Evaluation of the Seismic Performance of Structures with Energy Dissipators for the city of Quito in a Seismic Scenario

Abstract

In Ecuador, the seismic-resistant design is based on design philosophy by capacity and energy dissipation mechanisms based on damage. Consequently, after a severe seismic event, significant damage is evident in structural elements that require intervention, which sometimes is not viable and must be discarded. For this reason, the current trend is to design structures that allow functionality and contribute to the resilience of cities. This research article analyzes reinforced concrete and steel frames for 4, 8, and 12 floors with and without TADAS, SLB, and BRB-type energy dissipators. Subsequently, the capacity of the structures is determined by using a non-linear static Pushover type analysis. In addition, a non-linear dynamic analysis of the systems subjected to eleven accelerograms is performed, scaled accord-ing to a Quito seismic scenario for intensities of design for an earthquake T R = 475 years and a maximum considered at T R = 2475 years. Finally, seismic performance is evaluated using an ASCE methodology, and dynamic incremental analyzes are generated to build fragility curves.