Estabilización de edificios de gran altura con sistema steel outrigger en pórticos ordinarios y muros estructurales para controlar respuesta lateral

Abstract

This study focuses on the evaluation of the "outrigger" system as an advanced structural solution to improve the stability and resistance of high-rise buildings against lateral loads, such as wind and earthquakes. The "outrigger" system consists of rigid horizontal beams that extend from the central core of the building to the perimeter columns, acting together to redistribute and balance the lateral loads, thereby minimizing deformations and lateral displacements. A structural model of a high-rise building was developed to perform a spectral dynamic analysis and a linear analysis to understand the behavior of the structure, including floor drifts and periods. From this analysis, it was found that the floor drifts were at the limit and the long periods failed to comply with the regulations set by the Ecuadorian Construction Code. Therefore, the implementation of the "outrigger" system is proposed to provide greater stiffness, reduce periods, and ensure the safety and integrity of the structure.