Effect of Concrete Slab on Built-up Double Web Castellated Steel Beam under Combined Flexural and Torsion Load
DOI:
https://doi.org/10.56294/sctconf2024840Keywords:
Castellated Beam, Built-Up, Double Web, Castellation Ratio, Concrete SlabAbstract
The research examines the behavior and reactions of six double-web steel sections of non-composite and composite-reinforced concrete deck slabs and castellated steel beams. The composite beams with concrete slabs and non-composite steel beams with different levels of castellation were isolated from the specimens at 0 %, 25 %, and 50 %. The ultimate strength, load at cracking, failure mechanism, load/deflection relationship at midspan, stiffness, and ductility were evaluated. The concrete slab increased the ultimate load by 61,1 %, 63,3 %, and 55,5 % for castellation ratios of 0 %, 25 %, and 50 %, respectively. The non-composite and composite castellated beams' shear strength decreased as the expansion ratio increased. The angle twist of non-composite samples was greater than that of composite samples due to their greater ductility and lower stiffness. The concrete slab also restricted the samples and reduced their rotation
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Copyright (c) 2024 Farroq A .Abass , Alaa M. Al-Khekany (Author)
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