Interaction Analysis of Asymmetric Sway Subassemblages
Publication: Journal of Structural Engineering
Volume 110, Issue 10
Abstract
A simple alternative elastic‐plastic method to account for the P‐Delta effects of asymmetric sway structures is proposed. The method is applied to story subassemblages and represents an extension of a similar procedure previously applied to plane frames. The failure load of a given story is determined on the basis of an interaction principle which incorporates the rigid‐plastic collapse load and the elastic buckling load of the story. In contrast to existing equivalent methods no iterations are required. A numerical example is provided to demonstrate the use of the technique.
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References
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Cheong‐Siat‐Moy, F., “Control of Deflections in Unbraced Steel Frames,” Proceedings of the Institution of Civil Engineers, London, England, Vol. 57, Part 2, Dec., 1974, pp. 619–634.
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6.
Scholz, H., “Overall Stability of Multi‐Storey Sway Frames Using a Storey‐by‐Storey Approach,” Proceedings of the Third International, Colloquium on Stability of Metal Structures, Paris, France, Nov., 1983, pp. 491–495.
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Scholz, H., “A New Multi‐Curve Interaction Method for the Plastic Analysis and Design of Unbraced and Partially‐Braced Frames,” thesis presented to the University of the Witwatersrand, at Johannesburg, South Africa, in 1981, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
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Copyright © 1984 ASCE.
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Published online: Oct 1, 1984
Published in print: Oct 1984
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