used to determine the pressure-shrinkage parameters from zero up to the specified values. If the active pressure exceeds the user-specified pressure, the last (user-defined) value is then considered a constant. Previously, for all shrinkage values from zero (including zero stresses), the single defined row shrinkage-pressure was assumed to be constant.

• When there is an overlap of loads with the "Results" attribute:

  • in the "Results at Point" dialog box, the results for the top load will be displayed.
  • in case there are piles, the elevation of the pile head is considered as the elevation of the load.

• "Results at point" dialog box. When generating diagrams and dimensions, the contrast colour is determined automatically depending on the background colour defined by the user in the input data.

• A "Geometric properties" buttons are added to the "Soil" ribbon tab on the "Tools" panel. You can use these buttons to measure distances, angles and areas in the SOIL system (the last option on the submenu, "For selected elements" enables you to calculate the areas of selected loads).

• Dynamics module (32) was updated in accordance with the requirements of "SNRA 20.04-2020. Building code, the Republic of Armenia. Design of structures for earthquake resistance. General rules".

• For iterative solids, information about the stress-strain state of the cross-section is added to evaluate the state of the main material and reinforcement.

• For nonlinear elastic springs (FE 295, 296), the final stiffnesses are calculated.

• For problems with time history analysis, there is a new option to display mosaic plots of accelerations and velocities for all nodes of the model in the global or local coordinate system. It is also possible to view animation of acceleration and velocity changes in time.

• For problems with time history analysis, the diagram of response spectrum is generated in the directions X, Y, Z, UX, UY, UZ on the basis of calculated accelerations for the certain node of the model.

• For a node with a specified accelerogram, there is a new option to generate acceleration and response spectrum graphs as the sum of the specified graph and the graph obtained from the analysis results.

• New option to select the presentation of mosaic plots for initial, final and relative values of nonlinear stiffnesses of plates and bars calculated as a result of the "NL Engineering 1" (iterative method for characteristic load case) and physically nonlinear analysis that simulates erection process ("Assemblage", "NL Engineering 2" (stepwise method for characteristic load case), "Progressive Collapse"). Mosaic plots of calculated final stiffnesses are added for 1-node and 2-node finite elements that simulate elastic springs with account of ultimate force (FE 251, 252, 255, 256, 261, 262, 265, 266) and nonlinear elastic springs (FE 295, 296).

• For physically nonlinear problems with iterative solids, there are options to view, evaluate and prepare documentation for the calculated parameters of the stress-strain state. In the "Section (state)" window, the following analysis results for the certain iterative solid are presented:

  • mosaic plot of normal stress in the main material /reinforcement of the solid;
  • mosaic plot of nominal strain in the main material /reinforcement of the solid;
  • mosaic plot of tangential stress τxy/ τxz/ τyz in the main material of the solid;
  • mosaic plot of nominal strain γxy/ γxz/ γyz in the main material of the solid.

• New modes for mosaic plots are implemented to evaluate the soil pressure:

  • Mosaic plot of soil pressure Rz (per r.m.) (N/m);
  • Mosaic plot of soil pressure Ry (per r.m.) (N/m);
  • Mosaic plot of soil pressure Rz/Bc (N/m^2);
  • Mosaic plot of soil pressure Ry/Hc (N/m^2).

  Note.

  Bc - width of settlement zone, dimension parallel to the Y1-axis of the bar (m);
  Hc - width of settlement zone, dimension parallel to the Z1-axis of the bar (m)

• A new type of title block is available for drawings:

• Options to add new rows and columns for the Table tool.

• In the pile schedule table in the "Group" mode, there is an option to compare and differ piles by length.

• New option to define the nonuniform load in arbitrary directions on a group of nodes/bars/plates; this option will be useful in specifying load from snow mound, nonuniform load on walls from soil pressure, etc.

• New option to move selected nodes to a specified node, to a specified line or to the axis of a chain of bars. This tool will be useful, for example, when correcting the triangulation of a network with plane FEs. It is also useful when models are imported with some deviation of bars from vertical or horizontal.

• New option: offsets for selected bars will be generated in the selected nodes.

• New options to visualize centres of forces according to calculated coordinates and load vectors according to calculated total loads, loads on fragment, inertial loads and weights of masses.

