Résumé:
This study focuses on evaluating the critical buckling load, both locally and globally, of
columns integrated into multi-story structures. The methodology is based on a rigorous
structural analysis, using the finite element method (FEM), combining numerical modeling,
analytical approaches, and normative compliance according to CM66 and EC3 standards. The
analysis of the local buckling critical load examines the stability of the column section, while
the global evaluation focuses on the stability of the entire structure. Particular attention is
paid to the influence of load proximity, element configuration, and support properties.
Analytical methods, including Euler's theory and stability criteria, are integrated with
numerical simulations to refine the accuracy of the evaluation. The main objective of this
research is to identify the determining factors of buckling resistance, including effective
length, cross-section, and support conditions. The conclusions of this study will serve to
formulate recommendations aimed at optimizing the design and improving the safety of
buildings. In conclusion, this study contributes to a thorough understanding of structural
behavior under critical loads.
