Features What's new in

Building codes for Republic of Kazakhstan

• Added: option to define increasing factors Fvk (sect. 7.6.5, 7.6.6 SP RK 2.03-30-2017 and sect. 6.4.1, 6.4.2 NTP RK 08-01.2-2021) for all earthquake dynamic modules (except non-earthquake modules 21, 22, 23, 24, 28 and experimental modules 38,37,46).

Important: revision of forces with the factor Fvk does not affect the equilibrium at nodes during calculation of load on fragment.

• Dynamic module (61) SP RK EN 1998-1:2004/2012, NTP RK 08-01.1-2021 (Kazakhstan): coefficients of responsibility along the vertical/horizontal are added.

• Dynamic module (60) 'Earthquake analysis by SP RK 2.03-30-2017 (Kazakhstan) and SN KR 20-02:2018, (Kyrgyzstan)', coefficients of responsibility along the vertical/horizontal are equal to 1.0 by default.
• New option to create combinations of loads according to modifications mentioned in sect.2.2.3.2 NP to SP RK EN 1990:2002+A1:2005/2011.

Important: when this option is used, the program generates combinations of dead load cases by formula (6.10a) and combinations of loads for transitive design cases by formula (6.10b).

• Clarified warning messages in analysis of reinforcement according to SP RK EN 1992-1-1:2004/2011.
• Clarified stability analysis for the pipe by SP RK EN 1993-1-1:2005/2011.
• Modified: presentation of the output data along the length of structural element in the local mode of steel analysis by SP RK EN 1993-1-1:2005/2011.
• Corrected: calculation of forces in element of the model when components of harmonic load is considered for SP RK EN 1990:2002+A1:2005/2011.
• Corrected: option to save the data in the DCL table in case the type of combination is changed (with no modification to combination coefficients).

LIRA-SAPR Analysis Client/Server

• New 'Results' button to open the folder where the file with modified input data (obtained together with the output data) is located.

Intuitive graphic environment

• When bar analogues (BA) are generated with auto-recognition of the cross-section shape, the program will not generate BA in case the cross-section was not assigned to initial FE (appropriate check is added). If bar analogue is generated without recognition of section, it will be generated by configuration of initial elements even if stiffness is not assigned to such elements.
• In problems with solid elements, possible program crash (in generating contour plots with analysis results at the specified section of design model) is eliminated.
• Restored: option to analyse steel structures for models (where the file name exceeds 30 characters) imported from SAPFIR module and analysed in VISOR-SAPR module.
• For projects created with input tables, corrected option to save to *.lir file the steel stiffness values defined in the 'Stiffnesses' input table. Error occurred when the specified stiffness values were activated with Undo/Redo commands.
• Restored: option to generate tables in the Report Book with description of RC materials in case there is no continuous numbering of parameters in the list (that is, there are gaps or numbers of parameters are not in order).
• Enhanced generation of tables (*.ТХТ and *.HTML) with output data for analysis of reinforcement.
• Fixed: possible program crash when the contour is generated with the 'Triangulation' dialog box in case there are coincident nodes in the contour.
• Fixed: possible program crash when the model is merged from the submodels.
• Options to unselect nodes/elements and to cancel the chain of dimensions are separated in the 'Geometric properties' tool. The first Esc will unselect nodes/elements while the second Esc will cancel the chain of dimensions.
• Added: option to analyse steel structures according to results of DCF for problems with the history of nonlinear load cases.
• Fixed: possible error to input incorrect value when you define ranges for a certain colour palette.
• For steel stiffness with variable section, added option to display information about assigned materials on mosaic plot of materials for steel structures.
• For steel cross-sections defined with standard types of stiffness (with no reference to steel tables), correct value of the unit weight is added.
• When the dead weight is generated for the steel elements, unit weight q defined on the 'Stiffness' tab in the 'Steel cross-section' dialog box is used rather than the value from steel table.
• When steel structures are analysed by histories of nonlinear load cases, in the 'Analysis parameters (Metal, RC)' (on the 'Load factors' tab) the user will see default names for load cases - 'History of nonlinear load cases 1', 'History of nonlinear load cases 2', etc. instead of the empty names of load cases.
• Enhanced presentation for the steel section of type 'I-section of three sheets' (with no reference to steel table) when stiffnesses are displayed in the mode 'Presentation with account of assigned sections' in VISOR-SAPR module and in Cross-section Design Toolkit module.
• Fixed: possible program crash when the 'Geometric properties' tool is used when the specified chains of dimensions are cancelled.
• For problems with super-elements, enhanced tool 'Information about element' when the data about initial and selected profile is presented in the mode of steel structures.
• Fixed: option to paste the array of numbers into DCL table through the Clipboard in case when combination coefficients have values <0.
  

SOIL

• In problems of SOIL system, enhanced generation of the colour palette for mosaic plot of loads.
• When mean modulus of elasticity (Emean) for soil is computed by 'Method 2', settlements Sc (compression of pile shaft) and Sp (punching shear with pile toe of equivalent foundation base) are considered similar to calculation by 'Method 1'.
• In the SOIL system, during analysis by the model of equivalent foundation, default distance to the edge of equivalent foundation is modified from '2D' to '1.5D'.
• Fixed: possible program crash when you switch to the soil model window after the 'Remove soil model' command in the 'Soil model' dialog box.
• When calculating hd (effective depth up to which soil resistance along the side surface is not considered) in pile stiffnesses by DCL, the earthquake is considered in case the 'Earthquake' load case type is available in combinations (not by dynamic load case). This change makes it possible to cover cases where the earthquake load is defined as a static load case, e.g. nodal inertial forces.
• By default, the coordinate system window is hidden to save the workspace.

Steel structures

• Restored: option to launch the steel analysis in case parameter of steel material 'Steel table' is defined as 'In the same file as shapes'.
• Enhanced algorithm for numerical selection of the built-up steel I-section.
• For steel elements of type 'universal bar', defined parameters (ultimate deflection, slenderness ratio, effective length) may be displayed as mosaic plots.
• In analysis of steel structures for specific combinations, the program selects deflections where max utilization ratio of the steel section.
• In stability analysis of steel sections, possible too high values of utilization ratio of the section are fixed.
• Fixed: option to save the file with output data for analysis of the truss joint from pipes of rectangular section.
• Added: option to analyse steel structures by results of DCF for problems with history of nonlinear load cases.

RC structures

• In parameters of RC materials for plates, analysis 'by Wood theory' is defined by default. For Eurocode and similar building codes, analysis of reinforcement is always carried out 'by Wood theory'.
• In analysis of reinforcement in plates by Karpenko method, arrangement of reinforcement is clarified in certain cases.
• When you define types of pilot reinforcement (PR) for plates, longitudinal reinforcement is clarified on schematic presentation in case of large areas of total reinforcement.
• When you define RC materials for DBN B.2.6-98:2009, list of classes for composite reinforcement is updated according to the specified parameters of such reinforcement.

Steel rolled shapes

• New option to add steel tables for pipes and plates from the 'Steel cross-section' dialog box in case the 'Hidden' option is defined for the file of steel table (that is, steel tables of previous versions).

Fire resistance

• When the output data for analysis on fire resistance is visualized in 'Fire resistance of element' window, reference of temperature values to appropriate rebars is clarified.
• In analysis of steel structures with account of fire resistance, position of local axes Y1/Z1 are clarified as well as limit values for slenderness ratio.
• Added: option to identify when it is not possible to determine the depth of heating in concrete during analysis on fire resistance.

SAPFIR-Structures

• Restored option: objects included into block of SAPFIR physical model may be transferred to design model.
• Corrected: property 'Design parameters – Applied steel' for the steel beams is not duplicated in the 'Filter by parameters' dialog box.
• Enhanced option for slab parameter 'Sum up with dead weight'; it will enable the user to sum up the dead load on the slab with the dead weight of the slab.
• Restored: option to cancel the manual cleanup of walls and columns for the slab.

