LIRA-SAPR program contains the following modules and systems:


Graphical user environment
VISOR-SAPR module is the unified graphical user interface (GUI) that includes professional tools for generating design models for different structures and evaluating analysis results.

The user goes through all stages of analysis beginning from generation of design model up to evaluation of analysis results in the same working environment. It is possible to select any mode of analysis, obtain information from any stage and review windows from several modes simultaneously (for example, evaluate analysis results and review input data at the same time).
Interface provides standard software routines similar to those in OS Windows and the user familiar with this environment could easily learn the program.
For the most part, the project is presented graphically (visualization of the whole objects and their parts, presentation of results as deformed shapes, diagrams, contour plots, animation, etc.).


SAPFIR-Structures module enables you to generate design model of the structure based on 3D model obtained in SAPFIR-3D program.
Design model generated in SAPFIR-Structures module will be analysed and designed by tools of LIRA-SAPR program. It is possible to generate and edit finite element meshes of plates, bars and static loads. Initial model of the structure is generated with interactive graphical tools provided in SAPFIR-3D. Moreover, 2D and 3D models generated in other graphical programs like Allplan, Revit, AutoCAD, etc. may be imported.

Reinforced Concrete Structures (ARM-SAPR)

Analysis & design of reinforced concrete (RC) structures
Analysis & design of RC structures is one of the modes in graphical user environment of the program. In this mode you could determine areas of reinforcement for columns, beams, slabs and shells according to ultimate and serviceability limit states. Building codes of different countries are supported. It is possible to assign arbitrary properties of concrete and reinforcement that is useful for analysis of reconstruction. In this mode you can unite several elements of the same type into one structural element (STE) and arrange reinforcement along the whole length of this element. Drawing of beams and columns are presented after analysis and can be saved as DXF files.


LIRA-SAPR contains a set of solvers and modules that realize basic analysis functions and methods for static / dynamic analyses for linear / nonlinear structures.


Analysis & design of separate reinforced concrete (RC) bar or plate element
LARM-SAPR is a module for analysis and design of the separate reinforced concrete bar or plate element according to appropriate building code. Design model of the element and loads applied to this element can be either imported from graphical user environment (VISOR-SAPR module) or defined in stand-alone mode. Areas of reinforcement are determined and then the specified reinforcement is checked for selected element.

LARM-SAPR module contains tools that help you define and edit section parameters, material properties, forces and their unfavourable combinations. LARM-SAPR module also contains extensive Help system where you can find information about options and tools of the module.
The following building codes are supported: SNIP 2.03.01-84, TSN-100, DSTU 3760-98, SNIP 52-01-2003, Eurocode 2.

Steel Structures (STC-SAPR)

Analysis & design of steel structures
Analysis & design of steel structures is one of the modes in graphical user environment of the program.
This mode operates in two variants where you can:
determine sections of the elements of steel structures, such as trusses, columns and beams, and
check specified sections according to building codes.
In this mode it is possible to unite several elements of the same type into one structural element (STE) and unify structural elements. STC-SAPR can work in local mode and check several variants of design.

In STC-SAPR module you could also design and analyse joints of steel structures. Library of parametric joints is constantly expanded and now it contains primarily joints peculiar to steel framework: beam grillage, connection between beams and columns, support nodes of columns, brace connections, etc. It is possible to compose complex joints from the simple ones. For example, based on simple joints ‘beam-to-column connection’ and ‘brace connection’, you could compose complex joint where three beams and four braces are connected to column.
STC-SAPR module can export to KM-SAPR module information about design model, determined and unified sections of elements, unified and calculated joints.
STC-SAPR module contains extensive documentary system and context-sensitive help.


Steel tables (Steel Rolled Shapes)
SRS-SAPR module is intended for editing of steel tables. SRS-SAPR creates new and edits existing steel tables of rolled and welded sections. Tight integration with other modules of LIRA-SAPR software. Extensive database of steel tables and shapes of CIS, Europe and the USA. Steel tables of LIRA-SAPR program are open and the user could edit them.


Section of Bars
SB-SAPR (Section of Bar) module is a special graphic environment that contains tools to generate sections of arbitrary shape. This module contains solver that enables you to calculate flexural, torsion, shear and plastic section properties. It is possible to design complex section composed of simple ones. You can also import standard shapes from SRS-SAPR module. Logical (Boolean) addition and subtraction of plane figures are used to obtain section of arbitrary shape.
SB-SAPR module is integrated with VISOR-SAPR module. It is possible to generate section, export it to VISOR-SAPR and assign it to a certain element. You can also import to SB-SAPR forces obtained in analysis. This enables you to obtain distribution of stresses across the section – normal, shear, principal and equivalent stresses.


