Research Article

Compression Performance and Calculation Method of Thin-Walled Prefabricated Steel Tube Lightweight Concrete Columns

Table 5

Ductility factor with various percentages of steel content of specimens.

Concrete strengthSteel content
8.5%11.6%15.5%19%

LC201.441.541.011.12
LC251.461.581.141.14
LC301.551.601.211.15