Universal Column Formula
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VIEW THE REPLYPublication: Practice Periodical on Structural Design and Construction
Volume 7, Issue 3
Abstract
The relationship among the moment, deflection, and buckling load of a structural member is used to develop an elegantly simple and unique expression referred to as the universal column formula (UCF). The UCF relates critical compressive stress to the entire range of member slenderness values for axially loaded columns with or without minor load eccentricity. The UCF is straightforward in appearance and application, yet it is sufficient to perform any axially loaded timber and steel column analysis and design. The UCF unifies the various formulations of column curves common to the field of structural engineering. Comparisons with the secant formula, the Euler curve, and The National Design Specification for Wood Construction and the AISC Design Specifications for Structural Steel Buildings are presented, and a practical application of the UCF is demonstrated.
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References
American Forest and Paper Association (AFPA). (1997). National design specification for wood construction, Washington, D.C.
American Institute of Steel Construction (AISC). (1986). Manual of steel construction load and resistance factor design specifications for structural steel buildings, Chicago.
Beer, F. P., and Johnston, E. R. (1981). Mechanics of materials, McGraw-Hill, New York, 544.
Dishongh, B. E. (2001). Essential structural technology for construction and architecture, Prentice-Hall, Upper Saddle River, N.J., 118–124.
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Published In
Practice Periodical on Structural Design and Construction
Volume 7 • Issue 3 • August 2002
Pages: 118 - 121
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Jun 28, 2001
Accepted: Jun 29, 2001
Published online: Jul 15, 2002
Published in print: Aug 2002
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