Research Article
Optimum Design of Fully Composite, Unstiffened, Built-Up, Hybrid Steel Girder Using GRG, NLR, and ANN Techniques
Table 3
Pearson correlation matrix.
| | η | α | Fcu | Ftf | Ftw | M | Hs | Asc | Asw | Ast | ts |
| η | 1.00 | | | | | | | | | | | α | 0.00 | 1.00 | | | | | | | | | | Fcu | −0.10 | −0.79 | 1.00 | | | | | | | | | Ftf | 0.00 | 0.00 | 0.09 | 1.00 | | | | | | | | Ftw | 0.00 | 0.00 | 0.13 | 0.85 | 1.00 | | | | | | | M | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 1.00 | | | | | | Hs | 0.11 | 0.08 | 0.13 | −0.37 | −0.34 | 0.84 | 1.00 | | | | | Asc | −0.06 | 0.54 | −0.32 | −0.22 | −0.18 | 0.64 | 0.73 | 1.00 | | | | Asw | 0.12 | 0.06 | 0.15 | −0.24 | −0.19 | 0.89 | 0.97 | 0.73 | 1.00 | | | Ast | −0.07 | 0.11 | 0.09 | −0.24 | −0.21 | 0.91 | 0.90 | 0.77 | 0.89 | 1.00 | | Ts | 0.00 | −0.43 | 0.52 | 0.46 | 0.39 | 0.54 | 0.23 | −0.12 | 0.29 | 0.25 | 1.00 |
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