oa Civil Engineer in South Africa - Symmetrical and antisymmetrical buckling of unbraced frames

Volume 21, Issue 1
  • ISSN : 0009-7845



The results are reported of a second-order, elastic buckling investigation of single-bay unbraced frames, failing in the plane of bending. In the analysis the differential equations for the were used taking into account the finite displacements induced by the loads before buckling occurs. The ensuing frame buckling functions were solved for numerical cases by means of a computer program developed by the author for this purpose. The resulting have been incorporated in a non-dimensional failure load graph covering the full elastic and inelastic failure range for frames of the nature investigated.

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