SAPFIR-GENERATOR

• Corrected: user-defined node Pyton is not duplicated when it is saved to the toolbar.

SAPFIR-RC

• In the reinforcement model of the diaphragm, new option to place an additional step of rebars at the edge of the reinforcement zone if the zero distance is defined for rebars on the opposite side of reinforcement zone.

SAPFIR-Structures

• Restored option: objects included into block of SAPFIR physical model may be transferred to design model.
• Corrected: property 'Design parameters – Applied steel' for the steel beams is not duplicated in the 'Filter by parameters' dialog box.
• Enhanced option for slab parameter 'Sum up with dead weight'; it will enable the user to sum up the dead load on the slab with the dead weight of the slab.
• Restored: option to cancel the manual cleanup of walls and columns for the slab.

SAPFIR-GENERATOR

• Corrected: user-defined node Pyton is not duplicated when it is saved to the toolbar.

SAPFIR-RC

• In the reinforcement model of the diaphragm, new option to place an additional step of rebars at the edge of the reinforcement zone if the zero distance is defined for rebars on the opposite side of reinforcement zone.

• Enhanced import of DXF drawings in case the drawing contains blocks (overlapping text is corrected, enhanced conversion of NURBS curves into Bezier curves).
• When the model generated by DXF underlay is updated, for beams the current section is retained.
  
• Import of IFC file:
  

  • corrected error in import of columns for which Boolean operations were performed;

  • added import of premises for the updatable node in the SAPFIR-GENERATOR system.

• Pulgin for Grasshopper is available in English and Ukrainian, restored compatibility with previous versions of the program.
  
• In problems with DCL according to SP RK EN 1990:2002+A1:2005/2011 (Republic of Kazakhstan), for forces by DCL, corrected difference in values presented on diagrams and in the information about element.
  
• In the 'Colour grade visualuzation' dialog box, on the 'Colours' tab, restored presentation of colours for the specified ranges.
  
• Tables of unified forces may be generated even if not all elements of the unification groups are selected.
  
• Added option: export of the output data from analysis of reinforcement for physically nonlinear bars and plates into SAPFIR-RC module.
• Accuracy in solving quadrangular and triangular FE of shell with the 6th DOF at the node is corrected depending on the FE shape.
• Restored analysis of problems with 'NL Engineering 1' according to SP 63.13330.2012/2018.
• Restored analysis of reinforcement according to SP RK EN 1992-1-1:2004/2011.
  
• For steel sections 'the 3rd class' (that behaves in elastic stage) clarified analysis on fire resistance in case of torsion moment.
  
• Corrected presentation of the height elevation for load when the load from the foundation pit is converted to the imported load.
  
• Clarified check for application of loads with attribute "σzy".
  
• For problems of SOIL system, with the option 'Calculate on enlarged grid', the added option to check points located outside the load.
  
• In the SOIL system, new option to show/hide symbolic presentation of piles and their numbers. To find out appropriate commands, on the VIEW menu, point to 'Show objects'.
• For calculation of subgrade moduli, the building code SP RK 5.01-102-2013 is supported.
  
• LIRA-SAPR 'Analysis Client/Server' is speeded up in case of large number of problems that are waiting in the queue for analysis.

SAPFIR-Structures

• Corrected bug: inversion of walls that contain openings if the analytical model of the wall was aligned manually.
  
• Added option not to transfer dynamic load cases to VISOR-SAPR module, just clear appropriate check boxes in the 'Edit load cases' dialog box.
  
• Corrected bug in the 'Cut off with box' command. 
  
• Enhanced option to copy (by storeys) the openings with enclosed contours (when one opening is located inside the other) in floor slabs.
• Corrected value of load in the meshed model for the wall with interpretation 'Load' if the opening with defined unit weight is defined for the wall.

SAPFIR-Structures

• Corrected bug: inversion of walls that contain openings if the analytical model of the wall was aligned manually.
  
• Added option not to transfer dynamic load cases to VISOR-SAPR module, just clear appropriate check boxes in the 'Edit load cases' dialog box.
  
• Corrected bug in the 'Cut off with box' command. 
  
• Enhanced option to copy (by storeys) the openings with enclosed contours (when one opening is located inside the other) in floor slabs.
• Corrected value of load in the meshed model for the wall with interpretation 'Load' if the opening with defined unit weight is defined for the wall.

Unified intuitive graphic environment for the user

• To check design model and prepare documentation, mosaic plots for properties of the following objects are realized:
  • mosaic plot to evaluate the quality of FE mesh for 3-node and 4-node plates; the best quality is equal to 1 for the square and equilateral triangle;
  • mosaic plot to evaluate the quality of geometry of plate FE - 'Max angle between edges';
  • mosaic plot for nodes (it shows the number of elements adjacent to this node);
  • mosaic plot for numbers of assigned pile groups.

• In filter for elements there is new parameter to find/select elements along the length of structural element
• New option to save lists of nodes and elements when the PolyFilter dialog box is closed. When the nodes and/or elements are selected on the model with 'selection window', the filters defined for the generated list of nodes and elements are considered.
• Ribbon user interface now contains command to define parameters for the FEA solver.

• SOIL system: additional triangulation of loads that simulate the soil excavation from the foundation pit.

• SOIL system: mosaic plot of stress from soil excavated from the foundation pit.

• Corrected error in generation of punching shear contours for the beam grillage and foundation slab.
• SOIL system: account of settlements for specific soils in calculation of subgrade moduli by 'Method 1' (calculation by Pasternak model).
• SOIL system: when the settlement and subgrade moduli C1, C2 are calculated, the soil along the pile length is considered as non-compressible for both cases: for the case K1=K2=0 and for the case K1≠0 or К2≠0 (K1 - proportion of load transmitted at the pile top, K2 - proportion of load transmitted along the pile length).
• In the 'Define moduli C1 and C2' dialog box, new option to define Pz without No. of subgroup for imported loads.
• When the model of piles is generated as the chain of bars with elastic springs along the length (from FE 57 method 2), every pile will be automatically included into structural block.
• New toolbar 'Flags of drawing' with commonly used settings of graphic presentation. Set of buttons and their location may be modified by the user.

• New flags of drawing: pile group No.; pile groups in colour; numbers for subgroups of loads Pz included into group of loads exported to the SOIL system; data about hidden nodes (visibility of these nodes are cancelled with flags of drawing).
• New tool to add to design model the special FE (such as FE of elastic spring, damper, etc.). This tool will integrate the FE of the required length into the specified location and at the same time assign the selected stiffness.

• In description of stiffness for FE 262 (simulates one-sided elastic spring between nodes with option to consider the gap), new option '+ FE length' is added. In compression, this option enables you to add the actual FE length to the specified gap (if the gap length is defined as equal to zero and this option is active, then the gap size will be automatically equal to the length of the FE).
• New input tables:
  • 'Number of design sections' - to define and modify number of sections in which the forces/stresses for bars and plates will be computed (in case of plates - centre of plate plus nodes in which stresses will be computed);
  • 'Assemblage stages' - to define and modify the data about assemblage/disassemblage stages.
• New options to manage synchronization for the model when you work with multiple windows:
  • for fragmentation;
  • for projections/views;
  • for the settings of the flags of drawing.

• Table with output data for forces by steps in nonlinear analysis.
• In the mode of analysis result evaluation, new option to calculate DCF for selected elements or current fragment of the model.

• For the plate elements, new option to define thermal load in unified axes for the output data.
• For analysis results by load cases/DCL, new mode for presentation of forces and displacements max by absolute value.

