Flexural behavior of cold formed welded built-up steel I-girders
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Volume Title: ICASGE2023
DOI: ICASGE-STL
Authors
Karim Mahmoud Hussein
; Ahmed Shamel Fahmy; Tarek Ibrahim; Karim Mahmoud Hussein; Ahmed Shamel Fahmy

Civil engineering, Alexandria University, Alexandria, Egypt
Abstract
Cold-formed built-up steel beams are increasingly used as floor beams in buildings as they are much more sustainable than hot-rolled steel beams due to their high strength to weight ratio, lower cost, multiple cross-section shapes which are easily fabricated, their behavior and moment capacities are mainly influenced by different modes of buckling (local, lateral, torsional and distortional) when they are not adequately laterally restrained. This paper presents an experimental investigation and a numerical analysis on the bending strength and behavior of cold-formed welded steel I-beams subjected to pure bending moment. Three specimens are prepared and tested by subjecting them to a two-point loading system, the experimental results show the modes of buckling and their influence on the bending strength and behavior of cold formed welded I-sections, A coupon test is conducted to obtain material properties. Results are compared and validated with a finite element model created using the ABAQUS software followed by all appropriate recommendations.
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