Rhino/Grasshopper and SAPFIR module will interact directly through this plugin to create and edit the BIM model. It may be done with Grasshopper visual script interface. The live and associative interaction allows the user to create projects of different complexity.



Heat transfer analysis is a very important part in determining the fire resistance of a structure.


Accounting of earthquake effect assumes that the structure resists passively through the combination of strength, deformation and energy absorption. The damping level of such a system is usually very low and therefore the energy dissipation value of such a system in elastic behavior is also low. During the strong earthquake the def...


For the first time designers can use the given real arrangement of reinforcement as for calculations of physical, geometrical and engineering nonlinearity, and for check of bearing capacity of sections of bar and plate elements according to operating normative documents.


  • 18 September 2020
  • LIRALAND

Packing a model

  • 18 September 2020
  • LIRALAND

Packing a model

In the process of creating a model, sometimes user has to repeatedly delete some elements and then add others.


  • 18 September 2020
  • LIRALAND

Element Type Assignment

  • 18 September 2020
  • LIRALAND

Element Type Assignment

After creating a model, it is recommended to check the type of elements.


LIRA-FEM software imports construction axes, walls, slabs, columns, and beams from DXF text files. To import these objects to the application, they should be represented by a specific object and belong to a layer with a predefined name.


  • 16 September 2020
  • LIRALAND

Information about model components

  • 16 September 2020
  • LIRALAND

Information about model components

In LIRA SAPR, a command Information about nodes and elements can be found on the Select toolbar. It allows not only to get the full information about all components of the model but also to edit many of them.


  • 15 September 2020
  • LIRALAND

Restraints Assignment

  • 15 September 2020
  • LIRALAND

Restraints Assignment

The construction being designed should be fixed in the space, so the user should select the nodes to be fixed and the directions they should be fixed.


To run any command on objects included in the design scheme (deletion, stiffness assignment, application of loads, etc.), first of all you must point to the corresponding objects by selecting them from the general scheme. To delete the object, it is necessary to indicate it (further, the operation of selecting model objects will be...


After the installation of the LIRA SAPR application on your personal computer, launch it by left mouse double-clicking on the shortcut icon (during the installation keep the path to the Program Files folder as suggested by default C:\Program Files\LIRA SAPR\LIRA SAPR 2020).


Let us consider an example of analysis of heat transfer of a brick house external wall.


  • 28 August 2020
  • LIRALAND

Heat Transfer Analysis

  • 28 August 2020
  • LIRALAND

Heat Transfer Analysis

In heat transfer analysis, temperature in analytical model nodes is unknown (similar to displacement in structural analysis). Consequently, the equilibrium equation may be written as


  • 7 August 2020
  • LIRALAND

LIRA-CAD Lesson 6: Reinforcement

  • 7 August 2020
  • LIRALAND

LIRA-CAD Lesson 6: Reinforcement

In this video guide, we will arrange reinforcement in the slab.


In this video guide, we will export our project to LIRA-SAPR, analyze scheme and import results of reinforcement to LIRA-CAD.


In this video guide, we will set the appropriate data for further analysis.


In this video guide, we will complete the creation of architectural model of multi-storey building.


In this video guide, we will start the creation of multi-storey building.


In this video guide, we will learn the interface of the program LIRA-CAD, and also perform the calculation of the beam on two supports with a uniformly distributed load.