Deflection Analysis for Shakedown

by Dale G. Eyre, (A.M.ASCE), Asst. Prof. of Civ. Engrg.; Univ. of New Brunswick, Fredericton, N.B., Canada,
Theodore V. Galambos, (M.ASCE), Prof. of Civ. Engrg.; Washington Univ., St. Louis, MO,

Serial Information: Journal of the Structural Division, 1970, Vol. 96, Issue 7, Pg. 1359-1376

Document Type: Journal Paper


A theoretical means of computing the deflections of beams subjected to variable repeated loading is discussed. The method of analysis includes strain hardening, changes in the virgin moment-curvature curve due to the cyclic nature of the load, and allows yielding to occur over a finite region of the beam. The results of the analysis are compared to test results. The method predicts shakedown loads beyond the simple plastic load and accurately predicts deflection response.

Subject Headings: Displacement (mechanics) | Load factors | Repeated loads | Strain | Curvature | Cyclic loads | Curved beams

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