Resistance of Composite Column to Compression and Bending
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Design of the composite steel-concrete columns subjected to compression and bending, according to Eurocode
4, is shown in the paper. The effects of imperfections in the axial compression are taken into account
indirectly by using the relevant European buckling curves. When a composite column is subjected to
combined axial compression and bending, the analysis includes an increase in bending moment due to second
order effects. The verification of the column resistance to compression and bending is based on the use of
interaction curve. For the cross sections of fully encased columns with the I steel sections, very practical sets of
continuous interaction curves are given. The curves are constructed for different composite column dimensions,
steel sections and concrete classes.