Evaluación de la vulnerabilidad sísmica de edificaciones de estructuras metálicas en la parroquia Atahualpa, Ambato, Ecuador: Propuesta de reforzamiento estructural de una edificación representativa

Abstract

The present investigation consisted in the evaluation of the seismic vulnerability of metallic buildings in the town of Atahualpa, this was used to evaluate and identified informal constructions, which need to be more analyzed, also this investigation was used to do a reinforcement proposition to an important building in the zone. In the first instance all the metallic buildings were identified and starting in that place the formularies of the normative FEMA P-154, NEC 15 and FUNVISIS, and finally stablish the vulnerability grade of the buildings. Subsequently, a summary table was obtained, where the vulnerability values, general data and prioritization index of the buildings were identified. Once the most important structure in the parish was selected, the structural design and analysis of the seismic behavior was carried out, through the linear spectral modal analysis, the linear time history analysis and pushover with and without dissipators, with which a structural reinforcement was proposed for a return period of 475 years, using viscous dissipators.