Revisión del comportamiento durante el sismo del 16 de abril de 2016 de edificios en hormigón armado afectados por el sismo del 18 de agosto de 1980.

Abstract

This work analyzes the behavior of some reinforced concrete buildings located in the city of Guayaquil (affected by the earthquake of August 18, 1980) during the earthquake of April 16, 2016, emphasizing why most of these buildings had a good behavior. To do that, first one the information about the damage originated in the buildings during the mentioned earthquakes was collected. Then, using the Practical Manual for the Geological, Geotechnical and Seismic Characterization of the city of Guayaquil parameters such as the type of soil, period of soil vibration, acceleration and displacement design response spectra, were calculated. The acceleration and displacement elastic response spectra for 1 GDL systems (based on the earthquake acceleration records of April 16, 2016 taken from stations located in the city of Guayaquil) were developed. The effective R values and effective drifts were estimated, comparing the data obtained according to the period of building vibration calculated according to method 1 of the NEC-2015. Finally, in this publishing there are information about the damages seen in modern buildings (designed with the NEC 2002, 2011 or 2015) during the earthquake of April 16, 2016, and a comparison between the structural characteristics of modern buildings and old buildings; where forgotten engineering customs in the designs of modern buildings were determined.