Plastic Behavior of Tubular Beams Columns

by Timothy J. Dwyer,
Theodore V. Galambos,

Serial Information: Journal of the Structural Division, 1965, Vol. 91, Issue 4, Pg. 153-168

Document Type: Journal Paper

Abstract: The elastic and plastic behavior of ASTM A-36 tubular beam columns is studied. Experimental results for three tests of tubular beam columns are presented. These tests show that the tubular section is appreciably stronger than a similar wide flange section. This is especially apparent when the beam column is subjected to a relatively large axial load. A theoretical investigation of the tubular shape of a beam column is also conducted. Theoretical moment-axial load-curvature ratio curves are derived for the tubular section with no residual stresses. Values of curvature are numerically integrated to obtain the theoretical beam column buckling load. These data are compared to current analysis equations for beam columns.

Subject Headings: Beam columns | Axial loads | Elastoplasticity | Structural behavior | Curvature | Elastic analysis | Flanges | Moment (mechanics)

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