Inelastic Strength of Cold-Formed Steel Beams

by H. Peter Reck, Formerly, Research Asst., Dept. of Struct. Engrg. Cornell Univ., Ithaca, N.Y.,
George Winter, (Hon.M.ASCE), Class of 1912 Prof.; Dept. of Struct. Engrg., Cornell Univ., Ithaca, N. Y.,
Teoman Pekoz, (A.M.ASCE), Asst. Prof. and Mgr. of Struct. Research; Dept. of Struct. Engrg., Cornell Univ., Ithaca, N. Y.,

Serial Information: Journal of the Structural Division, 1975, Vol. 101, Issue 11, Pg. 2193-2203

Document Type: Journal Paper

Discussion: Srinivasan C. N. (See full record)
Discussion: Allen David (See full record)

Abstract: On the basis of an experimental and analytical study, it has been shown that the inelastic reserve strength of cold-formed steel beams due to partial plastification of the cross section can be significant for many practical shapes. With proper care this reserve strength can be utilized to achieve more economical design of such members. Beams whose compression flanges are stiffened along both longitudinal edges by webs is the subject of this paper. Current work at Cornell University includes the extension of this study to beams with compression flanges, with unstiffened outer edges as well as the utilization of reserve strength due to inelastic moment redistribution.

Subject Headings: Steel beams | Structural strength | Cold-formed steel | Inelasticity | Strength of materials | Compression | Flanges | Economic factors |

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