RC Expert

LIRA-FEM 2026 R1 Last updated: Jun 09, 2026 23:42:15
  • The RC Expert module is now integrated into LIRA-FEM. This allows performing alternative verification of reinforced concrete elements directly within the LIRA-FEM environment.

    The tool provides a full cycle of working with expert data: creating input data, assigning them to finite elements, running checks, and convenient viewing of analysis results. Specialized commands are available for the user, mosaic plots for input data control, viewing internal forces, displaying verification results, and tracing utilization factors.

    The system supports working with design problems, property sets, calculation materials, types of design objects, and design options. This enables engineers to use familiar logic when working with the calculation model while expanding the possibilities for reinforced concrete verification.

    The tracing routine option allows detailed evaluation of each stage of analysis, ensuring high transparency and reliability of results.

Mosaic of utilization factors for plates

Mosaic plots of utilization factors for plates
  • Added new parametric profile shapes for modeling concrete in bar elements: symmetric and asymmetric T-sections (flange up and down), I-beam, channel, box, circular tube, angle. Support for these new shapes has been added in existing checks for normal section strength and crack resistance.
  • Added new types of checks for bar elements: shear force and torsional moment according to EN 1992-1-1:2004+A1:2014, DBN V.2.6-98:2009.

    New checks consider the actual arrangement of transverse reinforcement bars, allowing analysis of the contribution of individual bars to structural capacity — this enables modeling of irregular or locally damaged reinforcement.

New types of checks for bar elements in RC Expert System

New types of checks for bar elements in RC Expert module
  • Improved user interface for input data assignment. Added a new dialog Overview of calculation sections, which allows displaying the composition of the selected cross-section of the structure.

Overview of calculation sections in RC Expert System

Overview of design sections in RC Expert module