Research Article
On Factors behind the Reasonable Failure Mode of Concrete-Filled Circular Steel Tubular Composite Frame
Table 1
Mechanical properties of steel materials.
| Type | Thickness (mm) | fy (MPa) | fu (MPa) | Es (N/mm2) | Poisson’s ratio μs |
| Circular steel tube | 2.0 | 327.7 | 397.9 | 2.063 × 105 | 0.266 | Steel beam | 3.44 | 303 | 440.9 | 2.061 × 105 | 0.262 |
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