In Tekla Structures it is possible to generate analysis model that includes bars, plates, loads and boundary conditions. LIRA-FEM program supports two-way integration with Tekla Structures.

• BIM
• Tekla Structures
• IFC
• import
• export

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.

• BIM
• ''''''-'''''''''
• Grasshopper
• Rhinoceros

Step-by-step guide for novice users of the LIRA-FEM software, which reveals the basics of finite element analysis.

The stress–strain state of a ring plate (subjected to a uniformly distributed transverse load) with hinged supports.

The stress state of a triangular dam of unit thickness in Cartesian coordinates under the self weight and hydrostatic pressure

The square panel in a flat‑slab structure, rigidly connected to a column of circular cross‑section, under a uniformly distributed transverse load

Cylindrical body, free from restraints, subjected to a uniform longitudinal load distributed over the ends

Cylindrical shell with free ends under a temperature gradient through its thickness

Drifts are used to evaluate the relative horizontal displacements of a structure, in particular to check storey drifts under seismic actions. In LIRA-FEM, drift is determined for a specified pair of nodes as the ratio of the difference between their horizontal displacement vectors to the distance between the nodes. Node pairs can b...

LIRA-FEM supports several licensing models, allowing you to choose the most suitable option for individual use, companies, or educational institutions.

Using CodeMeter Control Center, you can activate software licenses, update CodeMeter USB dongles, create license request files, import received license files, and view the contents of activated licenses.

Two-rib beam subjected to uniformly distributed loads applied in the plane of the ribs

Subscription activation guide via LIRALAND License Manager.
Learn how to sign in to your account, confirm the application launch, and activate your subscription to start using LIRALAND products.

The stress–strain state of a beam (on an elastic horizontal foundation) under the concentrated vertical forces.

If the design model is too large, it can be convenient to organize a recursive analysis by partitioning the entire system into subsystems—super-elements (SE). This approach works well when the subdivision is natural: for example, a building composed of volumetric blocks (each volumetric block is a super-element) or ...

The LIRA-FEM version 2025 will use a different protection from Wibu-Systems AG, a German business. The page provides setup instructions for the CodeMeter network license server along with general details about key types.

Recommendations for the optimal computer configuration for the LIRA-FEM program in terms of price/quality. Relevance as of December 2024.

This paper explores two main methods of running LIRA-FEM on a Mac: virtualization through Parallels Desktop for M-series processors and using Boot Camp for Macs with Intel processors. We will go over the benefits and drawbacks of each approach. Finally, we'll include a detailed installation tutorial for LIRA-FEM using Parallels...

Suppose we have to make the automatically generated PR types come from the LIRA-CAD module to the LIRA-FEM program; in these PR types, the reinforcement pattern is arranged in two layers.

The article describes how to model thermal loads in SAPFIR. To model the thermal loads in LIRA-CAD module of the program, use the specialised tools available on the "Analytics" tab, on the "Analytical load" panel, in the "Loads" drop-down list.

The "Moving load" tool is mentioned to specify traffic loads on different types of structures: stylobate pavement, floor slabs of parking, bridge structures, motorways, etc.

For various purposes it can be useful to model the soil pressure on the basement walls. The commands necessary for this purpose are presented on the "Create" tab, "Loads" panel.

The construction of finite element meshes is an important stage of solving the problem of determining the SSS of structures. This stage is associated with satisfaction of a number of contradictory requirements.

LIRA-FEM plugin in Revit helps our users to transfer model directly to LIRA-FEM or via SAPFIR, perform analysis and return reinforcement results back in Revit.

This is one of webinars series presented by LIRALAND for LIRA-FEM structural analysis software.
In this recorded webinar, we review BIM integration on the base of IFC file from REVIT.

This video shows how to collect snow load automatically and to apply snow mound in LIRA-CAD.