Lira Group of Companies is pleased to announce its participation in the 4th International Scientific and Practical Conference on "Buildings and Structures of Special Purpose: Modern Materials and Constructions." The conference took place on April 26-27, 2023, in Kyiv and was organized by the Ministry of Education and Science of Ukraine, the Ministry of Defense of Ukraine, and the Academy of Construction of Ukraine.

Our company presented a report on the topic "Filtration in Geotechnical Design Problems," where Lead Engineer Irina Perepichai discussed the necessity of conducting filtration calculations in construction projects and provided examples of such calculations using Lira 10 software package. You can find the presentation of the report in the attached file.

We are grateful to the organizers for the opportunity to participate in this event. We take pride in our achievements and are always ready for new challenges!

We invite you to check out our video on the integration of Tekla Structures models with SP LIRA 10.12. Data exchange of a wide range is possible both thanks to the plugin and the publicly available IFC format. Using a simple model as an example, we tried to demonstrate in this video the basic steps for building a spatial scheme in Tekla, creating loads, transferring the model for the selection of steel cross sections in SP LIRA 10.12, and assigning the selected sections. The main principles of interaction between the two programs through the IFC format are also mentioned. The video is recorded in Ukrainian.

A webinar on the work of creating moving loads in the BRIDGE system has been published. The video demonstrates how the provisions of DBN V.1.2-15:2009 can be applied in SP LIRA 10.12 when modeling bridges. You can also learn how the results of the calculation of internal forces and displacements are formed and how they can be applied in the design. This video is in Ukrainian.

We invite you to watch the video tutorial about the peculiarities of pile calculation according to DBN B.2.1-10-2009. You will learn how to calculate the settlements, stiffnesses and pile’s bearing capacities depending on the pile driving features and soil conditions, using SP LIRA 10.12. If necessary, it’s also possible to view the sequence of actions needed for calculation of required reinforcement in each pile. This video is in Ukrainian. 

A video tutorial with step-by-step instructions on work with the LIRA 10 Software Package has been released for novice users. On the example of a reinforced concrete frame of a building, you will learn how to design a model, assign stiffnesses to the elements, apply loads, select reinforcement, and analyze the results of the calculation. This video is in Russian.

Для підтримки ініціативи відбудови міст, відновлення інфраструктури, пошкодженої внаслідок військової агресії, для сприяння діяльності будівельної сфери України, Група компаній ЛІРА встановлює до 25 січня 2023 року знижені тарифи 50% вартості на придбання та оновлення програмного комплексу ЛІРА 10.12.

Покупка ПК ЛІРА 10.12

Оновлення з ПК ЛІРА 10.10 до ПК ЛІРА 10.12

Оновлення з ПК ЛІРА 9.6-10.8 до ПК ЛІРА 10.12

Продовжуємо працювати!

Наша перемога в єдності та підтримці один одного!

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Запрошуємо вас переглянути демо-версію програмного комплексу ЛІРА 10.12.

Реєструйтеся на нашому сайті, щоб мати можливість вчасно отримувати новини!

Підписуйтесь на наш YouTube канал!

We invite you to watch the video tutorial on calculating of thermal conductivity problems. SP LIRA 10.12 allows you to calculate stationary and non-stationary heat flows with the possibility of accompanying calculation of the mechanical problem. This video will help you to understand the sequence of steps that need to be done to calculate temperatures, stresses and strains, as well as learn some tricks in special calculations, which are performed by transferring the temperature to the initial data. This video is in Ukrainian.

LIRA Group of Companies took part in the International Scientific and Technical Forum “Architecture and Construction: Restoration of Ukraine. Science, Technology, Practice” (2022), on November 17-18,  2022,  in the ONLINE format at the Kyiv National University of Construction and Architecture.

Scientific director Evzerov Isaak Danilovich, Doctor of Technical Sciences, made a presentation on the theme “Possibilities of SP LIRA 10 in the reconstruction and recovery of the infrastructure of Ukraine” at the plenary meeting.

