Research Article
Optimum Design of Fully Composite, Unstiffened, Built-Up, Hybrid Steel Girder Using GRG, NLR, and ANN Techniques
Table 2
Statistical analysis of collected database.
| | η | α | Fcu | Ftf | Ftw | M | Hs | Asc | Asw | Ast | ts | (t/cm2) | (t/cm2) | (t/cm2) | (cm.t) | (cm) | (cm2) | (cm2) | (cm2) | (cm) |
| Training set | Max | 1.50 | 1.00 | 0.45 | 6.90 | 6.90 | 50000 | 175.3 | 152.4 | 250.4 | 152.7 | 42.0 | Min | 1.00 | 0.00 | 0.25 | 2.40 | 2.40 | 1500 | 20.7 | 0.7 | 5.9 | 3.3 | 10.0 | Avg | 1.14 | 0.43 | 0.33 | 4.54 | 3.93 | 16333 | 64.0 | 23.3 | 48.4 | 43.6 | 13.8 | SD | 0.15 | 0.37 | 0.09 | 1.61 | 1.45 | 16970 | 30.87 | 27.43 | 43.16 | 34.54 | 6.19 | Var | 0.13 | 0.85 | 0.26 | 0.36 | 0.37 | 1.04 | 0.48 | 1.18 | 0.89 | 0.79 | 0.45 |
| Validation set | Max | 1.50 | 1.00 | 0.45 | 6.90 | 6.90 | 50000 | 156.5 | 133.1 | 199.7 | 133.1 | 42.0 | Min | 1.50 | 0.00 | 0.25 | 2.40 | 2.40 | 1500 | 24.1 | 0.4 | 8.0 | 1.9 | 10.0 | Avg | 1.15 | 0.44 | 0.33 | 4.54 | 3.93 | 16333 | 64.1 | 23.8 | 48.6 | 43.8 | 13.8 | SD | 0.15 | 0.37 | 0.09 | 1.61 | 1.45 | 16970 | 30.83 | 28.13 | 43.12 | 34.79 | 6.20 | Var | 0.13 | 0.83 | 0.26 | 0.36 | 0.37 | 1.04 | 0.48 | 1.18 | 0.89 | 0.79 | 0.45 |
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