Ingeniería Civil y Mecánica

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Subject: search.filters.subject.ENSAYO ESCLEROMÉTRICO

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    Análisis estructural del desempeño sísmico del edificio multifamiliar “Peña Mendoza” de hormigón armado de la ciudad de Santo Domingo de los Colorados, ubicado en la cooperativa 30 de Julio mediante el método de vibraciones
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2022-09) Cabascango Chuquirima, César Augusto; Peñafiel Valla, Lourdes Gabriela
    Since the structure did not meet the expected seismic performance level, a vulnerability analysis was performed using qualitative and quantitative methods proposed in FEMA 154 and NEC 15. In the vulnerability analysis performed with the qualitative method proposed by FEMA 154 and NEC 15, a quick visual inspection of the entire structure was performed, taking into account each of the characteristics such as irregularity in plan and elevation, year of construction, construction code used; data necessary to calculate the degree of vulnerability of the structure, which presents a high degree of vulnerability according to FEMA 154 and a low vulnerability according to NEC 15. In the quantitative analysis, a linear analysis was carried out to determine the structural behavior, which complies with all the parameters established in the Ecuadorian Construction Standard NEC 15; subsequently, the non-linear analysis (pushover) determined that it does not comply with the performance levels expected and proposed by VISION 2000. Finally, a reinforcement was proposed through the implementation of shear walls that allowed an adequate level of structural performance in the event of an earthquake. As a result, the shear walls were able to reinforce the current structure, thus complying with the seismic performance expected in a basic structure.
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    Análisis de vulnerabilidad sísmica con la medición de vibraciones y reforzamiento dinámico del edificio de la Facultad de Contabilidad y Auditoría bloque 2 de la Universidad Técnica de Ambato.
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2021-08) Miranda Villegas, Franklin Danilo; Ureña Aguirre, Maritza Elizabeth
    In the present research, was accomplish the Seismic Vulnerability Analysis of FCAUTA-B2´s building, applying two methodologies, the first qualitative method based on a visual analysis, uses matrices established by FEMA154 and NEC2015, whose qualifying parameters focus on the characteristics of the structure, such as type of soil, regulations, irregularities and structural system. The result based on the two regulations offer a low risk level. The quantitative methodology consisted in a linear and non-linear analysis, where soil studies and trials were necessary to get important characteristics. With the results gotten, it was possible to specify that at the global level the structure presents torsion on floor with high drifts; consequently, at structural level, the elements don’t bear the different levels of seismic hazard, result on a high degree of vulnerability. Once the structural deficiencies were identified, a reinforcement proposal was made, which first point was to correct the torsion and drifts with the implementation of shear walls; Next, a steel cladding was applied for columns that had a very poor demand / capacity ratio, but once it was reinforced showed a considerable improvement. Finally, with the applied reinforcements, an optimal seismic performance level was obtained, with a life safety range for a special occupation earthquake. Regarding the vibrations of the structure, a comparison of periods based on empirical formulas belong on environmental vibrations was made, relating the structure to a medium threat level without reinforcement and a low level once the building was reinforced.