On February 11, 2025, the LIRA Group of Companies successfully held an author’s webinar on the topic: «Calculation of structures on blast wave impact».

https://youtu.be/Iacgg3-PNC8

This topic is extremely important for Ukraine due to current challenges in the field of safety, and also due to the need to improve the reliability and robustness of civil structures and critical infrastructure facilities.

During this webinar, all the participants received useful recommendations and helpful tools from the experts, who have a deep understanding of how to take blast loads into account during the design process. Speakers addressed in detail the following important issues:

• The impact of various types of explosions on structures.

• Methods for modeling of time-varying dynamic loads caused by blast wave: direct dynamic analysis and spectral method.

• Modern approaches to dynamic calculations using the finite element method.

• Regulatory base of Ukraine and international practices to account for blast impacts.

A special moment of the webinar was the prize draw for a free one-year Full-license to use the software package LIRA 10.14, the winner of which has become Vita Fuychak.

All registered participants of the webinar will have the opportunity to take advantage of a special offer in the form of a 20% discount on the purchase of SP LIRA 10.14 or on the exchange of previous versions of SP LIRA within two months from the date of registration.

To be informed about all our upcoming events, we recommend you to register on our website.

Once again we would like to thank all participants for your activity and interest in SP LIRA!

Dear colleagues!

LIRA group of companies invites you to take part in a webinar:
"CALCULATION OF STRUCTURES FOR BLAST WAVE IMPACT"

• Date: February 11, 2025

• Time: 11:00 (GMT+2)

• Duration: 1 hour 20 min + answers to questions

• Platform: ZOOM

• Participation: free of charge     Registration is required!!!

• Language: ukrainian

LIRA Group of Companies participated in the International Scientific and Technical Forum “Architecture, Construction, Design: Technology, Energy, Management”, which is held on October 16-17, 2024 in the Kyiv National University of Construction and Architecture (KNUCA).

The main goal and mission of this forum is to exchange the experience between scientists from Ukraine and the European Union in addressing the impact of new factors on the construction industry, both at the state and commercial levels.

Thematic conferences were organized within the framework of this forum. The aim of these conferences is to cover and combine all the topics discussed during this forum into a single socio-cultural scientific and technical system. Our colleagues also presented their reports during this forum.

Leading Engineer, Iryna Perepichay, presented her report “Design and calculations with BIM in LIRA 10”.

We are very grateful to the conference organizers for their cooperation, actuality of the presented reports and for the opportunity to participate in joint discussions.

We wish to everyone who contributed to the idea of this Conference and its participants the proper conditions for the development of science, education and society as a whole.

LIRA Group of Companies participated in the VI International Conference “Prospects for Innovations in Nuclear Energy” held in Kyiv at the Great Conference Hall of the National Academy of Sciences of Ukraine on September 26-27, 2024.

We listened to the presentations of our colleagues about the current state of nuclear energy and researches in Ukraine and globally.

We have discussed innovations for sustainable development of the nuclear industry, innovations for sustainable development and improving the safety of NUCLEAR POWER PLANTS, innovative nuclear technologies and prospects for their introduction, threats and challenges affecting the reliability and safety of the nuclear industry in war conditions.

We are grateful to the organizers of the conference for the relevance of the content of the prepared presentations and for the opportunity to participate in joint discussions.

We wish to everyone who contributed to the idea of this Conference and its participants the proper conditions for the development of science and society as a whole.

Thank you for your cooperation!

We are glad to inform you that SP LIRA 10 has been successfully verified at the JSC “NNEGC “ENERGOATOM”. Based on the SNRIU letter No. 15-22/9380-8380 dated 26.07.2024 the SP LIRA 10 has been included in the list of software tools for justification of safety of nuclear facilities in accordance with the standard STP 0.41.076-2008 “Safety analysis and assessment. The procedure for using design codes to justify safety of nuclear power plants. Methodical instructions”.

It indicates that SP LIRA 10 is officially recognized as a software tool allowing performing calculations of nuclear power objects.

SP LIRA 10 has been verified to perform stress-strain state calculations for building structures of nuclear power objects under static and dynamic loads in linear and nonlinear formulations in the modes of normal operation, violation of normal operation conditions and design basis accident.

The given software tool allows you to solve the following classes of problems:

• linear static and dynamic problems;
• determination of frequencies and forms of natural oscillations;
• linear calculation of buckling with determination of eigenvalues and eigenvectors;
• physically nonlinear static and dynamic problems of elastic-plastic calculation for metal and reinforced concrete structures;
• geometrically nonlinear static and dynamic problems of calculation of guy ropes, membranes, bars and plates;
• geometrically nonlinear problems after buckling with the search for new forms of equilibrium;
• static and dynamic structurally nonlinear problems with one-sided limitations;
• calculation of progressive destruction;
• calculation of seismic actions by applying the linear spectral method, as well as earthquake accelerogram and seismogram in linear and nonlinear formulation;
• determination of floor response spectra of the structure;
• interaction between the building and soil foundations;
• design calculations of reinforced concrete, metal and wooden structures.

LIRA Group of Companies took part in the international scientific and technical conference “Modern Structures of Metal and Wood” held on June 13-15, 2024 in Odesa State Academy of Civil Engineering and Architecture.

The Head of the Department of Automation of Calculations of Metal Structures, Mr. Movshovich Y.D. and the Leading Engineer of the Department of Automation of Calculations of Metal Structures, Mr. Yevdokimov Y.V. have prepared a report on the topic “Checking the Overall Stability of Steel Elements of Variable Cross-Section in Accordance with DBN V.2.6-198:2014 Using Variable Design Length in SP LIRA 10”.

You can find the video of this report on our youtube channel.

LIRA Group of Companies participated in the International Scientific and Technical Forum “Architecture, Design and Construction: Innovative Technologies” held on November 15-16, 2023 in Kyiv National University of Construction and Architecture (KNUCA)

The main objective and mission of the forum was to share the experience of scientists in solving urgent problems in the architectural and construction industry and in design, at the state and commercial levels in the conditions of the State of war

A plenary session was organized during the forum, where the report of the scientific supervisor, D. Sc. Yevzerov I. on "SP LIRA 10 in the restoration and reconstruction of Ukrainian infrastructure" was presented

Thematic conferences were organized within the framework of the forum, during which the reports of our colleagues were also presented. The Executive Director, PhD. Geraymovich Yu. made a report on "Further development of the CROSS-SECTION module in LIRA 10 software package"”, and Leading Engineer, Perepichay I. presented a report on "ВІМ integration in SP LIRA 10"

We would like to express our gratitude to the organizers of the conference for cooperation, the actuality of the content of the presented reports and the opportunity for joint discussion

We wish all those who shared the idea to hold the conference and its participants proper conditions for the development of science, education and society as a whole

We invite you to see our video note on three-branch metal cross-sections. You can learn about the features of such truss structures, their advantages, disadvantages, as well as features of modeling and calculation. These types of structures can be modeled via one rod in SP LIRA 10. It, in turn, allows you to make quickly preliminary modeling and calculations with cross-section selection in similar schemes using simplified procedure, as well as fully perform flexibility checks in accordance with the requirements of the standards.

Video tutorial on calculation of timber 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 of timber cross sections and deflections 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.

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!

Відправити онлайн заявку на покупку можна за допомогою форми або звернутися напряму до відділу маркетингу.

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