Research Article

Study on Mechanical Behavior of Fully Encased Composite Slender Columns with High-Strength Concrete Using FEM Simulation

Table 12

Effect of structural steel shape on the axial load capacity of FEC column with s = 100 mm.

GroupColumn IDStructural steelConcrete fck, (MPa)S (mm)Peak axial load (P)Percent difference (%)

Group 1Control RHC1901007442.67
HC1CSCircular908320.5211.79
HC1ISI-shaped9088074.958.50
HC1RSRectangular907649.102.77

Group 2Control RHC21001007996.18
HC2CSCircular1008799.5211.44
HC2ISI-shaped1008745.2510.75
HC2RSRectangular1008165.453.41

Group 3Control RHC31201008896.69
HC3CSCircular1209898.0510.12
HC3ISI-shaped1209800.419.22
HC3RSRectangular1209108.082.32