Open AccessRefined harmony search for optimal scaling and selection of accelerograms
Author(s) -
Mohsen Shahrouzi,
Mohammad Sazjini
Publication year - 2012
Publication title -
scientia iranica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.299
H-Index - 51
eISSN - 2345-3605
pISSN - 1026-3098
DOI - 10.1016/j.scient.2012.02.002
Subject(s) - harmony search , scaling , ground motion , algorithm , computer science , mathematical optimization , set (abstract data type) , heuristic , selection (genetic algorithm) , range (aeronautics) , mathematics , artificial intelligence , structural engineering , engineering , geometry , programming language , aerospace engineering
AbstractTime history analyses of structures typically require some accelerograms of strong ground motion expected at the site. They should be scaled, avoiding the average response spectrum, to fall below the target design spectrum given by the employed seismic-code procedure within a given period range. In this paper, a harmony search, as a recently developed meta-heuristic, is utilized and adapted to solve the problem of the optimal selection and scaling of such recorded accelerograms. Treating a number of ground motion records, close agreement between the scaled-average spectra and the design target were achieved, identifying the proposed algorithm as an acceptable and efficient technique to generate a spectrum compatible set of records for further dynamic structural analyses