Hysteretic Energy Demands for SDOF Systems Subjected to Narrow Band Earthquake Ground Motions. Applications to the Lake Bed Zone of Mexico City

This study proposes a way to estimate the hysteretic energy demands for oscillators subjected to narrow-band earthquake ground motions using an equivalent sinusoidal pulse. The parameters required to define the equivalent pulse are: the peak ground acceleration, the maximum of the Fourier amplitude spectrum, and the predominant period of the site. The equivalent pulse is utilized to compute the hysteretic energy demands associated to the design elastic pseudoacceleration spectra prescribed by the Mexico City Building Code and to construct damage index maps for systems designed according to this code and subjected to a seismic event with M = 8 and focal distance of 300 km.

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