Research Article
Numerical Investigation of Bundled RC Column under Impact Load
Table 1
Material properties for concrete and steel reinforcement.
| Concrete | | Density (kg/m3) | Elastic modulus (GPa) | Poisson’s ratio (ν) | Compressive strength, fc (MPa) | Tensile strength, fctm (MPa) | Ultimate strain (%) |
| | 2400 | 32.84 | 0.2 | 38 | 2.89 | 0.35 |
| Steel reinforcement bars | | Density, ρ (kg/m3) | Poisson ratio, ν | Elastic modulus, Es (GPa) | Yield stress, fy (MPa) | Yield strain, εy | Ultimate stress, fu (MPa) |
| Main bar | 7850 | 0.3 | 200 | 500 | 0.0025 | 695 | Stirrup | 7850 | 0.3 | 200 | 460 | 0.0023 | 655 |
|
|