• Bar analogues are available for problems with time history analysis.
• New check and warning for the case when analysis 'by forces' is defined in the settings for design options.
• New option to import the section from VISOR-SAPR module to 'Cross-section Design Toolkit' module according to the data of fire resistance for the element. The section is imported as divided into zones depending on distribution of temperatures at every part of the section. Every zone has its own stress-strain diagram for concrete and reinforcement with account of changes in physical and mechanical properties of concrete and reinforcement at high temperature fire.

• In the 'Mesh generation' dialog box, for the simple contour, new option to select intermediate nodes with the Shift key and to modify the scale of displacements (when you hold down the Ctrl key and rotate the mouse wheel).
• For the graphs of kinetic energy, displacement in time, speed and acceleration of node along the specified direction or forces in selected section of the element in time, it is possible to display the function value at places where the graph intersects the integration steps.
• The 'Diagram along section of plates' and 'Deflection diagram' dialog boxes contain commands that enable the user to locate the diagram vertically, on projection and display the local extreme values of the diagram.

FEA solver

• The window with analysis protocol is reorganized:
  • new tool for comfortable reading of analysis protocol during analysis procedure. Hold down the left mouse button in the protocol window to stop the automatical 'scrolling' of the window (until the key is released). Now you could, for example, 'scroll' the protocol window (when holding down the mouse button) and read the whole text available in the protocol window;
  • to zoom in/zoom out the font in the protocol window (hold down the Сtrl key and rotate the mouse wheel);
  • the text in the protocol window is now displayed many times faster than it was earlier. It is helpful in step-type analysis with a small number of unknowns, but a very large number of steps.

• Analysis on thermal loads defined along arbitrary direction in the plane of plate FE.
• Analysis on three-component accelerogram (dynamic modules 29, 64):
  • modified calculation of inertial forces: distribution coefficients and modal masses are calculated for every component of the earthquake load;
  • to significantly reduce the time when you solve dynamic problem, new option to specify the max percentage of modal masses in certain directions (Mx=90%, My=90% Mz=75%).
  • the output data now contains 3 modal masses and 3 distribution coefficients for every component.

• For the dynamics module 62, the dangerous direction of load is determined automatically (when the 'Account of direction cosines' checkbox is not selected). The dangerous direction of load is determined for each mode shape based on the max distribution coefficient.
• Corrected behaviour of 2D and 3D physically nonlinear finite elements of soil, for which unloading path is defined by a separate branch (Ke is not equal to 1).
• Corrected behaviour of iterative physically nonlinear plates, for which unloading path is defined by a separate branch.
• For FE 262 (simulates one-way elastic spring between nodes with the option to consider the gap), in compression it is possible to consider the gap as equal to the length of the FE + the specified gap size.
• When collecting masses for dynamic analysis, new option to consider additional load cases specified in the 'Model nonlinear load cases' dialog box (when this option is not active, the masses from additional load cases are not automatically summed up with the masses of the main assemblage stages).

Reinforced Concrete Structures

• In analysis of reinforcement according to building codes of Kazakhstan, coefficients in sect.7.2 SP RK EN 1992-1-1:2004/2011 are considered.
• New algorithm for analysis of reinforcement in plate elements according to Wood theory by SP 63.13330.2018 and SP RK EN 1992-1-1:2004/2011.
• The 'Define and edit the types of pilot reinforcement (PR)' dialog box is optimized for the work with a large number of PR types.
• In the 'Define and edit the types of pilot reinforcement (PR)' dialog box, when PR types are defined for plate elements it is possible to define concrete cover from material properties. New option to arrange symmetric reinforcement for plates.
• 'AVANGARD' is a system for detailed evaluation for bearing capacity of reinforced concrete sections in oblique eccentric compression (tension). Generation of the surface (volume) for the bearing capacity of RC normal section with arbitrary arrangement of reinforcing bars by SNIP 2.03.01-84*, DSTU 360-98, TSN 102-00* and SP 63.13330.2018.

Steel Structures

• In analysis of steel structures, the I-section may be checked/selected with no reference to existing steel tables.
• 'Arbitrary bar' may be analysed according to Eurocode EN 1993-1-1:2005/AC:2009 and building codes of Kazakhstan SP RK EN 1993-1-1:2005/2011, for cold-formed shapes according to SP 260.1325800.2016 and beams of variable section according to SP 16.13330.2017.

LIRA-SAPR Analysis Client/Server

• Fixed bug: server stop when analysis of *.lir file is defined from read-only network folder.
• Double-click the icon in the notification area (at the far right of the taskbar) to close the LIRA-SAPR Analysis Client/Server window if this window is open.
• New state for the problem - 'Waiting for ZIP file with input data '. Earlier, in this state, analysis of such problem may be started and the queue of the problems is blocked. It is possible to terminate analysis marked as started but for some reason is not actually running. It is also possible to delete from the queue the problem in state 'Creating Zip-archive with analysis results on the server computer'. It is not allowed to delete the problem during the time when it is analysed. Earlier, when the 'Remove' command was activated for the analysed problem, the problem queue was blocked. The 'record operations ' tool is deleted.
• Corrected function of the 'More...' button when the data is reorganized.

Interoperability

• Enhanced import of floor plans DXF:
  • in SAPFIR module, when a polyline is imported to the 'Space' object, it is possible to define its interpretation as a load, its intensity and load case;
  • restored option to import surface loads;
  • fixed bug: rotation of column sections when the model is generated according to the DXF floor plan.

• Enhanced import of IFC:
  • when the openings in walls are imported, the 'Apply to adjacent walls' property is automatically set for them;
  • enhanced import of beams;
  • account of rotation angle for the building in import of IFC file;
  • enhanced generation of openings in walls for IFC files generated in Tekla Structures.

SAPFIR-Structures

• The ratio of coefficients Gamma fm/Gamma fe is transferred to the DCL table in VISOR-SAPR module for the Wind load case according to DBN B.1.2-2006 3.1(2007).
• Enhanced option to generate colours for stiffness in SAPFIR objects.
• New option to consider the weight of window and door’s assembly for walls with the interpretation Load.
• New parameter 'Wind load' is added for walls and windows. For a specified parameter, elements with zero stiffness are generated over the whole area of the opening in the design model, in particular, to collect the wind load.

Interoperability

• Enhanced import of floor plans DXF:
  • in SAPFIR module, when a polyline is imported to the 'Space' object, it is possible to define its interpretation as a load, its intensity and load case;
  • restored option to import surface loads;
  • fixed bug: rotation of column sections when the model is generated according to the DXF floor plan.

• Enhanced import of IFC:
  • when the openings in walls are imported, the 'Apply to adjacent walls' property is automatically set for them;
  • enhanced import of beams;
  • account of rotation angle for the building in import of IFC file;
  • enhanced generation of openings in walls for IFC files generated in Tekla Structures.

SAPFIR-Structures

• The ratio of coefficients Gamma fm/Gamma fe is transferred to the DCL table in VISOR-SAPR module for the Wind load case according to DBN B.1.2-2006 3.1(2007).
• Enhanced option to generate colours for stiffness in SAPFIR objects.
• New option to consider the weight of window and door’s assembly for walls with the interpretation Load.
• New parameter 'Wind load' is added for walls and windows. For a specified parameter, elements with zero stiffness are generated over the whole area of the opening in the design model, in particular, to collect the wind load.

• Enhanced calculation of reserve factor for reinforcement in plate elements during analysis on progressive collapse.

• Clarified analysis of reinforcement in plate elements by SP RK EN 1992-1-1:2004/2011 in case it is necessary to increase reinforcement to provide required crack resistance.
  

• Blocked option to interact with the user interface when standard tables with the output data are generated. Enhanced visual presentation of the progress bar.

• Enhanced conversion of measurement units when you define the data for equivalent pile foundation in the SOIL system.

