Study on the Optimal Placement of Viscoelastic Dampers for Passive Response Control by Genetic Algorithms

Abstract eng:
A new mathematical model for location optimization of viscoelastic dampers is established in this paper. Three response control indices about the storey-drift angle, storey-displacement and acceleration are considered in this model. Firstly, five combination modes of these indices are presented. On the premise that the number of dampers is fixed, this paper deals with the optimal placement of viscoelastic dampers for several building models with different number of stores and seismic ground motions at four types of sites using genetic algorithm. Secondly, two estimating indices are presented to assess the response to the optimal location under the condition of five combination modes, which can generally express the best response control and the propositional combination of the coefficients is available under different conditions. Some numerical examples are illustrated to verify the effectiveness and feasibility of the new mathematical model. At last, several significant conclusions are drawn based on numerical results.

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