Research Article
Optimising the Selection of Input Variables to Increase the Predicting Accuracy of Shear Strength for Deep Beams
Table 2
The statistical description of the input parameters used in this study.
| | Category | Variable | Unit | Max. | Mean | Min. | STD | IQR |
| | Geometrical parameters | b | mm | 305.000 | 122.810 | 76.000 | 44.244 | 30.000 | | h | mm | 915.000 | 523.476 | 254.000 | 147.671 | 160.000 | | a | mm | 1290.000 | 467.734 | 125.000 | 238.306 | 356.000 | | mm | 844.000 | 469.014 | 216.000 | 145.175 | 140.000 | | mm | 4065.000 | 1484.450 | 500.000 | 642.367 | 1100.000 | | a/ | Non | 2.700 | 1.063 | 0.220 | 0.518 | 0.960 | | Non | 5.000 | 2.925 | 0.910 | 1.064 | 1.570 |
| | Vertical web reinforcement | | mm | 457.500 | 154.679 | 0.000 | 122.820 | 165.100 | | MPa | 586.000 | 292.920 | 0.000 | 175.846 | 227.400 | | % | 2.450 | 0.351 | 0.000 | 0.407 | 0.360 |
| | Horizontal web reinforcement | | mm | 801.000 | 67.816 | 0.000 | 96.034 | 101.250 | | MPa | 586.000 | 213.697 | 0.000 | 207.344 | 437.400 | | % | 2.450 | 0.299 | 0.000 | 0.419 | 0.450 |
| | Longitudinal reinforcement | | MPa | 504.800 | 361.755 | 210.000 | 86.698 | 131.000 | | % | 4.080 | 1.620 | 0.120 | 0.713 | 0.700 |
| | Concrete property | | MPa | 73.600 | 30.891 | 12.260 | 14.830 | 23.350 |
| | Shear strength capacity | | kN | 1357.000 | 287.197 | 67.620 | 180.332 | 182.590 |
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