Propuesta de estructura de hormigón armado para residencia estudiantil de La Ups Sede - Guayaquil

Abstract

The following thesis addresses the structural design of a four-story reinforced concrete building located in the city of Guayaquil, a high-seismic-risk zone according to the NEC-15 standard. An effort was made to develop a new structure that incorporates Buckling-Restrained Braces (BRBs) from its inception, comparing its theoretical efficiency with that of a conventional rigid-frame design. Three models were generated in the ETABS software for the proposed structure: a baseline model (M-00) and two alternative design models with different damper placements (M-01 with 4 BRBs per level and M-02 with 8 BRBs per level). The methodology consisted of element sizing, spectral analysis, and verification by time-history analysis using the actual record of the 2016 Pedernales earthquake. The results of the proposed design show that the inclusion of BRBs provides significant stiffness, reducing the theoretical fundamental period by 20.4% and the design story drifts by up to 39% compared to the conventional solution. Furthermore, it was confirmed that the seismic demand from the Pedernales event (132 tonf) would only reach 20.8% of the proposed structure’s design capacity (637 tonf). It is decided that the M-01 structural solution (4 BRBs) is the best for ensuring the safety and functionality of the project.