We thank our partners for the opportunity to make a presentation and gather  together with other scientists from Ukraine and the countries of the European Union, sharing experiences and express opinions on actual problems in the architectural and construction industry, as well as their solution at the state and commercial level under martial law.

We must unite our efforts acting as one team and focus all our forces on fighting the external aggressor!

The key to our Victiry is Unity!

We offer to your attention a video tutorial on usage features of ASSEMBLAGE module in SP LIRA 10. The video discusses the construction and calculation of the assembly drawing of a multi-storey building with alternate construction of each floor and reinforcement proportioning, taking into account the characteristics of concrete hardening. An example with dynamic support extraction is shown. In a separate scheme, a nonlinear problem for the construction of a mine in the ground is considered. This video is in Ukrainian.

Video tutorial on calculation of cylindrical vertical steel reservoirs with liquid on seismic action has been posted on our channel. The main aspects and problems of the calculation of such objects are covered. Also an example of calculation in SP LIRA 10.12 of a typical liquid tank according to some criteria of strength and stability is shown, considering recommendations of EN 1998-4: Eurocode 8 and acceleration response spectra as an incoming seismic action. This video is in Russian.

We offer to your attention a video tutorial on preparing and importing a model from the *.dxf format (AutoCAD) into SP LIRA 10. In particular, we show how to create model geometry in the AutoCAD environment, assign cross sections, materials, loadings and loads for further successful import into SP LIRA 10 and subsequent calculations. This video is in Ukrainian.

Video tutorial on calculation of steel structures according to Eurocode have been posted on our channel. The video shows some of the theoretical aspects that are included in the design calculations. An example in SP LIRA 10.12 on creating design parameters and checking and proportioning of optimal metal cross sections is also considered. Some other related aspects are also described. For your convenience, time codes have been added to the video description. This video is in Russian.

We would like to bring to your attention the updated verification tests in the section SP LIRA → Verification.

Discover more then 50 tests with different types of finite elements and types of structural analysis, that you may face while performing engineering projects. Over time, the number of such tests will be replenished.

In these tests, the results of SP LIRA 10 calculation are compared with analytical solutions and results, obtained using other programs from the segment of finite element analysis.

On this page, in addition to viewing problems, you can also download the archive for the corresponding test with the calculation model of SP LIRA 10 in *.fep format, by which you can trace the principle of model creation.

Besides checking the accuracy of performing certain types of problems, these tests and the models attached to them can also be used for self-study to perform many types of analysis.

Please note that most of the presented problems can be calculated in the demo version of SP LIRA 10.

A video tutorial about the creating of grids of complex shape in the Gmsh program for their further transfer to SP LIRA 10 has been published. Gmsh is a free and open source program distributed under the GNU General Public License. The main Gmsh tool, the use of which complements effective modeling in SP LIRA 10, is splitting 3D models into a finite element mesh, which can be imported then for further calculations using the finite element method. The video is recorded in Ukrainian

We invite you to watch the video tutorial on calculation of filtration in soils, namely, the determination of seepage velocity, pore pressure, stresses and positions of phreatic surfaces. Such calculations are made for dams, pits, underground tunnels, drain shafts, etc. The video shows the features of the construction and calculation of a nonhomogeneous dam with drainage systems in a plane problem, as well as modeling of filtration processes for a homogeneous dam in 3D setting. The video is recorded in Ukrainian. 

Video course on calculation of reinforced concrete structures according to DSTU is published on our channel. The course is globally divided into three parts. The first video tutorial is devoted to the construction of the scheme geometry, the application of loads and the arrangement of internal forces combinations. The second part gives an understanding of how exactly the algorithms for calculating reinforced concrete structures are implemented in SP LIRA 10  and how they can be controlled. The third video tutorial will help you to better understand the methods of nonlinear calculations of buildings on Ultimate Limit State and Serviceability Limit State. In addition, the video course includes many indirect issues considering understanding of certain points of regulatory documents and techniques, and how to implement them in the program when modeling your scheme. You can track a more detailed plan of each video by the time codes and, if necessary, watch only that part of the lesson that you consider useful. The video is recorded in Ukrainian.

