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3. Spectral analysis
3.1 Presentation
The methodology of spectral analysis, commonly used in seismic studies, is similar to that of linear temporal analysis:
extraction of flexible modes ;
superposition of flexible modes ;
consideration of rigid modes (static correction).
However, there is a fundamental difference: the loading data of a spectral analysis, i.e. the spectra, are time-free (§ 3.2.1 ...
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Spectral analysis
Pseudo-static analysis
Bibliography
Software tools
PIPESTRESS version 3.8.0 (+ SPECT5 + THISTC + FHFILE6 + CREAHIST)
BEAMSTRESS version 1.2.0
Mathcad 2001
Accel_Art (calculation of an artificial earthquake accelerogram from a spectrum)
AppTdSS (transfer of earthquake spectra from a modal base)
Regulations
Eurocode 8 (NF EN 1998-1 of September 2005) "Part 1: General rules, seismic actions and rules for buildings".
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