Ingeniería Civil y Mecánica

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Subject: search.filters.subject.MÉTODOS DE EVALUACIÓN

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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 estructural del desempeño sísmico del edificio de la Facultad de Contabilidad y Auditoría de la Universidad Técnica de Ambato mediante la medición de vibraciones
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2022-06) Laura Guerrero, Edwin Humberto; Navarro Peñaherrera, Carlos Patricio
    To determine the seismic performance of the structure in its current state, a vulnerability analysis was performed by applying a qualitative and quantitative method. In the vulnerability analysis of the qualitative method, the rapid visual inspection technique described by FEMA 154 and NEC 2015 was used, taking into account the most relevant characteristics of the structure, the type of structural system, irregularities in plan and elevation, year and construction code, presenting a high vulnerability degree according to Fema 154 and a low vulnerability degree according to NEC 2015. In the quantitative analysis, a linear analysis was performed to know the structural behavior, where it was shown that they do not comply with the NEC 2015 standard, subsequently a non-linear static analysis was performed with the ATC-40 and FEMA-440 methodologies and where it was proven that the structure does not have enough capacity to reach the expected performance level according to the NEC 2015. With the results of the two methodologies, it was proposed the reinforcement at a global level with shear walls and at a local level with steel jacketing for beams and columns in order to ensure compliance with the performance levels. Finally, a comparison was made between the vibration periods obtained by the NEC-SE-DS methods and the period obtained by the empirical formulas based on environmental vibration studies, in order to relate the degree of vulnerability of the structure with the vibration periods.
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    Análisis estructural del desempeño sísmico del edificio de la Facultad de Ciencias Humanas y de la Educación bloque 2 de la Universidad Técnica de Ambato mediante la medición de vibraciones
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Civil, 2021-09) Llugsha Muqinche, Fatima Maribel; Navarro Peñaherrera, Carlos Patricio
    To determine the seismic performance of the structure in its current state, a vulnerability analysis was carried out applying a qualitative and quantitative method. In the vulnerability analysis of the qualitative method, the rapid visual inspection technique described by FEMA 154 and NEC 2015 was used, taking into account the most relevant characteristics of the structure, the type of structural system, irregularities in plan and elevation, the year and the building code, presenting a high degree of vulnerability according to Fema 154 and a low degree of vulnerability according to the NEC 2015. In the quantitative analysis, a linear analysis was carried out to know the structural behavior, where it was shown that no they comply with the NEC 2015 standard, subsequently a non-linear static analysis was carried out with the ATC-40 and FEMA-440 methodologies and where it was found that the structure does not have sufficient capacity to achieve the expected performance level according to the NEC 2015. With the results of the two methodologies, reinforcement was proposed at a global level with shear walls and at a local level with steel cladding for beams and columns in order to guarantee compliance with performance levels. Finally, a comparison was made of the vibration periods obtained by the NEC-SE-DS methods and the period obtained by the empirical formulas based on environmental vibration studies, in order to relate the degree of vulnerability of the structure with the periods of vibration.