Análisis de respuesta sísmica de viviendas de dos pisos, con sistema estructural de pórticos resistentes a momentos versus muros portantes.

Abstract

On April 16, 2016, Ecuador had the presence of a seismic movement, whose magnitude reached 7.8 on the Richter scale, its epicenter it was raised between the parishes of Pedernales and Cojimíes of the Pedernales canton, Manabí province, which left a balance of at least 671 human losses as a result of the collapse of civil infrastructure. This left in evidence the vulnerability of the houses built in the area in the presence of this type of seismic events, as well as non-compliance with the existing regulations (NEC-2015), which motivates the requirement of greater control of compliance with this, to guarantee the constructive quality and the structural safety of the buildings. The realization of the present practical work has as objective to evaluate the seismic response of two houses of two floors with different structural systems, these houses are located in an area of very high seismic risk (z ≥ 0.5), This allowed us to verify the implementation of the Ecuadorian Construction Standard (NEC) and determined which of the structural designs is the most appropriate in the face of a seismic threat. Two housing types of two urbanizations located in the city of Machala were selected, for the system of porticos resistant to moments, a house built of columns was selected, beams and walls of block masonry, while for load-bearing walls the house was built with reinforced concrete walls with electro-welded mesh.