@article{braido_pravia_2022,  title={Application of MEMS accelerometer of smartphones to define natural frequencies and damping ratios obtained from concrete viaducts and footbridge},  volume={15},  ISSN={1983-4195},  url={https://doi.org/10.1590/S1983-41952022000200006},  DOI={10.1590/S1983-41952022000200006},  number={2},  journal={Revista IBRACON de Estruturas e Materiais},  publisher={IBRACON - Instituto Brasileiro do Concreto},  author={Braido, Jorge Dalmas and Pravia, Zacarias Martin Chamberlain},  year={2022},  pages={e15206} }