Espectro de respuesta por grado de confiabilidad en fallas activas en zonas de subducción tomando en cuenta la magnitud del sismo, la distancia epicentral y los perfiles litológicos

Abstract

The present research work is based on alternative methodology to generate elastic design spectra by degree of reliability based on the seismic zoning map or seismotectonics of the place (Alviar, 2016), based on the University of California database, Berkeley, PEER (Pacific Earthquake Engineering Research Center) and the Japan NIED (National Research Institute for Earth Science and Disaster Resilience). A method is presented to generate response spectra with different degrees of reliability 50%, 90%, 95%, 98% and 99%. This method will be applied in active reverse faults in subduction zones, with magnitudes of earthquakes less than or equal to 8.8, previously knowing the lithology of the site and its respective epicentral distance. To verify the method, a comparison was made between the response spectrum generated in the investigation with the spectra of the earthquake that occurred in Ecuador on April 16 and its two replicas on May 18, 2016. As well as the comparison of the results obtained with the design spectrum of the Ecuadorian construction standard.