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  Products Version History

LIRA 9.4 (release from April 21, 2008)

Apr 21, 2008 Modifications to LIRA version 9.4 in comparison with release from December 13, 2007

LIRA 9.4

  • Modified option: no delay when you switch to mode of results visualization for large models.
  • Added option: additional check during import of structural models:
      1. Local Z1-axis of plates (not vertical ones) is directed to the upper half space;
      2. Location of openings in plates is defined more exactly relative to medium surface;
      3. List of imported objects is extended.
  • Modified option: reading from *.DXF files that contain cyrillic symbols for files generated in AutoCAD versions 2007 and 2008.
  • More extensive set of parameters that are transmitted during geometric transformations of finite elements (intersection of blocks, division/merge of plate FE).
  • Added option: fragmentation of design model is saved during any option for editing design model (such as pack, add/modify nodes and elements, intersect blocks, etc.).
  • Added option: nodes and elements may be 'thrown together' on the fragment of design model.
  • Added option: account of shear for numerical definition of stiffness parameters for bars FE 2,3, and 5.
  • Enhanced work with coupled DOF.
  • Restored option: DCL names are displayed in the mode of analysis results visualization.
  • Added option: for DCL analysis according to DBN B.1.2 - 2:2006 it is possible to specify ratio of quasi-constant value of load to its characteristic value 'Pq / Pch'.
  • When you switch to the mode of analysis results visualization, flags of drawing are presented as they were assigned in the mode of generating design model.
  • Modified procedure: diagrams of forces for bars located almost at the vertical line.
  • Additional options for export to DEF-PC: The distance from the foundations to existing construction lines and angle of rotation of foundations are saved to the file "*." (without extension). Maximum number of foundations that may be exported is increased from 99 to 999.
  • Help system is added.


  • Added option: calculation according to SP 50-101-2004.
  • Added option: possibility to specify min depth of compressible stratum.
  • Added option: rocky ground may be defined (soil with modulus of elasticity >=100000 t/m2 is considered as rock).
  • Added option: account of weight of soil above the foundation base.


  • Modified analysis of section from steel pipes.


  • Modified calculation of very small sections (with overall dimensions up to 1-3 mm).

  • Printable version

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