REXELite, online record selection for the ITalian ACcelerometric Archive

REXELite is an internet version, operating on the ITalian ACcelerometric Archive (ITACA, http://itaca.mi.ingv.it/), of REXEL, a software developed for automatic selection of ground motion suites for code-based structural analysis, and freely available at the website of Rete dei Laboratori Universitari di Ingegneria Sismica (ReLUIS, http://www.reluis.it/) project. REXELite allows to search for combinations of seven 1- or 2-components strong motion records, compatible on average with a specified target spectrum. More specifically, REXELite: (1) automatically builds code spectra for any limit state according to Eurocode 8 and the new Italian building code spectra; (2) finds the set of seven ITACA records having the most similar spectral shape with respect to that of the code, and whose average also matches the target spectrum in a user-specified period range and with the desired tolerance. The records are selected according to specific features, in terms of magnitude, distance and soil conditions, selected by the user. The set of accelerograms of the combination may include unscaled (original) or amplitude-scaled records and may be used for code-compliant non-linear time history analyses of structures. REXELite was developed, in cooperation with ReLUIS, within the INGV-DPC S4 project (http://esse4.mi.ingv.it) funded by the National Department of Civil Protection.