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The Influence of the Technical Standards Revisions on Old Bridges in Brazil

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Abstract (2. Language): 
This article assesses the conditions of the old bridges in Brazil, built about 50 years ago, before the current Technical Standards criteria of structural analysis. It presents a historical research of the Brazilian situation in order to provide an overview of the main geographic, political and technical aspects. It is exposed the relevance of this issue in the national scenario concerning bridge’s projects in Brazil. The methodology used was the study of a hypothetical case of an old bridge, with characteristics commonly found in the Brazilian Roadway Infrastructure. It was possible to quantify the influence of the revisions of the normative criteria on the girders of an old bridge through the simulation of loading conditions set in the current Technical Standards. Then, the safety conditions were verified by comparing the structural analysis results of the girders according to the old and current Technical Standards criteria. By presenting the results of this research, it is expected to contribute to the public policies concerning the management of public civil works in Brazil.
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REFERENCES

References: 

[1] Brazilian Technical Standards Association, “NB-1:1960 – Calculation and Execution of Reinforced Concrete Constructions”, ABNT, Brazil, 1960.
[2] Brazilian Technical Standards Association, “NB-2:1961 – Calculation and Execution of Reinforced Concrete Bridges”, ABNT, Brazil, 1961.
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F. S. Cerbino has a Barchelor degree in Civil Engineering from Fluminense Federal University (UFF – 2010) and a Master degree in Projects of Concrete and Steel Structures from Federal University of Rio de Janeiro (UFRJ – 2015).

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