A literature review on the structural behavior of high strength steel columns

Uma revisão de literatura acerca do comportamento estrutural de pilares de aço de alta resistência

Abstract

Steel is an essential material for engineering due to its properties, such as strength, and durability. High strength steels (HSS) have the potential to enhance these qualities, particularly in the construction of taller, lighter, and more slender structures. However, there remains a knowledge gap regarding the structural behavior of these materials. In this context, the present study aims to evaluate, through a Systematic Literature Review (SLR), the methods employed by researchers to determine the structural behavior of high strength steel columns subjected to compression and flexural compression in both principal axes of inertia. Research findings have highlighted significant limitations in the current design methods for high-strength steels, which were originally developed for conventional materials. Specifically, factors such as steel type, cross-sectional dimensions, residual stresses, and initial geometric imperfections have proven to be critical in determining structural performance. It was observed that applying existing design methods may result in overly conservative solutions or, in some cases, fail to adequately account for the behavior of high-strength steels in structural calculations and verifications.

Keywords
High strength steel; Structural analysis; Flexo-compressed columns; Design methods