Desempeño de edificios esenciales durante sismos en Ecuador - caso instalaciones militares, de policía, bomberos y defensa civil.

Abstract

The information on the buildings affected in the earthquakes, was collected from the different newspapers in circulation in Ecuador, magazines from the construction sector, technical reports made by national and international institutions related to the construction sector, such as the RADIUS project, the report presented by the GEER. With the buildings to study identified; the elastic design spectra were found, from the seismic hazard curves for capital cities, for frequent, occasional, rare and very rare earthquakes, according to the method indicated in NEC-15, in the seismic danger section. Soils were found and classified where the different buildings and seismic stations selected are based, according to the classification of NEC-15. With the acceleration records of the different stations, the acceleration and displacement site response spectra were found for the cities of Guayaquil, Portoviejo, Manta and Bahía de Caráquez. The respective periods of each of the structures studied were calculated, according to the method indicated in NEC-15, inelastic drifts were also obtained and the value of the effective reduction factor of elastic response was found. Then, the type of earthquake that acted on the building studied was classified. Finally, the seismic performance of the buildings was evaluated, as specified in NEC-15 and depending on whether the structure continued to provide services after the earthquake or otherwise. The causes of good or bad performance for each sample building were also indicated.