Research Article
Experimental Study on Ultrahigh Strength Concrete Filled Steel Tube Short Columns under Axial Load
Table 3
Mechanical properties of the steel tubes.
| Dimensions /mm | Types | Yield strength/MPa | Tensile strength/MPa | Elasticity modulus (×105)/MPa |
| | Q235 | 349 | 487 | 2.01 | | Q345 | 427 | 573 | 2.11 | | Q235 | 352 | 516 | 2.09 |
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