Capacity of Composite Steel-concrete Columns

This paper studies the resistance of composite steel-concrete cross-section of columns at the ultimate limit state. The recommended design procedure is focused on solving the problem with the aid of the normal force vs. bending moment diagram, whose construction is time-consuming. This makes economical design difficult. Therefore a user-friendly application (a simple program on VBA platform) was developed for everyday use. The practical solution and some derivations are explained in this paper.