Evaluación sísmica y diseño de reforzamiento estructural de una edificación de uso especial de 1133 m2 con pórticos resistente a momento de hormigón armado, ubicado en la ciudad de Guayaquil, aplicando la norma NEC-2015 a través del análisis PUSHOVER.

Abstract

Seismic safety of special-use buildings is a priority in areas of high seismic risk, such as the city of Guayaquil, Ecuador. This research focuses on the seismic evaluation and structural reinforcement design of a 1133 m² building with a concrete moment-resistant frame system. The main objective is to improve its seismic performance to ensure the life safety of its inhabitants and prevent collapse after a seismic event. The applied methodology is based on a non-linear static analysis (PUSHOVER), according to the guidelines of the Ecuadorian Construction Standard (NEC-2015). For this purpose, specialized software was used to model the structure and evaluate its response to monotonic lateral load applications. The initial evaluation allowed identifying critical structural weaknesses, such as deficiencies in columns, which may compromise the overall stability of the building. The reinforcement design included column casing techniques with additional concrete to increase the rigidity of the structure. The results show that the seismic performance of the building improved, meeting the displacement requirements of the NEC-2015 standard, ensuring the safety of its occupants and preventing collapse. The research demonstrates the effectiveness of the applied retrofit evaluation and design methodology, which can be replicated in other special-use buildings with similar structural systems. This work contributes to improving the structural resilience of critical buildings in high seismic hazard areas, reinforcing the safety of the community.