The Bending Resistance of Steel Beams

by Joseph A. Yura, (M.ASCE), Prof. of Civ. Engrg.; The University of Texas at Austin, Austin, Tex.,
Mayasandra K. Ravindra, (M.ASCE), Sr. Engrg. Analyst; Sargent and Lundy, Chicago, Ill.,
Theodore V. Galambos, (F.ASCE), Prof. and Chmn.; Civ. Engrg. Dept., Washington Univ., St. Louis, Mo.,

Serial Information: Journal of the Structural Division, 1978, Vol. 104, Issue 9, Pg. 1355-1370

Document Type: Journal Paper


The bending strength of rolled steel beams, as it is affected by flexural-torsional buckling and local plate buckling, is examined using probabilistic concepts. Design equations are recommended φ factors developed. The results indicate that the design recommendations in all ranges of behavior have reasonably similar reliabilities, so that a single φ factor can be used.

Subject Headings: Steel beams | Bending (structural) | Load and resistance factor design | Flexural strength | Buckling | Structural strength | Steel plates | Probability

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