• New mode in which only model elements with assigned stiffness types / materials / types of pilot reinforcement (PR) highlighted in the corresponding lists will be displayed / fragmented. The fragmentation command may be applied to the whole model and to the current model fragment.

• For all types of loads (except for loads in time history analysis), it is possible to edit loads in groups. The user could modify the group of loads highlighted in the list. Only load parameters (values, snaps, etc.) may be modified. Load type, coordinate system, direction of load are not modified.

• New option to edit in groups the nonlinear stiffnesses for standard types of sections, plates, solids and stiffness of joint; option to edit in groups the linear stiffnesses and linear stiffnesses with modified values of stiffness properties (editable stiffnesses).

  Note.

  If several stiffnesses of the same type are highlighted in the list, you can edit them as a group. In this case, the input fields of the dialog box will contain only values that are the same for all stiffnesses in the group. When values of parameter (visible or hidden) are modified, they will be assigned to each of the stiffnesses in the group. When you modify the linear, editable, nonlinear stiffnesses (in any combination) in groups, it is not possible to modify parameters of editable and nonlinear stiffnesses.

• In the "Convert results to loads" dialog box, new option "Separate loads on fragment by load cases". When this option is selected, the calculated loads on the fragment (foundation) for each load case are converted into nodal loads and applied to the nodes in the initial load cases. In this case, new load cases are not created.

• It is allowed to create punching shear contours when the lower node of column (punching node) is below the slab and when the upper node of column (punching node) is above the slab.

• In the "Truss parameters" dialog box, there is a new way of dividing the bottom and top chord of the truss taking into account the location of the web. There is also a new parameter: "STC function". This parameter allows you to display the functional purpose of the truss element when the truss is exploded. It will also be displayed in the steel table.

• In the "Retaining wall" element, a new type of alignment for the analytical model (Left) is added. Also the "Arbitrary snap" option is added to the "Level snap" parameter.

• Fixed bug: the stairs did not reach the wall horizontally.

• Fixed bug: in selecting "Other" elements when using the "Select Up" command.

• Improved "Cancel" tool: fixed bug when properties are assigned to objects.

• The "Design options" dialog box is enhanced. If several design options with completely identical input data are specified in the dialog box, the program will check and display a warning about it.

• Enhanced algorithm for assigning more than one type of pilot reinforcement (PR) to columns.

• Modified and improved algorithms for finding intersections of objects:

• Corrected function: determining the interposition for a rib of a beam side surface and a rectangle of column surface. In some cases, unnecessary intersections were created.

• In the functions of intersection between real volumes, the search parameter assigned to elements is used. Until now, in some cases it was taken from the settings for the meshed model and the setting assigned to elements was ignored.

• Fixed for plates. The "Real volumes" worked only if they were assigned to both elements, otherwise the simplified method "By axial lines and volumes" was applied. Now if a "Real volumes" intersection option is defined for either of the two elements, this option will be applied.

• Corrected algorithm for intersection of surfaces. Fixed bug: creation of unnecessary PRBs. So, in some cases it was not possible to transfer the model to LIRA-FEM.

• Fixed bug: visual isolation of Shafts in the analytical presentation of the model. When activating the "Current storey" command, the shafts were displayed on all storeys.

• New option to define the input data for the dynamics module (32) of SNRA 20.04-2020, Republic of Armenia.

• Optimised process of load application to the object: fixed bug when the concentrated load applied to the column was not applied to the object in the meshed model.

• L and R search parameters are added for wall, column, beam and slab objects with the "Load" interpretation.

• Enhanced mode for visualisation of the current storey for space loads in the physical and analytical presentation of the model.

• Fixed bug: incorrect designation for direction of the "Soil pressure" in the architectural and meshed models.

• Clarified option to transfer the uniformly distributed loads on bars when the "By whole finite element" option is selected.

• Added option: to define multiple special loads for elements rather than one as in previous releases of the program.

• Enhanced algorithm for distribution of dead weight of elements to different load cases. Unlike previous versions, when the load from dead weight could only be placed into a duplicate dead weight load case, it is now possible to place the load from dead weight into any load case.

• In the "Create new meshed model" dialog box, there is a new command that allows you to customize parameters of a new meshed model. The previously specified data may be saved.

