Inspeção de onze pontes de concreto armado de acordo com a norma brasileira de inspeção de pontes

Abstract

Between 2002 and 2004, aware of the necessity in monitoring the emergence of anomalies and avoid serious structural problems, the National Department of Transport Infrastructure - DNIT already did inspections in Special Works of Art (OAE) analyzing its stability and characterizing it as good , suffering or precarious. Based on these inspections together with the road bridge inspection manual, the ABNT NBR 9452 was created in 2012 in order to establish the requirements for conducting inspections on bridges and concrete viaducts. The ABNT NBR 9452 introduces four types of inspections that can be done in any OAE according to need. They are cadastral, routine, special and extraordinary. In order to study the viability of widening eleven bridges on the BR-153 in the stretch between the cities of Erechim and Passo Fundo - RS, DNIT requested that cadastral inspections would be done on these OAE. Therefore, this work aims to present the results obtained in these cadastral inspections carried out in loco, according to ABNT NBR 9452 (2019) and NORMA DNIT 010/2004 - PRO. The major problem found in the OAE was the functional parameter, as the absence of paving and the insufficient width of the road prevent them from being used by the community for the transport of people and loads, partially performing as intended.