Reinforcements in Structural Masonry Prisms: A Numerical Study of Static and Dynamic Characteristics

Resumo

Structural masonry is one of the oldest structural systems explored and currently has great relevance
due to its economic competitiveness. Still, the need for structural reinforcement in this system is ever more
common, either by restoring older structures or by changes in the behavior of static and dynamic loads on the
systems. Thus, it becomes more necessary to know the dynamic characteristics of structural masonry walls,
including those with structural reinforcements. This need occurs because of the wall’s slenderness and also since
these structures are subject to dynamic loads such as those caused by winds and earthquakes - which may be
unforeseen additional loads due to recent changes in their territorial scope. Thus, this paper observes three different
numerical models referring to concrete structural masonry prisms. The first type of prism was an Unreinforced
Masonry (URM), the second was a Reinforced Masonry (RM) with a steel bar and grout, and the third type is
reinforced by Fiber Reinforced Cementitious Matrix (FRCM). Therefore, the responses of the numerical models
of the prisms to static loads were observed, using a load prediction for the models, in addition to an analysis of the
vibration modes and the respective excitation frequencies.