Recent Advancements and Challenges in Flexural Buckling Analysis for Cold-Formed Steel Structures

Abstract

Flexural buckling is an essential variable to consider when designing thin cold-formed steel components since it has a substantial impact on their stability and structural efficiency. Cold-formed steel (CFS) elements have become more common in modern building techniques due to their several benefits, such as a high ratio of strength to weight, straightforwardness of production, and cost efficiency. However, CFS components are susceptible to several types of instability, especially flexural buckling, due to their lightweight structure. The objective of this investigation is to improve the understanding of flexural buckling analysis by thoroughly investigating relevant studies, design principles, analytical approaches, and experimental tests. In addition, the study discusses recent progress in the field, including the application of modern materials such as high-strength steel and the incorporation of finite element analysis (FEA) to accurately model and anticipate flexural buckling behavior. It emphasizes the difficulties that come with these advancements, highlighting the need for improved material models and computing resources. The study emphasizes how important cold-formed steel constructions' structural performance and flexural buckling behavior are in relation to their longevity, material aging, and prolonged exposure to different loads. The goal of this literature review is to provide structural engineers, scholars, and practitioners with an extensive resource. It provides crucial insights into the behavior of flexural buckling analysis for cold-formed steel structures, summarizing recent advancements and difficulties in the field to help with construction design and integration decision-making.