• New option to transfer loads to the physically nonlinear finite elements from SAPFIR-3D module.

• Restored option to save the current names of elements in the Report Book when they are updated.

• When models are transferred from SAPFIR module, loading histories by default will have the DCF group A1 and the 'Displacements and forces after every step' option will become active.

• It is not necessary to connect with results of steel analysis every time when you open the problem if design options (except the last one) were deleted from the problem.

• New option to transfer stiffness FE-310 from SAPFIR module to VISOR-SAPR module.

Analysis Client/Server LIRA-SAPR

• When the problem is sent to analysis, it is possible to skip recalculation of subgrade moduli C1/C2 or pile stiffnesses by soil model.

• New option to organize the list of problems in the queue by every column. New option to modify the window size.

• For the problems with status 'Analysis failed', new option to display the protocol of FE analysis if such analysis was carried out.

SAPFIR-Structures

• Enhanced option to transfer to VISOR-SAPR module the hinge supports of floor slabs with eccentricity.
  
• Restored work in the 'Editable analytics' mode, it is not necessary to close and open file.
  
• Enhanced option to save the *.spf file if nonlinearity is defined for the file.
  
• Enhanced option to transfer to VISOR-SAPR module the data by 14th piecewise linear function.
  
• Corrected option to select the current layer in the 'Layers' dialog box.
  
• Corrected numbers for the sheets of drawings during the export to DXF.

SAPFIR-Structures

• Enhanced option to transfer to VISOR-SAPR module the hinge supports of floor slabs with eccentricity.
  
• Restored work in the 'Editable analytics' mode, it is not necessary to close and open file.
  
• Enhanced option to save the *.spf file if nonlinearity is defined for the file.
  
• Enhanced option to transfer to VISOR-SAPR module the data by 14th piecewise linear function.
  
• Corrected option to select the current layer in the 'Layers' dialog box.
  
• Corrected numbers for the sheets of drawings during the export to DXF.

• Fixed bug: program crash when you work with problems that contain a large number of structural elements (more than 10 000 StE).

• Fixed bug: program crash when working with problems that contain a large number of types of pilot reinforcement (more than 10 000).

• Restored option: correct calculation of nonlinear stiffness parameters for bars of circular/ring cross-section.

• Enhanced calculation for design resistance of soil with account of the basement.

• Restored account of additional pressure when calculating moduli of subgrade reaction of soil.

• For the user-defined combinations defined by SP 20.13330.2011/2016 and DBN B.1.2-2:2006, the 'specific combination' option is corrected, even if the combination does not include any no appropriate load cases. It may affect the analysis of steel sections by the serviceability limit states (SLS).

• Enhanced analysis of local buckling out of the plane of the rolled I-section according to SP 16.13330.2017.

• Fixed bug: program failure when selecting steel sections that contain unified groups of elements.

• Restored import of double angles section from Tekla Structures.

LIRA-SAPR Analysis Client/Server

• Fixed bug: in analysis of problems where subgrade moduli C1/C2 or pile stiffness values should be recalculated, only static / dynamic analysis were carried out, and optionally, DCL calculation and analysis of RC and steel structures.

• To open the application, double-click appropriate icon in the notification area of the taskbar.

• The message 'LIRA-SAPR Analysis Client / Server 2021 continues to work' is displayed only when you close the window for the first time.

• Fixed bug: if the problem was set for recalculation from another computer or from another user account, then its *.lir file was deleted. This applies only to the problems for which the analysis was not started. Now: if the analysis is not started, then only files from the exchange folder are deleted. In other cases, the message 'Your command has been sent to analysis server «computer_name.account_name» and will be processed as the server become available. If you do not need to delete files of problem initial data and results from the server, you may simply delete the files from the exchange folder manually'.

SAPFIR-Structures

• New parameter 'Wind load' is added to the properties of door and window openings; it enables you to take into account the area of the opening when collecting the positive/negative wind load in space. Plates with zero stiffness are generated inside the openings.

• In the properties of objects there is an option to define the load case for the dead load.

• Enhanced copy option for steel objects with assigned design parameters and cleanups.

• Option to return to the user-defined colours of objects after using the 'Mosaic plot for certain parameters' or 'Colour of objects by stiffness, object types, materials', etc. commands.

• Option to restore the colour of the load after using 'Mosaic plot for certain parameters' command.

• Option to generate mosaic plot of properties for subobjects for the top edges in wall segments.

• Corrected 'Line colour' parameter for beams.

• Enhanced mirror copy for the text.

• Fixed bug: the hinge node was changed (from the 1st to the 2nd) for the 'Angle' section when the meshed model is generated.

• Enhanced transfer (to VISOR-SAPR module) of hinged support with eccentricity for the floor slabs.

• When the 'Filter by parameters' dialog box is opened, the settings for the previous filter are cleared.

• Enhanced generation of punching shear contours by SP RK EN 1992-1-1:2004/2011.

SAPFIR-Structures

• New parameter 'Wind load' is added to the properties of door and window openings; it enables you to take into account the area of the opening when collecting the positive/negative wind load in space. Plates with zero stiffness are generated inside the openings.

• In the properties of objects there is an option to define the load case for the dead load.

• Enhanced copy option for steel objects with assigned design parameters and cleanups.

• Option to return to the user-defined colours of objects after using the 'Mosaic plot for certain parameters' or 'Colour of objects by stiffness, object types, materials', etc. commands.

• Option to restore the colour of the load after using 'Mosaic plot for certain parameters' command.

• Option to generate mosaic plot of properties for subobjects for the top edges in wall segments.

• Corrected 'Line colour' parameter for beams.

• Enhanced mirror copy for the text.

• Fixed bug: the hinge node was changed (from the 1st to the 2nd) for the 'Angle' section when the meshed model is generated.

• Enhanced transfer (to VISOR-SAPR module) of hinged support with eccentricity for the floor slabs.

• When the 'Filter by parameters' dialog box is opened, the settings for the previous filter are cleared.

• Enhanced generation of punching shear contours by SP RK EN 1992-1-1:2004/2011.

• Combinations with dynamic load cases are ignored when you define the input data for fire resistance analysis (by DCL).
• Enhanced analysis of reinforcement (with account of fire resistance) in shear force for the section with dimension >100 cm.
• Modified generation of nonlinear stress-strain diagram for concrete for the DCF group A1 according to analysis results of reinforcement.
• Enhanced option to assign types of pilot reinforcement (PR) to bars with account of symmetric/asymmetric reinforcement for columns and beams.
• Modified analysis of transverse reinforcement in shear force for RC elements according to SP 63.13330.2012/2018.
• Modified analysis of reinforcement by serviceability limit state for RC elements of circular/ring sections according to SP 63.13330.2012/2018.
• In METEOR system, it is possible to delete several problems (at the same time) from the list of integrated problems.
• Modified import of files *.stl, *.mesh, *.msh, *.obj, *.poly in 64-bit version of LIRA-SAPR.
• Fixed bug: when for some imported loads the program did not compute design strength of soil at the level of load application.
• Fixed bug in transferring loads to the SOIL system in case when number of groups of loads in *.lir file is less in comparison with the number of groups previously transferred and saved to *.sld file.
• Analysis of reinforcement is restored for the integrated problem obtained by analysis rsults of METEOR system by DCF+.
• Modified options to open and save RC materials for files from version 2021.
• Fixed bug: account of local moment in analysis of truss joint.
• Analysis of eccentrically compressed elements of I-section is modified for EN 1993-1-1:2005/AC:2009.
• New option to use unification for the integrated problems in METEOR system ('DCF+' mode).
• Clarified analysis by DCL for punching shear contour according to SP RK EN 1992-1-1:2004/2011.
• When the columns base is analysed, it is possible to apply bolts with diameter 80mm.
• Fixed bug: program failure in case you edit design model and evaluate analysis results at the same time (in different program windows).
• Fixed bug: in saving accidental eccentricities (eak) defined for dynamic load cases.
• In the Steel tables ('Steel Rolled Shapes' module) it is possible to save additional columns with user-defined parameters of steel for different thickness values of rolled shapes (columns 15-20 in the table).
• In analysis of support joint of truss from rectangular pipes, clarified calculation of forces on high strength bolts.

