Verificación de desempeño sísmico de un edificio aporticado residencial de hormigón armado.

Abstract

This thesis aims to perform a nonlinear dynamic time-history analysis on a reinforced concrete structure, considering the canton of San Juan Bosco, Morona Santiago province, as the study area, where intermediate or firm soil types are predominant. To characterize the seismic demand of twelve spectrum-compatible accelerograms was used, adjusted to the design acceleration spectrum established in the Ecuadorian Construction Code (NEC-15) for return periods of 475 and 2500 years. For the structural analysis, the building was modeled using specialized software, incorporating plastic hinges into the structural elements to evaluate their behavior under severe seismic loads. The dynamic response of the structure was assessed based on interstory drifts, displacements, and internal forces, following the guidelines of the NEC-15, ASCE 41-17, and HAZUS by FEMA. Based on these results, the seismic performance level of the building was determined, and potential structural vulnerabilities were identified. This research highlights the importance of applying nonlinear analysis models in mid-rise buildings with special configurations to improve the accuracy of seismic response assessments, providing valuable information for future regulations and structural reinforcement projects in Ecuador.