Table 1.
Numbers, dimensions, and properties of materials of the columns.
| Number | D × t × L | L/D | D/t | Properties of Concrete | Properties of Steel Tubes | |||
|---|---|---|---|---|---|---|---|---|
| (mm3) | fck (MPa) | Ec (GPa) | Fy (MPa) | Es (GPa) | μs | |||
| N-T1-1 | 140 × 1.2 × 420 | 3.00 | 116.7 | 65.8 | 30.1 | 345.0 | 181.0 | 0.30 |
| R-T1-1 | 140 × 1.2 × 420 | 3.00 | 116.7 | 54.4 | 25.7 | 345.0 | 181.0 | 0.30 |
| R-T1-2 | 140 × 1.2 × 420 | 3.00 | 116.7 | 54.4 | 25.7 | 345.0 | 181.0 | 0.30 |
| N-T2-1 | 140 × 3.0 × 420 | 3.00 | 46.7 | 65.8 | 30.1 | 358.3 | 202.0 | 0.28 |
| R-T2-1 | 140 × 3.0 × 420 | 3.00 | 46.7 | 54.4 | 25.7 | 358.3 | 202.0 | 0.28 |
| R-T2-2 | 140 × 3.0 × 420 | 3.00 | 46.7 | 54.4 | 25.7 | 358.3 | 202.0 | 0.28 |