Consideração do cisalhamento adicional em pilares de edifícios de concreto devido às alvenarias de preenchimento submetidos a ações sísmicas

Abstract

The consideration of infill masonry in the structural analysis of reinforced concrete structures subjected to seismic actions still requires advancements for its application in structural design. Specifically, structural models must enable the determination of the additional shear force in columns due to the interaction between masonry and the structure. This study aimed to conduct a comparative analysis of simplified models designed to determine the maximum shear force in columns of concrete buildings subjected to seismic actions, taking into account the masonry- structure interaction. The evaluated models include the one proposed by Basha and Kaushik (2019), the model developed by Trapani et al. (2023), and the double diagonal model studied by Crisafulli and Carr (2007). Utilizing a single-story frame as a case study, the effectiveness of these models is examined in terms of their ability to capture the forces acting on the columns. Additionally, a practical example involving a four-story frame is presented. The results are presented in comparative graphs to provide a comprehensive understanding of the models for their application in structural designs, particularly in scenarios involving seismic actions.