Bending Strength of Thin Cold-Formed Steel Straight Panels

by Asadul H. Chowdhury, North Dakota State Univ, Fargo, ND, USA,
James L. Jorgenson, North Dakota State Univ, Fargo, ND, USA,

Document Type: Proceeding Paper

Part of: Materials and Member Behavior


An experimental investigation on the bending strength of 26 gage cold-formed corrugated steel straight panels with web-depth to thickness (h/t) ratio of 475 is presented. A typical test specimen is 7 ft. (213 cm. ) wide, 14. 5 ft. (442 cm. ) long and consists of three corrugated panels connected side by side with an overlap on the bolt lines. The buckling mechanism and bending strength of the panels loaded at the one-third and two-third points were studied by recording axial strains and transverse deflections at stepped load intervals which continued until the specimens collapsed. For all the test specimens, the bending failure occurred by elastic buckling of the compression flange.

Subject Headings: Cold-formed steel | Bending (structural) | Panels (structural) | Flexural strength | Strength of materials | Steel structures | Buckling | Structural strength

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