Techno Press

Earthquakes and Structures   Volume 10, Number 3, March 2016, pages 563-588
Scaled and unscaled ground motion sets for uni-directional and bi-directional dynamic analysis
Ali Haydar Kayhan

Abstract     [Full Text]
    In this study, solution models are proposed to obtain code-compatible ground motion record sets which can be used for both uni-directional and bi-directional dynamic analyses. Besides scaled, unscaled ground motion record sets are obtained to show the utility and efficiency of the solution models. For scaled ground motion sets the proposed model is based on hybrid HS-Solver which integrates heuristic harmony search (HS) algorithm with the spreadsheet Solver add-in. For unscaled ground motion sets HS based solution model is proposed. Design spectra defined in Eurocode-8 for different soil types are selected as target spectra. The European Strong Motion Database is used to get ground motion record sets. Also, a sensitivity analysis is conducted to evaluate the effect of different HS solution parameters on the solution accuracy. Results show that the proposed solution models can be regarded as efficient ways to develop scaled and unscaled ground motion sets compatible with code-based design spectra.
Key Words
    ground motion selection; harmony search algorithm; response history analysis
Department of Civil Engineering, University of Pamukkale, Denizli, Turkey

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