Vulnerabilidad sísmica del parqueadero municipal del Gobierno Autónomo Descentralizado de Ambato, ubicado en la calle Cuenca y Montalvo

Abstract

Ecuador is located in the ring of fire, so different earthquakes at various levels are very common, the structures must be designed to withstand an earthquake of a rare level, the constructions must be ductile; the ductility is the time that the occupants of the structures have to be able to go out to a safe place, the secondary waves of the earthquakes are the ones that knock down the buildings, through the present study a building located in the central area of Ambato was taken as a sample , this structure should be in a life safety acceptance criteria, to start the present study the forms established by FEMA 154 and NEC 2015 were used and a visual inspection of the structure was carried out to know the irregularities in plan and elevation, In addition to knowing pathologies that the structure has, the main pathology is the short column, the parameters of the forms were established and it was concluded that it has a medium seismic vulnerability, with this information a nonlinear static analysis was carried out, it was necessary to use a computer program such as Etabs19, where the steel area was placed in each of the beams and columns, with this information formation we obtainedxxiv the plastic hinges, as well as the performance point and the capacity of the building under study, in which it was observed that the structure does not meet this acceptance criterion for the design earthquake, which is why it is necessary to carry out a reinforcement in beams, but above all in C2 columns, which are the columns that act the most in these two buildings. There are several methodologies for reinforcing structures among the most common (reinforcement with carbon fiber, reinforcement with screeding of structural elements and reinforcement with steel), reinforcement with angles and plates of A36 steel was chosen, these angles fastened with plates and bolts they help to gain ductility and more shear strength of the structure in order to meet the acceptance criteria for this type of building, which is life safety.