We encourage you to watch the video tutorial about the plug-in for import/export of geometric model from Advance Steel to SP LIRA 10 and vice versa. This lesson shows an example of the selection of steel rolled metal profiles in SP LIRA 10 with further import to Advance Steel. The synchronization of databases of rolled steel and material between the two programs is also considered. Video recorded in Ukrainian.

We offer to your attention the video tutorial on linear and nonlinear calculation of steelwork for seismic effects, which are given as a three-component accelerogram. Some aspects of modeling that may be useful to you when modeling structures for dynamic actions are also considered. Video recorded in Russian.

We invite you to watch the video tutorial on calculation of cable systems and structures, which are strongly deformed under the influence of loads. Such systems should be calculated in a geometrically nonlinear formulation. Some designs can work even after local buckling – after they get a new form of equilibrium state. The video shows examples of the calculation of such systems as opposed to linear calculations. Video recorded in Ukrainian.

Dear Colleagues!

LIRA Group of Companies publishes freely available video materials, which can help you improve your skills in working with SP LIRA 10, as well as master some unique tools for solving non-standard problems in your engineering practice. Situations often arise when an engineer simultaneously needs to apply knowledge from different technical fields.

In particular, write their own program code, which allows to get and manage suitable data from standard results of finite element method solutions. We offer to your attention tutorial videos with examples. If you are an engineer with junior-programmer skills, these videos will help you to be competitive and effectively put the knowledge gained into practice.

The first video contains information on User Results, namely, displaying your own result mosaic in accordance with the written mathematical operations on standard results. The second video will help you to create your own LiraAPI applications using C# programming language. So you can launch these applications directly from the program and use SP LIRA 10 results tables as input data.

LIRA Group of Companies took part in the scientific and practical interdisciplinary forum «We will win, we will rebuild!» on June 29-30, 2022, in Dnipro city, Ukraine.

The event was held with the support of Ministry of Education and Science of Ukraine, Council of Rectors of Higher Education Institutions of Dnepropetrovsk region, SHEI «Prydniprovs'ka State Academy of Civil Engineering and Architecture», The Dnipropetrovs'k region Federation of Employers' Organisations, Academy of Construction of Ukraine.

Laureate of the State Prize of Ukraine for Science and Technology, author of Software Package LIRA 10, Doctor of Technical Sciences Evzerov Isaak Danilovich thanked everyone who, in these difficult times, stands together and acts united, mobilizing all the forces to support the country!

LIRA Group of Companies continues to work and contribute to the creation of the future. We support the initiative to rebuild the cities of Ukraine and we are ready for cooperation and discussion of organizational and technical solutions to strengthen the defense capability of our country, restore infrastructure, destroyed as a result of military aggression, intensification of further scientific, technical, economic and social development of Ukraine.

We must unite our efforts acting as one team and focus all our forces on fighting the external aggressor. We must support our economy, create new employment and work towards a common goal – prosperity of Ukraine and financing of the Armed Forces of Ukraine!

We thank the organizers of the SCIENTIFIC AND PRACTICAL FORUM «WE WILL WIN, WE WILL REBUILD!», SHEI Prydniprovs'ka State Academy of Civil Engineering and Architecture», for the opportunity to share experiences and express opinions by gathering together with other representatives of science, education, buildings and industries.

The key to our Victiry is Unity!

With the release of LIRA 10.12, the cost of updating from previous versions will change

• The upgrade cost will double for versions 10.6, 10.4, 10.2, 10.0, 9.6, 9.4, 9.2 and will amount to 40% of the total license cost instead of 20%.
• The upgrade cost from 10.8 will remain unchanged until May 31, 2021.
• From June 1, the cost of renewal will be 40% instead of 20%.
• The update cost for LIRA 10.10 users after the release of 10.12 will remain unchanged - 20%.

The new release of software package for structural modeling and analysis using finite element method (FEM) has been released – SP LIRA 10.4 R3.0

More than 12 innovations in SP LIRA 10.0