CONTROL DE ACELERACIONES DE ENTREPISO PARA SISTEMAS ESTRUCTURALES CON AISLAMIENTO SÍSMICO DE BASE
DOI:
https://doi.org/10.18867/ris.87.155Resumen
Se evalúa la respuesta sísmica de una serie de sistemas simples con aislamiento sísmico de base para entender el efecto que las propiedades estructurales de dichos sistemas y de su super-estructura tienen en las demandas de aceleración de entrepiso. Se supuso que los sistemas estructurales
permanecen elásticos y que la disipación de energía en el sistema de aislamiento puede modelarse como amortiguamiento viscoso. La diferencia entre los niveles de amortiguamiento de la superestructura y el sistema de aislamiento fue tomada en cuenta a través de un enfoque de amortiguamiento no-clásico. Para la evaluación de la respuesta dinámica de los sistemas se
utilizaron movimientos del terreno registrados en sitios de suelo firme ubicados en la costa del Pacífico Mexicano. Una vez identificadas las propiedades estructurales que permiten el control de las demandas de aceleración de entrepiso, se discute el uso de un sistema equivalente de un grado de libertad para el diseño de sistemas estructurales de no más de cuatro niveles con aislamiento sísmico de base
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