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