SAPFIR-Structures

• Enhanced transfer of surface loads to VISOR-SAPR module.
• Restored option to make a cleanup (manually) of the wall for the slab.
• Restored option to define the snow load according to NP to SP RK EN 1991-1-3:2005/2017.
• For the arroy of piles, it is possible to consider ratotion angle about the Z-axis that was defined in properties of the structure.
• Enhanced option to copy storeys with stairs for which load values are defined.

SAPFIR-GENERATOR

• New option to extract lines from the surface generated by formula with node 'SurfForm' - Defining the surface with formula.
• Enhanced generation of lines in node 'JoinLn' - Connection of the specified lines in series.
• Enhanced node 'StoreyPro' - Advanced generation of storeys at specified levels.

SAPFIR-Structures

• Enhanced transfer of surface loads to VISOR-SAPR module.
• Restored option to make a cleanup (manually) of the wall for the slab.
• Restored option to define the snow load according to NP to SP RK EN 1991-1-3:2005/2017.
• For the arroy of piles, it is possible to consider ratotion angle about the Z-axis that was defined in properties of the structure.
• Enhanced option to copy storeys with stairs for which load values are defined.

SAPFIR-GENERATOR

• New option to extract lines from the surface generated by formula with node 'SurfForm' - Defining the surface with formula.
• Enhanced generation of lines in node 'JoinLn' - Connection of the specified lines in series.
• Enhanced node 'StoreyPro' - Advanced generation of storeys at specified levels.

Interoperability

• Corrected import of analysis results to the Autodesk Revit model, added import of selected reinforcement from LIRA-SAPR program when you work with Ukrainian language interface.

• Corrected export of certain built-up steel sections from VISOR-SAPR to the *.STP format (for integration with Advance Steel DStV PSS).

Unified graphic environment (VISOR-SAPR module)

• Corrected error when the groups of coupled DOF are imported from the text file in case hinge supports for slabs are simulated.

• Corrected imprecise presentation of the total intensity on mosaic plots of loads in case the surface loads are added to the block of loads when the elements are copied.

• For the group of problems analysed in the Batch Analysis Mode, new option to check the pilot reinforcement for RC elements.

• Enhanced algorithm for generation of physically nonlinear stiffness by results from analysis of reinforcement for elements:

• for elements that became physically nonlinear, the following data is saved: input data for analyses of steel and RC elements, information about unification groups and structural elements;
• when unification results for selected reinforcement are used together with piecewise linear stress-strain law (14), numerical values for parameters of nonlinear law are modified according to the current units of measurement.

• Corrected option to convert the measurement units for nodal load of accelerogram type.

• Corrected error in compatibility of files when you open problems in Demo version.

Steel Structures

• In geometrically nonlinear problems with progressive collapse that are defined with dynamic factors (quasistatic), now it is possible to carry out analysis of steel structures by design combinations of forces (DCF).

• Enhanced import of results of the static and dynamic analysis for certain steel elements in case more than 300 static load cases are defined for the problem.

• Enhanced analysis of steel structures according to AISC LRFD 2nd edition for the axially tensile elements.

• Clarified the shear force for bearing capacity of steel beam according to Eurocode 3.1.1 EN 1993-1-1:2005/AC:2009.

• Enhanced flexural-torsional buckling analysis of steel profiles according to Eurocode 3.1.1 EN 1993-1-1:2005/AC:2009.

Reinforced Concrete Structures

• Corrected analysis of reinforcement in plate elements with account of fire resistance according to STO 36554501-006-2006.

• In analysis of RC elements, enhanced analysis according to SP RK EN 1992-1-1:2004/2011 'Design of RC structures'.

METEOR (Method of unified complete result)

• METEOR (Method of unified complete result) Enhanced options for MODEL VARIATION system. For the problems united in METEOR system by design combinations of forces (DCF+), arbitrary order is allowed for time history analysis, static & dynamic analyses.

SAPFIR-Structures

• Eliminated incorrect duplication of load on slab when the meshed model is generated. The load was duplicated if the thickening was defined along the slab contour.

• Enhanced generation of horizontal and vertical triangulation lines for the openings in the curvilinear walls.

• Enhanced import of user-defined sections (generated with Cross-section Design Toolkit) to the project library of SAPFIR sections.

• Enhanced option to edit the snap type for walls when the lower level of wall is defined from the storey top.

• Restored option to edit trusses through the control points.

• Restored option to edit the punching shear contour manually (option to move the points of the contour).

SAPFIR-Structures

• Eliminated incorrect duplication of load on slab when the meshed model is generated. The load was duplicated if the thickening was defined along the slab contour.

• Enhanced generation of horizontal and vertical triangulation lines for the openings in the curvilinear walls.

• Enhanced import of user-defined sections (generated with Cross-section Design Toolkit) to the project library of SAPFIR sections.

• Enhanced option to edit the snap type for walls when the lower level of wall is defined from the storey top.

• Restored option to edit trusses through the control points.

• Restored option to edit the punching shear contour manually (option to move the points of the contour).

SAPFIR-Structures

• Corrected options to create and edit the opening in the wall if 'Invert' option is defined for 'Orientation'.

• Enhanced option to correct location of the opening by line into walls if the generation of opening was cancelled with Esc button.

• Enhanced option to generate PRB in cases when parameter 'Search for intersections' (accuracy) several times greater than parameter 'Unions' (accuracy).

• Enhanced option to generate PRB for walls.

• New option to automatically update model after 'end cleanup' is cancelled.

• Corrected error in generation of punching shear contours below the floor slab level.

• For the SP RK EN 1992-1-1:2004/2011, default parameters for generation of punching shear contours are modified, k=2.

• Enhanced option to determine the plate thickness if the 'Plate' option if defined as analytical interpretation of the beam.

• New option to automatically update analytical model of inclined slab when the slab is modified through the control points.

• Enhanced option to define the earthquake by SP 14.13330.2014/2018 (56).

Large panel buildings

• New option to save initial length of the axial line of the wall when joints are generated.

• Enhanced tool to automatically generate joints ('Apply…' command, 'Precast concrete' dialog box).

• Corrected behaviour of the horizontal joint for the case when in the opening in wall parameter 'Vertical lines of triangulation' is defined.

• Enhanced option to generate intersections in the meshed model for the special elements of springs.

SAPFIR-GENERATOR

• Enhanced option to generate block of nodes.

• Enhanced arrangement of nodes on the canvas for the 'Unite/Split block' commands.

• New option to snap the lower level of walls and columns to the intermediate level of the storey.

Interoperability

• Input tables:

  • corrected option: sign for the unification angle (relative to the local X1-axis of the plate) in the input tables 'Local axes of plates' and 'Axes of orthotropy for plates' in some cases of orientation for plates;

  • clarified column headings for the input tables 'Local axes of plates' and 'Axes of orthotropy for plates'.

• For import from SAF, enhanced option to recognize the level for analytical model of slabs.

• New option to import capitals from the IFC file.

• Enhanced recognition of openings in prisms when IFC file is imported.

