Refined harmony search for optimal scaling and selection of accelerograms

Time history analyses of structures typically require some accelerograms of strong groundmotion expected at the site. they should be scaled, avoiding the average response spectrum, to fall belowthe target design spectrum given by the employed seismic-code procedure within a given period range. inthis paper, a harmony search, as a recently developed meta-heuristic, is utilized and adapted to solvethe problem of the optimal selection and scaling of such recorded accelerograms. treating a numberof ground motion records, close agreement between the scaled-average spectra and the design targetwere achieved, identifying the proposed algorithm as an acceptable and efficient technique to generate aspectrum compatible set of records for further dynamic structural analyses