Browsing by Author "Oña Cifuentes Cristian Jair"

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    Comparación de diseños de vigas de alma abierta con conectores de corte de perfil angular y de varilla corrugada para determinar su grado de eficiencia
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Ingeniería Civil con Mención en Estructuras Metálicas., 2025) Oña Cifuentes Cristian Jair; Cevallos Cabrera Jorge Washington
    The purpose of this article is to compare the strength and deflections at the yield limit and maximum capacity provided by the composite system of an open-web beam with a solid slab and shear connectors using corrugated rebar and angles. The specimens were fabricated using materials from Ambato y Quito, Ecuador, including ASTM A36 steel, ASTM A615 steel, and concrete with a compressive strength of f'c = 210 kg/cm². These comparisons were based on the results obtained from a four-point bending test conducted on two six-meter-long specimens with corrugated rebar connectors and two with angle connectors. This research analyzed the efficiency of the specimens in dissipating energy in the elastic and plastic regions, their ductility, stiffness, structural behavior regarding deformations, and failure modes during the interactive load versus deflection process. The average capacity for each type of connector was determined, and comparative calculations were performed, revealing a 16% variation in the yield limit and a 6% variation in the plastic limit, concluding that the two systems differ in structural strength. The results also validate the accuracy of the calculation methodologies for the beam’s nominal moment resistance and the precision of the formulations adapted for shear connectors using rebar and angles, given that AISC and SJI do not provide a specific method for this type of connection.