Comparación de resultados entre análisis sísmico dinámico modal espectral y análisis estático no lineal (Pushover) del edificio centinela Town House 300 de 4 niveles ubicado en la Provincia de Santa Elena.
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2019-09
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Universidad de Guayaquil- Facultad Ciencias Matemáticas y Físicas- Carrera de Ingeniería Civil
Resumen
Se evaluó la edificación Centinela Town House 300 ubicado en la ciudad de Santa Elena, con Análisis sísmico modal espectral y análisis estático no lineal. Con los planos estructurales se procedió a revisar si los elementos cumplían con los mínimos aceros de refuerzo requeridos por la norma NEC 2015.
Usando el software de diseño estructural ETABS se procedió a modelar tridimensionalmente la estructura usando los materiales y secciones especificadas en los planos, posteriormente se usó un sismo de diseño inelástico realizado con las especificaciones sugeridas en la NEC 2015 que dependía de la ubicación de la estructura como del tipo de suelo.
Una vez realizado el modelado se procedió a verificar si el edifico cumplía con los requisitos mínimos y se comprobó que este cumplía con las derivas satisfactoriamente ya que no excedía el límite de 0.02% que la NEC 2015 establece como límite se procedió a verificar los desplazamientos máximos, así como los cortantes y los modos de vibrar de la estructura.
Para el análisis estático no lineal se procedió modificando los materiales para que se comporten de manera no lineal mientras se asignaban los parámetros necesarios como lo son los estados de carga, las fuerzas laterales equivalentes así como los caso de carga no lineales, usamos espectros elásticos de demanda sísmica necesarios para observar su comportamiento, dando como resultados que la estructura se comportaba de manera satisfactoria para los diferentes sismos propuestos pero necesitaban un leve refuerzo para optimizar su funcionamiento.
The building was evaluated Centinela Town House 300 located in the city of Santa Elena, with spectral modal seismic analysis and nonlinear static analysis. With the structural plans we proceeded to check if the elements met the minimum reinforcement steels required by the standard NEC 2015. Using structural design software ETABS the structure was modeled three-dimensionally using the materials and sections specified in the plans, then an inelastic design earthquake was carried out with the specifications suggested in the NEC 2015 which depended on the location of the structure and the type of soil. Once the modeling was completed, the building was verified if the building complied with the minimum requirements and it was verified that it complied with the drifts satisfactorily since it did not exceed the limit of 0,02% that NEC 2105 It establishes as a limit the maximum displacements were verified, as well as the shear and the vibrations of the structure. For the non-linear static analysis, the materials were modified so that they behave in a non-linear manner while assigning the necessary parameters such as load states, equivalent lateral forces as well as non-linear load cases, we use elastic spectra of Seismic demand needed to observe their behavior, resulting in the structure behaving satisfactorily for the different earthquakes proposed but needed a slight reinforcement to optimize their operation.
The building was evaluated Centinela Town House 300 located in the city of Santa Elena, with spectral modal seismic analysis and nonlinear static analysis. With the structural plans we proceeded to check if the elements met the minimum reinforcement steels required by the standard NEC 2015. Using structural design software ETABS the structure was modeled three-dimensionally using the materials and sections specified in the plans, then an inelastic design earthquake was carried out with the specifications suggested in the NEC 2015 which depended on the location of the structure and the type of soil. Once the modeling was completed, the building was verified if the building complied with the minimum requirements and it was verified that it complied with the drifts satisfactorily since it did not exceed the limit of 0,02% that NEC 2105 It establishes as a limit the maximum displacements were verified, as well as the shear and the vibrations of the structure. For the non-linear static analysis, the materials were modified so that they behave in a non-linear manner while assigning the necessary parameters such as load states, equivalent lateral forces as well as non-linear load cases, we use elastic spectra of Seismic demand needed to observe their behavior, resulting in the structure behaving satisfactorily for the different earthquakes proposed but needed a slight reinforcement to optimize their operation.
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Sismo, Pushover, Desempeño, Análisis, Capacidad