Evaluación estructural del bloque 3 del mercado tipo centro comercial en la ciudad de Santa Rosa bajo la respuesta sísmica de la n.e.c.-2015 y c.e.c.-2002

Abstract

It is justified that Ecuador, being part of the Pacific Ring of Fire, is witness to suffer seismic movements of great magnitude where the level of structural performance throughout its history has been deficient due to the omission of the regulations, evidencing the limited supervision and maintenance of existing buildings, such as the “Mercado Tipo Centro Comercial” in the city of Santa Rosa, This work focused on a structural evaluation of block 3, which has undergone modifications in certain areas of its original design and thus identify the shortcomings that compromise these changes due to earthquakes under construction standards, through its modeling in the E.T.A.B.S. software, since it had been previously designed with the C.E.C. - 2002, which nowadays is the N.E.C. - 2015, the evaluation used the design spectrum in accelerations for a rare earthquake hazard given a return period of 475 years with controls in international technical specifications. The data showed that the Ecuadorian Construction Standard requires a higher seismic response being subject to large inelastic forces compared to the Ecuadorian Construction Code which, by generating smaller displacements, does not accurately demonstrate the current seismic reality during a seismic event.