Rehabilitación sísmica de una Edificación ubicada en la ciudad de Bahía de Caráquez
Fecha
2019-09
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Universidad de Guayaquil- Facultad Ciencias Matemáticas y Físicas- Carrera de Ingeniería Civil
Resumen
El 16 de Abril del 2016, se produjo un sismo de magnitud M 7.8 , a 142 km de Bahía de Caráquez, donde el Edificio Punta Norte destinado a uso residencial, sufrió afectaciones en sus componentes estructurales y no estructurales.
Se realizo la evaluación detallada del edificio Punta Norte, mediante una inspección visual y el llenado de los formatos establecidos por el ATC-20, con la finalidad de identificar las deficiencias de los componentes, y clasificar a la estructura como inspeccionado, o de uso restringido, o inseguro. Según el Ingeniero Dammer, la edificación no presento afectaciones a nivel estructural después de ocurrido el sismo de Bahía de Caráquez de 1998, por lo que no se realizó un reforzamiento estructural, y las medidas correctivas se realizaron a nivel no estructural.
La edificación será sometida a una evaluación sísmica, donde se utilizara procedimientos de análisis dinámico lineal, y estático no lineal. Se usara en los procedimiento de análisis, las consideraciones de las normas vigentes tales como de la Norma NEC-2015 utilizada para la construcción de edificaciones a nivel nacional, y la Norma ASCE 41-13, utilizada como código internacional para la evaluación y rehabilitación sísmica de edificaciones.
Para la propuesta de rehabilitación sísmica, se utilizara las estrategias de encamisado de elementos estructurales, y la disminución de la masa; considerando el comportamiento deficiente generado en la estructura, debido a los cambios bruscos de sección de los dos pisos superiores de la edificación. Todas estas medidas permitirán mejorar el nivel de desempeño de la edificación.
On April 16, 2016, there was an earthquake of magnitude M 7.8, 142 km from Bahía de Caráquez, where the Punta Norte Building for residential use, suffered damages in its structural and non-structural components. The detailed evaluation of the Punta Norte building was carried out, through a visual inspection and the filling of the formats established by the ATC-20, in order to identify the deficiencies of the components, and to classify the structure as inspected, or restricted, or unsafe use. According to The Dammer Engineer, the building did not have structural impacts after the 1998 earthquake of Bahía de Caráquez, so no structural reinforcement was carried out, and corrective measures were carried out at the non-structural level. The building will be subjected to a seismic evaluation, where linear dynamic and static nonlinear analysis procedures will be used. It will be used in the analysis procedures, the considerations of the current standards such as the NEC-2015 standard used for the construction of buildings at the national level, and ASCE Standard 41-13, used as an international code for the evaluation and seismic rehabilitation of buildings. For the seismic rehabilitation proposal, structural component financing strategies and mass reduction will be used; considering the poor behavior generated in the structure, due to abrupt section changes on the top two floors of the building. All these measures will improve the level of building performance.
On April 16, 2016, there was an earthquake of magnitude M 7.8, 142 km from Bahía de Caráquez, where the Punta Norte Building for residential use, suffered damages in its structural and non-structural components. The detailed evaluation of the Punta Norte building was carried out, through a visual inspection and the filling of the formats established by the ATC-20, in order to identify the deficiencies of the components, and to classify the structure as inspected, or restricted, or unsafe use. According to The Dammer Engineer, the building did not have structural impacts after the 1998 earthquake of Bahía de Caráquez, so no structural reinforcement was carried out, and corrective measures were carried out at the non-structural level. The building will be subjected to a seismic evaluation, where linear dynamic and static nonlinear analysis procedures will be used. It will be used in the analysis procedures, the considerations of the current standards such as the NEC-2015 standard used for the construction of buildings at the national level, and ASCE Standard 41-13, used as an international code for the evaluation and seismic rehabilitation of buildings. For the seismic rehabilitation proposal, structural component financing strategies and mass reduction will be used; considering the poor behavior generated in the structure, due to abrupt section changes on the top two floors of the building. All these measures will improve the level of building performance.
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Palabras clave
Edificación, Evaluación, Rehabilitación, Sismo, Desempeño