Structural resistance to instability
Structural instabilities : General principles

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C2510 V2 Article

Structural resistance to instability


Structural instabilities : General principles

Author : René MAQUOI

Publication date: May 10, 2009, Review date: February 16, 2015 | Lire en français

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1. Structural resistance to instability

Regulatory checks on instability limit states, which are classified as ultimate limit states, use scientifically and technically sound procedures covering basic instability phenomena. However, they use approximate interaction relationships when two or more of these phenomena are likely to coexist.

In the series of articles devoted to instabilities, the emphasis is placed much more on concepts than on mathematical developments. The aim of these articles is not to constitute a treatise on stability, or rather instability, but to bring together the elements of knowledge useful for a physical and rational understanding of the rules that govern phenomena of instability.

1.1 Importance of instability in steel construction

The structural...

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