SeismoApps

SeismoSignal, SeismoSpect, SeismoMatch amd SeismoArtif 
constitute a suite of programs that are used to carry out basic earthquake records, such as the processing of strong-motion data, the derivation of elastic & inelastic response spectra and Power & Fourier spectra, the calculation of a number of commonly used ground
motion parameters, the adjustment of earthquake records to match a specific target response spectrum, or the generation of artificial earthquake accelerograms.

SeismoSignal

to process strong-motion data, featuring a user-friendly visual interface and being capable of deriving a number of strong-motion parameters often required by engineer seismologists and earthquake engineers.

SeismoSignal opens an accelerogram from text files in different formats.

SeismoSpect

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.

 SeismoMatch

adjusting earthquake records, through wavelet addition, to match a specific target response spectrum. Users have the opportunity to simultaneously match a number of accelerograms, and then obtain a mean matched spectrum whose maximum misfit respects a pre-defined tolerance.
This software can thus be used in combination with records selection tools and records appropriateness verification algorithms to define adequate suites of records for nonlinear dynamic analysis of new or existing structures.

SeismoArtif

generating artificial earthquake accelerograms matched to a specific target response spectrum using different calculation methods and varied assumptions. It is noted that the use of real accelerograms and spectrum matching techniques (i.e. SeismoMatch), together with records selection tools, tends to be recommended for the derivation of suites of records for use in nonlinear dynamic analysis of structures. However, in those cases where access to real accelerograms is, for whatever reason, challenging or inappropriate, then a tool such as SeismoArtif will be of pertinence and usefulness.

SeismoSignal

• Units for both the metric and the imperial system are supported
• Baseline Correction and Filtering
• Velocity & Displacement time-histories
• Fourier and Power spectra
• Elastic and inelastic acceleration, velocity and displacement response spectra
• Overdamped elastic spectra
• Constant-ductility inelastic spectra
• Calculation of several ground motions parameters:

• Four different types of record durations are computed: (i) the Bracketed duration, (ii) the Uniform duration, (iii) the Significant duration and (iv) the Effective duration
• Data and results presented in tables or charts and easily exported to other Windows application (e.g. MS Word and MS Excel)

SeismoSpect

• 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 motion parameters:

• Data and results presented in tables or charts and easily exported to other Windows application (e.g. MS Word and MS Excel).

SeismoMatch

• Units for both the metric and the imperial system are supported
• For the spectral matching operations, the wavelets algorithms proposed by Abrahamson [1992] and Hancock et al. [2006] and by Al Atik and Abrahamson [2010] are employed
• Baseline Correction and Filtering supported
• Velocity & Displacement time-histories for both original and matched records
• Elastic and inelastic acceleration, velocity and displacement response spectra
• Calculation of mean response spectra
• Spectra comparison to target spectrum
• Calculation of target spectra following the rules from a selection of more than 25 National Building Codes inlcuding Eurcode 8, ASCE 41-13 and various Regulations worldwide
• Calculation of several ground motions parameters

• Data and results presented in tables or charts and easily exported to other Windows application (e.g. MS Word and MS Excel)

• Units for both the metric and the imperial system are supported
• Four calculation methods employed for the generation of accelerograms:
    - Synthetic Accelerogram Generation & Adjustment:
  Synthetic accelerogram generation [Hallodorson & Papageorgiou, 2005] and correction in frequency domain
    - Artificial Accelerogram Generation:
  Random set of phase angles with amplitudes calculated by power density function [Gasparini & Vanmarcke,1976]
    - Artificial Accelerogram Generation & Adjustment:
  Random process adjustment by correction in frequency domain
    - Real Accelerogram Adjustment:
  Real accelerogram adjustment by correction in frequency domain
• Large range of envelope shapes available
• Up to eight records generated from one spectrum
• Velocity & Displacement time-histories
• Elastic acceleration, velocity and displacement response spectra
•  Calculation of target spectra following the rules from a selection of more than 25 National Building Codes inlcuding Eurcode 8, ASCE 41-13 and various Regulations worldwide
• Data and results presented in tables or charts and easily exported to other Windows application (e.g. MS Word and MS Excel).