Axial Hysteretic Behavior of Steel Members

by Addison B. Higginbotham, (A.M.ASCE), Lead Engr.; NUTECH, Inc., San Jose, Calif.,
Robert D. Hanson, (M.ASCE), Prof. of Civ. Engrg.; Univ. of Michigan, Ann Arbor, Mich.,

Serial Information: Journal of the Structural Division, 1976, Vol. 102, Issue 7, Pg. 1365-1381

Document Type: Journal Paper


A procedure for predicting the force-deformation behavior of axially-loaded members with intermediate slenderness ratios is developed for use in computer-aided inelastic dynamic analyses of frame structures. While the analytical solutions predict the general cyclic force-deformation behavior of axially-loaded members, the quantitative behavior of actual members may not be predicted with a high level of accuracy. A rigorous formulation that permits zones of plastic behavior, or experimental results, could be used to develop empirical results. The elastic bending of a member exerts an appreciable influence on its post-buckling force-deformation behavior and increases in importance as the slenderness ratio increases. Complete second-degree equations afford an excellent representation of the cyclic force-deformation behavior emanating from the analytical solutions. With second-degree equations and computer analysis, computational time may become excessive.

Subject Headings: Deformation (mechanics) | Computer analysis | Structural behavior | Material properties | Steel | Dynamic structural analysis | Axial loads | Cross sections

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