Research Article
Performance Evaluation of Q690 High-Strength Concrete-Filled Thin-Walled Steel Tubular Columns under Compression-Bending Coupling
Table 1
Summary of test specimens.
| Number | Specimen | D (mm) | t (mm) | (MPa) | D/t ratio | (MPa) | n | Axial load P (kN) |
| 1 | HCFTST-1-1-1 | 140 | 2 | 722.64 | 70 | 43.5 | 0.1 | 104.68 | 2 | HCFTST-1-2-2 | 140 | 2 | 722.64 | 70 | 49.1 | 0.2 | 221.80 | 3 | HCFTST-1-3-3 | 140 | 2 | 722.64 | 70 | 78.6 | 0.3 | 431.00 | 4 | HCFTST-1-4-4 | 140 | 2 | 722.64 | 70 | 97.6 | 0.4 | 659.09 | 5 | HCFTST-2-1-2 | 180 | 2 | 722.64 | 90 | 43.5 | 0.2 | 307.24 | 6 | HCFTST-2-2-1 | 180 | 2 | 722.64 | 90 | 49.1 | 0.1 | 164.04 | 7 | HCFTST-2-3-4 | 180 | 2 | 722.64 | 90 | 78.6 | 0.4 | 875.65 | 8 | HCFTST-2-4-3 | 180 | 2 | 722.64 | 90 | 97.6 | 0.3 | 762.77 | 9 | HCFTST-3-1-3 | 220 | 2 | 722.64 | 110 | 43.5 | 0.3 | 632.75 | 10 | HCFTST-3-2-4 | 220 | 2 | 722.64 | 110 | 49.1 | 0.4 | 906.43 | 11 | HCFTST-3-3-1 | 220 | 2 | 722.64 | 110 | 78.6 | 0.1 | 309.26 | 12 | HCFTST-3-4-2 | 220 | 2 | 722.64 | 110 | 97.6 | 0.2 | 725.00 | 13 | HCFTST-4-1-4 | 260 | 2 | 722.64 | 130 | 43.5 | 0.4 | 1106.30 | 14 | HCFTST-4-2-3 | 260 | 2 | 722.64 | 130 | 49.1 | 0.3 | 895.84 | 15 | HCFTST-4-3-2 | 260 | 2 | 722.64 | 130 | 78.6 | 0.2 | 829.43 | 16 | HCFTST-4-4-1 | 260 | 2 | 722.64 | 130 | 97.6 | 0.1 | 489.49 |
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Note. The notation is , where indicates D/ t ratio number, represents concrete strength ( ) number, and stands for axial compression ratio ( n) number. |