INTERACTIVE BUCKLING OF THIN-WALLED OPEN ELASTIC BEAM-COLUMNS WITH INTERMEDIATE STIFFENERS

Influence of the interactive buckling on the post-buckling behaviour o f thin-walled columns with imperfections is studied. This investigatio n is concerned with open elastic beam-columns with intermediate and ed ge stiffeners under axial compression and constant bending moment. The columns are assumed to be simply supported at the ends. The paper's a im is to contribute to the study of the equilibrium path in the post-b uckling behaviour of imperfect structures using the first-order approx imation. The present paper is the continuation of a paper by Kolakowsk i and Teter (1995, Int. J. Solids Structures 32, 1501-1516) where the interactive buckling of thin-walled dosed beam-columns with central in termediate stiffeners was considered.