Inelastic analysis of reinforced concrete columns

A computer software was developed for inelastic analysis of reinforced conc rete columns under combined axial compression and monotonically increasing lateral loads. The software incorporates effects of concrete confinement, s teel strain hardening, reinforcement buckling and secondary deformations du e to P-Delta effect. Hinging of column critical region and progression of h inging along column height are considered. Inelastic deformation components due to flexure and anchorage slip are included. The input consists of colu mn geometry, material properties, and loading. The results are presented in a graphical form in terms of moment-curvature, force-displacement, and mom ent-anchorage slip relationships. Axial force-moment interaction diagram is also plotted as part of the output. The program was verified extensively a gainst available experimental data. (C) 2000 Elsevier Science Ltd. All righ ts reserved.