ABSTRACT
ABSTRACT: The River Douro is crossed by several outstanding bridges linking the cities of Porto and Gaia. The 19th Century metallic Maria Pia and Luiz I Bridges and 20th Century concrete Arrábida and S. João Bridges got, at the beginning of the 21st Century the company of the Infant Dom Henrique Bridge. The evaluation of the most relevant dynamic properties of the bridge, after completion, was performed by the Laboratory of Vibrations and Monitoring of FEUP, using both experimental and numerical tools. This study was also used to validate a finite element model of the bridge which will be the baseline model for future damage detection studies. In this context, the present paper describes the main features of the developed work and presents the obtained results, emphasizing the excellent correlation achieved between measured and calculated dynamic properties.
