* The new name of the 'LIRA-SAPR' software LIRA-FEM: Why?

Eurocodes (EN)

Dynamic analysis of structures

Example of a mode shape

Example of a mode shape

In LIRA-FEM (LIRA-SAPR) software the analysis of structures for dynamic effects is implemented by two methods: spectral method and direct integration method.

Analysis options

In LIRA-FEM software it is possible to perform analysis for seismic, pulsation, shock, impulse and many other dynamic effects.

Results of dynamic analysis by spectral method

Results of dynamic analysis by spectral method

The results of the dynamic analysis by spectral method are the deformed shapes that are the most unfavourable mode shapes. The deformed shapes are involved in the DCL and DCF analysis as separate load cases. The periods of variations can be viewed in tabular form.

The results of the dynamic analysis using the direct integration method are the SSS of the structure at each time mark.

List of implemented norms for seimic analysis using the spectral method

DBN V.1.1-12:2014 (Ukraine)
DBN V.2.2-24:2009 (Ukraine)
DBN V.1.1-12:2006 (Ukraine)
DBN V.1.1-12:2006, Annex C taking into account non-uniform ground vibrations (Ukraine)
DBN V.1.1-12:2006, Annex D taking into account torsion (Ukraine)
SP RK EN 1998-1:2004/2012, NTP RK 08-01.1-2017 (Kazakhstan)
SP RK 2.03-30-2017 (Kazakhstan)
SNiP RK 2.03-30-2006 (Kazakhstan)

EN 1998-1:2004 (EU)
TBEC-2018 (Turkey)
AzDTN 2.3-1 2010 y. (Azerbaijan)
PN 01.01-09 (Georgia (Sakartvelo)
NF P 06-013 (France)
IBC-2006/ASCE 7-05 (USA)
SNRA II-6.02-2006 (Armenia)
KMK 2.01.03-96 (Uzbekistan)
MKS ChT 22-07-2007 (Tajikistan)
SNiP KR 20-02:2009 (Kyrgyzstan)
SN KR 20-02:2018 (Kyrgyzstan)

SNT 2.01.08-99* (Turkmenistan)
RPA 99 / version 2003 (Algeria)
SNiP II-7-81* (USSR)
SNiP II-7-81* with changes 01.01.1996 (USSR)
SNiP II-7-81* with changes 01.01.2000 taking into account torsion (USSR)
SP 14.13330.2014/2018 (RF)
SP 14.13330.2018 with changes No.1 (RF)
MGSN 4.19-05 (RF, Moscow)
SNiP II-7-81* with changes 01.01.2000 / SP 14.13330.2011 (RF)
NP 031-01 for NPP (RF)

List of implemented standards for wind pulsation analysis using the spectral method

SNiP 2.01.07-85* (USSR)
SP 20.13330.2011/2016 (RF)
SP 20.13330.2011/2016 (with changes No.1) (RF)

Time history analysis

Simulation the process of dynamic loading according to accelerograms, determination of forces and displacements at certain time periods, taking into account damping structures and material damping.

Linear processor

Static analysis, FE library, complete dynamic analysis, floor (nodal) response spectrum, seismic, wind pulsation, super-elements. This is included in all default configurations of LIRA-FEM software.

Nonlinear processor

Engineering nonlinearity, physical nonlinearity, structural nonlinearity, geometric nonlinearity, pushover analysis.

LIRA-FEM's prices

Image Description — Example

Example of modelling and analysis of a tower

Procedure for generation the design scheme of a metal tower; specifying the wind pulse effect; load on fragment analysis.

Download example *.zip

Image Description — Example

Example of seismic analysis

Analysis of the spatial frame of a building with a foundation slab on an elastic base.

Download example *.zip

Image Description — Example

Example of seismic analysis

Analysis of structures with changing stiffness of the ground base (using the METEOR system).

Download example *.zip

Evaluate the software

If you have any doubt, download the Demo version and evaluate the program or contact our Support Team for more details.

Demo version or Request online presentation

Configuration & Prices

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