Comparison of optimization methods for retrofit placement in a non-code conforming reinforce-concrete structure
نویسندگان
چکیده
This paper discusses the suitability of two optimization methods for use in seismic retrofit location selection. The structure for analysis is modelled after a seven story RC structure in California, USA, built according to 1964 Los Angeles City Building Code. The OpenSees parallel computing software package is used to model the dynamic behaviour of a test structure. Past earthquake records are scaled to a seismic hazard level appropriate for the site. MATLAB is used to interface the optimization methods with the model. The optimization methods applied and compared are genetic algorithm and sequential search method. The objective function used accounts for performance-based principles, measured with inter-story drift, and cost, measured by the number of retrofits applied. Results of the optimization methods are compared and discussed with regard to the quality of the solution and the number of simulations required.
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