Behavior of Plates Under Partial Edge Loading

by Maurice L. Sharp, Alcoa Lab, United States,

Document Type: Proceeding Paper

Part of: Steel Structures

Abstract: This paper addresses one of the common problems in designing thin-walled members, the ability of the shape to accommodate in-plane concentrated loads. Specific areas in which the problem arises include (1) intermediate reactions of building sheeting products bearing on purlins, (2) bearing of bridge deck longitudinals on intermediate girders, (3) automotive bumpers under localized impact forces, (4) automotive elements under jacking loads, etc. Specifications for aluminum structures and for light gage steel structures contain empirically derived provisions for design. This progress report covers the work underway to understand the behavior of thin sections under concentrated loads through the use of nonlinear finite element calculations. Results are presented for several rectangular plate cases and a thin box section, all subjected to partial edge loadings. Postbuckling behavior is emphasized.

Subject Headings: Steel structures | Concentrated loads | Bridge design | Bridge decks | Girder bridges | Nonlinear finite element analysis | Plates

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