Browsing by Author "Molina Peralvo, Fabián Alexander"

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    Diseño de perfiles conformados en frio de sección UV, de acero ASTM A36 utilizados para la construcción de torres de telecomunicaciones.
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Ingeniería Civil con Mención en Estructuras Metálicas, 2024-10) Molina Peralvo, Fabián Alexander; Peña Jordán, Francisco Agustín; Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica
    It is a challenge for engineering to modernize telecommunications structures by improving their strength and reducing failure rates under higher wind loads. It is essential to deepen the understanding of the behavior of these structures. The objective of this research was to design a UV-shaped profile in ASTM A36 cold-formed steel, in accordance with AISI 100-16 standards, for application in telecommunications towers. During the development of the project, it was analyzed whether there was a reduction in the effective area following the parameters of the AISI S902 standard, comparing these results with a mathematical model and conducting laboratory tests. As a result, no reduction in the effective area was observed in the UV profiles; in the tests, which are the most accurate method, no significant change was detected. This information was corroborated through hypothesis testing. On the other hand, the design of these profiles was optimal, and their strength meets the applied methodology. A wind load of 1500 kgf was assumed, which pushed a section of a triangular crosssection tower to its limit, achieving a demand-capacity ratio of 87 percent, demonstrating that the UV-shaped profile is suitable for structural use. Finally, following the AISI 100-16 methodology allowed for the establishment of criteria for efficient design, providing specific guidelines that ensure the profiles meet the safety and performance standards required for use in telecommunications towers. It was identified that UV-shaped profiles offer good performance in terms of structural strength, making them an efficient and economical option for this type of structure.