SeismoSpect – Signal Processing for Ground Motion Records

SeismoSpect allows users to open accelerograms from text files in different formats, to create their own library of ground motion records and save them all in a single file making it easy to handle and share large numbers of records. It features a user-friendly visual interface and is capable of deriving a number of strong-motion parameters often required by engineer seismologists and earthquake engineers.

The structure of the program follows a very straightforward methodology with a series of input modules (tabs) from the input definition to the results to be extracted. This rational and intuitive approach makes it extremely easy to learn and use; neither manuals, nor tutorial examples or videos are required.

SeismoSpect Features

  • Units for both the metric and the imperial system are supported
  • Baseline Correction and Filtering
  • Velocity & Displacement time-histories
  • Elastic and inelastic acceleration, velocity and displacement response spectra
  • Overdamped elastic spectra
  • Constant-ductility inelastic spectra and simplified inelastic spectra
  • Calculation of mean response spectra
  • Spectra comparison to reference spectrum
  • Calculation of several ground motions parameters:
  • Peak ground values of acceleration (PGA), velocity (PGV) and displacement (PGD
  • Root-mean-square (RMS) of acceleration, velocity and displacement
  • Arias Intensity (Ia)
  • Characteristic Intensity (Ic)
  • Specific Energy Density (SED)
  • Cumulative Absolute Velocity (CAV)
  • Acceleration (ASI) and Velocity (VSI) Spectrum Intensity
  • Housner Intensity (HI)
  • Sustained maximum acceleration (SMA) and velocity (SMV)
  • Effective Design Acceleration (EDA)
  • Predominant Period
  • Data and results presented in tables or charts and easily exported to other Windows application (e.g. MS Word and MS Excel).
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