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LIRA 9.4 (release from Dec 25, 2008)
Dec 26, 2008 Modifications to LIRA version 9.4 in comparison with release from July 10, 2008
Modified option: in DCL system components with coefficient 0 are not considered when program determines the sign of the total component from dynamic load.
Extended set of loads that may be imported from
STARK-ES to LIRA program (through *.sli file). Added option: module 47 for dynamic analysis according to building code for earthquake-resistant nuclear power plants NP-031-01.
Added option: module 48 for dynamic analysis according to building code of Tajikistan MKS CHT 22-07-2007.
Modified option: module 36 for dynamic analysis (DBN B.1.1-12:2006), type of structure 5 is added (Appendix E. Stability of slopes).
Added option: module 49 for dynamic analysis according to DBN draft project 'High-rise buildings'.
Modified option: activation time for analysis of problems with many concentrated loads on plate and bar elements.
Updated option: automatic assignment of FE type when transforming FE mesh from 4-node elements into 3-node elements for physically nonlinear wall-beam.
Added option: check whether maximum number of DCL exceeds 250 combinations.
Extended set of import-export objects between LIRA and STARK-ES through *.sli file. Perfectly rigid bodies may be imported/exported (AGT – in LIRA, ATT - in STARK-ES).
Added option: numerical values of forces are presented on mosaic plots for 1-node FE.
Modified option: check for stiffness properties of FE 53.
Modified option: account of coefficient Ke in analysis of soil FE.
Modified option: account of load factors for nonlinear load cases in analysis of problems with super-elements.
Modified dialog boxes for defining and assigning materials, selecting elements and polyfilters.
Enhanced export of determined reinforcement to
AllPlan. Modified procedure for defining min percentage of reinforcement in the module of reinforcement SHELL.
Modified graphic presentation of analysis results for zoom option on the model fragment.
Modified import of user-defined materials Bc-I, Bc-II, Ac-I, Ac-II from LIR-ARM to LIR-Larm.
Modified import of bar FE on elastic foundation from LIR-ARM to LIR-LARM.
Modified tracing routine. Brackets necessary for formulas are added.
Updated Help system for LIR-STC module in Russian/English.
Added option: 10 new files of steel tables for channel sections according to GOST 8240-97.
Enchanced analysis of column bases. Account of welds that fix column to slab.