File Size: 8.91 MB
SeismoSignal constitutes a simple, yet efficient, package for the processing of strong-motion data. Amongst other things, it allows for the derivation of elastic and constant ductility inelastic response spectra, computation of Fourier amplitude spectra, filtering of high and low frequency record content and estimation of other important seismological parameters, such as the Arias Intensity and the significant and effective durations.
SeismoSignal calculates:
Elastic and constant-ductility inelastic response spectra
Fourier and Power spectra
Arias (Ia) and characteristic (Ic) intensities
Cumulative Absolute Velocity (CAV) and Specific Energy Density (SED)
Root-mean-square (RMS) of acceleration, velocity and displacement
Sustained maximum acceleration (SMA) and velocity (SMV)
Effective design acceleration (EDA) Acceleration (ASI) and velocity (VSI) spectrum intensity
Predominant (Tp) and mean (Tm) periods
Husid and energy flux Descriptions
Bracketed, uniform, significant and effective durations
SeismoSignal also enables the filtering of unwanted frequency content of the given signal. Three different digital filter types are available, all of which capable of carrying out highpass, lowpass, bandpass and bandstop filtering.
The program is able to read accelerograms defined in both single- and multiple-values per line formats (the two most popular formats used by strong-motion databases), and can apply baseline correction and filtering prior to time-integration of the signal (to obtain velocity and displacement time-histories).
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