Maestría en Ingeniería Civil con Mención en Estructuras Metálicas

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Author: search.filters.author.Allauca Llamuca, Miguel AngelSubject: search.filters.subject.SECCIONES COMPUESTAS

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    Evaluación de estado límite por deflexión en losas con vigas compuestas tipo Joist fabricadas con acero ASTM A36
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Ingeniería Civil con Mención en Estructuras Metálicas, 2023-03) Allauca Llamuca, Miguel Angel; Cevallos Cabrera, Jorge Washington
    The goal of this project is to evaluate the limit state to deflection in slabs with composite Joist beams made of ASTM A36 steel, considering the floor systems frequently used in our country. The Joist beam design was carried out for a free length of 5.00 m and an effective width of 0.40 m, considering the specifications established in the Ecuadorian Construction Standard for the quantification of loads, then, the structural analysis of the beam was carried out in the structural analysis program to obtain the axial loads in tension and compression of the bars that are part of the Joist, and by using the SJI specifications, the upper and lower chords, diagonals of the beam web, the saddle and the shear connectors were designed. The limit state deflection analysis was carried out in the structural analysis program for the three case studies proposed in the project: Joist beam designed as noncomposite, Joist beam composed with solid slab and Joist beam composed with steel deck, applying different load values. The beams were manufactured in the VIGA-TEC workshops, located in Quito, and were transported to Ambato, to assemble the formwork and cast the concrete to form the composite sections with solid slab and steel deck. The concrete used was made with aggregates from Peninsula’s quarry of Ambato for a compressive strength of 21MPa. The experimental load/strain test was carried out at the Technical University of Ambato at the Ingahurco campus following the requirements of the AISC 360-16 and American National Standard SJI 200 - 2015 codes. Finally, the results of the experiment were used to evaluate the deflection limit states of the three case studies presented in this project.