Post-elastic force-displacement dependence of bent and compressed column

Abstract

Dependences of a column rotation and axial strain on axial force and bending moment are deduced when plastic strain are in some cross-sections. When post-elastic deformation are in the column the axial displacements de-pend not only on the axial force but also on the bending moment. Dependences of axial deformation on axial force and transverse deformation on bending force are dominant in the elasto-plastic region, but the complementary de-pendence of the axial deformation on the bending force and the dependence of the transverse deformations on the axial make themselves evident and are investigated in this paper also. These lines of dependences vary with the cross-section shape factor.