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Minimum Required Lateral Stiffness of Structures

by Jean-Guy Beliveau, Univ of Vermont, Burlington, United States,
Hai-Yan Zhang, Univ of Vermont, Burlington, United States,



Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond

Abstract:

In this paper an approximate method is presented to calculate the minimum lateral stiffness required to insure global structural stability. The technique is based on setting the critical stability load of a structure equal to the critical buckling load of the primary member. It uses an approximation for the change in potential energy due to lateral displacement of the column and requires that the stiffness yield a positive energy. Sixteen examples of simple structures are analyzed, four of which have analytical solutions.

Subject Headings: Stiffening | Structural stability | Structural analysis | Lateral stability | Displacement (mechanics) | Critical loads | Buckling

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