Table 1 Measured mechanical properties of the steel tubes.

From: Repeated axial compressive performance of GCFST columns: Test investigation and numerical analysis

Nominal thickness/mm

Measured thickness/mm

Yield strength/MPa

Ultimate strength/MPa

Elongation/%

Elasticity modulus/MPa

2.75

2.70

294.51

354.51

18.67

2.11 × 105

4.00

3.97

300.31

364.67

26.13

2.12 × 105