Volume 1, Issue 2 (6-2011)
2011, 1(2): 211-232 |
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Mashayekhi M, Fadaee M, Salajegheh J, Salajegheh E. TOPOLOGY OPTIMIZATION OF DOUBLE LAYER GRIDS FOR EARTHQUAKE LOADS USING A TWO-STAGE ESO-ACO METHOD. International Journal of Optimization in Civil Engineering 2011; 1 (2) :211-232
URL: http://ijoce.iust.ac.ir/article-1-16-en.html
URL: http://ijoce.iust.ac.ir/article-1-16-en.html
Abstract: (26687 Views)
A two-stage optimization method is presented by employing the evolutionary structural optimization (ESO) and ant colony optimization (ACO), which is called ESO-ACO method. To implement ESO-ACO, size optimization is performed using ESO, first. Then, the outcomes of ESO are employed to enhance ACO. In optimization process, the weight of double layer grid is minimized under various constraints which artificial ground motion is used to calculate the structural responses. The presence or absence of elements in bottom and web grids and also cross-sectional areas are selected as design variables. The numerical results reveal the computational advantages and effectiveness of the proposed method.
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