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«LIRA 10» software package is a whole new level of tools for computational studies of strength, dynamics and stability of the structures.
Single graphical environment
All SP LIRA 10.12 modules — ASSEMBLAGE, DYNAMICS+, THERMAL CONDUCTIVITY, FILTRATION, BRIDGE, PUSHOVER, CROSS SECTION, SOIL, structural design systems, cross section designer, documentation system, analysis and control of results — work in a single integrated environment.
This allows you to significantly save time both when building a model and when creating a report. The object data model is always ready for any changes, additions and modifications.
Elements of BIM technologies and connection with other calculation systems
Calculations become part of a unified information model through the integration with the following platforms: Autodesk Revit, Tekla Structures, Autodesk Advance Steel, Renga Structure, PLAXIS 3D.
Additionally, import and export of models is also possible on the basis of a variety of universal and field-specific formats. Among the implemented formats (*.dxf; *.msh; *.mesh; *.stl; *.obj; *.mesh; *.off; *.poly; *.dxf; *.igs; *.3ds; *.neu; *.byu; *.ifc; *.sdnf, *.docx; *.xlsx; *.pptx; *.html; *.bmp; *.gif; *.png; *.jpeg; *.tiff; *.avi and many others) you will definitely find the one that will be useful for you.
Architectural elements
Accelerate the process of creating a design model, provide an opportunity to create a model without mandatory triangulation and provide wide opportunities to import and export various objects from other programs.
Using architectural elements, you can model a floor, wall, beam, column without breaking them into finite elements (with one element), to perform the transition to the finite element model (triangulation can be done during the calculation). If necessary, a set of finite elements can be converted back into an architectural element. This all allows you to reduce the time spent when adjusting the calculation model, as well as import data from other programs without automatic triangulation into finite elements.
Client orientation
LIRA 10 software package is light and easy to learn. All training materials, including instructions, help, notes, reports and video tutorials are publicly available.
Most of the program features that are necessary for training are available in a free demo version. This allows you to learn the program on your own at a sufficient level without preliminary financial and organizational expenses. The program is constantly being improved, the development takes into account most of the users' wishes. We provide technical support for our users. We will always help you in solving problems and propose approaches to solve technical problems of different complexity.
A set of tools enabling users to independently create separate sets of commands and applications, working inside the SP LIRA 10 limits and allowing to automate monotonous operations.
The user can create custom scripts to display graphical calculation results in the form of isofields, diagrams and graphs; to use scripts to form fragments of the design model and assign loads; to perform table and graphical editing of geometry and properties of the design model; run open model for developing custom software modules (LiraApi).
Documentation system
This is a full set of document patterns with standard contents and plugged in hints regarding its filling in, sorted hierarchically.
It's intended for evaluation of calculation results (tables with an option of indicating and marking on the model, histograms and high-definition images of fragments of the structure), and for generation of a walk-through report by the user, which is filled with table data, images and text. There was implemented a report output in analytical form upon all limit states for checking of steel and wooden structures.
SP «LIRA 10» is based on complex mathematical models and systems, which include:
Physical nonlinearity
Implemented based on various nonlinear relationships σ-ε, providing the opportunity for computer simulation of loading process of mono- and bimaterial structures, with tracing of crack development, yield and creep strains development, up to obtaining the fracture pattern of the structure.
As a separate type, within the framework of physically nonlinear problems, problems of constructive nonlinearity, simulating friction, one-sided links with a gap, one-sided elastic foundation etc. can also be solved.
Geometrical nonlinearity
Consideration of geometrical nonlinearity allows you to perform evaluation of originally stable structures (slender plates and beams, slender trusses, etc.) and substatic ones (cables, cable-stayed trusses, cable-stayed roofs, tents, membranes, etc.),
and for their analysis equilibrium shape for specified load has to be determined.
Assemblage module
Allows to track state of stress of the structure during its erection process, repetitive change of design model, mounting and removal of temporary supports, etc.
This module also allows to perform computer simulation of erection of high-rise buildings made of insitu reinforced concrete considering varying stiffness and concrete strength, initiated by temporary freezing of a cast mixture or other factors.
Bridge module
Allows to construct the influence surfaces, assign arbitrary motion paths of moving loads,
determine critical forces due to moving loads and combination of forces due to static and moving loads.
It is used for evaluation of structure behavior under seismic actions beyond elastic limit.
This method connects bearing capacity spectrum and seismic requirement given as a response spectrum. Intersection point of bearing capacity curve and response spectrum curve — dynamic equilibrium — is evaluated and it's used for evaluation of expected behavior of the structure.
Thermal conductivity module
Designed to solve problems of stationary or non-stationary thermal conductivity in a linear formulation
to further determination of stress-strain behavior from the effect of calculated temperature change. Non-stationary thermal conductivity problems are solved together with the problems of Dynamics+.
DYNAMICS+ module
Allows to perform structural analysis of any complexity for various dynamic actions in time, including consideration of nonlinearity.
Analysis can be carried out for accelerograms, seismograms, explosion and other dynamic actions.
Filtration module
Allows you to calculate the pressure field and ground water filtration velocity in design models with arbitrary geometry
to further determination of phreatic surface and stress-strain behavior from the action of calculated pore pressure.
Cross section module
Designed to determine the elastic-geometric characteristics of composite cross sections of bars of arbitrary shape.
Variation of models
Allows to combine the results of several design models with identical topology.
Results merging can be performed at a level of unification of already computed DCF and at a level of merging of computed internal forces and displacements due to loadings in different problems, with further evaluation of DCF and DCL. Resultant DCF and DCL can be used for calculation in structural design systems. In terms of single analysis, it allows to variate not only the load (traditional analysis), but also stiffness properties and boundary conditions, etc.
Soil module
Allows to set geological conditions of construction site for consideration of interaction between the structure and foundation soil.
By set geological conditions, the automatic generation of soil model under designed building is performed, with further evaluation of coefficients of subgrade reaction of plate foundations, as well as stiffnesses and bearing capacities of piles. There was implemented the possibility to convert bearing reaction of soil into soil loading for adjustment of coefficients of subgrade reaction of plate foundations and piles.
Structural design systems
Structural design systems allow you to design steel, wooden and reinforced concrete structures.
There is a possibility to work both in the mode of checking the specified steel, wooden and reinforced concrete cross sections, and in the mode of proportioning the desired cross section for steel elements and the required reinforcement area for reinforced concrete elements. The results of the proportioning and checking of structural design systems are displayed in the form of tables, mosaics, diagrams, and isofields. In the calculation mode for steel and wooden structures of a specific element, you can get the calculation protocol in symbolic form, as well as with substituted values, which allows you to check the results obtained.
«LIRA 10» software package is a brand new system, that brings all needed tool kit for design engineer without additional satellite applications, and, naturally, without additional spendings.