Phase I Report on Folded Plate Construction

Task Committee on Folded Plate Construction of the Committee on Masonry and Reinforced Concrete of the Structural Division, ASCE

Serial Information: Journal of the Structural Division, 1963, Vol. 89, Issue 6, Pg. 365-460

Document Type: Journal Paper


The various methods of analysis of folded plates, proposed to 1963, are reviewed and summarized. First consideration goes to the simple beam theories that neglect the effect of relative joint displacement, as in the original work by Ehlers and Craemer in Germany in the 1930's, that was subsequently introduced in the United States by Winter and Pei. This report then evaluates the more exact methods of analysis correcting for relative joint displacement subsequently developed by Gruber, Vlassov, Gaafar, Simpson, and Yitzhaki. Finally, the elasticity approach of Goldberg and Leve is considered. As a result of the study, the Committee recommends the use of the ordinary theory with correction for relative joint displacements. Methods in this acceptable category include those of Vlassov, Gaafar, Gaafar as modified by Simpson, Portland Cement Association Bulletin #3, and, finally, Yitzhaki. The report summarizes a method of analysis based on Gaafar's original paper and includes a numerical example for greater clarity. The Committee has also sponsored and recommends an article on folded plate analysis by Yitzhaki. A very complete Bibliography of the subject of folded plates both in English and other languages is included.

Subject Headings: Joints | Displacement (mechanics) | Folded plates | Construction management | Beams | Winter | Elastic analysis | Portland cement | Germany | Europe | United States

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