Unified graphic environment VISOR-SAPR

• New option to automatically generate nonlinear stress-strain diagrams for the main material (concrete) and reinforcement according to the data defined in analysis of RC structures. In earlier versions, nonlinear diagrams were presented with combination from 11/15 exponential diagrams for reinforcement and concrete. Now it is possible to flexibly manage the process of diagram generation:

  • to select the diagram 11/15 (exponential) or 14 (piecewise linear);

  • to select the DCF group for which the further analysis of A1, B1, C1 and D1 should be carried out. Rules for generation of material diagrams depends on the purpose of analysis, namely: to determine values for max stress and relative strain;

  • when the diagram is generated, all necessary partial safety factors defined in material for RC structures are considered;

  • in the comment to the diagram, there is a description, e.g. B25 group D1, that is, material properties for concrete class B25 are used in the diagram with all necessary set of partial safety factors for the strength analysis on specific/emergency combinations;

  • new option to generate nonlinear problem even if there is no unification of reinforcement. In earlier version it was mandatory. Types of pilot reinforcement (PR) may be used as reinforcement in nonlinear analyses.

Option to replace stiffness by data from analysis of RC structures

Design model with the generated nonlinear stiffness according to the data from analysis of reinforcement

• Corrected option to open analysis results for the problems with time history analysis if the problem has more than 1000 check time points.

• Corrected option to generate the text file with the list of elements in cases when the list contains deleted elements.

• IMPORTANT. In release R3 there is a new option to take account of total coefficient to stages when masses are collected in order to carry out dynamic analysis by method of decomposition by natural mode shapes of vibrations as well as time history analysis. To take into account the total coefficient to stages, select appropriate option in the 'Model nonlinear load cases' dialog box. Masses are not collected for the additional load cases defined to assemblage stages.

• Corrected error in presentation of icons and colour markers in the 'Stiffness and materials' dialog box when you work with Windows fonts of different scales.

• In the 'Define and edit types of pilot reinforcement (PR)' dialog box, when the 'generate PR types by reinforcement palette' option is active, corrected error that caused increase in area of one rebar (as multiples of number of rebars).

• Enhanced algorithm for auto division into rectilinear groups of piers if the precision for model geometry is specified.

• Corrected option to unite loads when two triangular plates are united into quadrilateral one and the situation when loads are copied with the 'Information about node or element' tool.

• For modal analysis, new option to display mosaic plot with weights of masses.

• Enhanced control when the dead weight is assigned at assemblage stages; the weight assigned earlier in other assemblage stages is removed. This rule is not applied to the after-stage load cases.

• Corrected option to display the load values per r.m. in case the group includes elements with modulus of elasticity equal to zero.

• New option to automatically update the current palette for mosaic plots with subgrade moduli, pile stiffness, bearing capacity, in case the input data is modified and the data is computed once again.

FEM-Solver

• Corrected error that caused inaccurate generation of data for the nonlinear stiffness.

• Restored option to define the pack precision for nodes and arrangement precision for super-elements (SE).

Steel Structures

• In tables of analysis results there are warnings for the case when incorrect combinations of steel and appropriate thickness are used in check/selection of sections.

• For the elements of 'truss' type, new option to define the partial safety factor for analysis on specific/emergency combinations.

• For the elements of 'beam' type, new option to manage the ultimate deflection in analysis on specific combinations. In earlier versions, this value was accepted by default as equal to 1/50L.

• Modified work with the 'Forces' dialog box in the local mode for analysis of joints and elements.

• In analysis of beam-to-column connection:

  • modified algorithm to select number of bolts along the height of the beam web, fixed joint with angle and with plate;

  • modified length of angle, pinned joint with angle and fixed joint with angle;

  • initial distance between bolts across the action of transverse forces is accepted as min (1.3*D, where it is possible, earlier it was accepted as equal to 1.5*D);

  • clarified option to determine partial safety factor for the bolted joint Yb according to the table 41 SP 16.13330.2017.

• In analysis of rigid column base, corrected error that occurred when the base is pulled out (uplifting) and in the presence of specific/emergency combinations, the error referred to an incorrect determination of design resistance of bolts.

• In analysis of truss joints from rectangular pipes, enhanced algorithm to determine slope angle of elements included into the joint for the case when geometry is transferred to the local mode of analysis of the main model.

• Modification in analysis of steel structures according to ЕN3:

• clarified how the structural deformation influences internal moments in columns (P-delta effect);
• corrected utilization ratio for the cross-section in analysis on compression.

Reinforced Concrete Structures

• For the building code SP 63.13330.2018:

• for statically determined structures, corrected option to take account of random eccentricity;
• when the slenderness ratio is considered, clarified analysis of stresses from the long-time part of loads;
• when analysis type 'pylon' is used, in bar elements account of slenderness ratio is corrected;
• corrected option to select forces for fire resistance analysis;
• added option to apply partial safety factors for concrete of arbitrary class in analysis on specific/emergency combinations;
• updated design parameters of steel class A400.

• For the building code SP RK EN 1992-1-1:2004/2011:

• the effects of the deformed geometry (second-order effects) were recovered;
• when materials are defined for analysis, by default, coefficients from the National Annex are used.

• Corrected error when computing KЗ by strength for the building code TKP EN 1992-1-1-2009.

Documentation system

• Corrected option to generate the input data tables for the large problems.

• Corrected option to generate the input data tables 'Reinforced concrete'.

DCL (design combinations of loads)

• For the building code SP RK EN 1990:2020+А1:2005/2011:

• when the input data for the DCL table is defined, it is possible to indicate which loads were defined in the design model – design values or normative ones;
• when several standard combinations of loads are added, in the DCL name there will be a label that indicates whether this combination belongs to a certain group of combinations (I-VII);
• corrected option to generate specific/emergency load cases.

• IMPORTANT. Sect.4.29 is taken into account according to requirements of EN8. Bending moments at the joints of structural elements of beams and columns are corrected for the whole earthquake combination, rather than only for the forces obtained from the earthquake load. This requirement is also considered in analysis by quasistatic method when inertial forces from the earthquake load are defined as the input data, that is, as the load on nodes and elements of the model.

SOIL

• Corrected error in extrapolation of soil model; the error caused application instability.

• Corrected triangulation procedure when 2D FE of soil are generated.

Bar analogues

• Clarified calculation of forces in bar analogues for the type of section 'angle'.

• For the short part of wall, enhanced option to determine angle of pure rotation when bar analogues (BA) are generated.

SRS-SAPR (steel rolled shapes, steel tables)

• New steel tables of local steel structures mode according to STО 02494680-073-2020:
• C-shaped 'Akfabuid';
• Channel sections, steel bent equal-leg 'Akfabuid';
• Z-shaped 'Akfabuid'.

Cross-section Design Toolkit

• In the 'Sectional view' dialog box, new option to indicate dimensions and display values on diagrams.

• Enhanced work with dialog boxes 'Hatching', 'Texts'.

SAPFIR-Structures

• Corrected options to create and edit the opening in the wall if 'Invert' option is defined for 'Orientation'.

• Enhanced option to correct location of the opening by line into walls if the generation of opening was cancelled with Esc button.

• Enhanced option to generate PRB in cases when parameter 'Search for intersections' (accuracy) several times greater than parameter 'Unions' (accuracy).

• Enhanced option to generate PRB for walls.

• New option to automatically update model after 'end cleanup' is cancelled.

• Corrected error in generation of punching shear contours below the floor slab level.

• For the SP RK EN 1992-1-1:2004/2011, default parameters for generation of punching shear contours are modified, k=2.

• Enhanced option to determine the plate thickness if the 'Plate' option if defined as analytical interpretation of the beam.

• New option to automatically update analytical model of inclined slab when the slab is modified through the control points.

• Enhanced option to define the earthquake by SP 14.13330.2014/2018 (56).

Large panel buildings

• New option to save initial length of the axial line of the wall when joints are generated.

• Enhanced tool to automatically generate joints ('Apply…' command, 'Precast concrete' dialog box).

