A new earthquake record processing and selection software: OPENSIGNAL

A computer‐based platform based on signal processing has been developed using a modular programming approach, to enable the selection and the processing of earthquake ground motion records. Structural engineers during the design phase use different specific applications to perform simple tasks such as correcting, filtering, displaying and comparing ground motion records, searching for seismic records that satisfy certain criteria such as spectral matching. The proposed computer‐based platform combines in unified environment different features such as: (i) selection of ground motion records using both spectral and waveform matching, (ii) signal processing, (iii) response spectra analysis, (iv) soil response analysis etc. The novelty of the platform is the implementation of a procedure that allows the selection of earthquake records based on spectral matching criteria using different target spectra such as the Conditional Mean Spectra which has been build for the first time on the Italian national territory. Using the proposed platform a set of ground motion from three different databases has been selected and processed. The results show the advantage of processing multiple records simultaneously and of guiding the user toward the complete definition of the seismic input that will be used in structural analyses.