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Dec 13, 2007 Modifications to LIRA version 9.4 in comparison with release from May 14, 2007
LIRA 9.4 supports Windows Vista.
Modified structure of directories: databases and settings files of LIRA 9.4 are placed in separate directories that may be defined by the user.
Help system of the program is presented in *.chm format.
Program interface of LIRA 9.4 is translated into French.
Updated Tutorial and 3 new examples are included.
Added option: import model from Revit Structure 2008 with automatic division into finite elements.
Added option: automatic change of decimal symbol to '.'
Modified definition of stiffness parameters for FE 5, FE 10, arbitrary section and arbitrary thin-walled section (RU_Y and RU_Z - projections of distance between gravity centre and shear centre of the section).
Increased accuracy for loads such as 'Initial displacement' and 'Initial rotation'.
Improved switch to visualization of stability analysis results.
Added option: calculation of principal and equivalent stresses for physically nonlinear solids and physically nonlinear elements of wall-beams.
Modified option: definition of distributed loads on solids.
Added options: during generating standard tables 'Reactions on fragment' the program takes into account specified measurement units, information about input data of the current analysis (lists of nodes and elements).
Enhanced export to DEF-PC software
1. The program generates additional file "*." (without extension) with information about location of foundations relative to construction axes;
2. The program generates "*.p" file with information about types of foundations;
3. Maximum number of foundations in the complex is extended from 30 up to 99.
Length of problem description is extended up to 256 characters.
Toolbars are restored when dimensions of the main window are changed.
When SOIL system is activated from LIR-VISOR module, 'Do not refresh loads on soil' option is added.
Added option: file of analysis parameteres is now associated with problem name (.cfg).
Added option: the third strength criteria in shear (Coulomb-Mohr criterion) for physically nonlinear solids of 'soil' (FE 271-276).
Added option: list of finite elements not included in stability analysis.
Added option: new steel tables of cold-formed channel sections and angle sections.
Enchanced work with large models.
Enchances analysis of reinforcement in bar elements according to SNIP 52-01-2003.
Import of unification groups from strength analysis.