Analysis of the modal response of a structure considering the periodic foundation effect

Resumo

The densification of the areas of urban structures has caused structures in general that are increasingly
approaching road traffic and this scenario, with which the structures are presented in these environments as being
the environment caused by the flow of traffic. studies that predict structures designed by traffic but do not address
technical/intelligible isolation isolation from manipulation/insulation intelligibility. The vibrations generated by
the impact cause discomfort to building users in addition to causing damage to buildings, including cracking or
even more serious problems such as the collapse of the structure. Research shows that it can isolate the use
of periodic structures as vibrations of a structure. The idea is that these periodic structures work like a filter,
absorbing as frequency bands, not passing this vibration on to the rest of the structure. Periodic structures are
being used in several areas of engineering, however, with limited use in civil engineering. In this context, this
work intends a numerical modeling in finite elements of a structure with a periodic type foundation, to study the
vibrational construction of the foundation, in comparison with a simple foundation structure. In other words, the
model is based on the development of the soil-structure coupling of finite elements, adopting the contour structure
as a basis for the study between conditions as foundations as well as between the foundation and the foundation.
Numerical modeling in finite elements was performed in the free and open source software FreeCAD version 0.19
with analysis performed in the solver Calculix. The modal response will be used to verify the filtering of the
structure’s vibrational response.