Ingeniería Civil y Mecánica

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    Diseño y análisis del comportamiento estructural de un edificio en la ciudad de Ambato mediante el uso de disipadores sísmicos.
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Ingeniería Civil con Mención en Estructuras Metálicas., 2025) López Sánchez José Luis; Cañizares Ortega Freddy Fernando
    This research project presents a comparative analysis of the seismic performance of a special building located in Ambato, utilizing Special Moment Frames (SMF) and Buckling-Restrained Braces (BRB). The main objective of the study is to evaluate the structural performance in terms of strength, capacity, stiffness, and nonlinear behavior under seismic loading. The proposed design for the steel structure incorporates BRB frames, aimed at minimizing deformations induced by seismic events. These systems utilize braces with ductile cores and replaceable assemblies, which enable efficient energy dissipation. The applied methodology is based on international standards such as AISC 360, AISC 341, NEC 15, and ASCE 41-17, covering literature review, soil analysis, load estimation, nonlinear time history analysis, and unit cost comparison. The results show that BRB systems offer superior seismic performance compared to moment-resisting frames, without involving a significant increase in implementation costs. However, it is important to note that the findings of this research are specific to the soil and loading conditions of the analyzed structure; therefore, further studies are recommended for other types of buildings and geotechnical contexts.
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    Análisis comparativo del comportamiento sísmico de una estructura de hormigón armado de diseño convencional frente a un modelo con disipadores de energía tipo BRB y su incidencia en la relación costo/beneficio
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2023-01) Sánchez Arcos, Alex Francisco; Peñafiel Valla, Lourdes Gabriela
    For the present research work, a comparative analysis of the seismic behavior between a conventional system and a system with BRB-type energy dissipators was carried out in a 6-story building with a total area of 291.38 m2. The structure is located in the city of Ambato and is classified as essential according to the provisions of the Ecuadorian Construction Standard. The methodology of a nonlinear static analysis (Pushover) was extracted to evaluate the performance of each structural system based on an earthquake with a return period of 475 years, with an exceedance probability of 10 percent in 50 years. For the design of the structural elements, as well as the BRB energy dissipators, both national (NEC 15) and international standards were used: American Society of Civil Engineers (ASCE 7-16, ASCE 41-13), American Concrete Institute (ACI 318-14), American Institute of Steel Construction (AISC 341-16). Obtaining displacement results, derivatives of floors, optimal structural elements, seismic behavior and performance levels of the two structural systems under study.