Sisma (annual license)

Estimating the design earthquake:
probabilistic analysis (Cornell method);
historical-statistical analysis.

Seismic parameters through analysis of an accelerogram :
Arias intensity;
Saragoni factor;
significant duration;
cumulative absolute velocity and displacement;
Fajfar Index.

 S-wave velocity by SPT and CPT:
Otha & Goto (1978);
Imai (1977);
Lee (1990);
Muzzi (1984).
CPT:
Barrow & Stokoe (1983);
Mayne & Rix (1995).

Seismic site classification:
site rigidity method ;
shear wave method ;
Eurocode 8 (1994);
Eurocode 8 (2003).

Calculation of the soil resonance period:
Vs weighted average;
natural period sum;
linear approximation of the fundamental modal form;
simplified Rayleigh method.

Assessment of the seismic site effects:
soil amplification: Midorikawa (1987);
soil amplification: Boore & Atkinson (2008);
soil amplification: 1D transfer function (Schnabel et al., 1972);
topographic amplification: Eurocode 8.

Calculation of the Housner intensity.

Calculation of the elastic response spectra:
Boore & Atkinson (2008);
Eurocode 8;
spectra from a reference accelerogram;
adapted response spectra by I.C.M.S. 2008 method.

Seismic geotechnical effects:
pore water pressure increasing in both cohesive and granular soils;
seismic stability of infinite slope by Newmark method.

Building seismic hazard:
Fragility curves: Rota et al. (2008);
Fragility curves: Rossetto et al.(2003).

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