Table 2.
Initial statistical analysis of the database.
| Parameter | Height of Steel Tube (H) | Width of Steel Tube (W) | Thickness of Steel Tube (t) | Length of Column (L) | Yield Stress of Steel (fy) | Compressive Strength of Concrete (f’c) | Load-Bearing Capacity (Nu) |
|---|---|---|---|---|---|---|---|
| Unit | mm | mm | mm | mm | MPa | MPa | kN |
| Minimum | 60.00 | 60.00 | 0.70 | 60.00 | 194.00 | 7.90 | 105.40 |
| Q25 | 101.60 | 100.00 | 3.00 | 450.00 | 320.00 | 26.39 | 808.08 |
| Median | 149.35 | 120.00 | 4.80 | 634.00 | 384.65 | 40.91 | 1537.00 |
| Q75 | 195.00 | 160.00 | 5.48 | 1514.00 | 618.00 | 80.00 | 3183.00 |
| Maximum | 500.00 | 500.00 | 16.00 | 4500.00 | 835.00 | 164.10 | 17,900.00 |
| Mean | 154.02 | 141.72 | 4.80 | 1115.58 | 459.11 | 54.36 | 2500.92 |
| StD | 66.08 | 65.36 | 2.34 | 957.49 | 195.18 | 37.00 | 2602.94 |
| CV (%) | 42.90 | 46.12 | 48.87 | 85.83 | 42.51 | 68.06 | 104.08 |