• The transfer of the meshed model from LIRA-CAD module to VISOR module is accelerated. The speed of saving option varies and depends on the content of the model. On average, the meshed model is transferred to VISOR module 3-5 times faster than in previous versions of LIRA-CAD module.

• Added option: to match coordinates of object snap by X, Y, Z and rotation angle of the structures relative to true north.

• Fixed bug: related to wall cleanup after IFC import.

• Fixed bug: when importing IFC files, option to recognise objects of IfcStair type and convert them into stairs objects.

• Fixed bug: after importing IFC files, displacement of grid lines relative to the working plane on the storey.

• When importing an IFC for elements in which the material name "Steel" is used, the matching with the Steel Structures material is performed.

• When importing an IFC, the line "Material not defined" is displayed for elements that do not have a material defined in the IFC file so that a matching to LIRA-CAD material can be done.

• Enhanced option: to recognize the openings in slabs when importing IFC files.

• Fixed bug: in option to interpret elements when importing IFC files.

• Fixed bug: in saving the import settings for the IFC file when Ukrainian, English and Polish languages are selected.

• For models from Tekla, as well as LiraKM and IFC files, model objects are matched by the Guid property.

• Fixed bug: in generation of inclined slabs when importing the model from LiraKM file.

• Improved algorithm for slab recognition when importing DXF/DWG underlays through nodes.

• New button in the LIRA-CAD (Generator) window to activate the Update underlay dialog box for simultaneous updating of several import nodes at once.

• Restored option: to create an opening in the load for the Load_S node (creating the surface loads on slab)

• 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.

One of the key features of the program is the option to generate unified structural elements based on theoretical reinforcement obtained from strength analysis. This option is now available for various types of elements, including:

• floor slab
• foundation slab
• column
• beam
• stairs.

In the new version of the program this functionality is expanded, and now unification can also be performed for reinforced concrete walls. The wall unification is similar to the unification of framework elements, which is already familiar to users. The interface of the working window is divided into three zones: the list of all walls with descriptions of their properties is presented on the left, the schematic presentation of the wall with reinforcement contour plots is displayed on the right, and on the top there is a filter that makes it easy to browse through the list of walls in the project.

This tool is one more step in helping engineers easily process large amounts of information about walls. It enables you to unify walls, taking into account not only the geometrical properties of the elements and their location in the framework but also the results obtained in the analysis of reinforcement carried out for these elements.

The amount of reinforcing steel is one of the key technical and financial indicators of a building project. At the stage of the architectural model, the consumption of reinforcing steel may be obtained (in detail) in LIRA-CAD module version 2024

The Total list of reinforcement command is available on the View tab, on the Information panel, see the Schedule menu.

When you activate this command, the Total list of reinforcement dialog box is displayed. In tabular form, you will see the consumption of reinforcement presented in detail by rebar diameter and concrete volume.

The geometric properties of the structure (the length, height, thickness, and section dimensions) are taken into account when calculating the actual amount of concrete. It also takes into account situations where element models overlap, for example, beams in a floor slab (the volume of the part of the beam immersed in the slab is automatically subtracted from the volume of the slab). 

The quantity of reinforcement in a structure can be represented by weight or length (in tonnes or in r.m.). 

The most accurate information about the consumption of reinforcement may be obtained based on the following data:

• strength analysis and selected theoretical reinforcement;
• reinforcement model created in LIRA-CAD (RC) module:
  • for bars, according to types of reinforcement (TR);
  • according to the type of pilot reinforcement (PR type).

In the "Total list of reinforcement" dialog box, it is possible to filter the items in the list by layers, storeys, objects or highlighted rows.

In LIRA-CAD module version 2024, it is possible to create the documentation view "Pile arrangement". In this view, all piles in the building are shown with sign notation. Optionally, each pile can be labelled with its pile number and the elevation of the pile head. 

Based on the provided data, a table with "List of piles" can be created for the drawing with "Pile arrangement". This table will contain brief but necessary information about the piles, including the following parameters:

• Number of piles of standard type;

• Symbols (sign notation) on the drawing;

• Length of piles;

• Elevation of the pile head.

This table will be a useful tool to organize the data regarding the piles available for the project.