Evaluación de la respuesta sísmica para la rehabilitación estructural del bloque 5 del campus Machala

Abstract

Our country has experienced several earthquakes in recent years, including the most recent one on Puná Island on March 18, 2023, resulting in significant structural damage, including Block 5 of the Machala campus. In order to identify the main deficiencies at a general level and in structural elements such as beams and columns, we have followed the ASCE 41 standards (American Society of Civil Engineers. Seismic evaluation and retrofit of existing buildings), along with the NEC-2015 Construction Code, aiming to comply with seismic design standards. To achieve this, a mathematical model has been developed, allowing for spectral dynamic analysis and nonlinear analysis (Pushover). This has enabled the derivation of capacity curves for the structure, determining the level of damage in beam and column connections. Based on this damage, the implementation of a steel exoskeleton is proposed to provide greater stiffness to the building and ensure the safety of its occupants