• Corrected behaviour of the horizontal joint for the case when in the opening in wall parameter 'Vertical lines of triangulation' is defined.

• Enhanced option to generate intersections in the meshed model for the special elements of springs.

SAPFIR-GENERATOR

• Enhanced option to generate block of nodes.

• Enhanced arrangement of nodes on the canvas for the 'Unite/Split block' commands.

• New option to snap the lower level of walls and columns to the intermediate level of the storey.

New module in the 'Foundations and beddings' chapter

• Module 'Analysis of single pile by DBN' is mentioned to analyse the settlement of a single pile according to Modification No.1 to DBN B.2.1-10:2009.

'Static and dynalic analyses, stability' chapter

• New option in the 'Shell on circular plan' module: to compute with account of geometrically nonlinear strain; simple step-type method is realized.
  

Enhancements are provided and the user feedback is considered in the following modules:

• Composite steel and concrete slabs;
• Analysis of timber structures;
• Analysis of single pile;
• Diaphragm;
• Punching shear analysis (Eurocode);
• Prestressing;
• Sheet piling.

Interoperability

• Plugin for two-way integration with Autodesk Revit is customized for Revit 2021.
• New options are provided for input tables:
  • new input tables are added:
    • parameters of bars (Offsets in bars, Local axes of bars, Hinges);
    • parameters of plates (Local axes of plates, Offsets in plates, Axes of orthotropy for plates);
    • parameters of nodes (PRB, Coupled DOF, Local axes of nodes).
  • data exchange between active problem files;
  • API tools are provided for all tables.
• To import analytical models through the SAF format, steel sections and steel properties are now recognized.
• To import floor plans DXF, restored option to determine direction of the staircase by arranging the circle at the side from which the rise begins.
• To import through the IFC format, the following modifications are made:
• corrected option to recognize the sections of multi-span beams and rotation angle for the section;
• added option to import curvilinear beams;
• enhanced option to import walls and slabs saved to the IFC file as the layer IfcBuildingElementPart;
• corrected option to generate several openings at the same place when walls and slabs with openings are imported.

Unified graphic environment VISOR-SAPR

• Rayleigh damping coefficients are computed for the range of frequencies to consider the damping effect in time history analysis.
• Calculation of warping and shear stiffness for the built-up steel sections based on geometry defined from the library of steel sections.

• To evaluate the input/output data, the following mosaic plots are added:
• strength of joint per r.m. in live and short-term load;

• lengths of structural elements;
• nominal strain Eps min/max, max stress in main material of the section for bars and plates in physically nonlinear problems;

• mosaic plot and vectors of loads from disassembled elements in analysis of assemblage problems and in analysis on progressive collapse.

• New option to copy objects along the vector.

• Option to copy structural elements. If structural elements are completely included into the element that is copied, then new structural elements will be generated during copy procedure.

• New option to compute absolute and relative deformation as well as the skew angle between the two specified nodes of deformed model.

• Option to compute relative deflection between support nodes.

• In the DCF/DCL tables of input data for SP 20.13330.2016, new option to define the safety factor separately for specific combinations (earthquake and specific, except earthquake load cases).
• New option to define the height elevations in dimetric and isometric projections.
• New options to visualize grid lines - in isometric projection it is possible to define the length of grid lines and distance between them, to make tags transparent, to define one-sided tags and dimensions. Grip area (allowed gap) may be defined to find elements and nodes located in the plane of grid line.

• Animation of displacements, mode shapes/buckling modes with different vibration scale in the main window.

• New option to generate design levels for the model fragment. Now you could define piers for the part of design model and do not intersect triangulation mesh for the whole model.
• In the 'Display' dialog box, on the 'Nodes' panel, new flag of drawing 'PRB as line segments' is added. When this check box is selected, kinematic constraints between slave nodes and master node will be displayed on the model.

• Option to save the settings for flags of drawing (location of sliders, coefficients, smoothing angle) for the current problem.
• New option to define the stiffness of the joint per running metre in live and short-term loads, and to import these parameters from SAPFIR module.
• Option to unite bars with the same uniformly-distributed load into one FE.
• Option to envelope contour lines of plates and solids with account of borders between different stiffness values of structural blocks.

• No limitation to generate structural elements for FE 309.
• For assemblage problems, it is possible to move the after-stage load cases in the 'Edit load cases' dialog box.
• Corrected error in setting the ranges of the scale for parameters of cracks.
• New options to export/import the settings for location of input/output/text/documentation files on the disk; to set measurement units, parameters for modification and visualization, parameters for scales of input/output data; to define colours for objects of the model and contour plots, analysis parameters (statics and dynamics, design, analysis of reinforcement), number of significant digits for the figures on the model.

FEM solver

• Residual stiffness values are displayed after any nonlinear analysis rather than only after 'NL Engineering 2'».

  On the 'Nonlinear stiffness' ribbon panel, the following mosaic plots for the output data are added (in previous versions they were available only on the drop-down menu):

• Flexural and membrane stiffness of plates: mosaic plots for modulus of elasticity along the unified local X1 and Y1-axes; mosaic plots for Poisson's ratio along the unified local X1 and Y1-axes; mosaic plots for shear modulus.
• Stiffness of bar FE: mosaic plot for axial stiffness, flexural stiffness about the local Y1 and Z1-axes, shear stiffness along the Y1 and Z1-axes, torsional stiffness.
• Stiffness of finite element of joint with account of nonlinear behaviour (FE 258, 259): mosaic plot for modulus of elasticity and shear modulus.
• Stiffness for two-node FE of elastic spring with account of ultimate forces (FE 255): mosaic plot for stiffness (per running metre) of restraints in axial compression (tension) along the local X1, Y1, Z1-axis, mosaic plot for stiffness (per running metre) of restraints in torsion about the local X1, Y1, Z1-axis).

Mosaic plot for modulus of elasticity (flexural stiffness of plates)

Mosaic plot for modulus of elasticity FE 258, 259

• New dynamic module No.61 – analysis on earthquake load according to SP RK EN 1998-1:2004/2012, NTP RK 08-01.1-2017.
• New dynamic module No.62 – analysis on earthquake load according to SP 14.13330.2018, with Modification No.1.
• Calculation of total components by the CQC method (full quadratic sum). CQC method is used to calculate DCF/DCL, to generate the output tables and in all design modules of the program.

Documentation system

• The stiffness table now contains values for stiffness per running metre and rotational stiffness for 1-node FE of pile (FE57), values for stiffness of joint per running metre in live and short-term loads.

Generating design combinations of forces (DCF)

• New option to generate the DCF in problems with time history analysis: to consider coefficient of responsibility for building/structure, to generate the DCF for pre-history of dynamic load (group A1) and to select group of forces for dynamic load case (group B1 for analysis on wind pulsation, harmonic load; group C1 – earthquake analysis, accelerograms; group D1 – analysis on emergency load, explosion, impact, failure of elements in analysis on progressive collapse).

• For the problems with step-type method, it is possible to generate groups of DCF. Group may be selected for every loading history (groups A1-D1 and A2-D2).
• To sum up components of the earthquake loads, the СQC method is realized (full quadratic sum).

Problem integration

• New option to unite force combinations for time history analysis problems with service combinations and to obtain the total DCF table to carry out further design procedure. For example, to generate the envelope DCF for problems with different scenarios of progressive collapse.
• New option to unite DCF generated for physically nonlinear problems.
• When generating the integrated problem, the program applies table of correspondence for FE types. For example, in one of the integrated problems the bar may be presented as FE 10 while in another integrated problem - as FE 310.