Section of Thin-walled Bars
STB-SAPR module is a special graphic environment that contains tools to generate thin-walled sections of arbitrary shape – open, closed, half-closed. This module contains solver that enables you to calculate sectorial and geometrical properties of the sections. You can also calculate coordinates for shear centre and centre of torsion. Diagrams of sectorial properties are generated.
STB-SAPR module is integrated with VISOR-SAPR module. It is possible to generate section, export it to VISOR-SAPR and assign it to a certain element. If there are any forces in the specified section, you could obtain plots for normal, shear, principal and equivalent stresses.


KM-SAPR module is mentioned to automatically generate the whole set of working drawings KM (for reference, it is called ‘drawings of steel structures’ in Russian).
According to the data imported from VISOR-SAPR module (design model, analysed and unified element sections, analysed and unified joints), design model is generated as well as lists of elements, drawings of joints, necessary notes, specifications. The user could make layout of drawings, arrange model presentations, separate items, tables and notes on the sheets of drawings.
In KM-SAPR module the user could import models from other graphical systems of steel structures (Bocad, RealSteel, AdvanceSteel).
The user could also analyse and design (incl. making drawings) wide range of joints of steel structures. New joints are added to the range all the time.


SOIL system is mentioned to automatically determine modulus of subgrade reaction that is variable across the foundation slab.
According to specified geologic data (location and parameters of boreholes) you will be able to generate 3D soil model. Vertical stresses are determined according to this model across the whole slab area. These stresses depend on loads on slab and neighbouring structures. The depth of compressible stratum as well as settlement is also calculated.
Settlements may be determined by linear elastic half-space according to SNIP 2.02.01-83* and SP 50-101- 2004.
Moduli of subgrade reaction are calculated by three methods.
You can recalculate soil pressure and subgrade moduli several times (iteration process).
It is also possible to view location of layers in arbitrary vertical and horizontal soil profiles, contour plots of subgrade moduli.
Values of subgrade moduli for every FE are automatically transmitted into the whole computer model for further analysis of structure together with soil.


ASSEMBLAGE-plus solver is mentioned to simulate erection of the structure and trace changes in the model.
It is possible to change stiffness parameters of elements at some stages of analysis. This might be useful if it is necessary to take into account progressive hardening of concrete or changes in strength and stiffness of reinforced concrete elements during freezing – defrosting.
At some stages of erection it is possible to perform analysis in physically and geometrically nonlinear statement.
In ASSEMBLAGE-plus solver you could simulate pretension of the structure (guy structures, anchors of sheet piling, etc.).
When simulating service life of the structure, analysis results obtained in ASSEMBLAGE-plus solver may be used for further analysis of the whole structure on service loads.


BRIDGE solver is mentioned to analyse bridge structures (beam, arc, guy, suspension) and enables you to get influence and surface lines of forces in specified section from moving load.
Based on obtained forces the user could compose design combinations of forces or design combinations of load cases (DCL).
Analysis results obtained in BRIDGE solver may be used in Engineer Assistance Package (Bridge Structures program). There you will be able to determine stresses and analyse strength and stability of separate parts of the structure. This analysis is performed according to modified forces obtained in framework of bridge.


Dynamics-plus solver (as opposed to dynamic analysis realized in linear solvers based on spectrum analysis methods) enables you to perform time history analysis of nonlinear deformed structures, e.g. structures with one-way restraints, physically nonlinear systems that have σ-ε relations in the shape of Prandtl diagrams. Direct integration method is realized. With Dynamics-plus solver you can simulate behaviour of nonlinear structures in time.
Dynamics-plus solver is mainly used for research purposes.

METEOR (Method of unified complete result)

Enhanced options for MODEL VARIATION system
New system that enables the user to merge problems with the same topology – nodal coordinates, FE model, geometry of sections. Problems may differ in load cases, stiffness and boundary conditions.
The merged problem will contain topology, stiffness, design options of the basic problem and analysis results of all problems. For such merged problem the user will define and calculate unified DCF. Design procedure is carried out according to these DCF by specified design options.


SAPFIR-RC module enables you to design and obtain working drawings of reinforcement, specification of reinforcement, bill of materials and list of elements for every floor slab.
According to analysis results of reinforcement, SAPFIR-RC module presents contour and mosaic plots of reinforcement as a background for the floor slab under consideration. It is also possible to define settings for result presentation palette and select principal reinforcement. In this case contour plots of reinforcement are modified automatically. On the background of these contour plots the user will arrange zones of additional reinforcement.

Configuration & Prices