Research Article

Bearing Capacities of Different-Diameter Concrete-Filled Steel Tubes under Axial Compression

Table 2

Mechanical properties of steel tube.

Specimen numberYield strength [MPa]Ultimate strength [MPa]Break elongation A [%]

CD2590.4619.53.7
CD4259.8418.424.4
CD6276.0437.929.1
CD8278.8416.230.9