Progressive collapse

• In design modules for analysis of reinforced concrete structures and steel structures, it is possible to use normative properties of materials and set of partial safety factors in analysis on specific/emergency load combinations (group D1), it is not necessary to generate the user-defined materials. During analysis of reinforcement, in material properties there is an option to manage the ultimate values of nominal strain for concrete and reinforcement.
• In local mode of STC-SAPR module, new type of force is introduced - 'specific'. It is used in analysis of sections and joints of steel structures on emergency loads, including progressive collapse.
• In local mode of STC-SAPR module, for the elements of 'beam' type there is a special check for deflections on emergency load combinations. By default, deflection value is limited with 1/50 from the span value.

New system 'Progressive collapse' in LIRA-SAPR 2020 enables the user to carry out analysis of structures on progressive collapse. Video on our channel

SOIL

• Corrected order for presentation of boreholes and loads on soil model.

Thermal analysis

• Analysis of heat flow in thermal analysis problems, summing up the heat flow for selected load cases.

Fire resistance

• Enhanced division of section into elementary areas for analysis of fire resistance, it helps to improve the accuracy with which the temperature is determined.

SAPFIR-Structures

• Option to save the settings for user interface: shortcut keys, location of floating windows, contents of the toolbars/menus/shortcut menus for the graphic window/'Library' and 'Sheets' windows. Default settings defined in the 'SAPFIR preferences' and 'Visualization options' dialog boxes may be also saved.

Wind load is collected automatically, analysis of load from snow mound is provided according to NTP RK 01-01-3.1(4.1)-2017 to SP RK EN 1991-1-3:2003/2011 and SP RK EN 1991-1-4:2003/2011. Limitations on min/max values of coefficient µ as well as limitations on min/max distance B are introduced.
• For the snow mound tool, architectural (physical) presentation of snow across the roof area is added.
• SP RK EN 1990:2002+A1:2005/2011 is supported for analysis by DCL.
• Option to define the earthquake load in new dynamic modules (61) Earthquake for SP RK EN 1998-1:2004/2012, NTP RK 08-01.1-2017 (Kazakhstan), (62) Earthquake SP 14.13330.2018 with Modifications No.1 (RF).

• In 'Filter by parameters' there is a new option for special elements.

• Enhanced dynamic presentation when the opening is moved within the beam system.
• Corrected error in computing the pile stiffness when the data is transferred to VISOR-SAPR module.
• Relocation of the building along the height (defined in properties for the building) is considered when levels for masonry reinforcing structures are defined.
• Enhanced 'Undo' command for cases when the drawing was generated in the empty document and the objects were added on the drawing, and to apply the load to the object contour.
• Enhanced option to define support/boundary conditions for columns in which analytical presentation were shifted from the centre in the 'Editable analytics' mode.
• Restored option to define support/boundary conditions when generating triangulation lines in analytical model.
• Restored option to cancel generation of offsets for the group of columns and beams.

Large panel buildings

• Stiffness (per running metre) of the joint is analysed in live and short-term load, new option to take account of creep. Data about computed strength of joint per r.m. is transferred to VISOR-SAPR module, graphically the data may be displayed with mosaic plot ('Advanced edit options' ribbon tab, 'Geometric & properties' tab).

Parametric design of large panel buildings

SAPFIR-GENERATOR

• Node for IFC import: enhanced tracing for modification of objects like window, door, opening.
• Node 'Inclined slab': added option to graphically define the slope vector.
• Node 'Generate storeys at defined levels': new option to generate the upper storey with the same height as the previous one. So, it is possible to define N levels (rather than N+1 as it was earlier) for N storeys.
• New option to automatically 'freeze' node of storeys when the whole model is 'baked'.

• Fixed: warnings from OS when the fragment from SAPFIR module is added to LIRA-SAPR project and then the model is packed.
• Corrected: table with results of reinforcement for RC elements in the *.csv format for problems where analysis results are saved in a separate folder (selected option).
• Fixed: warnings from OS when work with the 'Edit load cases' dialog box if there is no load case with the damping properties (for problems with Time History Analysis).
• For DirectX-based graphics mode, clarified recalculation of overall dimensions for the structure when new nodes are added to the model.
• Mosaic plots of nonlinear stiffness for 2-node FE of elastic springs with account of ultimate forces (FE 255) is still visualized when the load case number is changed.
• Fixed: possible errors on English versions of Windows OS in case Cyrillic names of *.LIR files are used when you work in the English interface of LIRA-SAPR.
• Corrected: endless DCF calculation when 'Method 10 %' is used to compute the total component of dynamic load (for problems with earthquake load cases).
• Fixed: possible abnormal termination of DCF calculation (for computers with AMD processors with a large number of logical processors (more than 20)).
• Fixed: initial presentation of super-elements in the active window for DirectX based graphics when super-elements were added to design model.
• Enhanced: presentation of mosaic plots with fire resistance parameters for RC bars specified with account of fire resistance.
• Restored: contour lines of plates are redrawn when visualization parameters for offsets in plates are modified in the 'Offsets in plates' dialog box.
• Fixed: correction factor for a surface load is considered when load cases are copied.
• Clarified: FE analysis results for wall-beams with the sixth DOF (rotation about the local Y1-axis).
• Corrected: difference in safety factors obtained in analysis of pilot reinforcement in VIZOR-SAPR module and in local mode of reinforcement for the element (for DBN B.2.6-98:2009).

Interoperability

• Enhanced options: recognition of multi-span beams when importing the *.ifc file and restoring their geometry in the case the Boolean operations were applied to the beams in the source file.
• Enhanced import of *.dxf floor plans: generating windows, walls and partitions. If a layer was assigned the corresponding layer name in AutoCad and the objects were drawn along the contour (walls, columns, piles), then the 'Contour' option is automatically set for the import to SAPFIR module.
• Fixed: difference in storey heights when importing *.ifc and LiraKM files from Revit.
• Restored: option to import several *.ifc files into separate projects during one work session.

SAPFIR-Structures

• Fixed: recovery of the physical model *.spf file according to the meshed model *.lir file if there were layers and storey levels in the meshed model.
• Added: option to define the ice load for columns.
• Settings for the line weight for columns may be also applied to capitals.
• In addition to the previous options to define the snow mound according to SP 20.13330.2016, now it is also possible to define the snow mound according to SP 20.13330.2011. Parameters defined in calculator (building code, snow area and parapet height) may be saved to use further during the work session.
• Fixed: generation of load from soil pressure in case there are openings in walls.
• Fixed: thickness of column base is transferred to VISOR-SAPR module correctly.
• Enhanced: snap of the premises to intermediate levels of storey.
• Fixed: duplicate beams included in the beam system when the meshed model is generated.

Large panel buildings

• Restored: FE of platform joints located in the wall openings are automatically excluded from the analytical model.

SAPFIR-RC

• Added: rebars may be located along the pile height.
• Restored: types of pilot reinforcement (PRT) for walls created in SAPFIR-RC module may be transferred to VISOR-SAPR module.
• Restored: the spacing of the studs and bend to the stud for wall reinforcement may be defined as default values. Class of reinforcement and the diameter of studs are added to default settings.
• Added: support of GOST 34028-2016 for individual rebars and reinforcing items.
• For the section by model of wall reinforcement, tag leaders are not generated for rebars that are not included in the section.
• Restored: reinforcing items (L-shaped elements, U-shaped elements) may be generated on the plans of vertical elements and on 2D detail views of wall reinforcement.
• Enhanced: presentation of wall reinforcement on 3D view for cases when the wall is snapped to the left or to the right of the axis.
• Added: the type of anchorage at the ends may be selected for a group of rebars in the model of beam reinforcement.
• Fixed: presentation of main reinforcement in the slab along the X-axis and along the Y-axis.

SAPFIR-GENERATOR

• Enhanced option to copy loads that are defined as a property of the slab when the 'Multi-copy by storeys' node is used.
• Fixed: snap of the base point of the door when copying the door node.