Shakedown Tests on Steel Bars and Beams

by Dale G. Eyre, (A.M.ASCE), Asst. Prof. of Civ. Engrg.; Univ. of New Brunswick, Fredericton, N.B., Canada,
T. 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. 1287-1304

Document Type: Journal Paper


The results of experiments on two-span continuous beams subjected to various programs of variable repeated loading are reported and analyzed. The loading program was designed to simulate the effects of a one- and two-point heavy load moving slowly across the beam. The experiments were performed on 1.5 in. by 0.75 in. rectangular, heat-treated, steel bars and on as-rolled, wide-flange, two-span steel beams. The test results are examined in accordance with a shakedown analysis based on the simple plastic theory. Design implications with special reference to bridges are also considered.

Subject Headings: Bars (structure) | Steel beams | Continuous beams | Repeated loads | Material tests | Bridge design | Moving loads | Load and resistance factor design

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