Análise numérica das tensões na diagonal comprimida de um pórtico preenchido por alvenaria

Abstract

The present paper addresses a study in infilled frames, which is the name given to the existence of masonry within a frame and is considered influent in the behavior of the structure. At first, it is discussed the historical development of this theme and how it developed, its relevance and the main theoretical aspects related to it. An important fact is that this theme relates to the concept of equivalent diagonal, which consists of replacing the masonry panel in the frame with a diagonal of a certain width, given by equations existing in the biography, in order to simplify the necessary analyzes. This study develops by comparing the results obtained from numerical simulations of a reinforced concrete portal filled with masonry, with similar frames but filled with different equivalent diagonals. Also presents comparisons between application methods using the Ansys software, which uses the Finite Element Method, and Ftool software, which is free and simple to apply, in order to determine whether Ftool could be used with safety. Finally, it presents a total overview and comparison of the different results for each simulation, together with final comments on these. The panel's contribution is evident in the results, but there is the need to expand the study to achieve greater reliability in the definition of equivalent diagonal.