Ingeniería Civil y Mecánica

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Subject: search.filters.subject.AISC 360

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    Diseño sismorresistente de un edificio de 4 plantas en estructura metálica con un subsuelo en hormigón armado ubicado en la ciudad de Quito
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Ingeniería Civil con Mención en Estructuras Metálicas, 2024-09) Quintana Vásconez, Roberto Sebastián; Peña Jordán, Francisco Agustín
    The present thesis shows the structural design of a project located in a high seismic activity zone, with particular focus on seismic safety and compliance with applicable regulations such as AISC 341, AISC 360, AISC 358, NEC 2015, and ASCE 7-16. Based on previous geotechnical studies, a detailed analysis of soil conditions and expected loads was conducted to ensure a solid foundation for the structure. This analysis enabled the identification of the necessary seismic parameters to adapt the structural design to the specific characteristics of the terrain and ensure stability against seismic movements. During the project development, specialized software was used to perform structural modeling. Through these programs, seismic loads were precisely simulated, analyzing both the stresses and deformations that the structure could experience. This approach optimized the structural behavior, ensuring an adequate distribution of stresses and minimizing inter-story drifts and lateral displacements at each level. The results demonstrated robust structural performance under the seismic demands of the site, highlighting the implementation of cruciform steel columns. This structural solution maximized the building's efficiency, leveraging its high moment of inertia, which is essential for resisting lateral loads. Finally, the validation of the design parameters confirmed compliance with seismic design codes, ensuring that the building can withstand the expected seismic demands without compromising its safety or functionality. This comprehensive approach has allowed the development of an optimized structure that meets local requirements, providing a viable and safe solution for high seismic risk conditions.
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    Análisis de metodologías de rehabilitación sísmica de estructuras metálicas con aplicación en una edificación de tipo industrial ubicada en el cantón Ambato
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2020-09) Guerrero Flores, Héctor Octavio; Suquillo Ronquillo, Betzabeth Jessenia
    For the development of this research project, the structural plans of a representative industrial type metal structure were obtained, from these plans extracted information about loads, soil properties, material and structural configuration. The structure in the linear analysis complies with the provisions of the AISC 360-10 and NEC-SE-DS 15 standards, but the demand / capacity ratio of the structural elements in the truss-column and column-base joints are at the limit of their resistance. The nonlinear static analysis identifies the elements where the plastic hinges will be generated, corroborating that the critical elements are the same as in the linear analysis they have a high demand / capacity ratio, the real displacement that the structure can reach in the initial state is 14, 26 centimeters with a basal shear of 91.17 Tons - force in the X direction and in the Y direction, the displacement is 23.12 centimeters with a shear of 47.46 Tons - force. Seismic rehabilitation proposals were selected to accordance NEC-SE-RE 2015 and ASCE 41-17 standards, the selection of the rehabilitation methodology is based on the parameters of structural diagnosis, cost, time, architectural conditions / operational, material and labor available on the site, according to the behavior of each of the elements. The rehabilitation proposals applied are placement of steel plates, placement of diagonals and change of section, which represented an average reduction of 27 percent of the demand / capacity ratio, these rehabilitations are considered as the optimal seismic rehabilitation methodologies for this type of structures The total cost of the seismic rehabilitation applied is USD 1.751,94 (One thousand seven hundred fifty - one with 94/100 United States dollars).