Research Article
Multiobjective Design Optimization of Grillage Systems according to LRFD-AISC
Table 3
Values of measurement quantities obtained by “Eval. Number = 5,000” and “Pop. Size = 100” for design example 1.
| C. no. | IGD | HV | Spread | AbYSS | NSGAII | PESAII | SPEAII | AbYSS | NSGAII | PESAII | SPEAII | AbYSS | NSGAII | PESAII | SPEAII |
| | Means |
| 1 | 0.0452 | 0.0382 | 0.0278 | 0.0435 | 0.9280 | 0.9521 | 0.9352 | 0.9029 | 0.8147 | 0.9293 | 0.9049 | 0.9203 | 2 | 0.0304 | 0.0324 | 0.0309 | 0.0274 | 0.9356 | 0.9106 | 0.9467 | 0.9490 | 0.9058 | 0.9172 | 0.9289 | 0.8819 | 3 | 0.0246 | 0.0443 | 0.0393 | 0.0346 | 0.9863 | 0.9789 | 0.9849 | 0.9414 | 0.8067 | 0.8827 | 0.8683 | 0.8555 | 4 | 0.0261 | 0.0286 | 0.0247 | 0.0135 | 0.9117 | 0.9079 | 0.9540 | 0.9862 | 0.9157 | 0.9106 | 0.9133 | 0.8469 | 5 | 0.0247 | 0.0418 | 0.0336 | 0.0442 | 0.9684 | 0.9013 | 0.9577 | 0.9145 | 0.8491 | 0.9027 | 0.9037 | 0.8797 | 6 | 0.0430 | 0.0388 | 0.0439 | 0.0160 | 0.9652 | 0.9160 | 0.9203 | 0.9715 | 0.8235 | 0.9001 | 0.8909 | 0.8754 | 7 | 0.0250 | 0.0316 | 0.0356 | 0.0419 | 0.9408 | 0.9140 | 0.9574 | 0.9196 | 0.8909 | 0.9294 | 0.9047 | 0.9160 | 8 | 0.0423 | 0.0299 | 0.0402 | 0.0415 | 0.9724 | 0.9668 | 0.9738 | 0.9141 | 0.8407 | 0.9234 | 0.8865 | 0.9174 |
| | Standard deviations corresponding to best means and assessment of significance levels according to statistical tests |
| | 0.0011 | 0.0018 | 0.0045 | 0.0008 | 0.0024 | 0.0034 | 0.0048 | 0.0012 | 0.0028 | 0.0047 | 0.0084 | 0.0053 | | (+) | (+) | (+) |
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