UNA MEDIDA DE INTENSIDAD SÍSMICA QUE PREDICE EL COMPORTAMIENTO NO LINEAL Y EL EFECTO DE LOS MODOS SUPERIORES
DOI:
https://doi.org/10.18867/ris.90.12Resumen
El objetivo de este trabajo es analizar la eficiencia de una medida de intensidad sísmica (IS) capaz de predecir tanto el comportamiento no lineal como el efecto de los modos superiores de estructuras sometidas a sismos de diversas características. La medida definida como intensidad de Bojórquez está inspirada en un parámetro para caracterizar la forma espectral denominado Np. Aunque normalmente la forma espectral más utiliza es en términos de la pseudo-aceleración, en este trabajo con la finalidad de mejorar la eficiencia de la medida de intensidad, se utilizan otros parámetros tales como velocidad y desplazamiento. La eficiencia de la medida de intensidad sísmica aquí presentada se obtiene al someter varias edificaciones de acero a movimientos sísmicos registrados en suelos con distintas características. Se concluye que el parámetro analizado muestra buena relación con la respuesta estructural y es más eficiente que otras medidas de intensidad sísmica usadas frecuentemente.
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