Estudo comparativo do desempenho estrutural de um edifício de 12 pavimentos com pórticos rígidos e núcleo rígido

Abstract

This study develops a comparative analysis between two structural models applied to a multi-story reinforced concrete building: the rigid frame system and the rigid core system. The main objective was to evaluate the structural performance of each model on the structure's global stability, as well as on lateral displacements and material consumption. The research was conducted using computational simulations performed with the TQS® software, based on a 12-story residential building hypothetically located in the city of Toledo, Paraná. The results demonstrated that while both systems can achieve similar global stability, the rigid core model resulted in smaller displacements and better material optimization, consuming 4.34% less concrete and 4.97% less steel compared to the rigid frame model. Thus, it is concluded that although the rigid frame system is viable for buildings up to 12 stories, the use of a rigid core tends to provide better structural performance and greater construction efficiency in multi-story buildings.