Propuesta de reforzamiento de un edificio afectado en el sismo del 16 de abril de 2016 ubicado en la ciudad de Portoviejo utilizando disipadores de energía de fluido viscoso.

Abstract

The present study proposes the Pontificia Universidad Católica del Ecuador seat Manabí building reinforcement, affected by the April 16, 2016 earthquake. The propose consist in implementing viscous fluid energy dampers, being an alternative to the commonly reinforcement methods used in our environment. Viscous fluid energy dampers are mechanical devices, which allows energy dissipation in form of heat. These devices are located in the frames of the structure and their main function is to provide grater damping without altering their stiffness or their natural oscillation period. The design and evaluation of the dampers was done through the time history analysis, which is a dynamic analysis consisting of the study of the response of the structure against a set of seismic signals; in addition, a non-linear analysis was carried out, which allows to evaluate the structural performance through the insertion of plastic hinges in each element. Once the analyzes for the structure, the results showed that the reinforcement reduced the drifts by 56%, the accelerations by 41% and the displacements by 51%. It was also found that the dampers absorb 81.77% of the seismic energy and increase the damping of the structure by 15%.