Volume 3, Number 2 (6-2013)                   2013, 3(2): 245-257 | Back to browse issues page

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Shakeri K. OPTIMUM WEIGHTED MODE COMBINATION FOR NONLINEAR STATIC ANALYSIS OF STRUCTURES. International Journal of Optimization in Civil Engineering. 2013; 3 (2) :245-257
URL: http://ijoce.iust.ac.ir/article-1-130-en.html

Abstract:   (2906 Views)
In recent years some multi-mode pushover procedures taking into account higher mode effects, have been proposed. The responses of considered modes are combined by the quadratic combination rules, while using the elastic modal combination rules in the inelastic phases is not valid. Here, an optimum weighted mode combination method for nonlinear static analysis is presented. Genetic algorithm is used for optimization of the modal weight. The proposed procedure is applied for a sample building. The results show that the resulted response from the proposed method has minimal error in comparison with the response of the nonlinear time history analysis.
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Type of Study: Research | Subject: Optimal analysis
Received: 2013/03/28 | Accepted: 2013/04/27 | Published: 2013/04/27

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