Analysis of flexural capacity of a novel straight-side U-shaped steel-encased concrete composite beam

This paper proposes a novel straight-side U-shaped steel-encased concrete composite beam (SUSCCB). The SUSCCB is constituted by encasing the top sections of steel plates directly into flange, with action generated through perfobond connections consisting reinforcement bars transversely passing perforations in encased plates. It engineered to overcome shortcomings existing varus or valgus beams (USCCB), for which installation shear connectors can be complex and costly achieve because numerous required welds. main objective this study flexural behavior proposed develop method calculating its capacity. A finite element model (FEM) developed validated against available USCCB experimental results. After, FEM used conduct parametric SUSCCB. assessed from strain distribution, stress analysis, load–deflection curves. Results show that performance superior traditional USCCB, capacity calculated simplified plastic theory. Lastly, analytical derived. values close agreement results numerical simulations.